/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/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:43:24,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:43:24,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:43:24,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:43:24,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:43:24,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:43:24,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:43:24,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:43:24,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:43:24,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:43:24,266 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:43:24,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:43:24,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:43:24,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:43:24,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:43:24,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:43:24,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:43:24,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:43:24,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:43:24,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:43:24,299 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 [2021-03-26 00:43:24,335 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:43:24,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:43:24,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:43:24,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:43:24,339 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:43:24,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:43:24,339 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:43:24,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:43:24,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:43:24,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:43:24,341 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:43:24,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:43:24,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:43:24,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:43:24,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:43:24,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:43:24,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:43:24,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:43:24,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:43:24,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:43:24,344 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:43:24,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:43:24,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:43:24,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:43:24,650 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:43:24,650 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:43:24,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-26 00:43:24,716 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa0810a6/464f8083b2a34b6a8a3716f7af038b3f/FLAG83a468225 [2021-03-26 00:43:25,326 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:43:25,326 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2021-03-26 00:43:25,341 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa0810a6/464f8083b2a34b6a8a3716f7af038b3f/FLAG83a468225 [2021-03-26 00:43:25,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5aa0810a6/464f8083b2a34b6a8a3716f7af038b3f [2021-03-26 00:43:25,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:43:25,716 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:43:25,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:43:25,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:43:25,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:43:25,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:25" (1/1) ... [2021-03-26 00:43:25,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7ea82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:25, skipping insertion in model container [2021-03-26 00:43:25,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:43:25" (1/1) ... [2021-03-26 00:43:25,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:43:25,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:43:25,888 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/safe019_tso.oepc.i[950,963] [2021-03-26 00:43:26,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:43:26,112 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:43:26,124 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/safe019_tso.oepc.i[950,963] [2021-03-26 00:43:26,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:43:26,243 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:43:26,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26 WrapperNode [2021-03-26 00:43:26,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:43:26,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:43:26,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:43:26,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:43:26,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:43:26,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:43:26,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:43:26,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:43:26,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... [2021-03-26 00:43:26,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:43:26,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:43:26,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:43:26,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:43:26,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:43:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:43:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:43:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:43:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:43:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:43:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:43:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:43:26,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:43:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:43:26,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:43:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-26 00:43:26,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-26 00:43:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:43:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:43:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:43:26,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:43:26,442 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 00:43:26,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:43:26,780 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:43:26,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:43:26 BoogieIcfgContainer [2021-03-26 00:43:26,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:43:26,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:43:26,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:43:26,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:43:26,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:43:25" (1/3) ... [2021-03-26 00:43:26,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6dc4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:43:26, skipping insertion in model container [2021-03-26 00:43:26,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:43:26" (2/3) ... [2021-03-26 00:43:26,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6dc4c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:43:26, skipping insertion in model container [2021-03-26 00:43:26,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:43:26" (3/3) ... [2021-03-26 00:43:26,788 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2021-03-26 00:43:26,792 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:43:26,796 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:43:26,796 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:43:26,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,823 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,826 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,827 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,828 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,830 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,831 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,831 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,835 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,835 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,835 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,837 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,838 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,838 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,839 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,840 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,840 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:43:26,841 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:43:26,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 00:43:26,885 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:43:26,885 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:43:26,885 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:43:26,885 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:43:26,886 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:43:26,886 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:43:26,886 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:43:26,886 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:43:26,896 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 00:43:26,940 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-03-26 00:43:26,941 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:26,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-26 00:43:26,947 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-03-26 00:43:26,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:26,957 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:26,973 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:26,979 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:26,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-03-26 00:43:27,021 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-03-26 00:43:27,021 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:27,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-26 00:43:27,025 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-26 00:43:28,654 INFO L154 LiptonReduction]: Checked pairs total: 1269 [2021-03-26 00:43:28,654 INFO L156 LiptonReduction]: Total number of compositions: 43 [2021-03-26 00:43:28,656 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1700 [2021-03-26 00:43:28,667 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-03-26 00:43:28,667 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:28,667 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:28,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:28,668 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:28,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:28,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2002329809, now seen corresponding path program 1 times [2021-03-26 00:43:28,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:28,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363453050] [2021-03-26 00:43:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:28,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:28,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:28,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:28,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:28,980 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:28,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:28,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:28,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363453050] [2021-03-26 00:43:28,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:28,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:28,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798679625] [2021-03-26 00:43:29,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:29,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:29,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:29,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:29,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 129 [2021-03-26 00:43:29,032 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:29,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 129 [2021-03-26 00:43:29,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:29,099 INFO L129 PetriNetUnfolder]: 36/115 cut-off events. [2021-03-26 00:43:29,099 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:29,101 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 115 events. 36/115 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 460 event pairs, 24 based on Foata normal form. 5/109 useless extension candidates. Maximal degree in co-relation 188. Up to 59 conditions per place. [2021-03-26 00:43:29,103 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 9 selfloop transitions, 5 changer transitions 0/30 dead transitions. [2021-03-26 00:43:29,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 30 transitions, 100 flow [2021-03-26 00:43:29,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:29,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-03-26 00:43:29,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8372093023255814 [2021-03-26 00:43:29,118 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-03-26 00:43:29,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-03-26 00:43:29,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:29,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-03-26 00:43:29,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,134 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,136 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 62 flow. Second operand 4 states and 432 transitions. [2021-03-26 00:43:29,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 30 transitions, 100 flow [2021-03-26 00:43:29,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 00:43:29,141 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 94 flow [2021-03-26 00:43:29,143 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-03-26 00:43:29,144 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 00:43:29,144 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:29,145 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-26 00:43:29,145 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 94 flow [2021-03-26 00:43:29,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 94 flow [2021-03-26 00:43:29,155 INFO L129 PetriNetUnfolder]: 19/82 cut-off events. [2021-03-26 00:43:29,155 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-26 00:43:29,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 82 events. 19/82 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 319 event pairs, 10 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 153. Up to 34 conditions per place. [2021-03-26 00:43:29,157 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 00:43:29,687 INFO L154 LiptonReduction]: Checked pairs total: 278 [2021-03-26 00:43:29,687 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 00:43:29,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 544 [2021-03-26 00:43:29,689 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 86 flow [2021-03-26 00:43:29,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,690 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:29,690 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:29,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:43:29,690 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:29,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:29,691 INFO L82 PathProgramCache]: Analyzing trace with hash 233500185, now seen corresponding path program 1 times [2021-03-26 00:43:29,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:29,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495304460] [2021-03-26 00:43:29,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:29,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:29,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:29,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:29,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:29,762 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:29,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:29,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:29,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495304460] [2021-03-26 00:43:29,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:29,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:29,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154268879] [2021-03-26 00:43:29,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:29,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:29,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:29,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:29,780 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 133 [2021-03-26 00:43:29,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:29,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 133 [2021-03-26 00:43:29,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:29,834 INFO L129 PetriNetUnfolder]: 28/99 cut-off events. [2021-03-26 00:43:29,834 INFO L130 PetriNetUnfolder]: For 61/101 co-relation queries the response was YES. [2021-03-26 00:43:29,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 99 events. 28/99 cut-off events. For 61/101 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 387 event pairs, 7 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 251. Up to 46 conditions per place. [2021-03-26 00:43:29,839 INFO L132 encePairwiseOnDemand]: 125/133 looper letters, 7 selfloop transitions, 9 changer transitions 0/29 dead transitions. [2021-03-26 00:43:29,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 29 transitions, 142 flow [2021-03-26 00:43:29,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:29,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 435 transitions. [2021-03-26 00:43:29,844 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8176691729323309 [2021-03-26 00:43:29,844 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 435 transitions. [2021-03-26 00:43:29,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 435 transitions. [2021-03-26 00:43:29,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:29,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 435 transitions. [2021-03-26 00:43:29,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 133.0) internal successors, (665), 5 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:29,852 INFO L185 Difference]: Start difference. First operand has 36 places, 24 transitions, 86 flow. Second operand 4 states and 435 transitions. [2021-03-26 00:43:29,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 29 transitions, 142 flow [2021-03-26 00:43:29,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:29,855 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 127 flow [2021-03-26 00:43:29,856 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=127, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-26 00:43:29,856 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 00:43:29,856 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:29,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-26 00:43:29,857 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 127 flow [2021-03-26 00:43:29,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 26 transitions, 127 flow [2021-03-26 00:43:29,876 INFO L129 PetriNetUnfolder]: 21/83 cut-off events. [2021-03-26 00:43:29,877 INFO L130 PetriNetUnfolder]: For 82/90 co-relation queries the response was YES. [2021-03-26 00:43:29,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 234 conditions, 83 events. 21/83 cut-off events. For 82/90 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 318 event pairs, 11 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 218. Up to 35 conditions per place. [2021-03-26 00:43:29,883 INFO L142 LiptonReduction]: Number of co-enabled transitions 216 [2021-03-26 00:43:30,083 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:43:30,310 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:43:30,377 INFO L154 LiptonReduction]: Checked pairs total: 156 [2021-03-26 00:43:30,377 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:43:30,377 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 521 [2021-03-26 00:43:30,378 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 25 transitions, 123 flow [2021-03-26 00:43:30,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:30,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:30,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:43:30,379 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:30,380 INFO L82 PathProgramCache]: Analyzing trace with hash -466507060, now seen corresponding path program 1 times [2021-03-26 00:43:30,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:30,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856934301] [2021-03-26 00:43:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:30,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:30,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:30,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:30,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:30,429 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:30,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856934301] [2021-03-26 00:43:30,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:30,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:30,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231674506] [2021-03-26 00:43:30,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:30,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:30,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:30,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:30,441 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-26 00:43:30,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 25 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:30,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-26 00:43:30,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:30,501 INFO L129 PetriNetUnfolder]: 107/258 cut-off events. [2021-03-26 00:43:30,502 INFO L130 PetriNetUnfolder]: For 473/658 co-relation queries the response was YES. [2021-03-26 00:43:30,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 258 events. 107/258 cut-off events. For 473/658 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1318 event pairs, 7 based on Foata normal form. 10/258 useless extension candidates. Maximal degree in co-relation 814. Up to 88 conditions per place. [2021-03-26 00:43:30,505 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 23 changer transitions 0/49 dead transitions. [2021-03-26 00:43:30,505 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 49 transitions, 354 flow [2021-03-26 00:43:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-03-26 00:43:30,507 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7940298507462686 [2021-03-26 00:43:30,507 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-03-26 00:43:30,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-03-26 00:43:30,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:30,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-03-26 00:43:30,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,511 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,511 INFO L185 Difference]: Start difference. First operand has 39 places, 25 transitions, 123 flow. Second operand 5 states and 532 transitions. [2021-03-26 00:43:30,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 49 transitions, 354 flow [2021-03-26 00:43:30,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 49 transitions, 326 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-26 00:43:30,515 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 330 flow [2021-03-26 00:43:30,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2021-03-26 00:43:30,515 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2021-03-26 00:43:30,515 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:30,515 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-26 00:43:30,516 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 42 transitions, 330 flow [2021-03-26 00:43:30,516 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 42 transitions, 330 flow [2021-03-26 00:43:30,537 INFO L129 PetriNetUnfolder]: 84/227 cut-off events. [2021-03-26 00:43:30,537 INFO L130 PetriNetUnfolder]: For 559/763 co-relation queries the response was YES. [2021-03-26 00:43:30,538 INFO L84 FinitePrefix]: Finished finitePrefix Result has 900 conditions, 227 events. 84/227 cut-off events. For 559/763 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1184 event pairs, 17 based on Foata normal form. 2/219 useless extension candidates. Maximal degree in co-relation 883. Up to 94 conditions per place. [2021-03-26 00:43:30,542 INFO L142 LiptonReduction]: Number of co-enabled transitions 350 [2021-03-26 00:43:30,590 INFO L154 LiptonReduction]: Checked pairs total: 216 [2021-03-26 00:43:30,590 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:30,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-03-26 00:43:30,591 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 330 flow [2021-03-26 00:43:30,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:30,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:30,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:43:30,593 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:30,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:30,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1816077954, now seen corresponding path program 1 times [2021-03-26 00:43:30,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:30,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404316815] [2021-03-26 00:43:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:30,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:30,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:30,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:30,640 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:30,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:30,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404316815] [2021-03-26 00:43:30,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:30,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:30,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758106361] [2021-03-26 00:43:30,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:30,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:30,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:30,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:30,653 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 134 [2021-03-26 00:43:30,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:30,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 134 [2021-03-26 00:43:30,654 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:30,738 INFO L129 PetriNetUnfolder]: 89/249 cut-off events. [2021-03-26 00:43:30,741 INFO L130 PetriNetUnfolder]: For 940/1531 co-relation queries the response was YES. [2021-03-26 00:43:30,743 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1114 conditions, 249 events. 89/249 cut-off events. For 940/1531 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1372 event pairs, 8 based on Foata normal form. 26/268 useless extension candidates. Maximal degree in co-relation 1095. Up to 93 conditions per place. [2021-03-26 00:43:30,744 INFO L132 encePairwiseOnDemand]: 126/134 looper letters, 14 selfloop transitions, 11 changer transitions 20/57 dead transitions. [2021-03-26 00:43:30,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 574 flow [2021-03-26 00:43:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 527 transitions. [2021-03-26 00:43:30,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7865671641791044 [2021-03-26 00:43:30,746 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 527 transitions. [2021-03-26 00:43:30,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 527 transitions. [2021-03-26 00:43:30,747 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:30,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 527 transitions. [2021-03-26 00:43:30,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,751 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 330 flow. Second operand 5 states and 527 transitions. [2021-03-26 00:43:30,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 574 flow [2021-03-26 00:43:30,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 57 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:43:30,760 INFO L241 Difference]: Finished difference. Result has 51 places, 31 transitions, 251 flow [2021-03-26 00:43:30,760 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=251, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2021-03-26 00:43:30,761 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2021-03-26 00:43:30,761 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:30,761 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 31 transitions, 251 flow [2021-03-26 00:43:30,761 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 31 transitions, 251 flow [2021-03-26 00:43:30,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 31 transitions, 251 flow [2021-03-26 00:43:30,773 INFO L129 PetriNetUnfolder]: 32/107 cut-off events. [2021-03-26 00:43:30,773 INFO L130 PetriNetUnfolder]: For 334/398 co-relation queries the response was YES. [2021-03-26 00:43:30,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 107 events. 32/107 cut-off events. For 334/398 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 461 event pairs, 12 based on Foata normal form. 1/104 useless extension candidates. Maximal degree in co-relation 463. Up to 58 conditions per place. [2021-03-26 00:43:30,775 INFO L142 LiptonReduction]: Number of co-enabled transitions 234 [2021-03-26 00:43:30,784 INFO L154 LiptonReduction]: Checked pairs total: 111 [2021-03-26 00:43:30,784 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:30,784 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 00:43:30,787 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 31 transitions, 251 flow [2021-03-26 00:43:30,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 101.8) internal successors, (509), 5 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:30,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:30,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:43:30,797 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:30,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:30,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1395746800, now seen corresponding path program 1 times [2021-03-26 00:43:30,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:30,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868287627] [2021-03-26 00:43:30,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:30,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:30,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:30,891 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:30,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:30,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:30,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868287627] [2021-03-26 00:43:30,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:30,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:30,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74159456] [2021-03-26 00:43:30,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:30,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:30,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:30,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:30,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-26 00:43:30,906 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 31 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:30,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-26 00:43:30,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:30,942 INFO L129 PetriNetUnfolder]: 24/88 cut-off events. [2021-03-26 00:43:30,942 INFO L130 PetriNetUnfolder]: For 356/442 co-relation queries the response was YES. [2021-03-26 00:43:30,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 88 events. 24/88 cut-off events. For 356/442 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 346 event pairs, 1 based on Foata normal form. 4/89 useless extension candidates. Maximal degree in co-relation 424. Up to 45 conditions per place. [2021-03-26 00:43:30,944 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 11 selfloop transitions, 12 changer transitions 0/37 dead transitions. [2021-03-26 00:43:30,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 37 transitions, 362 flow [2021-03-26 00:43:30,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:30,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:30,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 436 transitions. [2021-03-26 00:43:30,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8134328358208955 [2021-03-26 00:43:30,946 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 436 transitions. [2021-03-26 00:43:30,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 436 transitions. [2021-03-26 00:43:30,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:30,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 436 transitions. [2021-03-26 00:43:30,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,950 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,950 INFO L185 Difference]: Start difference. First operand has 51 places, 31 transitions, 251 flow. Second operand 4 states and 436 transitions. [2021-03-26 00:43:30,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 37 transitions, 362 flow [2021-03-26 00:43:30,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 288 flow, removed 7 selfloop flow, removed 8 redundant places. [2021-03-26 00:43:30,954 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 251 flow [2021-03-26 00:43:30,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=251, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 00:43:30,954 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 00:43:30,954 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:30,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 251 flow [2021-03-26 00:43:30,955 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 251 flow [2021-03-26 00:43:30,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 251 flow [2021-03-26 00:43:30,966 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-03-26 00:43:30,967 INFO L130 PetriNetUnfolder]: For 186/210 co-relation queries the response was YES. [2021-03-26 00:43:30,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 87 events. 24/87 cut-off events. For 186/210 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 337 event pairs, 6 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 338. Up to 45 conditions per place. [2021-03-26 00:43:30,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 250 [2021-03-26 00:43:30,973 INFO L154 LiptonReduction]: Checked pairs total: 164 [2021-03-26 00:43:30,974 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:30,974 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 00:43:30,976 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 251 flow [2021-03-26 00:43:30,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:30,976 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:30,976 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:30,977 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:43:30,977 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:30,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:30,977 INFO L82 PathProgramCache]: Analyzing trace with hash 318446437, now seen corresponding path program 1 times [2021-03-26 00:43:30,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:30,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773419019] [2021-03-26 00:43:30,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773419019] [2021-03-26 00:43:31,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:31,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631371500] [2021-03-26 00:43:31,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:31,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:31,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:31,065 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-26 00:43:31,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 251 flow. Second operand has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-26 00:43:31,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,100 INFO L129 PetriNetUnfolder]: 24/101 cut-off events. [2021-03-26 00:43:31,100 INFO L130 PetriNetUnfolder]: For 396/434 co-relation queries the response was YES. [2021-03-26 00:43:31,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 101 events. 24/101 cut-off events. For 396/434 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 468 event pairs, 11 based on Foata normal form. 7/105 useless extension candidates. Maximal degree in co-relation 424. Up to 52 conditions per place. [2021-03-26 00:43:31,102 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 5 selfloop transitions, 7 changer transitions 7/37 dead transitions. [2021-03-26 00:43:31,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 37 transitions, 324 flow [2021-03-26 00:43:31,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:31,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:31,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 459 transitions. [2021-03-26 00:43:31,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8563432835820896 [2021-03-26 00:43:31,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 459 transitions. [2021-03-26 00:43:31,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 459 transitions. [2021-03-26 00:43:31,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 459 transitions. [2021-03-26 00:43:31,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 114.75) internal successors, (459), 4 states have internal predecessors, (459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,107 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,107 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 251 flow. Second operand 4 states and 459 transitions. [2021-03-26 00:43:31,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 37 transitions, 324 flow [2021-03-26 00:43:31,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 37 transitions, 295 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:31,110 INFO L241 Difference]: Finished difference. Result has 50 places, 30 transitions, 211 flow [2021-03-26 00:43:31,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=50, PETRI_TRANSITIONS=30} [2021-03-26 00:43:31,111 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:43:31,111 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,111 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 30 transitions, 211 flow [2021-03-26 00:43:31,111 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 30 transitions, 211 flow [2021-03-26 00:43:31,112 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 30 transitions, 211 flow [2021-03-26 00:43:31,120 INFO L129 PetriNetUnfolder]: 14/67 cut-off events. [2021-03-26 00:43:31,120 INFO L130 PetriNetUnfolder]: For 150/152 co-relation queries the response was YES. [2021-03-26 00:43:31,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 67 events. 14/67 cut-off events. For 150/152 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 233 event pairs, 3 based on Foata normal form. 1/67 useless extension candidates. Maximal degree in co-relation 231. Up to 32 conditions per place. [2021-03-26 00:43:31,121 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-26 00:43:31,125 INFO L154 LiptonReduction]: Checked pairs total: 124 [2021-03-26 00:43:31,125 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:43:31,128 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 30 transitions, 211 flow [2021-03-26 00:43:31,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,131 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:43:31,131 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,133 INFO L82 PathProgramCache]: Analyzing trace with hash 823625817, now seen corresponding path program 2 times [2021-03-26 00:43:31,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150669080] [2021-03-26 00:43:31,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150669080] [2021-03-26 00:43:31,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:43:31,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862517550] [2021-03-26 00:43:31,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 00:43:31,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 00:43:31,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 00:43:31,206 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 00:43:31,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 30 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 00:43:31,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,276 INFO L129 PetriNetUnfolder]: 199/389 cut-off events. [2021-03-26 00:43:31,277 INFO L130 PetriNetUnfolder]: For 505/530 co-relation queries the response was YES. [2021-03-26 00:43:31,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 389 events. 199/389 cut-off events. For 505/530 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2086 event pairs, 99 based on Foata normal form. 2/336 useless extension candidates. Maximal degree in co-relation 1035. Up to 303 conditions per place. [2021-03-26 00:43:31,280 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-26 00:43:31,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 34 transitions, 239 flow [2021-03-26 00:43:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 00:43:31,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 00:43:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2021-03-26 00:43:31,283 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8482587064676617 [2021-03-26 00:43:31,283 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2021-03-26 00:43:31,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2021-03-26 00:43:31,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2021-03-26 00:43:31,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 134.0) internal successors, (536), 4 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,285 INFO L185 Difference]: Start difference. First operand has 50 places, 30 transitions, 211 flow. Second operand 3 states and 341 transitions. [2021-03-26 00:43:31,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 34 transitions, 239 flow [2021-03-26 00:43:31,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 34 transitions, 202 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-03-26 00:43:31,288 INFO L241 Difference]: Finished difference. Result has 47 places, 34 transitions, 207 flow [2021-03-26 00:43:31,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=47, PETRI_TRANSITIONS=34} [2021-03-26 00:43:31,289 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 9 predicate places. [2021-03-26 00:43:31,289 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,289 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 34 transitions, 207 flow [2021-03-26 00:43:31,290 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 34 transitions, 207 flow [2021-03-26 00:43:31,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 207 flow [2021-03-26 00:43:31,319 INFO L129 PetriNetUnfolder]: 190/374 cut-off events. [2021-03-26 00:43:31,319 INFO L130 PetriNetUnfolder]: For 435/487 co-relation queries the response was YES. [2021-03-26 00:43:31,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 374 events. 190/374 cut-off events. For 435/487 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 2024 event pairs, 92 based on Foata normal form. 1/331 useless extension candidates. Maximal degree in co-relation 1018. Up to 271 conditions per place. [2021-03-26 00:43:31,324 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 00:43:31,329 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:31,329 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-26 00:43:31,333 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 207 flow [2021-03-26 00:43:31,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,334 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:43:31,334 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1156148481, now seen corresponding path program 1 times [2021-03-26 00:43:31,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968622845] [2021-03-26 00:43:31,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,383 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:31,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:31,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968622845] [2021-03-26 00:43:31,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:31,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884673554] [2021-03-26 00:43:31,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:31,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:31,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:31,395 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 134 [2021-03-26 00:43:31,396 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,396 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,396 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 134 [2021-03-26 00:43:31,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,448 INFO L129 PetriNetUnfolder]: 210/408 cut-off events. [2021-03-26 00:43:31,449 INFO L130 PetriNetUnfolder]: For 586/653 co-relation queries the response was YES. [2021-03-26 00:43:31,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1088 conditions, 408 events. 210/408 cut-off events. For 586/653 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 2215 event pairs, 107 based on Foata normal form. 26/375 useless extension candidates. Maximal degree in co-relation 1069. Up to 333 conditions per place. [2021-03-26 00:43:31,452 INFO L132 encePairwiseOnDemand]: 129/134 looper letters, 8 selfloop transitions, 9 changer transitions 0/35 dead transitions. [2021-03-26 00:43:31,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 35 transitions, 247 flow [2021-03-26 00:43:31,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:31,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:31,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-26 00:43:31,455 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8078358208955224 [2021-03-26 00:43:31,455 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-26 00:43:31,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-26 00:43:31,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-26 00:43:31,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,458 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,458 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 207 flow. Second operand 4 states and 433 transitions. [2021-03-26 00:43:31,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 35 transitions, 247 flow [2021-03-26 00:43:31,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 35 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:31,462 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 227 flow [2021-03-26 00:43:31,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-03-26 00:43:31,463 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2021-03-26 00:43:31,463 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,463 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-26 00:43:31,463 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 34 transitions, 227 flow [2021-03-26 00:43:31,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 34 transitions, 227 flow [2021-03-26 00:43:31,495 INFO L129 PetriNetUnfolder]: 221/422 cut-off events. [2021-03-26 00:43:31,495 INFO L130 PetriNetUnfolder]: For 508/557 co-relation queries the response was YES. [2021-03-26 00:43:31,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1108 conditions, 422 events. 221/422 cut-off events. For 508/557 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 2360 event pairs, 120 based on Foata normal form. 4/380 useless extension candidates. Maximal degree in co-relation 1089. Up to 341 conditions per place. [2021-03-26 00:43:31,500 INFO L142 LiptonReduction]: Number of co-enabled transitions 208 [2021-03-26 00:43:31,504 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:31,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 00:43:31,505 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 34 transitions, 227 flow [2021-03-26 00:43:31,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,505 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,505 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,505 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:43:31,505 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,506 INFO L82 PathProgramCache]: Analyzing trace with hash 853029395, now seen corresponding path program 1 times [2021-03-26 00:43:31,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894876498] [2021-03-26 00:43:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894876498] [2021-03-26 00:43:31,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:31,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127964345] [2021-03-26 00:43:31,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:31,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:31,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:31,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 00:43:31,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 34 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 00:43:31,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,605 INFO L129 PetriNetUnfolder]: 145/313 cut-off events. [2021-03-26 00:43:31,605 INFO L130 PetriNetUnfolder]: For 404/662 co-relation queries the response was YES. [2021-03-26 00:43:31,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1071 conditions, 313 events. 145/313 cut-off events. For 404/662 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1593 event pairs, 34 based on Foata normal form. 55/344 useless extension candidates. Maximal degree in co-relation 1050. Up to 249 conditions per place. [2021-03-26 00:43:31,608 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 9 changer transitions 0/38 dead transitions. [2021-03-26 00:43:31,608 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 38 transitions, 271 flow [2021-03-26 00:43:31,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:43:31,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:43:31,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 455 transitions. [2021-03-26 00:43:31,610 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8488805970149254 [2021-03-26 00:43:31,610 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 455 transitions. [2021-03-26 00:43:31,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 455 transitions. [2021-03-26 00:43:31,611 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 455 transitions. [2021-03-26 00:43:31,612 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.75) internal successors, (455), 4 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,613 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,613 INFO L185 Difference]: Start difference. First operand has 50 places, 34 transitions, 227 flow. Second operand 4 states and 455 transitions. [2021-03-26 00:43:31,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 38 transitions, 271 flow [2021-03-26 00:43:31,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 38 transitions, 260 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 00:43:31,618 INFO L241 Difference]: Finished difference. Result has 53 places, 38 transitions, 268 flow [2021-03-26 00:43:31,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=53, PETRI_TRANSITIONS=38} [2021-03-26 00:43:31,618 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2021-03-26 00:43:31,618 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,618 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-26 00:43:31,619 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 38 transitions, 268 flow [2021-03-26 00:43:31,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 38 transitions, 268 flow [2021-03-26 00:43:31,639 INFO L129 PetriNetUnfolder]: 142/299 cut-off events. [2021-03-26 00:43:31,639 INFO L130 PetriNetUnfolder]: For 379/590 co-relation queries the response was YES. [2021-03-26 00:43:31,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1059 conditions, 299 events. 142/299 cut-off events. For 379/590 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1569 event pairs, 35 based on Foata normal form. 7/280 useless extension candidates. Maximal degree in co-relation 1038. Up to 241 conditions per place. [2021-03-26 00:43:31,643 INFO L142 LiptonReduction]: Number of co-enabled transitions 254 [2021-03-26 00:43:31,648 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:31,649 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 00:43:31,650 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 38 transitions, 268 flow [2021-03-26 00:43:31,650 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,650 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,651 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:43:31,651 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash 701304892, now seen corresponding path program 1 times [2021-03-26 00:43:31,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197232295] [2021-03-26 00:43:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197232295] [2021-03-26 00:43:31,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,694 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:43:31,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237395300] [2021-03-26 00:43:31,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:43:31,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:43:31,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:43:31,696 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 00:43:31,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 38 transitions, 268 flow. Second operand has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 00:43:31,697 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,743 INFO L129 PetriNetUnfolder]: 88/207 cut-off events. [2021-03-26 00:43:31,743 INFO L130 PetriNetUnfolder]: For 389/904 co-relation queries the response was YES. [2021-03-26 00:43:31,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 906 conditions, 207 events. 88/207 cut-off events. For 389/904 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 925 event pairs, 5 based on Foata normal form. 106/297 useless extension candidates. Maximal degree in co-relation 883. Up to 163 conditions per place. [2021-03-26 00:43:31,745 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 5 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2021-03-26 00:43:31,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 42 transitions, 328 flow [2021-03-26 00:43:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:31,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:31,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-26 00:43:31,747 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-26 00:43:31,747 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,747 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,750 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,750 INFO L185 Difference]: Start difference. First operand has 53 places, 38 transitions, 268 flow. Second operand 5 states and 569 transitions. [2021-03-26 00:43:31,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 42 transitions, 328 flow [2021-03-26 00:43:31,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 42 transitions, 303 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-03-26 00:43:31,756 INFO L241 Difference]: Finished difference. Result has 55 places, 42 transitions, 311 flow [2021-03-26 00:43:31,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2021-03-26 00:43:31,757 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 17 predicate places. [2021-03-26 00:43:31,757 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,758 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-26 00:43:31,758 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 42 transitions, 311 flow [2021-03-26 00:43:31,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 42 transitions, 311 flow [2021-03-26 00:43:31,773 INFO L129 PetriNetUnfolder]: 86/200 cut-off events. [2021-03-26 00:43:31,774 INFO L130 PetriNetUnfolder]: For 391/504 co-relation queries the response was YES. [2021-03-26 00:43:31,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 200 events. 86/200 cut-off events. For 391/504 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 945 event pairs, 7 based on Foata normal form. 14/200 useless extension candidates. Maximal degree in co-relation 792. Up to 143 conditions per place. [2021-03-26 00:43:31,776 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 00:43:31,780 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:31,780 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,780 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 00:43:31,781 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 311 flow [2021-03-26 00:43:31,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,781 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,781 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:43:31,781 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1718705999, now seen corresponding path program 1 times [2021-03-26 00:43:31,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722586829] [2021-03-26 00:43:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722586829] [2021-03-26 00:43:31,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:31,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628908548] [2021-03-26 00:43:31,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:31,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:31,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:31,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 134 [2021-03-26 00:43:31,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 134 [2021-03-26 00:43:31,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:31,883 INFO L129 PetriNetUnfolder]: 118/265 cut-off events. [2021-03-26 00:43:31,883 INFO L130 PetriNetUnfolder]: For 632/856 co-relation queries the response was YES. [2021-03-26 00:43:31,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1096 conditions, 265 events. 118/265 cut-off events. For 632/856 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1281 event pairs, 7 based on Foata normal form. 24/266 useless extension candidates. Maximal degree in co-relation 1073. Up to 202 conditions per place. [2021-03-26 00:43:31,885 INFO L132 encePairwiseOnDemand]: 130/134 looper letters, 6 selfloop transitions, 6 changer transitions 0/42 dead transitions. [2021-03-26 00:43:31,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 42 transitions, 335 flow [2021-03-26 00:43:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:31,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 569 transitions. [2021-03-26 00:43:31,887 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8492537313432836 [2021-03-26 00:43:31,887 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:31,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 569 transitions. [2021-03-26 00:43:31,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.8) internal successors, (569), 5 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,892 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 134.0) internal successors, (804), 6 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,892 INFO L185 Difference]: Start difference. First operand has 55 places, 42 transitions, 311 flow. Second operand 5 states and 569 transitions. [2021-03-26 00:43:31,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 42 transitions, 335 flow [2021-03-26 00:43:31,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 42 transitions, 301 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-26 00:43:31,896 INFO L241 Difference]: Finished difference. Result has 57 places, 42 transitions, 292 flow [2021-03-26 00:43:31,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=292, PETRI_PLACES=57, PETRI_TRANSITIONS=42} [2021-03-26 00:43:31,896 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 19 predicate places. [2021-03-26 00:43:31,896 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:31,896 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 42 transitions, 292 flow [2021-03-26 00:43:31,896 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 42 transitions, 292 flow [2021-03-26 00:43:31,897 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 42 transitions, 292 flow [2021-03-26 00:43:31,917 INFO L129 PetriNetUnfolder]: 117/258 cut-off events. [2021-03-26 00:43:31,917 INFO L130 PetriNetUnfolder]: For 455/563 co-relation queries the response was YES. [2021-03-26 00:43:31,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 258 events. 117/258 cut-off events. For 455/563 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1284 event pairs, 9 based on Foata normal form. 15/249 useless extension candidates. Maximal degree in co-relation 832. Up to 136 conditions per place. [2021-03-26 00:43:31,919 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 00:43:31,922 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:31,923 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:31,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 00:43:31,924 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 42 transitions, 292 flow [2021-03-26 00:43:31,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:31,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:43:31,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 00:43:31,924 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:31,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:31,925 INFO L82 PathProgramCache]: Analyzing trace with hash -1521336821, now seen corresponding path program 2 times [2021-03-26 00:43:31,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:31,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867541691] [2021-03-26 00:43:31,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:31,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:31,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:31,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:31,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867541691] [2021-03-26 00:43:31,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:31,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 00:43:31,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553582748] [2021-03-26 00:43:31,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:43:31,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:31,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:43:31,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:43:31,993 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 134 [2021-03-26 00:43:31,994 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 42 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:31,994 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:31,994 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 134 [2021-03-26 00:43:31,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:32,049 INFO L129 PetriNetUnfolder]: 97/214 cut-off events. [2021-03-26 00:43:32,049 INFO L130 PetriNetUnfolder]: For 532/906 co-relation queries the response was YES. [2021-03-26 00:43:32,050 INFO L84 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 214 events. 97/214 cut-off events. For 532/906 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 949 event pairs, 1 based on Foata normal form. 144/338 useless extension candidates. Maximal degree in co-relation 804. Up to 92 conditions per place. [2021-03-26 00:43:32,050 INFO L132 encePairwiseOnDemand]: 128/134 looper letters, 1 selfloop transitions, 17 changer transitions 8/42 dead transitions. [2021-03-26 00:43:32,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 42 transitions, 328 flow [2021-03-26 00:43:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:43:32,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:43:32,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 679 transitions. [2021-03-26 00:43:32,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8445273631840796 [2021-03-26 00:43:32,053 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 679 transitions. [2021-03-26 00:43:32,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 679 transitions. [2021-03-26 00:43:32,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:32,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 679 transitions. [2021-03-26 00:43:32,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.16666666666667) internal successors, (679), 6 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 134.0) internal successors, (938), 7 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,057 INFO L185 Difference]: Start difference. First operand has 57 places, 42 transitions, 292 flow. Second operand 6 states and 679 transitions. [2021-03-26 00:43:32,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 42 transitions, 328 flow [2021-03-26 00:43:32,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 42 transitions, 302 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-03-26 00:43:32,060 INFO L241 Difference]: Finished difference. Result has 58 places, 34 transitions, 247 flow [2021-03-26 00:43:32,060 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=134, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=58, PETRI_TRANSITIONS=34} [2021-03-26 00:43:32,060 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 20 predicate places. [2021-03-26 00:43:32,060 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:32,060 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 34 transitions, 247 flow [2021-03-26 00:43:32,061 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 34 transitions, 247 flow [2021-03-26 00:43:32,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 34 transitions, 247 flow [2021-03-26 00:43:32,068 INFO L129 PetriNetUnfolder]: 38/90 cut-off events. [2021-03-26 00:43:32,068 INFO L130 PetriNetUnfolder]: For 185/226 co-relation queries the response was YES. [2021-03-26 00:43:32,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 349 conditions, 90 events. 38/90 cut-off events. For 185/226 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 300 event pairs, 1 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 328. Up to 38 conditions per place. [2021-03-26 00:43:32,070 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 00:43:32,311 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-26 00:43:32,311 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:43:32,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 252 [2021-03-26 00:43:32,314 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 32 transitions, 256 flow [2021-03-26 00:43:32,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 110.83333333333333) internal successors, (665), 6 states have internal predecessors, (665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,315 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:43:32,315 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] [2021-03-26 00:43:32,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 00:43:32,315 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:43:32,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:43:32,315 INFO L82 PathProgramCache]: Analyzing trace with hash -737664482, now seen corresponding path program 1 times [2021-03-26 00:43:32,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:43:32,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622670043] [2021-03-26 00:43:32,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:43:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:43:32,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:32,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:43:32,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:43:32,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:43:32,371 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:43:32,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:43:32,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 00:43:32,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622670043] [2021-03-26 00:43:32,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:43:32,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:43:32,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396743684] [2021-03-26 00:43:32,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:43:32,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:43:32,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:43:32,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:43:32,384 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 139 [2021-03-26 00:43:32,384 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 32 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:43:32,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 139 [2021-03-26 00:43:32,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:43:32,423 INFO L129 PetriNetUnfolder]: 49/120 cut-off events. [2021-03-26 00:43:32,423 INFO L130 PetriNetUnfolder]: For 366/421 co-relation queries the response was YES. [2021-03-26 00:43:32,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 120 events. 49/120 cut-off events. For 366/421 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 454 event pairs, 0 based on Foata normal form. 8/124 useless extension candidates. Maximal degree in co-relation 483. Up to 49 conditions per place. [2021-03-26 00:43:32,424 INFO L132 encePairwiseOnDemand]: 131/139 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2021-03-26 00:43:32,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 32 transitions, 272 flow [2021-03-26 00:43:32,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:43:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:43:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 516 transitions. [2021-03-26 00:43:32,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7424460431654676 [2021-03-26 00:43:32,426 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 516 transitions. [2021-03-26 00:43:32,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 516 transitions. [2021-03-26 00:43:32,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:43:32,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 516 transitions. [2021-03-26 00:43:32,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.2) internal successors, (516), 5 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,429 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 139.0) internal successors, (834), 6 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,429 INFO L185 Difference]: Start difference. First operand has 54 places, 32 transitions, 256 flow. Second operand 5 states and 516 transitions. [2021-03-26 00:43:32,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 32 transitions, 272 flow [2021-03-26 00:43:32,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 32 transitions, 158 flow, removed 15 selfloop flow, removed 17 redundant places. [2021-03-26 00:43:32,431 INFO L241 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2021-03-26 00:43:32,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2021-03-26 00:43:32,431 INFO L343 CegarLoopForPetriNet]: 38 programPoint places, 2 predicate places. [2021-03-26 00:43:32,431 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:43:32,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:43:32,432 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 0 transitions, 0 flow [2021-03-26 00:43:32,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:43:32,432 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:43:32,432 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:43:32,432 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. [2021-03-26 00:43:32,432 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:43:32,432 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:43:32,432 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:43:32,432 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:43:32,433 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:43:32,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:43:32,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 00:43:32,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:43:32 BasicIcfg [2021-03-26 00:43:32,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:43:32,437 INFO L168 Benchmark]: Toolchain (without parser) took 6721.82 ms. Allocated memory was 255.9 MB in the beginning and 421.5 MB in the end (delta: 165.7 MB). Free memory was 235.5 MB in the beginning and 359.1 MB in the end (delta: -123.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:32,437 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:43:32,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.69 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 235.0 MB in the beginning and 313.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:32,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 350.2 MB. Free memory was 313.2 MB in the beginning and 311.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:32,438 INFO L168 Benchmark]: Boogie Preprocessor took 39.13 ms. Allocated memory is still 350.2 MB. Free memory was 311.1 MB in the beginning and 309.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:43:32,438 INFO L168 Benchmark]: RCFGBuilder took 426.24 ms. Allocated memory is still 350.2 MB. Free memory was 309.6 MB in the beginning and 324.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:32,440 INFO L168 Benchmark]: TraceAbstraction took 5653.81 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 323.7 MB in the beginning and 359.1 MB in the end (delta: -35.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.0 GB. [2021-03-26 00:43:32,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 255.9 MB. Free memory is still 237.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 528.69 ms. Allocated memory was 255.9 MB in the beginning and 350.2 MB in the end (delta: 94.4 MB). Free memory was 235.0 MB in the beginning and 313.2 MB in the end (delta: -78.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 350.2 MB. Free memory was 313.2 MB in the beginning and 311.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 39.13 ms. Allocated memory is still 350.2 MB. Free memory was 311.1 MB in the beginning and 309.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 426.24 ms. Allocated memory is still 350.2 MB. Free memory was 309.6 MB in the beginning and 324.4 MB in the end (delta: -14.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5653.81 ms. Allocated memory was 350.2 MB in the beginning and 421.5 MB in the end (delta: 71.3 MB). Free memory was 323.7 MB in the beginning and 359.1 MB in the end (delta: -35.4 MB). Peak memory consumption was 35.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1675.8ms, 80 PlacesBefore, 38 PlacesAfterwards, 68 TransitionsBefore, 25 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 43 TotalNumberOfCompositions, 1269 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 878, positive: 850, positive conditional: 850, positive unconditional: 0, negative: 28, negative conditional: 28, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 759, positive: 735, positive conditional: 0, positive unconditional: 735, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 759, positive: 718, positive conditional: 0, positive unconditional: 718, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 41, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 195, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 113, negative conditional: 0, negative unconditional: 113, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 878, positive: 115, positive conditional: 115, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 759, unknown conditional: 759, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 27, Positive conditional cache size: 27, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 542.5ms, 40 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 24 TransitionsAfterwards, 226 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 278 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 120, positive: 101, positive conditional: 101, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 12, positive unconditional: 30, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 12, positive unconditional: 30, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 43, negative conditional: 6, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 120, positive: 59, positive conditional: 59, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 49, unknown conditional: 49, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 54, Positive cache size: 46, Positive conditional cache size: 46, Positive unconditional cache size: 0, Negative cache size: 8, Negative conditional cache size: 8, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 519.6ms, 40 PlacesBefore, 39 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 216 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 12, positive unconditional: 11, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 12, positive unconditional: 11, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 25, unknown conditional: 25, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 69, Positive conditional cache size: 69, Positive unconditional cache size: 0, Negative cache size: 10, Negative conditional cache size: 10, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.6ms, 45 PlacesBefore, 45 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 350 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 216 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 155, positive: 145, positive conditional: 145, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 60, positive conditional: 30, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 62, positive: 60, positive conditional: 30, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 62, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 155, positive: 85, positive conditional: 85, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 62, unknown conditional: 62, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 141, Positive cache size: 129, Positive conditional cache size: 129, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.9ms, 51 PlacesBefore, 51 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 111 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 76, positive: 69, positive conditional: 69, 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: 15, positive: 15, positive conditional: 10, positive unconditional: 5, 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: 15, positive: 15, positive conditional: 10, positive unconditional: 5, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, 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: 76, positive: 54, positive conditional: 54, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 144, Positive conditional cache size: 144, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.7ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 250 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 164 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119, positive: 108, positive conditional: 108, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 19, positive unconditional: 10, 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: 29, positive: 29, positive conditional: 19, positive unconditional: 10, 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: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 119, positive: 79, positive conditional: 79, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 29, unknown conditional: 29, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 173, Positive conditional cache size: 173, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.8ms, 50 PlacesBefore, 50 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 71, positive: 62, positive conditional: 62, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 8, positive unconditional: 5, 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: 13, positive: 13, positive conditional: 8, positive unconditional: 5, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 71, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.7ms, 47 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 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): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.9ms, 50 PlacesBefore, 50 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 208 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): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.0ms, 53 PlacesBefore, 53 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 254 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): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9ms, 55 PlacesBefore, 55 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 248 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): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.2ms, 57 PlacesBefore, 57 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 248 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): 198, Positive cache size: 186, Positive conditional cache size: 186, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 250.6ms, 58 PlacesBefore, 54 PlacesAfterwards, 34 TransitionsBefore, 32 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 32, 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: 31, positive: 31, positive conditional: 29, positive unconditional: 2, 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: 31, positive: 31, positive conditional: 29, positive unconditional: 2, 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: 31, positive: 31, positive conditional: 0, positive unconditional: 31, 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: 32, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 31, unknown conditional: 31, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 43, Positive conditional cache size: 43, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 40 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): 44, Positive cache size: 43, Positive conditional cache size: 43, Positive unconditional cache size: 0, Negative cache size: 1, Negative conditional cache size: 1, 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, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 5552.7ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 936.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1776.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 41 SDslu, 37 SDs, 0 SdLazy, 176 SolverSat, 53 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 180.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=330occurred in iteration=3, InterpolantAutomatonStates: 58, 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: 47.8ms SsaConstructionTime, 298.4ms SatisfiabilityAnalysisTime, 636.3ms InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 1026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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...