/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:29:38,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:29:38,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:29:38,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:29:38,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:29:38,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:29:38,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:29:38,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:29:38,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:29:38,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:29:38,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:29:38,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:29:38,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:29:38,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:29:38,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:29:38,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:29:38,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:29:38,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:29:38,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:29:38,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:29:38,666 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 00:29:38,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:29:38,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:29:38,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:29:38,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:29:38,708 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:29:38,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:29:38,709 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:29:38,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:29:38,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:29:38,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:29:38,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:29:38,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:29:38,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:29:38,711 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:29:38,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:29:38,711 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:29:38,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:29:38,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:29:38,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:29:38,712 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:29:38,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:29:38,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:29:38,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:29:38,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:29:38,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:29:38,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:29:38,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:29:38,715 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:29:38,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:29:38,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:29:38,716 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:29:39,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:29:39,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:29:39,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:29:39,140 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:29:39,141 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:29:39,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-04-29 00:29:39,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647f0c906/b75310e4c6f64ecfb37db772273a4819/FLAG3a3e15395 [2021-04-29 00:29:39,951 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:29:39,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2021-04-29 00:29:39,975 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647f0c906/b75310e4c6f64ecfb37db772273a4819/FLAG3a3e15395 [2021-04-29 00:29:40,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647f0c906/b75310e4c6f64ecfb37db772273a4819 [2021-04-29 00:29:40,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:29:40,250 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:29:40,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:29:40,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:29:40,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:29:40,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:40,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530217f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40, skipping insertion in model container [2021-04-29 00:29:40,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:40,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:29:40,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:29:40,470 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-wmm/safe027_pso.oepc.i[950,963] [2021-04-29 00:29:40,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:29:40,710 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:29:40,726 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-wmm/safe027_pso.oepc.i[950,963] [2021-04-29 00:29:40,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:29:40,957 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:29:40,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40 WrapperNode [2021-04-29 00:29:40,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:29:40,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:29:40,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:29:40,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:29:40,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:40,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:29:41,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:29:41,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:29:41,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:29:41,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (1/1) ... [2021-04-29 00:29:41,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:29:41,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:29:41,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:29:41,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:29:41,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (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 [2021-04-29 00:29:41,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:29:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:29:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:29:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:29:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:29:41,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:29:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:29:41,135 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:29:41,135 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:29:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:29:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:29:41,136 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:29:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:29:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:29:41,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:29:41,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:29:41,138 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:29:41,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:29:41,546 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:29:41,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:29:41 BoogieIcfgContainer [2021-04-29 00:29:41,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:29:41,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:29:41,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:29:41,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:29:41,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:29:40" (1/3) ... [2021-04-29 00:29:41,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb8d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:29:41, skipping insertion in model container [2021-04-29 00:29:41,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:29:40" (2/3) ... [2021-04-29 00:29:41,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ccb8d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:29:41, skipping insertion in model container [2021-04-29 00:29:41,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:29:41" (3/3) ... [2021-04-29 00:29:41,562 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2021-04-29 00:29:41,570 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:29:41,575 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:29:41,576 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:29:41,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,651 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,652 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,652 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,652 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,653 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,654 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,655 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,655 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,656 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,656 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,656 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,657 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,658 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,658 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,659 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,659 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,661 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,662 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,662 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,662 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,662 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,663 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,663 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,663 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,664 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,667 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,667 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,668 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,668 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,676 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,676 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,677 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,679 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,680 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,680 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,682 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,682 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,683 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,683 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:29:41,685 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:29:41,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:29:41,742 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:29:41,743 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:29:41,743 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:29:41,744 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:29:41,744 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:29:41,744 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:29:41,745 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:29:41,745 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:29:41,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 87 transitions, 194 flow [2021-04-29 00:29:41,856 INFO L129 PetriNetUnfolder]: 2/83 cut-off events. [2021-04-29 00:29:41,856 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:41,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 83 events. 2/83 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:29:41,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 87 transitions, 194 flow [2021-04-29 00:29:41,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 69 transitions, 150 flow [2021-04-29 00:29:41,887 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:41,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 69 transitions, 150 flow [2021-04-29 00:29:41,914 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 69 transitions, 150 flow [2021-04-29 00:29:41,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 69 transitions, 150 flow [2021-04-29 00:29:41,956 INFO L129 PetriNetUnfolder]: 1/69 cut-off events. [2021-04-29 00:29:41,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:41,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:29:41,963 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:29:47,463 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:29:47,614 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:29:48,126 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:29:48,368 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-29 00:29:49,292 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:29:49,597 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-29 00:29:50,899 INFO L158 LiptonReduction]: Checked pairs total: 8994 [2021-04-29 00:29:50,900 INFO L160 LiptonReduction]: Total number of compositions: 102 [2021-04-29 00:29:50,909 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9024 [2021-04-29 00:29:50,943 INFO L129 PetriNetUnfolder]: 0/72 cut-off events. [2021-04-29 00:29:50,944 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:50,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:50,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:50,953 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:50,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:50,960 INFO L82 PathProgramCache]: Analyzing trace with hash 2132360900, now seen corresponding path program 1 times [2021-04-29 00:29:50,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:50,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454453010] [2021-04-29 00:29:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:51,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:51,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:51,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:51,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454453010] [2021-04-29 00:29:51,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:51,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:29:51,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017025999] [2021-04-29 00:29:51,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:29:51,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:51,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:29:51,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:29:51,316 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:29:51,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 79 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:51,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:29:51,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:51,439 INFO L129 PetriNetUnfolder]: 84/314 cut-off events. [2021-04-29 00:29:51,440 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:51,442 INFO L84 FinitePrefix]: Finished finitePrefix Result has 496 conditions, 314 events. 84/314 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 2118 event pairs, 58 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 445. Up to 149 conditions per place. [2021-04-29 00:29:51,444 INFO L132 encePairwiseOnDemand]: 170/189 looper letters, 5 selfloop transitions, 3 changer transitions 41/86 dead transitions. [2021-04-29 00:29:51,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 250 flow [2021-04-29 00:29:51,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:29:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:29:51,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2021-04-29 00:29:51,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7918871252204586 [2021-04-29 00:29:51,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2021-04-29 00:29:51,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2021-04-29 00:29:51,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:51,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2021-04-29 00:29:51,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,484 INFO L185 Difference]: Start difference. First operand has 92 places, 79 transitions, 170 flow. Second operand 3 states and 449 transitions. [2021-04-29 00:29:51,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 250 flow [2021-04-29 00:29:51,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 86 transitions, 246 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:29:51,491 INFO L241 Difference]: Finished difference. Result has 91 places, 45 transitions, 113 flow [2021-04-29 00:29:51,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=91, PETRI_TRANSITIONS=45} [2021-04-29 00:29:51,494 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -1 predicate places. [2021-04-29 00:29:51,494 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:51,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 45 transitions, 113 flow [2021-04-29 00:29:51,495 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 45 transitions, 113 flow [2021-04-29 00:29:51,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 45 transitions, 113 flow [2021-04-29 00:29:51,503 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-29 00:29:51,503 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:29:51,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 57 events. 3/57 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 212 event pairs, 1 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 72. Up to 10 conditions per place. [2021-04-29 00:29:51,506 INFO L146 LiptonReduction]: Number of co-enabled transitions 1140 [2021-04-29 00:29:51,528 INFO L158 LiptonReduction]: Checked pairs total: 816 [2021-04-29 00:29:51,528 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:51,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 00:29:51,531 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 45 transitions, 113 flow [2021-04-29 00:29:51,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,532 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:51,532 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:51,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:29:51,532 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:51,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:51,533 INFO L82 PathProgramCache]: Analyzing trace with hash 98632856, now seen corresponding path program 1 times [2021-04-29 00:29:51,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:51,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363989371] [2021-04-29 00:29:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:51,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:51,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:51,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:51,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:51,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363989371] [2021-04-29 00:29:51,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:51,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:51,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459153575] [2021-04-29 00:29:51,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:51,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:51,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:51,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:51,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:29:51,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 45 transitions, 113 flow. Second operand has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:51,714 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:29:51,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:51,778 INFO L129 PetriNetUnfolder]: 50/200 cut-off events. [2021-04-29 00:29:51,778 INFO L130 PetriNetUnfolder]: For 35/95 co-relation queries the response was YES. [2021-04-29 00:29:51,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 200 events. 50/200 cut-off events. For 35/95 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1127 event pairs, 4 based on Foata normal form. 6/128 useless extension candidates. Maximal degree in co-relation 334. Up to 53 conditions per place. [2021-04-29 00:29:51,782 INFO L132 encePairwiseOnDemand]: 182/189 looper letters, 10 selfloop transitions, 13 changer transitions 0/59 dead transitions. [2021-04-29 00:29:51,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 59 transitions, 203 flow [2021-04-29 00:29:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:29:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:29:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 663 transitions. [2021-04-29 00:29:51,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7015873015873015 [2021-04-29 00:29:51,787 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 663 transitions. [2021-04-29 00:29:51,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 663 transitions. [2021-04-29 00:29:51,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:51,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 663 transitions. [2021-04-29 00:29:51,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 132.6) internal successors, (663), 5 states have internal predecessors, (663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,795 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,795 INFO L185 Difference]: Start difference. First operand has 55 places, 45 transitions, 113 flow. Second operand 5 states and 663 transitions. [2021-04-29 00:29:51,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 59 transitions, 203 flow [2021-04-29 00:29:51,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 59 transitions, 198 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:29:51,798 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 205 flow [2021-04-29 00:29:51,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=205, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2021-04-29 00:29:51,799 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -31 predicate places. [2021-04-29 00:29:51,799 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:51,799 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 205 flow [2021-04-29 00:29:51,800 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 205 flow [2021-04-29 00:29:51,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 55 transitions, 205 flow [2021-04-29 00:29:51,822 INFO L129 PetriNetUnfolder]: 41/176 cut-off events. [2021-04-29 00:29:51,823 INFO L130 PetriNetUnfolder]: For 84/111 co-relation queries the response was YES. [2021-04-29 00:29:51,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 176 events. 41/176 cut-off events. For 84/111 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1012 event pairs, 11 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 367. Up to 56 conditions per place. [2021-04-29 00:29:51,829 INFO L146 LiptonReduction]: Number of co-enabled transitions 1510 [2021-04-29 00:29:51,842 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-29 00:29:51,842 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:51,842 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-04-29 00:29:51,844 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 205 flow [2021-04-29 00:29:51,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.75) internal successors, (515), 4 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,844 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:51,844 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:51,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:29:51,846 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:51,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:51,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1650737977, now seen corresponding path program 1 times [2021-04-29 00:29:51,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:51,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709357352] [2021-04-29 00:29:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:51,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:51,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:51,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:51,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:51,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709357352] [2021-04-29 00:29:51,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:51,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:51,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133665204] [2021-04-29 00:29:51,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:51,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:51,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:51,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:51,925 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:29:51,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 205 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:51,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:29:51,927 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:51,958 INFO L129 PetriNetUnfolder]: 24/144 cut-off events. [2021-04-29 00:29:51,958 INFO L130 PetriNetUnfolder]: For 104/207 co-relation queries the response was YES. [2021-04-29 00:29:51,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 144 events. 24/144 cut-off events. For 104/207 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 762 event pairs, 5 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 330. Up to 47 conditions per place. [2021-04-29 00:29:51,960 INFO L132 encePairwiseOnDemand]: 186/189 looper letters, 13 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2021-04-29 00:29:51,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 56 transitions, 247 flow [2021-04-29 00:29:51,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:29:51,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:29:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2021-04-29 00:29:51,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2021-04-29 00:29:51,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2021-04-29 00:29:51,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2021-04-29 00:29:51,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:51,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2021-04-29 00:29:51,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,968 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:51,968 INFO L185 Difference]: Start difference. First operand has 61 places, 55 transitions, 205 flow. Second operand 3 states and 423 transitions. [2021-04-29 00:29:51,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 56 transitions, 247 flow [2021-04-29 00:29:51,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 56 transitions, 240 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:29:51,972 INFO L241 Difference]: Finished difference. Result has 63 places, 55 transitions, 215 flow [2021-04-29 00:29:51,972 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2021-04-29 00:29:51,973 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -29 predicate places. [2021-04-29 00:29:51,973 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:51,973 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 55 transitions, 215 flow [2021-04-29 00:29:51,973 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 55 transitions, 215 flow [2021-04-29 00:29:51,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 55 transitions, 215 flow [2021-04-29 00:29:51,992 INFO L129 PetriNetUnfolder]: 30/144 cut-off events. [2021-04-29 00:29:51,992 INFO L130 PetriNetUnfolder]: For 88/105 co-relation queries the response was YES. [2021-04-29 00:29:51,993 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 144 events. 30/144 cut-off events. For 88/105 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 762 event pairs, 7 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 305. Up to 47 conditions per place. [2021-04-29 00:29:51,997 INFO L146 LiptonReduction]: Number of co-enabled transitions 1508 [2021-04-29 00:29:52,011 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-29 00:29:52,011 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:52,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38 [2021-04-29 00:29:52,013 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 215 flow [2021-04-29 00:29:52,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:52,014 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:52,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:29:52,014 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:52,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:52,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1237351640, now seen corresponding path program 1 times [2021-04-29 00:29:52,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:52,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841901505] [2021-04-29 00:29:52,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:52,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:52,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841901505] [2021-04-29 00:29:52,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:52,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:29:52,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570770035] [2021-04-29 00:29:52,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:29:52,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:52,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:29:52,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:29:52,094 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:29:52,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 215 flow. Second operand has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:52,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:29:52,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:52,146 INFO L129 PetriNetUnfolder]: 28/143 cut-off events. [2021-04-29 00:29:52,146 INFO L130 PetriNetUnfolder]: For 205/308 co-relation queries the response was YES. [2021-04-29 00:29:52,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 143 events. 28/143 cut-off events. For 205/308 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 764 event pairs, 3 based on Foata normal form. 7/97 useless extension candidates. Maximal degree in co-relation 353. Up to 43 conditions per place. [2021-04-29 00:29:52,149 INFO L132 encePairwiseOnDemand]: 185/189 looper letters, 8 selfloop transitions, 5 changer transitions 15/61 dead transitions. [2021-04-29 00:29:52,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 61 transitions, 305 flow [2021-04-29 00:29:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:29:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:29:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 528 transitions. [2021-04-29 00:29:52,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2021-04-29 00:29:52,151 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 528 transitions. [2021-04-29 00:29:52,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 528 transitions. [2021-04-29 00:29:52,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:52,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 528 transitions. [2021-04-29 00:29:52,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,157 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,157 INFO L185 Difference]: Start difference. First operand has 63 places, 55 transitions, 215 flow. Second operand 4 states and 528 transitions. [2021-04-29 00:29:52,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 61 transitions, 305 flow [2021-04-29 00:29:52,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 61 transitions, 295 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:29:52,166 INFO L241 Difference]: Finished difference. Result has 66 places, 44 transitions, 170 flow [2021-04-29 00:29:52,166 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=66, PETRI_TRANSITIONS=44} [2021-04-29 00:29:52,166 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -26 predicate places. [2021-04-29 00:29:52,166 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:52,167 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 44 transitions, 170 flow [2021-04-29 00:29:52,168 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 44 transitions, 170 flow [2021-04-29 00:29:52,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 44 transitions, 170 flow [2021-04-29 00:29:52,181 INFO L129 PetriNetUnfolder]: 11/81 cut-off events. [2021-04-29 00:29:52,181 INFO L130 PetriNetUnfolder]: For 67/72 co-relation queries the response was YES. [2021-04-29 00:29:52,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 191 conditions, 81 events. 11/81 cut-off events. For 67/72 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 299 event pairs, 6 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 175. Up to 23 conditions per place. [2021-04-29 00:29:52,184 INFO L146 LiptonReduction]: Number of co-enabled transitions 972 [2021-04-29 00:29:52,194 INFO L158 LiptonReduction]: Checked pairs total: 235 [2021-04-29 00:29:52,194 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:52,194 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 28 [2021-04-29 00:29:52,199 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 170 flow [2021-04-29 00:29:52,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.8) internal successors, (644), 5 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:52,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:52,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:29:52,200 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:52,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:52,201 INFO L82 PathProgramCache]: Analyzing trace with hash 498438446, now seen corresponding path program 1 times [2021-04-29 00:29:52,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:52,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760707490] [2021-04-29 00:29:52,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:52,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:52,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760707490] [2021-04-29 00:29:52,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:52,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:52,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216306783] [2021-04-29 00:29:52,330 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:52,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:52,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:52,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:52,337 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 189 [2021-04-29 00:29:52,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:52,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 189 [2021-04-29 00:29:52,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:52,370 INFO L129 PetriNetUnfolder]: 9/69 cut-off events. [2021-04-29 00:29:52,370 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-04-29 00:29:52,371 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 69 events. 9/69 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 234 event pairs, 6 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 171. Up to 20 conditions per place. [2021-04-29 00:29:52,371 INFO L132 encePairwiseOnDemand]: 186/189 looper letters, 6 selfloop transitions, 4 changer transitions 1/45 dead transitions. [2021-04-29 00:29:52,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 45 transitions, 196 flow [2021-04-29 00:29:52,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:29:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:29:52,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2021-04-29 00:29:52,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2021-04-29 00:29:52,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2021-04-29 00:29:52,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2021-04-29 00:29:52,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:52,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2021-04-29 00:29:52,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,378 INFO L185 Difference]: Start difference. First operand has 63 places, 44 transitions, 170 flow. Second operand 3 states and 423 transitions. [2021-04-29 00:29:52,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 45 transitions, 196 flow [2021-04-29 00:29:52,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 45 transitions, 171 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:29:52,382 INFO L241 Difference]: Finished difference. Result has 60 places, 43 transitions, 157 flow [2021-04-29 00:29:52,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=60, PETRI_TRANSITIONS=43} [2021-04-29 00:29:52,383 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -32 predicate places. [2021-04-29 00:29:52,383 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:52,383 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 43 transitions, 157 flow [2021-04-29 00:29:52,384 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 43 transitions, 157 flow [2021-04-29 00:29:52,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 43 transitions, 157 flow [2021-04-29 00:29:52,395 INFO L129 PetriNetUnfolder]: 8/66 cut-off events. [2021-04-29 00:29:52,395 INFO L130 PetriNetUnfolder]: For 38/43 co-relation queries the response was YES. [2021-04-29 00:29:52,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 66 events. 8/66 cut-off events. For 38/43 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 224 event pairs, 5 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 136. Up to 18 conditions per place. [2021-04-29 00:29:52,398 INFO L146 LiptonReduction]: Number of co-enabled transitions 916 [2021-04-29 00:29:52,413 INFO L158 LiptonReduction]: Checked pairs total: 228 [2021-04-29 00:29:52,414 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:52,414 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-04-29 00:29:52,417 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 43 transitions, 157 flow [2021-04-29 00:29:52,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 138.75) internal successors, (555), 4 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,418 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:52,418 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:52,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:29:52,419 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:52,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:52,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1515277411, now seen corresponding path program 1 times [2021-04-29 00:29:52,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:52,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097621790] [2021-04-29 00:29:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:52,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:29:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:52,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097621790] [2021-04-29 00:29:52,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:52,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:29:52,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845148719] [2021-04-29 00:29:52,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:29:52,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:52,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:29:52,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:29:52,513 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 189 [2021-04-29 00:29:52,514 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 43 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,514 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:52,514 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 189 [2021-04-29 00:29:52,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:52,558 INFO L129 PetriNetUnfolder]: 23/142 cut-off events. [2021-04-29 00:29:52,558 INFO L130 PetriNetUnfolder]: For 193/194 co-relation queries the response was YES. [2021-04-29 00:29:52,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 142 events. 23/142 cut-off events. For 193/194 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 734 event pairs, 8 based on Foata normal form. 8/91 useless extension candidates. Maximal degree in co-relation 319. Up to 34 conditions per place. [2021-04-29 00:29:52,560 INFO L132 encePairwiseOnDemand]: 185/189 looper letters, 8 selfloop transitions, 5 changer transitions 8/53 dead transitions. [2021-04-29 00:29:52,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 53 transitions, 268 flow [2021-04-29 00:29:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:29:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:29:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2021-04-29 00:29:52,563 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6931216931216931 [2021-04-29 00:29:52,563 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2021-04-29 00:29:52,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2021-04-29 00:29:52,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:52,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2021-04-29 00:29:52,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,568 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 189.0) internal successors, (945), 5 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,568 INFO L185 Difference]: Start difference. First operand has 59 places, 43 transitions, 157 flow. Second operand 4 states and 524 transitions. [2021-04-29 00:29:52,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 53 transitions, 268 flow [2021-04-29 00:29:52,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:29:52,571 INFO L241 Difference]: Finished difference. Result has 62 places, 42 transitions, 167 flow [2021-04-29 00:29:52,571 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=62, PETRI_TRANSITIONS=42} [2021-04-29 00:29:52,571 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -30 predicate places. [2021-04-29 00:29:52,571 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:52,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 42 transitions, 167 flow [2021-04-29 00:29:52,572 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 42 transitions, 167 flow [2021-04-29 00:29:52,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 42 transitions, 167 flow [2021-04-29 00:29:52,581 INFO L129 PetriNetUnfolder]: 8/72 cut-off events. [2021-04-29 00:29:52,581 INFO L130 PetriNetUnfolder]: For 72/73 co-relation queries the response was YES. [2021-04-29 00:29:52,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173 conditions, 72 events. 8/72 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 273 event pairs, 5 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 158. Up to 19 conditions per place. [2021-04-29 00:29:52,583 INFO L146 LiptonReduction]: Number of co-enabled transitions 828 [2021-04-29 00:29:52,589 INFO L158 LiptonReduction]: Checked pairs total: 23 [2021-04-29 00:29:52,589 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:52,589 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 00:29:52,591 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 42 transitions, 167 flow [2021-04-29 00:29:52,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,591 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:52,591 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:52,591 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:29:52,592 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:52,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:52,592 INFO L82 PathProgramCache]: Analyzing trace with hash -2049059060, now seen corresponding path program 1 times [2021-04-29 00:29:52,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:52,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200882099] [2021-04-29 00:29:52,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:52,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:29:52,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:52,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:29:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:52,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200882099] [2021-04-29 00:29:52,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:52,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:29:52,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335536434] [2021-04-29 00:29:52,671 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:29:52,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:52,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:29:52,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:29:52,673 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:29:52,674 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:52,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:52,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:29:52,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:29:55,461 INFO L129 PetriNetUnfolder]: 13870/19739 cut-off events. [2021-04-29 00:29:55,461 INFO L130 PetriNetUnfolder]: For 23584/28469 co-relation queries the response was YES. [2021-04-29 00:29:55,547 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42401 conditions, 19739 events. 13870/19739 cut-off events. For 23584/28469 co-relation queries the response was YES. Maximal size of possible extension queue 2541. Compared 144816 event pairs, 7402 based on Foata normal form. 315/6012 useless extension candidates. Maximal degree in co-relation 42384. Up to 12052 conditions per place. [2021-04-29 00:29:55,630 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 33 selfloop transitions, 32 changer transitions 0/85 dead transitions. [2021-04-29 00:29:55,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 383 flow [2021-04-29 00:29:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:29:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:29:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 681 transitions. [2021-04-29 00:29:55,634 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2021-04-29 00:29:55,634 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 681 transitions. [2021-04-29 00:29:55,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 681 transitions. [2021-04-29 00:29:55,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:29:55,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 681 transitions. [2021-04-29 00:29:55,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:55,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:55,640 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:55,640 INFO L185 Difference]: Start difference. First operand has 61 places, 42 transitions, 167 flow. Second operand 5 states and 681 transitions. [2021-04-29 00:29:55,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 383 flow [2021-04-29 00:29:55,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 85 transitions, 367 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:29:55,659 INFO L241 Difference]: Finished difference. Result has 64 places, 72 transitions, 389 flow [2021-04-29 00:29:55,659 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=389, PETRI_PLACES=64, PETRI_TRANSITIONS=72} [2021-04-29 00:29:55,659 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -28 predicate places. [2021-04-29 00:29:55,660 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:29:55,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 72 transitions, 389 flow [2021-04-29 00:29:55,660 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 72 transitions, 389 flow [2021-04-29 00:29:55,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 72 transitions, 389 flow [2021-04-29 00:29:57,809 INFO L129 PetriNetUnfolder]: 12762/18269 cut-off events. [2021-04-29 00:29:57,809 INFO L130 PetriNetUnfolder]: For 12628/53448 co-relation queries the response was YES. [2021-04-29 00:29:57,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54249 conditions, 18269 events. 12762/18269 cut-off events. For 12628/53448 co-relation queries the response was YES. Maximal size of possible extension queue 2375. Compared 135315 event pairs, 7003 based on Foata normal form. 5/5614 useless extension candidates. Maximal degree in co-relation 54233. Up to 16222 conditions per place. [2021-04-29 00:29:58,032 INFO L146 LiptonReduction]: Number of co-enabled transitions 1044 [2021-04-29 00:29:58,065 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:29:58,065 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:29:58,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2406 [2021-04-29 00:29:58,067 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 72 transitions, 389 flow [2021-04-29 00:29:58,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:58,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:29:58,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:29:58,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:29:58,068 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:29:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:29:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash -212838586, now seen corresponding path program 1 times [2021-04-29 00:29:58,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:29:58,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024235710] [2021-04-29 00:29:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:29:58,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:29:58,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:58,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:58,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:58,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:29:58,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:29:58,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:29:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:29:58,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024235710] [2021-04-29 00:29:58,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:29:58,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:29:58,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219568636] [2021-04-29 00:29:58,124 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:29:58,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:29:58,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:29:58,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:29:58,126 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:29:58,128 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 72 transitions, 389 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:29:58,128 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:29:58,128 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:29:58,128 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:30:01,078 INFO L129 PetriNetUnfolder]: 15748/23270 cut-off events. [2021-04-29 00:30:01,079 INFO L130 PetriNetUnfolder]: For 24044/141730 co-relation queries the response was YES. [2021-04-29 00:30:01,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91488 conditions, 23270 events. 15748/23270 cut-off events. For 24044/141730 co-relation queries the response was YES. Maximal size of possible extension queue 3336. Compared 181142 event pairs, 3448 based on Foata normal form. 364/7998 useless extension candidates. Maximal degree in co-relation 91470. Up to 20899 conditions per place. [2021-04-29 00:30:01,397 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 46 selfloop transitions, 74 changer transitions 0/140 dead transitions. [2021-04-29 00:30:01,398 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 140 transitions, 1018 flow [2021-04-29 00:30:01,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:30:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:30:01,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 957 transitions. [2021-04-29 00:30:01,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7233560090702947 [2021-04-29 00:30:01,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 957 transitions. [2021-04-29 00:30:01,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 957 transitions. [2021-04-29 00:30:01,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:30:01,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 957 transitions. [2021-04-29 00:30:01,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 136.71428571428572) internal successors, (957), 7 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:01,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:01,409 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 189.0) internal successors, (1512), 8 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:01,410 INFO L185 Difference]: Start difference. First operand has 64 places, 72 transitions, 389 flow. Second operand 7 states and 957 transitions. [2021-04-29 00:30:01,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 140 transitions, 1018 flow [2021-04-29 00:30:01,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 140 transitions, 1018 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:30:01,579 INFO L241 Difference]: Finished difference. Result has 73 places, 126 transitions, 1035 flow [2021-04-29 00:30:01,580 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1035, PETRI_PLACES=73, PETRI_TRANSITIONS=126} [2021-04-29 00:30:01,580 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2021-04-29 00:30:01,580 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:30:01,580 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 126 transitions, 1035 flow [2021-04-29 00:30:01,580 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 126 transitions, 1035 flow [2021-04-29 00:30:01,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 126 transitions, 1035 flow [2021-04-29 00:30:03,534 INFO L129 PetriNetUnfolder]: 14711/21871 cut-off events. [2021-04-29 00:30:03,534 INFO L130 PetriNetUnfolder]: For 50947/320477 co-relation queries the response was YES. [2021-04-29 00:30:03,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105008 conditions, 21871 events. 14711/21871 cut-off events. For 50947/320477 co-relation queries the response was YES. Maximal size of possible extension queue 3267. Compared 178109 event pairs, 3330 based on Foata normal form. 6/6770 useless extension candidates. Maximal degree in co-relation 104987. Up to 19876 conditions per place. [2021-04-29 00:30:03,872 INFO L146 LiptonReduction]: Number of co-enabled transitions 1676 [2021-04-29 00:30:04,104 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:30:04,104 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:30:04,104 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2524 [2021-04-29 00:30:04,105 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 1035 flow [2021-04-29 00:30:04,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:04,106 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:30:04,106 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:30:04,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:30:04,107 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:30:04,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:30:04,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2018633845, now seen corresponding path program 1 times [2021-04-29 00:30:04,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:30:04,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696359701] [2021-04-29 00:30:04,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:30:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:30:04,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:04,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:04,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:04,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:04,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:04,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:04,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:04,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:30:04,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:30:04,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696359701] [2021-04-29 00:30:04,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:30:04,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:30:04,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863783046] [2021-04-29 00:30:04,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:30:04,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:30:04,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:30:04,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:30:04,181 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:30:04,182 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 1035 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:04,182 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:30:04,183 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:30:04,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:30:06,676 INFO L129 PetriNetUnfolder]: 15190/23711 cut-off events. [2021-04-29 00:30:06,677 INFO L130 PetriNetUnfolder]: For 43250/411328 co-relation queries the response was YES. [2021-04-29 00:30:06,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136100 conditions, 23711 events. 15190/23711 cut-off events. For 43250/411328 co-relation queries the response was YES. Maximal size of possible extension queue 3969. Compared 201222 event pairs, 622 based on Foata normal form. 423/8164 useless extension candidates. Maximal degree in co-relation 136077. Up to 21529 conditions per place. [2021-04-29 00:30:06,832 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 23 selfloop transitions, 116 changer transitions 24/183 dead transitions. [2021-04-29 00:30:06,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 183 transitions, 1861 flow [2021-04-29 00:30:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:30:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:30:06,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1233 transitions. [2021-04-29 00:30:06,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7248677248677249 [2021-04-29 00:30:06,838 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1233 transitions. [2021-04-29 00:30:06,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1233 transitions. [2021-04-29 00:30:06,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:30:06,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1233 transitions. [2021-04-29 00:30:06,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.0) internal successors, (1233), 9 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:06,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:06,847 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 189.0) internal successors, (1890), 10 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:06,848 INFO L185 Difference]: Start difference. First operand has 73 places, 126 transitions, 1035 flow. Second operand 9 states and 1233 transitions. [2021-04-29 00:30:06,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 183 transitions, 1861 flow [2021-04-29 00:30:07,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 183 transitions, 1744 flow, removed 41 selfloop flow, removed 2 redundant places. [2021-04-29 00:30:07,545 INFO L241 Difference]: Finished difference. Result has 82 places, 156 transitions, 1577 flow [2021-04-29 00:30:07,545 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1577, PETRI_PLACES=82, PETRI_TRANSITIONS=156} [2021-04-29 00:30:07,546 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -10 predicate places. [2021-04-29 00:30:07,546 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:30:07,546 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 156 transitions, 1577 flow [2021-04-29 00:30:07,546 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 156 transitions, 1577 flow [2021-04-29 00:30:07,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 156 transitions, 1577 flow [2021-04-29 00:30:09,265 INFO L129 PetriNetUnfolder]: 9949/16812 cut-off events. [2021-04-29 00:30:09,265 INFO L130 PetriNetUnfolder]: For 94189/342264 co-relation queries the response was YES. [2021-04-29 00:30:09,333 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103385 conditions, 16812 events. 9949/16812 cut-off events. For 94189/342264 co-relation queries the response was YES. Maximal size of possible extension queue 2904. Compared 162451 event pairs, 622 based on Foata normal form. 5/5062 useless extension candidates. Maximal degree in co-relation 103361. Up to 14086 conditions per place. [2021-04-29 00:30:09,488 INFO L146 LiptonReduction]: Number of co-enabled transitions 1890 [2021-04-29 00:30:09,560 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:30:09,561 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:30:09,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2015 [2021-04-29 00:30:09,562 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 156 transitions, 1577 flow [2021-04-29 00:30:09,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:09,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:30:09,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:30:09,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:30:09,563 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:30:09,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:30:09,563 INFO L82 PathProgramCache]: Analyzing trace with hash 424285408, now seen corresponding path program 1 times [2021-04-29 00:30:09,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:30:09,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142606391] [2021-04-29 00:30:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:30:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:30:09,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:09,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:09,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:09,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:09,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:09,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:09,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:09,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:30:09,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:09,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:30:09,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:30:09,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142606391] [2021-04-29 00:30:09,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:30:09,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:30:09,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093802594] [2021-04-29 00:30:09,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:30:09,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:30:09,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:30:09,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:30:09,632 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 189 [2021-04-29 00:30:09,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 156 transitions, 1577 flow. Second operand has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:09,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:30:09,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 189 [2021-04-29 00:30:09,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:30:12,026 INFO L129 PetriNetUnfolder]: 9871/17177 cut-off events. [2021-04-29 00:30:12,027 INFO L130 PetriNetUnfolder]: For 59119/316392 co-relation queries the response was YES. [2021-04-29 00:30:12,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120479 conditions, 17177 events. 9871/17177 cut-off events. For 59119/316392 co-relation queries the response was YES. Maximal size of possible extension queue 3051. Compared 165338 event pairs, 1 based on Foata normal form. 348/5848 useless extension candidates. Maximal degree in co-relation 120453. Up to 14086 conditions per place. [2021-04-29 00:30:12,354 INFO L132 encePairwiseOnDemand]: 169/189 looper letters, 6 selfloop transitions, 133 changer transitions 19/178 dead transitions. [2021-04-29 00:30:12,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 178 transitions, 2095 flow [2021-04-29 00:30:12,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:30:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:30:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1485 transitions. [2021-04-29 00:30:12,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2021-04-29 00:30:12,366 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1485 transitions. [2021-04-29 00:30:12,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1485 transitions. [2021-04-29 00:30:12,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:30:12,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1485 transitions. [2021-04-29 00:30:12,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 135.0) internal successors, (1485), 11 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:12,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 189.0) internal successors, (2268), 12 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:12,384 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 189.0) internal successors, (2268), 12 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:12,384 INFO L185 Difference]: Start difference. First operand has 82 places, 156 transitions, 1577 flow. Second operand 11 states and 1485 transitions. [2021-04-29 00:30:12,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 178 transitions, 2095 flow [2021-04-29 00:30:17,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 178 transitions, 1782 flow, removed 94 selfloop flow, removed 5 redundant places. [2021-04-29 00:30:17,222 INFO L241 Difference]: Finished difference. Result has 90 places, 156 transitions, 1597 flow [2021-04-29 00:30:17,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1597, PETRI_PLACES=90, PETRI_TRANSITIONS=156} [2021-04-29 00:30:17,223 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -2 predicate places. [2021-04-29 00:30:17,223 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:30:17,223 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 156 transitions, 1597 flow [2021-04-29 00:30:17,223 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 156 transitions, 1597 flow [2021-04-29 00:30:17,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 156 transitions, 1597 flow [2021-04-29 00:30:18,344 INFO L129 PetriNetUnfolder]: 7627/13680 cut-off events. [2021-04-29 00:30:18,345 INFO L130 PetriNetUnfolder]: For 84961/213838 co-relation queries the response was YES. [2021-04-29 00:30:18,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73373 conditions, 13680 events. 7627/13680 cut-off events. For 84961/213838 co-relation queries the response was YES. Maximal size of possible extension queue 2908. Compared 141640 event pairs, 1 based on Foata normal form. 5/4042 useless extension candidates. Maximal degree in co-relation 73346. Up to 11170 conditions per place. [2021-04-29 00:30:18,693 INFO L146 LiptonReduction]: Number of co-enabled transitions 1880 [2021-04-29 00:30:18,729 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:30:18,729 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:30:18,729 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1506 [2021-04-29 00:30:18,730 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 156 transitions, 1597 flow [2021-04-29 00:30:18,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:18,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:30:18,731 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:30:18,731 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:30:18,731 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:30:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:30:18,732 INFO L82 PathProgramCache]: Analyzing trace with hash -67449975, now seen corresponding path program 1 times [2021-04-29 00:30:18,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:30:18,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297593405] [2021-04-29 00:30:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:30:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:30:18,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:18,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:30:18,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:18,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:30:18,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:18,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:30:18,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:18,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:30:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:30:18,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297593405] [2021-04-29 00:30:18,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:30:18,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:30:18,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485020840] [2021-04-29 00:30:18,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:30:18,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:30:18,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:30:18,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:30:18,794 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 189 [2021-04-29 00:30:18,795 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 156 transitions, 1597 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:18,795 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:30:18,795 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 189 [2021-04-29 00:30:18,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:30:21,399 INFO L129 PetriNetUnfolder]: 13875/24652 cut-off events. [2021-04-29 00:30:21,399 INFO L130 PetriNetUnfolder]: For 98458/172923 co-relation queries the response was YES. [2021-04-29 00:30:21,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131878 conditions, 24652 events. 13875/24652 cut-off events. For 98458/172923 co-relation queries the response was YES. Maximal size of possible extension queue 6027. Compared 260129 event pairs, 1 based on Foata normal form. 90/7560 useless extension candidates. Maximal degree in co-relation 131849. Up to 20179 conditions per place. [2021-04-29 00:30:21,520 INFO L132 encePairwiseOnDemand]: 183/189 looper letters, 4 selfloop transitions, 3 changer transitions 94/161 dead transitions. [2021-04-29 00:30:21,520 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 161 transitions, 1659 flow [2021-04-29 00:30:21,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:30:21,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:30:21,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2021-04-29 00:30:21,524 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6851851851851852 [2021-04-29 00:30:21,524 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2021-04-29 00:30:21,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2021-04-29 00:30:21,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:30:21,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2021-04-29 00:30:21,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:21,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:21,530 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 189.0) internal successors, (1323), 7 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:21,531 INFO L185 Difference]: Start difference. First operand has 88 places, 156 transitions, 1597 flow. Second operand 6 states and 777 transitions. [2021-04-29 00:30:21,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 161 transitions, 1659 flow [2021-04-29 00:30:53,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 161 transitions, 1260 flow, removed 77 selfloop flow, removed 10 redundant places. [2021-04-29 00:30:53,446 INFO L241 Difference]: Finished difference. Result has 85 places, 67 transitions, 385 flow [2021-04-29 00:30:53,446 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=85, PETRI_TRANSITIONS=67} [2021-04-29 00:30:53,446 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -7 predicate places. [2021-04-29 00:30:53,446 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:30:53,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 67 transitions, 385 flow [2021-04-29 00:30:53,447 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 67 transitions, 385 flow [2021-04-29 00:30:53,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 385 flow [2021-04-29 00:30:53,541 INFO L129 PetriNetUnfolder]: 594/1091 cut-off events. [2021-04-29 00:30:53,542 INFO L130 PetriNetUnfolder]: For 6044/6080 co-relation queries the response was YES. [2021-04-29 00:30:53,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3937 conditions, 1091 events. 594/1091 cut-off events. For 6044/6080 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 7120 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 3911. Up to 487 conditions per place. [2021-04-29 00:30:53,556 INFO L146 LiptonReduction]: Number of co-enabled transitions 468 [2021-04-29 00:30:53,565 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:30:53,565 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:30:53,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-04-29 00:30:53,566 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 385 flow [2021-04-29 00:30:53,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,566 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:30:53,567 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:30:53,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:30:53,567 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:30:53,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:30:53,567 INFO L82 PathProgramCache]: Analyzing trace with hash 368222622, now seen corresponding path program 1 times [2021-04-29 00:30:53,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:30:53,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110683182] [2021-04-29 00:30:53,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:30:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:30:53,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:53,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:30:53,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:53,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:30:53,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:30:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:30:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:30:53,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110683182] [2021-04-29 00:30:53,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:30:53,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:30:53,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857665851] [2021-04-29 00:30:53,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:30:53,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:30:53,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:30:53,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:30:53,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 189 [2021-04-29 00:30:53,628 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,628 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:30:53,628 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 189 [2021-04-29 00:30:53,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:30:53,729 INFO L129 PetriNetUnfolder]: 594/1010 cut-off events. [2021-04-29 00:30:53,729 INFO L130 PetriNetUnfolder]: For 7026/7062 co-relation queries the response was YES. [2021-04-29 00:30:53,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2893 conditions, 1010 events. 594/1010 cut-off events. For 7026/7062 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 5404 event pairs, 0 based on Foata normal form. 81/430 useless extension candidates. Maximal degree in co-relation 2873. Up to 487 conditions per place. [2021-04-29 00:30:53,734 INFO L132 encePairwiseOnDemand]: 184/189 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2021-04-29 00:30:53,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 371 flow [2021-04-29 00:30:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:30:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:30:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 647 transitions. [2021-04-29 00:30:53,737 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6846560846560846 [2021-04-29 00:30:53,737 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 647 transitions. [2021-04-29 00:30:53,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 647 transitions. [2021-04-29 00:30:53,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:30:53,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 647 transitions. [2021-04-29 00:30:53,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 129.4) internal successors, (647), 5 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,743 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 189.0) internal successors, (1134), 6 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,743 INFO L185 Difference]: Start difference. First operand has 68 places, 67 transitions, 385 flow. Second operand 5 states and 647 transitions. [2021-04-29 00:30:53,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 371 flow [2021-04-29 00:30:53,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 66 transitions, 345 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-04-29 00:30:53,756 INFO L241 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2021-04-29 00:30:53,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2021-04-29 00:30:53,757 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -29 predicate places. [2021-04-29 00:30:53,757 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:30:53,757 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 0 transitions, 0 flow [2021-04-29 00:30:53,757 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 0 transitions, 0 flow [2021-04-29 00:30:53,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:30:53,758 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:30:53,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:30:53,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:30:53,758 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:30:53,758 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:30:53,759 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:30:53,759 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:30:53,760 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:30:53,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 129.75) internal successors, (519), 4 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:30:53,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:30:53,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:30:53 BasicIcfg [2021-04-29 00:30:53,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:30:53,765 INFO L168 Benchmark]: Toolchain (without parser) took 73558.03 ms. Allocated memory was 312.5 MB in the beginning and 12.0 GB in the end (delta: 11.6 GB). Free memory was 286.5 MB in the beginning and 10.3 GB in the end (delta: -10.0 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,766 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 312.5 MB. Free memory is still 283.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:30:53,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.35 ms. Allocated memory is still 312.5 MB. Free memory was 283.4 MB in the beginning and 283.7 MB in the end (delta: -364.4 kB). Peak memory consumption was 25.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.79 ms. Allocated memory is still 312.5 MB. Free memory was 283.7 MB in the beginning and 281.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,767 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 312.5 MB. Free memory was 281.9 MB in the beginning and 279.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,767 INFO L168 Benchmark]: RCFGBuilder took 511.08 ms. Allocated memory is still 312.5 MB. Free memory was 279.8 MB in the beginning and 254.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,768 INFO L168 Benchmark]: TraceAbstraction took 72211.52 ms. Allocated memory was 312.5 MB in the beginning and 12.0 GB in the end (delta: 11.6 GB). Free memory was 254.6 MB in the beginning and 10.3 GB in the end (delta: -10.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. [2021-04-29 00:30:53,770 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 312.5 MB. Free memory is still 283.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 707.35 ms. Allocated memory is still 312.5 MB. Free memory was 283.4 MB in the beginning and 283.7 MB in the end (delta: -364.4 kB). Peak memory consumption was 25.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.79 ms. Allocated memory is still 312.5 MB. Free memory was 283.7 MB in the beginning and 281.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 312.5 MB. Free memory was 281.9 MB in the beginning and 279.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 511.08 ms. Allocated memory is still 312.5 MB. Free memory was 279.8 MB in the beginning and 254.6 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 72211.52 ms. Allocated memory was 312.5 MB in the beginning and 12.0 GB in the end (delta: 11.6 GB). Free memory was 254.6 MB in the beginning and 10.3 GB in the end (delta: -10.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8986.3ms, 81 PlacesBefore, 92 PlacesAfterwards, 69 TransitionsBefore, 79 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 8994 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2965, positive: 2738, positive conditional: 2738, positive unconditional: 0, negative: 227, negative conditional: 227, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1348, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1348, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1348, positive: 1217, positive conditional: 0, positive unconditional: 1217, negative: 131, negative conditional: 0, negative unconditional: 131, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 131, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 533, positive: 238, positive conditional: 0, positive unconditional: 238, negative: 295, negative conditional: 0, negative unconditional: 295, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2965, positive: 1458, positive conditional: 1458, positive unconditional: 0, negative: 159, negative conditional: 159, negative unconditional: 0, unknown: 1348, unknown conditional: 1348, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1342, Positive cache size: 1274, Positive conditional cache size: 1274, Positive unconditional cache size: 0, Negative cache size: 68, Negative conditional cache size: 68, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.7ms, 91 PlacesBefore, 55 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1140 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 816 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 188, positive: 163, positive conditional: 163, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 8, positive unconditional: 22, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 8, positive unconditional: 22, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 34, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 5, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 188, positive: 133, positive conditional: 133, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 34, unknown conditional: 34, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1376, Positive cache size: 1304, Positive conditional cache size: 1304, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.1ms, 61 PlacesBefore, 61 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1510 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1377, Positive cache size: 1304, Positive conditional cache size: 1304, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.7ms, 63 PlacesBefore, 63 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1508 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 310 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 47, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 47, positive: 31, positive conditional: 31, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1387, Positive cache size: 1313, Positive conditional cache size: 1313, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.6ms, 66 PlacesBefore, 63 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 972 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 235 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1390, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.3ms, 60 PlacesBefore, 59 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 916 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 228 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 8, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1ms, 62 PlacesBefore, 61 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 828 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2405.5ms, 64 PlacesBefore, 64 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2523.5ms, 73 PlacesBefore, 73 PlacesAfterwards, 126 TransitionsBefore, 126 TransitionsAfterwards, 1676 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2014.3ms, 82 PlacesBefore, 82 PlacesAfterwards, 156 TransitionsBefore, 156 TransitionsAfterwards, 1890 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1505.7ms, 90 PlacesBefore, 88 PlacesAfterwards, 156 TransitionsBefore, 156 TransitionsAfterwards, 1880 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.0ms, 85 PlacesBefore, 68 PlacesAfterwards, 67 TransitionsBefore, 67 TransitionsAfterwards, 468 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 63 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1391, Positive cache size: 1315, Positive conditional cache size: 1315, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 20.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 72025.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 52697.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9177.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 98 SDtfs, 159 SDslu, 48 SDs, 0 SdLazy, 661 SolverSat, 268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 674.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 255.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1597occurred in iteration=10, InterpolantAutomatonStates: 65, 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: 39.9ms SsaConstructionTime, 295.4ms SatisfiabilityAnalysisTime, 743.6ms InterpolantComputationTime, 172 NumberOfCodeBlocks, 172 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 1064 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...