/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/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:54:47,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:54:47,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:54:47,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:54:47,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:54:47,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:54:47,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:54:47,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:54:47,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:54:47,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:54:47,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:54:47,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:54:47,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:54:47,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:54:47,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:54:47,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:54:47,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:54:47,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:54:47,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:54:47,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:54:47,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:54:47,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:54:47,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:54:47,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:54:47,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:54:47,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:54:47,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:54:47,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:54:47,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:54:47,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:54:47,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:54:47,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:54:47,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:54:47,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:54:47,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:54:47,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:54:47,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:54:47,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:54:47,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:54:47,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:54:47,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:54:47,975 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:54:47,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:54:47,976 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:54:47,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:54:47,976 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:54:47,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:54:47,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:54:47,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:54:47,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:54:47,977 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:54:47,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:54:47,978 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:54:47,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:54:47,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:54:47,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:54:47,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:54:47,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:54:47,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:54:47,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:54:47,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:54:47,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:54:47,981 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:54:47,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:54:47,981 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:54:47,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:54:47,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:54:47,982 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:54:48,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:54:48,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:54:48,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:54:48,585 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:54:48,586 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:54:48,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-04-28 23:54:48,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd515418/9135df7f4fd742e59f84d3233c09f8ba/FLAGb718d6da9 [2021-04-28 23:54:49,690 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:54:49,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2021-04-28 23:54:49,722 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd515418/9135df7f4fd742e59f84d3233c09f8ba/FLAGb718d6da9 [2021-04-28 23:54:49,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abd515418/9135df7f4fd742e59f84d3233c09f8ba [2021-04-28 23:54:49,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:54:49,989 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:54:49,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:54:49,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:54:49,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:54:49,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:54:49" (1/1) ... [2021-04-28 23:54:50,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72aa5896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50, skipping insertion in model container [2021-04-28 23:54:50,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:54:49" (1/1) ... [2021-04-28 23:54:50,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:54:50,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:54:50,281 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/safe015_tso.opt.i[949,962] [2021-04-28 23:54:50,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:54:50,555 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:54:50,573 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/safe015_tso.opt.i[949,962] [2021-04-28 23:54:50,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:54:50,863 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:54:50,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50 WrapperNode [2021-04-28 23:54:50,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:54:50,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:54:50,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:54:50,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:54:50,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:54:50,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:54:50,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:54:50,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:54:50,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,956 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... [2021-04-28 23:54:50,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:54:50,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:54:50,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:54:50,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:54:50,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:54:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:54:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:54:51,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:54:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:54:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:54:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:54:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:54:51,115 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:54:51,115 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:54:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:54:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:54:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:54:51,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:54:51,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:54:51,119 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:54:51,669 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:54:51,669 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:54:51,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:54:51 BoogieIcfgContainer [2021-04-28 23:54:51,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:54:51,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:54:51,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:54:51,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:54:51,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:54:49" (1/3) ... [2021-04-28 23:54:51,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1409fa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:54:51, skipping insertion in model container [2021-04-28 23:54:51,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:54:50" (2/3) ... [2021-04-28 23:54:51,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1409fa04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:54:51, skipping insertion in model container [2021-04-28 23:54:51,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:54:51" (3/3) ... [2021-04-28 23:54:51,686 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2021-04-28 23:54:51,697 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:54:51,705 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:54:51,706 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:54:51,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,754 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,755 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,755 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,756 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,756 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,757 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,757 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,757 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,758 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,758 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,759 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,759 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,759 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,760 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,760 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,760 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,761 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,762 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,762 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,763 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,763 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,763 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,763 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,764 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,765 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,768 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,769 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,769 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,776 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,777 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,777 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,781 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,782 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:54:51,785 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:54:51,816 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:54:51,846 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:54:51,847 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:54:51,847 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:54:51,847 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:54:51,847 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:54:51,848 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:54:51,848 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:54:51,848 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:54:51,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:54:51,918 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:54:51,919 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:51,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 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. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:54:51,925 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:54:51,932 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:51,935 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:54:51,961 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:51,967 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:51,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:54:51,994 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:54:51,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:54:51,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:54:51,999 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:54:56,955 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:54:57,119 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:54:57,284 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:57,446 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:57,611 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:57,770 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:54:57,952 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:54:58,142 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:54:58,303 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:54:58,456 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-28 23:54:58,859 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:54:59,056 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:54:59,286 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:59,522 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:54:59,736 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:54:59,927 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:55:00,141 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:00,385 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:00,626 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:00,870 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:01,105 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:55:01,335 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:55:01,561 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:01,783 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:55:02,017 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:55:02,251 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:55:02,579 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:55:02,907 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:55:03,227 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:55:03,334 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:55:03,612 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:55:03,728 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 23:55:03,777 INFO L158 LiptonReduction]: Checked pairs total: 6612 [2021-04-28 23:55:03,777 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:55:03,783 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11850 [2021-04-28 23:55:03,808 INFO L129 PetriNetUnfolder]: 0/63 cut-off events. [2021-04-28 23:55:03,808 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:55:03,809 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:03,810 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:03,810 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:03,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:03,817 INFO L82 PathProgramCache]: Analyzing trace with hash 2098921344, now seen corresponding path program 1 times [2021-04-28 23:55:03,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:03,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219587213] [2021-04-28 23:55:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:04,182 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:04,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:04,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219587213] [2021-04-28 23:55:04,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:04,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:55:04,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22473932] [2021-04-28 23:55:04,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:55:04,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:04,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:55:04,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:55:04,259 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:04,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:04,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:04,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:04,580 INFO L129 PetriNetUnfolder]: 439/1150 cut-off events. [2021-04-28 23:55:04,580 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:55:04,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1880 conditions, 1150 events. 439/1150 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 9759 event pairs, 137 based on Foata normal form. 0/682 useless extension candidates. Maximal degree in co-relation 1837. Up to 362 conditions per place. [2021-04-28 23:55:04,596 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 7 selfloop transitions, 7 changer transitions 33/78 dead transitions. [2021-04-28 23:55:04,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 78 transitions, 233 flow [2021-04-28 23:55:04,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:55:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:55:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2021-04-28 23:55:04,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2021-04-28 23:55:04,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2021-04-28 23:55:04,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2021-04-28 23:55:04,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:04,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2021-04-28 23:55:04,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,644 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 345 transitions. [2021-04-28 23:55:04,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 78 transitions, 233 flow [2021-04-28 23:55:04,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 230 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:55:04,654 INFO L241 Difference]: Finished difference. Result has 79 places, 45 transitions, 138 flow [2021-04-28 23:55:04,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=79, PETRI_TRANSITIONS=45} [2021-04-28 23:55:04,659 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-28 23:55:04,660 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:04,660 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:55:04,661 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 45 transitions, 138 flow [2021-04-28 23:55:04,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:55:04,702 INFO L129 PetriNetUnfolder]: 88/321 cut-off events. [2021-04-28 23:55:04,702 INFO L130 PetriNetUnfolder]: For 42/45 co-relation queries the response was YES. [2021-04-28 23:55:04,704 INFO L84 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 321 events. 88/321 cut-off events. For 42/45 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2165 event pairs, 22 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 569. Up to 87 conditions per place. [2021-04-28 23:55:04,712 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-28 23:55:04,720 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:55:04,720 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:04,720 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-04-28 23:55:04,723 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:55:04,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,724 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:04,724 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:04,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:55:04,725 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:04,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:04,726 INFO L82 PathProgramCache]: Analyzing trace with hash 642050643, now seen corresponding path program 1 times [2021-04-28 23:55:04,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:04,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205822148] [2021-04-28 23:55:04,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:04,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:04,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:04,876 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:04,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:04,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205822148] [2021-04-28 23:55:04,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:04,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:55:04,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334915548] [2021-04-28 23:55:04,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:55:04,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:04,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:55:04,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:55:04,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:04,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:04,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:04,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:04,964 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:55:04,965 INFO L130 PetriNetUnfolder]: For 53/154 co-relation queries the response was YES. [2021-04-28 23:55:04,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 255 events. 73/255 cut-off events. For 53/154 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1469 event pairs, 6 based on Foata normal form. 2/176 useless extension candidates. Maximal degree in co-relation 608. Up to 72 conditions per place. [2021-04-28 23:55:04,970 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 14 selfloop transitions, 8 changer transitions 0/53 dead transitions. [2021-04-28 23:55:04,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 222 flow [2021-04-28 23:55:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:55:04,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:55:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:55:04,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:55:04,976 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:55:04,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:55:04,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:04,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:55:04,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,984 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:04,985 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:55:04,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 222 flow [2021-04-28 23:55:04,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 200 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:55:04,991 INFO L241 Difference]: Finished difference. Result has 54 places, 49 transitions, 182 flow [2021-04-28 23:55:04,991 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2021-04-28 23:55:04,992 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -24 predicate places. [2021-04-28 23:55:04,992 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:04,993 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:55:04,993 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 49 transitions, 182 flow [2021-04-28 23:55:04,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 49 transitions, 182 flow [2021-04-28 23:55:05,026 INFO L129 PetriNetUnfolder]: 73/255 cut-off events. [2021-04-28 23:55:05,026 INFO L130 PetriNetUnfolder]: For 106/110 co-relation queries the response was YES. [2021-04-28 23:55:05,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 255 events. 73/255 cut-off events. For 106/110 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1516 event pairs, 18 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 557. Up to 72 conditions per place. [2021-04-28 23:55:05,035 INFO L146 LiptonReduction]: Number of co-enabled transitions 1152 [2021-04-28 23:55:05,043 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:55:05,044 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:05,044 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-04-28 23:55:05,046 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 182 flow [2021-04-28 23:55:05,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:05,047 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:05,048 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:55:05,048 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:05,049 INFO L82 PathProgramCache]: Analyzing trace with hash 642050891, now seen corresponding path program 1 times [2021-04-28 23:55:05,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:05,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260929852] [2021-04-28 23:55:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:05,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:05,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:05,198 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:05,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:05,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:05,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260929852] [2021-04-28 23:55:05,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:05,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:55:05,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575197109] [2021-04-28 23:55:05,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:55:05,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:05,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:55:05,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:55:05,217 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:05,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,218 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:05,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:05,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:05,284 INFO L129 PetriNetUnfolder]: 61/230 cut-off events. [2021-04-28 23:55:05,285 INFO L130 PetriNetUnfolder]: For 128/240 co-relation queries the response was YES. [2021-04-28 23:55:05,286 INFO L84 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 230 events. 61/230 cut-off events. For 128/240 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1297 event pairs, 6 based on Foata normal form. 10/166 useless extension candidates. Maximal degree in co-relation 610. Up to 66 conditions per place. [2021-04-28 23:55:05,288 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 14 selfloop transitions, 15 changer transitions 0/60 dead transitions. [2021-04-28 23:55:05,289 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 60 transitions, 310 flow [2021-04-28 23:55:05,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:55:05,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:55:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2021-04-28 23:55:05,292 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6545454545454545 [2021-04-28 23:55:05,292 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 432 transitions. [2021-04-28 23:55:05,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 432 transitions. [2021-04-28 23:55:05,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:05,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 432 transitions. [2021-04-28 23:55:05,295 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) [2021-04-28 23:55:05,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,299 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,299 INFO L185 Difference]: Start difference. First operand has 54 places, 49 transitions, 182 flow. Second operand 4 states and 432 transitions. [2021-04-28 23:55:05,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 60 transitions, 310 flow [2021-04-28 23:55:05,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 60 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:55:05,305 INFO L241 Difference]: Finished difference. Result has 59 places, 57 transitions, 306 flow [2021-04-28 23:55:05,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=306, PETRI_PLACES=59, PETRI_TRANSITIONS=57} [2021-04-28 23:55:05,306 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-28 23:55:05,306 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:05,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 57 transitions, 306 flow [2021-04-28 23:55:05,307 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 57 transitions, 306 flow [2021-04-28 23:55:05,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 57 transitions, 306 flow [2021-04-28 23:55:05,340 INFO L129 PetriNetUnfolder]: 61/239 cut-off events. [2021-04-28 23:55:05,340 INFO L130 PetriNetUnfolder]: For 326/336 co-relation queries the response was YES. [2021-04-28 23:55:05,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 667 conditions, 239 events. 61/239 cut-off events. For 326/336 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1437 event pairs, 4 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 651. Up to 66 conditions per place. [2021-04-28 23:55:05,349 INFO L146 LiptonReduction]: Number of co-enabled transitions 1372 [2021-04-28 23:55:05,360 INFO L158 LiptonReduction]: Checked pairs total: 36 [2021-04-28 23:55:05,360 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:05,361 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-04-28 23:55:05,363 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 57 transitions, 306 flow [2021-04-28 23:55:05,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,363 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:05,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:05,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:55:05,364 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:05,365 INFO L82 PathProgramCache]: Analyzing trace with hash -59784782, now seen corresponding path program 1 times [2021-04-28 23:55:05,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:05,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859504212] [2021-04-28 23:55:05,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:05,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:05,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:05,439 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:05,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:05,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859504212] [2021-04-28 23:55:05,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:05,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:55:05,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227247159] [2021-04-28 23:55:05,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:55:05,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:05,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:55:05,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:55:05,459 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:05,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 57 transitions, 306 flow. Second operand has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:05,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:05,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:05,535 INFO L129 PetriNetUnfolder]: 50/191 cut-off events. [2021-04-28 23:55:05,535 INFO L130 PetriNetUnfolder]: For 284/388 co-relation queries the response was YES. [2021-04-28 23:55:05,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 191 events. 50/191 cut-off events. For 284/388 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 997 event pairs, 0 based on Foata normal form. 6/138 useless extension candidates. Maximal degree in co-relation 647. Up to 52 conditions per place. [2021-04-28 23:55:05,539 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 20 selfloop transitions, 18 changer transitions 0/69 dead transitions. [2021-04-28 23:55:05,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 69 transitions, 495 flow [2021-04-28 23:55:05,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:55:05,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:55:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:55:05,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6515151515151515 [2021-04-28 23:55:05,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:55:05,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:55:05,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:05,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:55:05,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,550 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,550 INFO L185 Difference]: Start difference. First operand has 59 places, 57 transitions, 306 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:55:05,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 69 transitions, 495 flow [2021-04-28 23:55:05,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 69 transitions, 495 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:55:05,561 INFO L241 Difference]: Finished difference. Result has 65 places, 65 transitions, 484 flow [2021-04-28 23:55:05,561 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=484, PETRI_PLACES=65, PETRI_TRANSITIONS=65} [2021-04-28 23:55:05,562 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -13 predicate places. [2021-04-28 23:55:05,562 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:05,562 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 65 transitions, 484 flow [2021-04-28 23:55:05,563 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 65 transitions, 484 flow [2021-04-28 23:55:05,564 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 65 transitions, 484 flow [2021-04-28 23:55:05,605 INFO L129 PetriNetUnfolder]: 50/206 cut-off events. [2021-04-28 23:55:05,605 INFO L130 PetriNetUnfolder]: For 481/511 co-relation queries the response was YES. [2021-04-28 23:55:05,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 206 events. 50/206 cut-off events. For 481/511 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1192 event pairs, 0 based on Foata normal form. 1/140 useless extension candidates. Maximal degree in co-relation 680. Up to 52 conditions per place. [2021-04-28 23:55:05,616 INFO L146 LiptonReduction]: Number of co-enabled transitions 1610 [2021-04-28 23:55:05,629 INFO L158 LiptonReduction]: Checked pairs total: 44 [2021-04-28 23:55:05,630 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:05,632 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 70 [2021-04-28 23:55:05,644 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 65 transitions, 484 flow [2021-04-28 23:55:05,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.0) internal successors, (416), 4 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,645 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:05,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:05,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:55:05,649 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:05,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1319763289, now seen corresponding path program 1 times [2021-04-28 23:55:05,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:05,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903425060] [2021-04-28 23:55:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:05,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:05,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:55:05,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:05,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:05,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903425060] [2021-04-28 23:55:05,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:05,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:55:05,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131844467] [2021-04-28 23:55:05,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:55:05,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:05,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:55:05,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:55:05,774 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 165 [2021-04-28 23:55:05,777 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 65 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,778 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:05,778 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 165 [2021-04-28 23:55:05,778 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:05,829 INFO L129 PetriNetUnfolder]: 41/170 cut-off events. [2021-04-28 23:55:05,829 INFO L130 PetriNetUnfolder]: For 544/754 co-relation queries the response was YES. [2021-04-28 23:55:05,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 658 conditions, 170 events. 41/170 cut-off events. For 544/754 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 867 event pairs, 0 based on Foata normal form. 9/124 useless extension candidates. Maximal degree in co-relation 635. Up to 46 conditions per place. [2021-04-28 23:55:05,832 INFO L132 encePairwiseOnDemand]: 162/165 looper letters, 17 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2021-04-28 23:55:05,832 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 592 flow [2021-04-28 23:55:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:55:05,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:55:05,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2021-04-28 23:55:05,835 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7636363636363637 [2021-04-28 23:55:05,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2021-04-28 23:55:05,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2021-04-28 23:55:05,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:05,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2021-04-28 23:55:05,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,840 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,840 INFO L185 Difference]: Start difference. First operand has 65 places, 65 transitions, 484 flow. Second operand 3 states and 378 transitions. [2021-04-28 23:55:05,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 592 flow [2021-04-28 23:55:05,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 70 transitions, 587 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:55:05,848 INFO L241 Difference]: Finished difference. Result has 67 places, 65 transitions, 508 flow [2021-04-28 23:55:05,849 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=67, PETRI_TRANSITIONS=65} [2021-04-28 23:55:05,849 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -11 predicate places. [2021-04-28 23:55:05,849 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:05,849 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 65 transitions, 508 flow [2021-04-28 23:55:05,850 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 65 transitions, 508 flow [2021-04-28 23:55:05,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 65 transitions, 508 flow [2021-04-28 23:55:05,875 INFO L129 PetriNetUnfolder]: 41/170 cut-off events. [2021-04-28 23:55:05,876 INFO L130 PetriNetUnfolder]: For 472/502 co-relation queries the response was YES. [2021-04-28 23:55:05,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 170 events. 41/170 cut-off events. For 472/502 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 897 event pairs, 1 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 621. Up to 46 conditions per place. [2021-04-28 23:55:05,883 INFO L146 LiptonReduction]: Number of co-enabled transitions 1610 [2021-04-28 23:55:05,895 INFO L158 LiptonReduction]: Checked pairs total: 44 [2021-04-28 23:55:05,896 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:05,896 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-28 23:55:05,898 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 65 transitions, 508 flow [2021-04-28 23:55:05,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,898 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:05,899 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:05,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:55:05,899 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:05,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:05,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1839860057, now seen corresponding path program 1 times [2021-04-28 23:55:05,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:05,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716007323] [2021-04-28 23:55:05,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:05,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:05,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:05,969 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-28 23:55:05,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:55:05,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:05,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716007323] [2021-04-28 23:55:05,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:05,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:55:05,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719695423] [2021-04-28 23:55:05,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:55:05,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:05,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:55:05,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:55:05,980 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:05,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 65 transitions, 508 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:05,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:05,982 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:05,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:07,564 INFO L129 PetriNetUnfolder]: 5716/9594 cut-off events. [2021-04-28 23:55:07,564 INFO L130 PetriNetUnfolder]: For 4940/5768 co-relation queries the response was YES. [2021-04-28 23:55:07,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20306 conditions, 9594 events. 5716/9594 cut-off events. For 4940/5768 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 88305 event pairs, 2457 based on Foata normal form. 130/2562 useless extension candidates. Maximal degree in co-relation 20282. Up to 6226 conditions per place. [2021-04-28 23:55:07,696 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 29 selfloop transitions, 27 changer transitions 0/100 dead transitions. [2021-04-28 23:55:07,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 100 transitions, 690 flow [2021-04-28 23:55:07,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:55:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:55:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-28 23:55:07,701 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6921212121212121 [2021-04-28 23:55:07,702 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-28 23:55:07,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-28 23:55:07,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:07,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-28 23:55:07,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:07,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:07,710 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:07,710 INFO L185 Difference]: Start difference. First operand has 67 places, 65 transitions, 508 flow. Second operand 5 states and 571 transitions. [2021-04-28 23:55:07,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 100 transitions, 690 flow [2021-04-28 23:55:07,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 100 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:55:07,728 INFO L241 Difference]: Finished difference. Result has 72 places, 90 transitions, 693 flow [2021-04-28 23:55:07,728 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=693, PETRI_PLACES=72, PETRI_TRANSITIONS=90} [2021-04-28 23:55:07,728 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -6 predicate places. [2021-04-28 23:55:07,729 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:07,729 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 90 transitions, 693 flow [2021-04-28 23:55:07,729 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 90 transitions, 693 flow [2021-04-28 23:55:07,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 90 transitions, 693 flow [2021-04-28 23:55:09,088 INFO L129 PetriNetUnfolder]: 5298/9295 cut-off events. [2021-04-28 23:55:09,089 INFO L130 PetriNetUnfolder]: For 5638/11702 co-relation queries the response was YES. [2021-04-28 23:55:09,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26878 conditions, 9295 events. 5298/9295 cut-off events. For 5638/11702 co-relation queries the response was YES. Maximal size of possible extension queue 2385. Compared 88487 event pairs, 2367 based on Foata normal form. 20/2558 useless extension candidates. Maximal degree in co-relation 26852. Up to 8543 conditions per place. [2021-04-28 23:55:09,420 INFO L146 LiptonReduction]: Number of co-enabled transitions 2154 [2021-04-28 23:55:09,450 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:09,451 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:09,452 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1723 [2021-04-28 23:55:09,463 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 90 transitions, 693 flow [2021-04-28 23:55:09,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:09,464 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:09,464 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:09,466 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:55:09,466 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:09,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:09,468 INFO L82 PathProgramCache]: Analyzing trace with hash 148293006, now seen corresponding path program 1 times [2021-04-28 23:55:09,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:09,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916482079] [2021-04-28 23:55:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:09,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:09,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:09,590 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:55:09,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:55:09,599 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:55:09,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:55:09,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:09,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916482079] [2021-04-28 23:55:09,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:09,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:55:09,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712821591] [2021-04-28 23:55:09,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:55:09,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:09,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:55:09,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:55:09,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:09,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 90 transitions, 693 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:09,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:09,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:09,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:11,674 INFO L129 PetriNetUnfolder]: 5110/9903 cut-off events. [2021-04-28 23:55:11,674 INFO L130 PetriNetUnfolder]: For 9062/30140 co-relation queries the response was YES. [2021-04-28 23:55:11,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37996 conditions, 9903 events. 5110/9903 cut-off events. For 9062/30140 co-relation queries the response was YES. Maximal size of possible extension queue 3036. Compared 104694 event pairs, 459 based on Foata normal form. 218/3242 useless extension candidates. Maximal degree in co-relation 37968. Up to 8951 conditions per place. [2021-04-28 23:55:11,803 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 21 selfloop transitions, 52 changer transitions 9/126 dead transitions. [2021-04-28 23:55:11,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 126 transitions, 1052 flow [2021-04-28 23:55:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:55:11,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:55:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-28 23:55:11,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6935064935064935 [2021-04-28 23:55:11,809 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-28 23:55:11,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-28 23:55:11,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:11,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-28 23:55:11,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:11,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:11,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:11,819 INFO L185 Difference]: Start difference. First operand has 72 places, 90 transitions, 693 flow. Second operand 7 states and 801 transitions. [2021-04-28 23:55:11,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 126 transitions, 1052 flow [2021-04-28 23:55:11,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 126 transitions, 1052 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:55:11,860 INFO L241 Difference]: Finished difference. Result has 81 places, 115 transitions, 1032 flow [2021-04-28 23:55:11,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1032, PETRI_PLACES=81, PETRI_TRANSITIONS=115} [2021-04-28 23:55:11,861 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2021-04-28 23:55:11,861 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:11,862 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 115 transitions, 1032 flow [2021-04-28 23:55:11,862 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 115 transitions, 1032 flow [2021-04-28 23:55:11,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 115 transitions, 1032 flow [2021-04-28 23:55:13,190 INFO L129 PetriNetUnfolder]: 3229/7206 cut-off events. [2021-04-28 23:55:13,190 INFO L130 PetriNetUnfolder]: For 11666/29410 co-relation queries the response was YES. [2021-04-28 23:55:13,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31233 conditions, 7206 events. 3229/7206 cut-off events. For 11666/29410 co-relation queries the response was YES. Maximal size of possible extension queue 2159. Compared 83098 event pairs, 459 based on Foata normal form. 6/1983 useless extension candidates. Maximal degree in co-relation 31202. Up to 6440 conditions per place. [2021-04-28 23:55:13,383 INFO L146 LiptonReduction]: Number of co-enabled transitions 2488 [2021-04-28 23:55:13,420 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:13,420 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:13,421 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1560 [2021-04-28 23:55:13,422 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 115 transitions, 1032 flow [2021-04-28 23:55:13,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:13,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:13,423 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:13,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:55:13,423 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:13,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:13,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1479848145, now seen corresponding path program 1 times [2021-04-28 23:55:13,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:13,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607613600] [2021-04-28 23:55:13,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:13,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:13,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:55:13,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:13,487 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:13,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:13,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607613600] [2021-04-28 23:55:13,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:13,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:55:13,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992347289] [2021-04-28 23:55:13,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:55:13,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:13,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:55:13,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:55:13,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:13,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 115 transitions, 1032 flow. Second operand has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:13,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:13,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:13,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:15,388 INFO L129 PetriNetUnfolder]: 5475/11522 cut-off events. [2021-04-28 23:55:15,388 INFO L130 PetriNetUnfolder]: For 20549/55038 co-relation queries the response was YES. [2021-04-28 23:55:15,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49338 conditions, 11522 events. 5475/11522 cut-off events. For 20549/55038 co-relation queries the response was YES. Maximal size of possible extension queue 3147. Compared 134170 event pairs, 891 based on Foata normal form. 123/3172 useless extension candidates. Maximal degree in co-relation 49305. Up to 10541 conditions per place. [2021-04-28 23:55:15,497 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 10 selfloop transitions, 28 changer transitions 0/119 dead transitions. [2021-04-28 23:55:15,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 119 transitions, 1153 flow [2021-04-28 23:55:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:55:15,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:55:15,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2021-04-28 23:55:15,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6530303030303031 [2021-04-28 23:55:15,501 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 431 transitions. [2021-04-28 23:55:15,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 431 transitions. [2021-04-28 23:55:15,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:15,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 431 transitions. [2021-04-28 23:55:15,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:15,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:15,506 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:15,506 INFO L185 Difference]: Start difference. First operand has 81 places, 115 transitions, 1032 flow. Second operand 4 states and 431 transitions. [2021-04-28 23:55:15,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 119 transitions, 1153 flow [2021-04-28 23:55:18,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 119 transitions, 1024 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-28 23:55:18,210 INFO L241 Difference]: Finished difference. Result has 84 places, 117 transitions, 1054 flow [2021-04-28 23:55:18,210 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1054, PETRI_PLACES=84, PETRI_TRANSITIONS=117} [2021-04-28 23:55:18,211 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 6 predicate places. [2021-04-28 23:55:18,211 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:18,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 117 transitions, 1054 flow [2021-04-28 23:55:18,211 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 117 transitions, 1054 flow [2021-04-28 23:55:18,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 117 transitions, 1054 flow [2021-04-28 23:55:19,611 INFO L129 PetriNetUnfolder]: 5733/12278 cut-off events. [2021-04-28 23:55:19,611 INFO L130 PetriNetUnfolder]: For 11539/12368 co-relation queries the response was YES. [2021-04-28 23:55:19,670 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41506 conditions, 12278 events. 5733/12278 cut-off events. For 11539/12368 co-relation queries the response was YES. Maximal size of possible extension queue 3195. Compared 146517 event pairs, 891 based on Foata normal form. 6/3351 useless extension candidates. Maximal degree in co-relation 41472. Up to 5435 conditions per place. [2021-04-28 23:55:19,899 INFO L146 LiptonReduction]: Number of co-enabled transitions 2686 [2021-04-28 23:55:19,922 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:19,923 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:19,923 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1712 [2021-04-28 23:55:19,924 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 117 transitions, 1054 flow [2021-04-28 23:55:19,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.5) internal successors, (418), 4 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:19,925 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:19,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:19,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:55:19,926 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:19,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:19,927 INFO L82 PathProgramCache]: Analyzing trace with hash 796315121, now seen corresponding path program 1 times [2021-04-28 23:55:19,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:19,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588195131] [2021-04-28 23:55:19,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:19,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:19,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:19,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:19,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:19,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:55:19,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:55:19,991 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:55:19,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:55:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:20,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588195131] [2021-04-28 23:55:20,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:20,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:55:20,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135572787] [2021-04-28 23:55:20,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:55:20,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:20,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:55:20,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:55:20,008 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:20,009 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 117 transitions, 1054 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:20,009 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:20,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:20,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:22,068 INFO L129 PetriNetUnfolder]: 4650/10907 cut-off events. [2021-04-28 23:55:22,069 INFO L130 PetriNetUnfolder]: For 13222/56634 co-relation queries the response was YES. [2021-04-28 23:55:22,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46508 conditions, 10907 events. 4650/10907 cut-off events. For 13222/56634 co-relation queries the response was YES. Maximal size of possible extension queue 3138. Compared 137379 event pairs, 0 based on Foata normal form. 260/3404 useless extension candidates. Maximal degree in co-relation 46472. Up to 5157 conditions per place. [2021-04-28 23:55:22,165 INFO L132 encePairwiseOnDemand]: 147/165 looper letters, 4 selfloop transitions, 45 changer transitions 70/145 dead transitions. [2021-04-28 23:55:22,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 145 transitions, 1427 flow [2021-04-28 23:55:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 23:55:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 23:55:22,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1013 transitions. [2021-04-28 23:55:22,171 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6821548821548822 [2021-04-28 23:55:22,171 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1013 transitions. [2021-04-28 23:55:22,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1013 transitions. [2021-04-28 23:55:22,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:22,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1013 transitions. [2021-04-28 23:55:22,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.55555555555556) internal successors, (1013), 9 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:22,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:22,181 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:22,181 INFO L185 Difference]: Start difference. First operand has 84 places, 117 transitions, 1054 flow. Second operand 9 states and 1013 transitions. [2021-04-28 23:55:22,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 145 transitions, 1427 flow [2021-04-28 23:55:24,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 145 transitions, 1425 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 23:55:24,774 INFO L241 Difference]: Finished difference. Result has 95 places, 74 transitions, 731 flow [2021-04-28 23:55:24,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=731, PETRI_PLACES=95, PETRI_TRANSITIONS=74} [2021-04-28 23:55:24,775 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 17 predicate places. [2021-04-28 23:55:24,775 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:24,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 74 transitions, 731 flow [2021-04-28 23:55:24,775 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 74 transitions, 731 flow [2021-04-28 23:55:24,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 74 transitions, 731 flow [2021-04-28 23:55:24,834 INFO L129 PetriNetUnfolder]: 187/666 cut-off events. [2021-04-28 23:55:24,835 INFO L130 PetriNetUnfolder]: For 2856/3633 co-relation queries the response was YES. [2021-04-28 23:55:24,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 666 events. 187/666 cut-off events. For 2856/3633 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 5767 event pairs, 0 based on Foata normal form. 2/247 useless extension candidates. Maximal degree in co-relation 3376. Up to 349 conditions per place. [2021-04-28 23:55:24,845 INFO L146 LiptonReduction]: Number of co-enabled transitions 1070 [2021-04-28 23:55:24,852 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:24,852 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:24,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-04-28 23:55:24,854 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 74 transitions, 731 flow [2021-04-28 23:55:24,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:24,855 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:24,855 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:24,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:55:24,855 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:24,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:24,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1144104594, now seen corresponding path program 1 times [2021-04-28 23:55:24,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:24,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867565971] [2021-04-28 23:55:24,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:24,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:24,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:24,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:24,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:24,913 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:24,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:24,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:24,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867565971] [2021-04-28 23:55:24,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:24,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:55:24,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651665373] [2021-04-28 23:55:24,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:55:24,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:24,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:55:24,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:55:24,932 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:24,933 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 74 transitions, 731 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:24,933 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:24,934 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:24,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:25,139 INFO L129 PetriNetUnfolder]: 349/1093 cut-off events. [2021-04-28 23:55:25,139 INFO L130 PetriNetUnfolder]: For 5923/7181 co-relation queries the response was YES. [2021-04-28 23:55:25,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5549 conditions, 1093 events. 349/1093 cut-off events. For 5923/7181 co-relation queries the response was YES. Maximal size of possible extension queue 285. Compared 9987 event pairs, 1 based on Foata normal form. 33/438 useless extension candidates. Maximal degree in co-relation 5508. Up to 595 conditions per place. [2021-04-28 23:55:25,146 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 1 selfloop transitions, 7 changer transitions 36/80 dead transitions. [2021-04-28 23:55:25,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 80 transitions, 874 flow [2021-04-28 23:55:25,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:55:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:55:25,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 534 transitions. [2021-04-28 23:55:25,150 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6472727272727272 [2021-04-28 23:55:25,150 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 534 transitions. [2021-04-28 23:55:25,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 534 transitions. [2021-04-28 23:55:25,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:25,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 534 transitions. [2021-04-28 23:55:25,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,157 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,157 INFO L185 Difference]: Start difference. First operand has 87 places, 74 transitions, 731 flow. Second operand 5 states and 534 transitions. [2021-04-28 23:55:25,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 80 transitions, 874 flow [2021-04-28 23:55:25,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 80 transitions, 630 flow, removed 34 selfloop flow, removed 17 redundant places. [2021-04-28 23:55:25,201 INFO L241 Difference]: Finished difference. Result has 75 places, 44 transitions, 298 flow [2021-04-28 23:55:25,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=75, PETRI_TRANSITIONS=44} [2021-04-28 23:55:25,202 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2021-04-28 23:55:25,202 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:25,203 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 44 transitions, 298 flow [2021-04-28 23:55:25,203 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 44 transitions, 298 flow [2021-04-28 23:55:25,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 44 transitions, 298 flow [2021-04-28 23:55:25,229 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-28 23:55:25,230 INFO L130 PetriNetUnfolder]: For 879/880 co-relation queries the response was YES. [2021-04-28 23:55:25,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 787 conditions, 213 events. 81/213 cut-off events. For 879/880 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1194 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 759. Up to 109 conditions per place. [2021-04-28 23:55:25,233 INFO L146 LiptonReduction]: Number of co-enabled transitions 238 [2021-04-28 23:55:25,238 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:25,238 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:25,238 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-04-28 23:55:25,240 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 298 flow [2021-04-28 23:55:25,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:55:25,241 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:55:25,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:55:25,241 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:55:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:55:25,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1885771037, now seen corresponding path program 1 times [2021-04-28 23:55:25,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:55:25,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141148368] [2021-04-28 23:55:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:55:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:55:25,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:25,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:55:25,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:25,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:25,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:55:25,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:55:25,298 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:55:25,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:55:25,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:55:25,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141148368] [2021-04-28 23:55:25,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:55:25,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:55:25,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928947611] [2021-04-28 23:55:25,315 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:55:25,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:55:25,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:55:25,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:55:25,317 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 165 [2021-04-28 23:55:25,318 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,318 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:55:25,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 165 [2021-04-28 23:55:25,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:55:25,359 INFO L129 PetriNetUnfolder]: 81/186 cut-off events. [2021-04-28 23:55:25,359 INFO L130 PetriNetUnfolder]: For 1105/1107 co-relation queries the response was YES. [2021-04-28 23:55:25,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 186 events. 81/186 cut-off events. For 1105/1107 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 799 event pairs, 0 based on Foata normal form. 28/109 useless extension candidates. Maximal degree in co-relation 533. Up to 109 conditions per place. [2021-04-28 23:55:25,361 INFO L132 encePairwiseOnDemand]: 160/165 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-04-28 23:55:25,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 43 transitions, 294 flow [2021-04-28 23:55:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:55:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:55:25,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 626 transitions. [2021-04-28 23:55:25,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6323232323232323 [2021-04-28 23:55:25,364 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 626 transitions. [2021-04-28 23:55:25,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 626 transitions. [2021-04-28 23:55:25,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:55:25,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 626 transitions. [2021-04-28 23:55:25,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 104.33333333333333) internal successors, (626), 6 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,372 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 165.0) internal successors, (1155), 7 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,372 INFO L185 Difference]: Start difference. First operand has 63 places, 44 transitions, 298 flow. Second operand 6 states and 626 transitions. [2021-04-28 23:55:25,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 43 transitions, 294 flow [2021-04-28 23:55:25,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 212 flow, removed 1 selfloop flow, removed 20 redundant places. [2021-04-28 23:55:25,376 INFO L241 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2021-04-28 23:55:25,377 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2021-04-28 23:55:25,377 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -31 predicate places. [2021-04-28 23:55:25,377 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:55:25,377 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:55:25,378 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 0 transitions, 0 flow [2021-04-28 23:55:25,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:55:25,378 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:55:25,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:55:25,379 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:55:25,379 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:55:25,379 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:55:25,379 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:55:25,380 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-28 23:55:25,381 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:55:25,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.6) internal successors, (523), 5 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:55:25,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:55:25,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:55:25 BasicIcfg [2021-04-28 23:55:25,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:55:25,389 INFO L168 Benchmark]: Toolchain (without parser) took 35444.43 ms. Allocated memory was 302.0 MB in the beginning and 5.6 GB in the end (delta: 5.3 GB). Free memory was 277.2 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 492.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:55:25,390 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 60.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:55:25,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 873.09 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 281.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:55:25,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.53 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 279.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:55:25,391 INFO L168 Benchmark]: Boogie Preprocessor took 37.53 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 278.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:55:25,391 INFO L168 Benchmark]: RCFGBuilder took 697.73 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 254.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:55:25,392 INFO L168 Benchmark]: TraceAbstraction took 33712.24 ms. Allocated memory was 302.0 MB in the beginning and 5.6 GB in the end (delta: 5.3 GB). Free memory was 253.2 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 468.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:55:25,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory was 271.8 MB in the beginning and 271.7 MB in the end (delta: 60.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 873.09 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 281.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 68.53 ms. Allocated memory is still 302.0 MB. Free memory was 281.5 MB in the beginning and 279.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 37.53 ms. Allocated memory is still 302.0 MB. Free memory was 279.4 MB in the beginning and 278.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 697.73 ms. Allocated memory is still 302.0 MB. Free memory was 278.3 MB in the beginning and 254.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 33712.24 ms. Allocated memory was 302.0 MB in the beginning and 5.6 GB in the end (delta: 5.3 GB). Free memory was 253.2 MB in the beginning and 5.1 GB in the end (delta: -4.8 GB). Peak memory consumption was 468.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11810.2ms, 68 PlacesBefore, 78 PlacesAfterwards, 59 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1906, positive: 1706, positive conditional: 1706, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 959, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 959, positive: 872, positive conditional: 0, positive unconditional: 872, negative: 87, negative conditional: 0, negative unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 87, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 549, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 427, negative conditional: 0, negative unconditional: 427, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1906, positive: 816, positive conditional: 816, positive unconditional: 0, negative: 131, negative conditional: 131, negative unconditional: 0, unknown: 959, unknown conditional: 959, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.1ms, 79 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.4ms, 59 PlacesBefore, 59 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 1372 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 954, Positive cache size: 885, Positive conditional cache size: 885, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 68.9ms, 65 PlacesBefore, 65 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 44 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 45.9ms, 67 PlacesBefore, 67 PlacesAfterwards, 65 TransitionsBefore, 65 TransitionsAfterwards, 1610 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 44 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1721.9ms, 72 PlacesBefore, 72 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 2154 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1558.6ms, 81 PlacesBefore, 81 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 2488 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1711.2ms, 84 PlacesBefore, 84 PlacesAfterwards, 117 TransitionsBefore, 117 TransitionsAfterwards, 2686 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.7ms, 95 PlacesBefore, 87 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 1070 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.3ms, 75 PlacesBefore, 63 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 238 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.7ms, 47 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): 956, Positive cache size: 887, Positive conditional cache size: 887, Positive unconditional cache size: 0, Negative cache size: 69, Negative conditional cache size: 69, 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 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 33540.8ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 14579.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11945.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 98 SDtfs, 83 SDslu, 39 SDs, 0 SdLazy, 365 SolverSat, 154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 501.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 233.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1054occurred in iteration=8, InterpolantAutomatonStates: 54, 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: 33.1ms SsaConstructionTime, 356.4ms SatisfiabilityAnalysisTime, 850.8ms InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 722 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...