/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:54:41,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:54:41,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:54:41,817 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:54:41,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:54:41,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:54:41,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:54:41,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:54:41,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:54:41,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:54:41,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:54:41,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:54:41,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:54:41,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:54:41,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:54:41,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:54:41,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:54:41,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:54:41,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:54:41,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:54:41,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:54:41,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:54:41,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:54:41,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:54:41,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 14:54:41,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:54:41,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:54:41,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:54:41,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:54:41,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:54:41,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:54:41,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:54:41,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:54:41,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:54:41,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:54:41,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:54:41,878 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-RepeatedSemanticLbe.epf [2021-03-25 14:54:41,917 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:54:41,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:54:41,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:54:41,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:54:41,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:54:41,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:54:41,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:54:41,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:54:41,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:54:41,923 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:54:41,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:54:41,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:54:41,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:54:41,925 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:54:42,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:54:42,252 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:54:42,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:54:42,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:54:42,256 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:54:42,256 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-03-25 14:54:42,314 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8fe824a/1f4253a9b49d4782b4088ee92b535379/FLAG8f5690543 [2021-03-25 14:54:42,802 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:54:42,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.oepc.i [2021-03-25 14:54:42,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8fe824a/1f4253a9b49d4782b4088ee92b535379/FLAG8f5690543 [2021-03-25 14:54:43,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db8fe824a/1f4253a9b49d4782b4088ee92b535379 [2021-03-25 14:54:43,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:54:43,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:54:43,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:54:43,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:54:43,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:54:43,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b067d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43, skipping insertion in model container [2021-03-25 14:54:43,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:54:43,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:54:43,483 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/safe016_pso.oepc.i[950,963] [2021-03-25 14:54:43,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:54:43,665 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:54:43,676 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/safe016_pso.oepc.i[950,963] [2021-03-25 14:54:43,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:54:43,789 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:54:43,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43 WrapperNode [2021-03-25 14:54:43,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:54:43,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:54:43,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:54:43,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:54:43,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:54:43,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:54:43,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:54:43,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:54:43,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... [2021-03-25 14:54:43,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:54:43,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:54:43,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:54:43,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:54:43,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:54:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:54:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:54:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:54:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:54:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:54:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:54:43,968 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:54:43,968 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:54:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:54:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:54:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-03-25 14:54:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-03-25 14:54:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:54:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:54:43,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:54:43,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:54:43,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 14:54:44,291 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:54:44,292 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 14:54:44,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:54:44 BoogieIcfgContainer [2021-03-25 14:54:44,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:54:44,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:54:44,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:54:44,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:54:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:54:43" (1/3) ... [2021-03-25 14:54:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c335620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:54:44, skipping insertion in model container [2021-03-25 14:54:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:54:43" (2/3) ... [2021-03-25 14:54:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c335620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:54:44, skipping insertion in model container [2021-03-25 14:54:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:54:44" (3/3) ... [2021-03-25 14:54:44,298 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc.i [2021-03-25 14:54:44,302 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:54:44,306 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 14:54:44,306 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:54:44,331 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,332 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,333 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,333 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,335 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,336 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,337 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,338 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,338 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,338 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,339 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,339 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,339 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,340 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,340 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,342 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,343 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,343 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,346 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,346 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,347 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,347 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,348 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,348 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,350 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,350 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:54:44,351 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:54:44,367 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-25 14:54:44,385 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:54:44,385 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:54:44,385 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:54:44,385 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:54:44,385 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:54:44,385 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:54:44,385 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:54:44,386 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:54:44,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 85 transitions, 190 flow [2021-03-25 14:54:44,451 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-03-25 14:54:44,452 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:54:44,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 64 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-03-25 14:54:44,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 85 transitions, 190 flow [2021-03-25 14:54:44,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 67 transitions, 146 flow [2021-03-25 14:54:44,470 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:44,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 67 transitions, 146 flow [2021-03-25 14:54:44,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 67 transitions, 146 flow [2021-03-25 14:54:44,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 67 transitions, 146 flow [2021-03-25 14:54:44,522 INFO L129 PetriNetUnfolder]: 1/67 cut-off events. [2021-03-25 14:54:44,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:54:44,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 67 events. 1/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 55 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-03-25 14:54:44,525 INFO L142 LiptonReduction]: Number of co-enabled transitions 1250 [2021-03-25 14:54:46,203 INFO L154 LiptonReduction]: Checked pairs total: 1383 [2021-03-25 14:54:46,203 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-25 14:54:46,206 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1737 [2021-03-25 14:54:46,214 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-03-25 14:54:46,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:54:46,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:46,215 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:46,215 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:46,219 INFO L82 PathProgramCache]: Analyzing trace with hash -592752111, now seen corresponding path program 1 times [2021-03-25 14:54:46,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:46,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706936044] [2021-03-25 14:54:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:46,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:46,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:46,508 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:46,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:46,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:46,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706936044] [2021-03-25 14:54:46,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:46,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:54:46,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271815745] [2021-03-25 14:54:46,536 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:46,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:46,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:46,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:46,550 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 129 [2021-03-25 14:54:46,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:46,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:46,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 129 [2021-03-25 14:54:46,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:46,637 INFO L129 PetriNetUnfolder]: 117/286 cut-off events. [2021-03-25 14:54:46,637 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:54:46,639 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 286 events. 117/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1486 event pairs, 57 based on Foata normal form. 14/282 useless extension candidates. Maximal degree in co-relation 492. Up to 129 conditions per place. [2021-03-25 14:54:46,642 INFO L132 encePairwiseOnDemand]: 121/129 looper letters, 11 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2021-03-25 14:54:46,642 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 112 flow [2021-03-25 14:54:46,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:46,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:46,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2021-03-25 14:54:46,660 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8294573643410853 [2021-03-25 14:54:46,660 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 428 transitions. [2021-03-25 14:54:46,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 428 transitions. [2021-03-25 14:54:46,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:46,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 428 transitions. [2021-03-25 14:54:46,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:46,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:46,675 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:46,677 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 58 flow. Second operand 4 states and 428 transitions. [2021-03-25 14:54:46,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 112 flow [2021-03-25 14:54:46,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 108 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-25 14:54:46,681 INFO L241 Difference]: Finished difference. Result has 38 places, 28 transitions, 106 flow [2021-03-25 14:54:46,682 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=106, PETRI_PLACES=38, PETRI_TRANSITIONS=28} [2021-03-25 14:54:46,683 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 2 predicate places. [2021-03-25 14:54:46,683 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:46,683 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 28 transitions, 106 flow [2021-03-25 14:54:46,684 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 28 transitions, 106 flow [2021-03-25 14:54:46,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 28 transitions, 106 flow [2021-03-25 14:54:46,701 INFO L129 PetriNetUnfolder]: 99/246 cut-off events. [2021-03-25 14:54:46,701 INFO L130 PetriNetUnfolder]: For 51/65 co-relation queries the response was YES. [2021-03-25 14:54:46,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 246 events. 99/246 cut-off events. For 51/65 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1302 event pairs, 43 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 534. Up to 115 conditions per place. [2021-03-25 14:54:46,732 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-25 14:54:47,018 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:54:47,225 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-25 14:54:47,317 INFO L154 LiptonReduction]: Checked pairs total: 146 [2021-03-25 14:54:47,317 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:54:47,318 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 635 [2021-03-25 14:54:47,319 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 100 flow [2021-03-25 14:54:47,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:47,320 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:47,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:54:47,321 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:47,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:47,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1195447099, now seen corresponding path program 1 times [2021-03-25 14:54:47,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:47,323 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236040691] [2021-03-25 14:54:47,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:47,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:47,422 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:47,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:47,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236040691] [2021-03-25 14:54:47,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:47,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:54:47,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342577424] [2021-03-25 14:54:47,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:47,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:47,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:47,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:47,437 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:47,438 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 100 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) [2021-03-25 14:54:47,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:47,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:47,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:47,482 INFO L129 PetriNetUnfolder]: 98/250 cut-off events. [2021-03-25 14:54:47,483 INFO L130 PetriNetUnfolder]: For 142/383 co-relation queries the response was YES. [2021-03-25 14:54:47,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 250 events. 98/250 cut-off events. For 142/383 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1252 event pairs, 16 based on Foata normal form. 7/244 useless extension candidates. Maximal degree in co-relation 706. Up to 107 conditions per place. [2021-03-25 14:54:47,486 INFO L132 encePairwiseOnDemand]: 124/132 looper letters, 12 selfloop transitions, 11 changer transitions 0/35 dead transitions. [2021-03-25 14:54:47,486 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 196 flow [2021-03-25 14:54:47,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:47,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-03-25 14:54:47,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8143939393939394 [2021-03-25 14:54:47,488 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-03-25 14:54:47,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-03-25 14:54:47,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:47,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-03-25 14:54:47,490 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) [2021-03-25 14:54:47,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:47,493 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:47,493 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 100 flow. Second operand 4 states and 430 transitions. [2021-03-25 14:54:47,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 196 flow [2021-03-25 14:54:47,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:54:47,497 INFO L241 Difference]: Finished difference. Result has 40 places, 32 transitions, 193 flow [2021-03-25 14:54:47,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=193, PETRI_PLACES=40, PETRI_TRANSITIONS=32} [2021-03-25 14:54:47,497 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 4 predicate places. [2021-03-25 14:54:47,498 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:47,498 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 32 transitions, 193 flow [2021-03-25 14:54:47,499 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 32 transitions, 193 flow [2021-03-25 14:54:47,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 32 transitions, 193 flow [2021-03-25 14:54:47,515 INFO L129 PetriNetUnfolder]: 97/238 cut-off events. [2021-03-25 14:54:47,515 INFO L130 PetriNetUnfolder]: For 262/348 co-relation queries the response was YES. [2021-03-25 14:54:47,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 238 events. 97/238 cut-off events. For 262/348 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1191 event pairs, 33 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 764. Up to 105 conditions per place. [2021-03-25 14:54:47,518 INFO L142 LiptonReduction]: Number of co-enabled transitions 266 [2021-03-25 14:54:47,546 INFO L154 LiptonReduction]: Checked pairs total: 91 [2021-03-25 14:54:47,546 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:47,547 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-25 14:54:47,548 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 32 transitions, 193 flow [2021-03-25 14:54:47,548 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) [2021-03-25 14:54:47,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:47,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:47,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:54:47,548 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:47,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:47,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1648942006, now seen corresponding path program 1 times [2021-03-25 14:54:47,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:47,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047830533] [2021-03-25 14:54:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:47,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:47,606 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:47,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:47,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:47,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047830533] [2021-03-25 14:54:47,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:47,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:54:47,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762941482] [2021-03-25 14:54:47,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:47,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:47,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:47,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:47,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:47,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 32 transitions, 193 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) [2021-03-25 14:54:47,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:47,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:47,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:47,673 INFO L129 PetriNetUnfolder]: 80/213 cut-off events. [2021-03-25 14:54:47,673 INFO L130 PetriNetUnfolder]: For 323/646 co-relation queries the response was YES. [2021-03-25 14:54:47,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 213 events. 80/213 cut-off events. For 323/646 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1033 event pairs, 6 based on Foata normal form. 4/205 useless extension candidates. Maximal degree in co-relation 817. Up to 91 conditions per place. [2021-03-25 14:54:47,678 INFO L132 encePairwiseOnDemand]: 124/132 looper letters, 15 selfloop transitions, 18 changer transitions 0/45 dead transitions. [2021-03-25 14:54:47,678 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 45 transitions, 366 flow [2021-03-25 14:54:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:47,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:47,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 433 transitions. [2021-03-25 14:54:47,681 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8200757575757576 [2021-03-25 14:54:47,681 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 433 transitions. [2021-03-25 14:54:47,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 433 transitions. [2021-03-25 14:54:47,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:47,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 433 transitions. [2021-03-25 14:54:47,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:47,687 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:47,687 INFO L185 Difference]: Start difference. First operand has 40 places, 32 transitions, 193 flow. Second operand 4 states and 433 transitions. [2021-03-25 14:54:47,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 45 transitions, 366 flow [2021-03-25 14:54:47,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:54:47,693 INFO L241 Difference]: Finished difference. Result has 45 places, 42 transitions, 363 flow [2021-03-25 14:54:47,693 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=363, PETRI_PLACES=45, PETRI_TRANSITIONS=42} [2021-03-25 14:54:47,693 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2021-03-25 14:54:47,693 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:47,693 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 42 transitions, 363 flow [2021-03-25 14:54:47,694 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 42 transitions, 363 flow [2021-03-25 14:54:47,695 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 42 transitions, 363 flow [2021-03-25 14:54:47,709 INFO L129 PetriNetUnfolder]: 81/208 cut-off events. [2021-03-25 14:54:47,710 INFO L130 PetriNetUnfolder]: For 556/629 co-relation queries the response was YES. [2021-03-25 14:54:47,710 INFO L84 FinitePrefix]: Finished finitePrefix Result has 868 conditions, 208 events. 81/208 cut-off events. For 556/629 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1020 event pairs, 28 based on Foata normal form. 1/198 useless extension candidates. Maximal degree in co-relation 850. Up to 90 conditions per place. [2021-03-25 14:54:47,713 INFO L142 LiptonReduction]: Number of co-enabled transitions 324 [2021-03-25 14:54:47,736 INFO L154 LiptonReduction]: Checked pairs total: 280 [2021-03-25 14:54:47,736 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:47,736 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 43 [2021-03-25 14:54:47,741 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 42 transitions, 363 flow [2021-03-25 14:54:47,741 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) [2021-03-25 14:54:47,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:47,742 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:47,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:54:47,742 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:47,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:47,742 INFO L82 PathProgramCache]: Analyzing trace with hash 402087372, now seen corresponding path program 1 times [2021-03-25 14:54:47,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:47,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690212488] [2021-03-25 14:54:47,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:47,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:47,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:47,811 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:47,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:47,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:47,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690212488] [2021-03-25 14:54:47,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:47,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:47,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425737921] [2021-03-25 14:54:47,821 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:54:47,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:47,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:54:47,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:54:47,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:47,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 363 flow. Second operand has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:47,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:47,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:47,888 INFO L129 PetriNetUnfolder]: 80/242 cut-off events. [2021-03-25 14:54:47,888 INFO L130 PetriNetUnfolder]: For 720/1189 co-relation queries the response was YES. [2021-03-25 14:54:47,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 242 events. 80/242 cut-off events. For 720/1189 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1390 event pairs, 5 based on Foata normal form. 18/250 useless extension candidates. Maximal degree in co-relation 1122. Up to 94 conditions per place. [2021-03-25 14:54:47,891 INFO L132 encePairwiseOnDemand]: 124/132 looper letters, 18 selfloop transitions, 18 changer transitions 30/78 dead transitions. [2021-03-25 14:54:47,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 78 transitions, 888 flow [2021-03-25 14:54:47,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:54:47,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:54:47,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 541 transitions. [2021-03-25 14:54:47,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8196969696969697 [2021-03-25 14:54:47,895 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 541 transitions. [2021-03-25 14:54:47,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 541 transitions. [2021-03-25 14:54:47,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:47,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 541 transitions. [2021-03-25 14:54:47,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,899 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,899 INFO L185 Difference]: Start difference. First operand has 45 places, 42 transitions, 363 flow. Second operand 5 states and 541 transitions. [2021-03-25 14:54:47,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 78 transitions, 888 flow [2021-03-25 14:54:47,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 78 transitions, 888 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 14:54:47,906 INFO L241 Difference]: Finished difference. Result has 51 places, 43 transitions, 425 flow [2021-03-25 14:54:47,906 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=425, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2021-03-25 14:54:47,906 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 15 predicate places. [2021-03-25 14:54:47,906 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:47,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 43 transitions, 425 flow [2021-03-25 14:54:47,907 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 43 transitions, 425 flow [2021-03-25 14:54:47,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 43 transitions, 425 flow [2021-03-25 14:54:47,920 INFO L129 PetriNetUnfolder]: 41/133 cut-off events. [2021-03-25 14:54:47,920 INFO L130 PetriNetUnfolder]: For 552/621 co-relation queries the response was YES. [2021-03-25 14:54:47,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 637 conditions, 133 events. 41/133 cut-off events. For 552/621 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 607 event pairs, 11 based on Foata normal form. 2/127 useless extension candidates. Maximal degree in co-relation 615. Up to 55 conditions per place. [2021-03-25 14:54:47,922 INFO L142 LiptonReduction]: Number of co-enabled transitions 328 [2021-03-25 14:54:47,927 INFO L154 LiptonReduction]: Checked pairs total: 370 [2021-03-25 14:54:47,927 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:47,927 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 14:54:47,930 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 425 flow [2021-03-25 14:54:47,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:47,931 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:47,931 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:47,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:54:47,931 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:47,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:47,934 INFO L82 PathProgramCache]: Analyzing trace with hash -16236178, now seen corresponding path program 1 times [2021-03-25 14:54:47,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:47,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656458861] [2021-03-25 14:54:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:47,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:47,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:47,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:47,994 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:47,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:48,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656458861] [2021-03-25 14:54:48,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:48,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681805101] [2021-03-25 14:54:48,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:48,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:48,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:48,007 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:48,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 425 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) [2021-03-25 14:54:48,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:48,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,045 INFO L129 PetriNetUnfolder]: 35/140 cut-off events. [2021-03-25 14:54:48,045 INFO L130 PetriNetUnfolder]: For 604/837 co-relation queries the response was YES. [2021-03-25 14:54:48,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 140 events. 35/140 cut-off events. For 604/837 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 696 event pairs, 3 based on Foata normal form. 14/148 useless extension candidates. Maximal degree in co-relation 707. Up to 54 conditions per place. [2021-03-25 14:54:48,047 INFO L132 encePairwiseOnDemand]: 125/132 looper letters, 15 selfloop transitions, 19 changer transitions 5/51 dead transitions. [2021-03-25 14:54:48,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 598 flow [2021-03-25 14:54:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2021-03-25 14:54:48,048 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8125 [2021-03-25 14:54:48,049 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,049 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,052 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,052 INFO L185 Difference]: Start difference. First operand has 51 places, 43 transitions, 425 flow. Second operand 4 states and 429 transitions. [2021-03-25 14:54:48,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 598 flow [2021-03-25 14:54:48,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 51 transitions, 551 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-25 14:54:48,057 INFO L241 Difference]: Finished difference. Result has 54 places, 44 transitions, 483 flow [2021-03-25 14:54:48,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=483, PETRI_PLACES=54, PETRI_TRANSITIONS=44} [2021-03-25 14:54:48,057 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2021-03-25 14:54:48,057 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,058 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 44 transitions, 483 flow [2021-03-25 14:54:48,058 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 44 transitions, 483 flow [2021-03-25 14:54:48,058 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 44 transitions, 483 flow [2021-03-25 14:54:48,102 INFO L129 PetriNetUnfolder]: 27/121 cut-off events. [2021-03-25 14:54:48,102 INFO L130 PetriNetUnfolder]: For 597/665 co-relation queries the response was YES. [2021-03-25 14:54:48,102 INFO L84 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 121 events. 27/121 cut-off events. For 597/665 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 594 event pairs, 2 based on Foata normal form. 1/118 useless extension candidates. Maximal degree in co-relation 564. Up to 48 conditions per place. [2021-03-25 14:54:48,104 INFO L142 LiptonReduction]: Number of co-enabled transitions 324 [2021-03-25 14:54:48,108 INFO L154 LiptonReduction]: Checked pairs total: 362 [2021-03-25 14:54:48,108 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51 [2021-03-25 14:54:48,112 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 44 transitions, 483 flow [2021-03-25 14:54:48,113 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) [2021-03-25 14:54:48,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,113 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:54:48,113 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,114 INFO L82 PathProgramCache]: Analyzing trace with hash -947902052, now seen corresponding path program 1 times [2021-03-25 14:54:48,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536015769] [2021-03-25 14:54:48,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,161 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,164 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:48,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536015769] [2021-03-25 14:54:48,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:48,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14277643] [2021-03-25 14:54:48,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:54:48,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:54:48,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:54:48,176 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:48,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 44 transitions, 483 flow. Second operand has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:48,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,218 INFO L129 PetriNetUnfolder]: 28/150 cut-off events. [2021-03-25 14:54:48,218 INFO L130 PetriNetUnfolder]: For 874/1156 co-relation queries the response was YES. [2021-03-25 14:54:48,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 150 events. 28/150 cut-off events. For 874/1156 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 808 event pairs, 0 based on Foata normal form. 8/153 useless extension candidates. Maximal degree in co-relation 783. Up to 54 conditions per place. [2021-03-25 14:54:48,220 INFO L132 encePairwiseOnDemand]: 124/132 looper letters, 13 selfloop transitions, 14 changer transitions 23/62 dead transitions. [2021-03-25 14:54:48,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 813 flow [2021-03-25 14:54:48,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:54:48,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:54:48,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 540 transitions. [2021-03-25 14:54:48,222 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2021-03-25 14:54:48,222 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 540 transitions. [2021-03-25 14:54:48,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 540 transitions. [2021-03-25 14:54:48,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 540 transitions. [2021-03-25 14:54:48,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.0) internal successors, (540), 5 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,225 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,225 INFO L185 Difference]: Start difference. First operand has 54 places, 44 transitions, 483 flow. Second operand 5 states and 540 transitions. [2021-03-25 14:54:48,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 813 flow [2021-03-25 14:54:48,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 62 transitions, 803 flow, removed 5 selfloop flow, removed 0 redundant places. [2021-03-25 14:54:48,231 INFO L241 Difference]: Finished difference. Result has 59 places, 36 transitions, 398 flow [2021-03-25 14:54:48,231 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=479, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=398, PETRI_PLACES=59, PETRI_TRANSITIONS=36} [2021-03-25 14:54:48,231 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 23 predicate places. [2021-03-25 14:54:48,231 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,231 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 36 transitions, 398 flow [2021-03-25 14:54:48,232 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 36 transitions, 398 flow [2021-03-25 14:54:48,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 36 transitions, 398 flow [2021-03-25 14:54:48,241 INFO L129 PetriNetUnfolder]: 11/78 cut-off events. [2021-03-25 14:54:48,241 INFO L130 PetriNetUnfolder]: For 503/513 co-relation queries the response was YES. [2021-03-25 14:54:48,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 78 events. 11/78 cut-off events. For 503/513 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 316 event pairs, 1 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 390. Up to 24 conditions per place. [2021-03-25 14:54:48,243 INFO L142 LiptonReduction]: Number of co-enabled transitions 204 [2021-03-25 14:54:48,245 INFO L154 LiptonReduction]: Checked pairs total: 275 [2021-03-25 14:54:48,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-03-25 14:54:48,247 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 36 transitions, 398 flow [2021-03-25 14:54:48,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.2) internal successors, (521), 5 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,249 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,249 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:54:48,249 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,250 INFO L82 PathProgramCache]: Analyzing trace with hash 289755301, now seen corresponding path program 1 times [2021-03-25 14:54:48,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742684856] [2021-03-25 14:54:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:48,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,306 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-25 14:54:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-25 14:54:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742684856] [2021-03-25 14:54:48,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:48,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515832704] [2021-03-25 14:54:48,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:48,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:48,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:48,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 132 [2021-03-25 14:54:48,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 36 transitions, 398 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) [2021-03-25 14:54:48,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 132 [2021-03-25 14:54:48,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,354 INFO L129 PetriNetUnfolder]: 9/75 cut-off events. [2021-03-25 14:54:48,355 INFO L130 PetriNetUnfolder]: For 517/535 co-relation queries the response was YES. [2021-03-25 14:54:48,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 75 events. 9/75 cut-off events. For 517/535 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 293 event pairs, 2 based on Foata normal form. 6/80 useless extension candidates. Maximal degree in co-relation 415. Up to 24 conditions per place. [2021-03-25 14:54:48,355 INFO L132 encePairwiseOnDemand]: 125/132 looper letters, 8 selfloop transitions, 12 changer transitions 5/37 dead transitions. [2021-03-25 14:54:48,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 37 transitions, 468 flow [2021-03-25 14:54:48,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:48,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:48,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 429 transitions. [2021-03-25 14:54:48,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8125 [2021-03-25 14:54:48,357 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 429 transitions. [2021-03-25 14:54:48,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.25) internal successors, (429), 4 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,359 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,360 INFO L185 Difference]: Start difference. First operand has 59 places, 36 transitions, 398 flow. Second operand 4 states and 429 transitions. [2021-03-25 14:54:48,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 37 transitions, 468 flow [2021-03-25 14:54:48,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 37 transitions, 390 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 14:54:48,365 INFO L241 Difference]: Finished difference. Result has 55 places, 32 transitions, 302 flow [2021-03-25 14:54:48,366 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2021-03-25 14:54:48,366 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2021-03-25 14:54:48,366 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,366 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 32 transitions, 302 flow [2021-03-25 14:54:48,366 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 32 transitions, 302 flow [2021-03-25 14:54:48,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 32 transitions, 302 flow [2021-03-25 14:54:48,372 INFO L129 PetriNetUnfolder]: 7/62 cut-off events. [2021-03-25 14:54:48,372 INFO L130 PetriNetUnfolder]: For 356/366 co-relation queries the response was YES. [2021-03-25 14:54:48,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 62 events. 7/62 cut-off events. For 356/366 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 212 event pairs, 1 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 266. Up to 18 conditions per place. [2021-03-25 14:54:48,373 INFO L142 LiptonReduction]: Number of co-enabled transitions 166 [2021-03-25 14:54:48,375 INFO L154 LiptonReduction]: Checked pairs total: 191 [2021-03-25 14:54:48,375 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,375 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 14:54:48,378 INFO L480 AbstractCegarLoop]: Abstraction has has 55 places, 32 transitions, 302 flow [2021-03-25 14:54:48,379 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) [2021-03-25 14:54:48,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:54:48,379 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,379 INFO L82 PathProgramCache]: Analyzing trace with hash -697804178, now seen corresponding path program 2 times [2021-03-25 14:54:48,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11598867] [2021-03-25 14:54:48,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:48,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11598867] [2021-03-25 14:54:48,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:54:48,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115020368] [2021-03-25 14:54:48,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:54:48,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:54:48,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:54:48,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 132 [2021-03-25 14:54:48,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 32 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 132 [2021-03-25 14:54:48,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,474 INFO L129 PetriNetUnfolder]: 184/362 cut-off events. [2021-03-25 14:54:48,475 INFO L130 PetriNetUnfolder]: For 877/906 co-relation queries the response was YES. [2021-03-25 14:54:48,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1030 conditions, 362 events. 184/362 cut-off events. For 877/906 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 1889 event pairs, 92 based on Foata normal form. 3/316 useless extension candidates. Maximal degree in co-relation 1003. Up to 298 conditions per place. [2021-03-25 14:54:48,477 INFO L132 encePairwiseOnDemand]: 126/132 looper letters, 5 selfloop transitions, 5 changer transitions 0/36 dead transitions. [2021-03-25 14:54:48,477 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 36 transitions, 330 flow [2021-03-25 14:54:48,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:54:48,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:54:48,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2021-03-25 14:54:48,479 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8459595959595959 [2021-03-25 14:54:48,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 335 transitions. [2021-03-25 14:54:48,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 335 transitions. [2021-03-25 14:54:48,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 335 transitions. [2021-03-25 14:54:48,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,481 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 132.0) internal successors, (528), 4 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,481 INFO L185 Difference]: Start difference. First operand has 55 places, 32 transitions, 302 flow. Second operand 3 states and 335 transitions. [2021-03-25 14:54:48,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 36 transitions, 330 flow [2021-03-25 14:54:48,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 36 transitions, 287 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-03-25 14:54:48,486 INFO L241 Difference]: Finished difference. Result has 54 places, 36 transitions, 292 flow [2021-03-25 14:54:48,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=54, PETRI_TRANSITIONS=36} [2021-03-25 14:54:48,487 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2021-03-25 14:54:48,487 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,487 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 36 transitions, 292 flow [2021-03-25 14:54:48,487 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 36 transitions, 292 flow [2021-03-25 14:54:48,487 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 36 transitions, 292 flow [2021-03-25 14:54:48,513 INFO L129 PetriNetUnfolder]: 205/397 cut-off events. [2021-03-25 14:54:48,513 INFO L130 PetriNetUnfolder]: For 623/641 co-relation queries the response was YES. [2021-03-25 14:54:48,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1031 conditions, 397 events. 205/397 cut-off events. For 623/641 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 2165 event pairs, 102 based on Foata normal form. 2/347 useless extension candidates. Maximal degree in co-relation 1007. Up to 336 conditions per place. [2021-03-25 14:54:48,517 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-25 14:54:48,520 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:54:48,520 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,520 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-25 14:54:48,521 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 36 transitions, 292 flow [2021-03-25 14:54:48,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,521 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,521 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,521 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:54:48,522 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1722075718, now seen corresponding path program 1 times [2021-03-25 14:54:48,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833140882] [2021-03-25 14:54:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833140882] [2021-03-25 14:54:48,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:48,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931912986] [2021-03-25 14:54:48,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:48,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:48,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:48,571 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 132 [2021-03-25 14:54:48,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 36 transitions, 292 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,572 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,572 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 132 [2021-03-25 14:54:48,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,613 INFO L129 PetriNetUnfolder]: 127/276 cut-off events. [2021-03-25 14:54:48,614 INFO L130 PetriNetUnfolder]: For 594/794 co-relation queries the response was YES. [2021-03-25 14:54:48,615 INFO L84 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 276 events. 127/276 cut-off events. For 594/794 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1351 event pairs, 27 based on Foata normal form. 43/299 useless extension candidates. Maximal degree in co-relation 954. Up to 224 conditions per place. [2021-03-25 14:54:48,616 INFO L132 encePairwiseOnDemand]: 126/132 looper letters, 5 selfloop transitions, 9 changer transitions 0/40 dead transitions. [2021-03-25 14:54:48,616 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 40 transitions, 336 flow [2021-03-25 14:54:48,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:54:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:54:48,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 447 transitions. [2021-03-25 14:54:48,618 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8465909090909091 [2021-03-25 14:54:48,618 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 447 transitions. [2021-03-25 14:54:48,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 447 transitions. [2021-03-25 14:54:48,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 447 transitions. [2021-03-25 14:54:48,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.75) internal successors, (447), 4 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,620 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 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) [2021-03-25 14:54:48,620 INFO L185 Difference]: Start difference. First operand has 54 places, 36 transitions, 292 flow. Second operand 4 states and 447 transitions. [2021-03-25 14:54:48,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 40 transitions, 336 flow [2021-03-25 14:54:48,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 40 transitions, 331 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:54:48,624 INFO L241 Difference]: Finished difference. Result has 57 places, 40 transitions, 339 flow [2021-03-25 14:54:48,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=339, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2021-03-25 14:54:48,624 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 21 predicate places. [2021-03-25 14:54:48,624 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,624 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 40 transitions, 339 flow [2021-03-25 14:54:48,624 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 40 transitions, 339 flow [2021-03-25 14:54:48,625 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 40 transitions, 339 flow [2021-03-25 14:54:48,644 INFO L129 PetriNetUnfolder]: 134/292 cut-off events. [2021-03-25 14:54:48,645 INFO L130 PetriNetUnfolder]: For 632/751 co-relation queries the response was YES. [2021-03-25 14:54:48,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 292 events. 134/292 cut-off events. For 632/751 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1519 event pairs, 28 based on Foata normal form. 5/282 useless extension candidates. Maximal degree in co-relation 1044. Up to 238 conditions per place. [2021-03-25 14:54:48,648 INFO L142 LiptonReduction]: Number of co-enabled transitions 238 [2021-03-25 14:54:48,651 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:54:48,651 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,651 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 14:54:48,652 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 339 flow [2021-03-25 14:54:48,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,653 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,653 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:54:48,653 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1820310554, now seen corresponding path program 1 times [2021-03-25 14:54:48,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121068790] [2021-03-25 14:54:48,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:48,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121068790] [2021-03-25 14:54:48,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:54:48,703 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245512017] [2021-03-25 14:54:48,703 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:54:48,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:54:48,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:54:48,705 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 132 [2021-03-25 14:54:48,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 339 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 132 [2021-03-25 14:54:48,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,745 INFO L129 PetriNetUnfolder]: 77/180 cut-off events. [2021-03-25 14:54:48,745 INFO L130 PetriNetUnfolder]: For 408/705 co-relation queries the response was YES. [2021-03-25 14:54:48,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 180 events. 77/180 cut-off events. For 408/705 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 733 event pairs, 4 based on Foata normal form. 82/249 useless extension candidates. Maximal degree in co-relation 794. Up to 143 conditions per place. [2021-03-25 14:54:48,746 INFO L132 encePairwiseOnDemand]: 126/132 looper letters, 3 selfloop transitions, 13 changer transitions 6/44 dead transitions. [2021-03-25 14:54:48,746 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 44 transitions, 399 flow [2021-03-25 14:54:48,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:54:48,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:54:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-03-25 14:54:48,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8469696969696969 [2021-03-25 14:54:48,748 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,751 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 132.0) internal successors, (792), 6 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,751 INFO L185 Difference]: Start difference. First operand has 57 places, 40 transitions, 339 flow. Second operand 5 states and 559 transitions. [2021-03-25 14:54:48,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 44 transitions, 399 flow [2021-03-25 14:54:48,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 44 transitions, 381 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-25 14:54:48,754 INFO L241 Difference]: Finished difference. Result has 60 places, 38 transitions, 336 flow [2021-03-25 14:54:48,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=336, PETRI_PLACES=60, PETRI_TRANSITIONS=38} [2021-03-25 14:54:48,755 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 24 predicate places. [2021-03-25 14:54:48,755 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,756 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 38 transitions, 336 flow [2021-03-25 14:54:48,756 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 38 transitions, 336 flow [2021-03-25 14:54:48,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 38 transitions, 336 flow [2021-03-25 14:54:48,767 INFO L129 PetriNetUnfolder]: 44/122 cut-off events. [2021-03-25 14:54:48,767 INFO L130 PetriNetUnfolder]: For 316/352 co-relation queries the response was YES. [2021-03-25 14:54:48,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 122 events. 44/122 cut-off events. For 316/352 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 468 event pairs, 2 based on Foata normal form. 5/120 useless extension candidates. Maximal degree in co-relation 506. Up to 85 conditions per place. [2021-03-25 14:54:48,769 INFO L142 LiptonReduction]: Number of co-enabled transitions 172 [2021-03-25 14:54:48,846 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 14:54:48,847 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:54:48,847 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-03-25 14:54:48,847 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 37 transitions, 334 flow [2021-03-25 14:54:48,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,848 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,848 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,848 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 14:54:48,848 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,848 INFO L82 PathProgramCache]: Analyzing trace with hash -416689074, now seen corresponding path program 1 times [2021-03-25 14:54:48,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180980601] [2021-03-25 14:54:48,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:54:48,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180980601] [2021-03-25 14:54:48,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:54:48,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931663864] [2021-03-25 14:54:48,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:54:48,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:54:48,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:54:48,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 133 [2021-03-25 14:54:48,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 37 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 133 [2021-03-25 14:54:48,877 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:48,902 INFO L129 PetriNetUnfolder]: 45/117 cut-off events. [2021-03-25 14:54:48,902 INFO L130 PetriNetUnfolder]: For 631/733 co-relation queries the response was YES. [2021-03-25 14:54:48,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 117 events. 45/117 cut-off events. For 631/733 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 444 event pairs, 0 based on Foata normal form. 10/115 useless extension candidates. Maximal degree in co-relation 508. Up to 81 conditions per place. [2021-03-25 14:54:48,903 INFO L132 encePairwiseOnDemand]: 129/133 looper letters, 4 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2021-03-25 14:54:48,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 37 transitions, 352 flow [2021-03-25 14:54:48,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:54:48,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:54:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 559 transitions. [2021-03-25 14:54:48,904 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8406015037593985 [2021-03-25 14:54:48,905 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:48,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 559 transitions. [2021-03-25 14:54:48,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.8) internal successors, (559), 5 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,908 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,908 INFO L185 Difference]: Start difference. First operand has 59 places, 37 transitions, 334 flow. Second operand 5 states and 559 transitions. [2021-03-25 14:54:48,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 37 transitions, 352 flow [2021-03-25 14:54:48,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 37 transitions, 308 flow, removed 10 selfloop flow, removed 5 redundant places. [2021-03-25 14:54:48,911 INFO L241 Difference]: Finished difference. Result has 59 places, 37 transitions, 303 flow [2021-03-25 14:54:48,911 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=303, PETRI_PLACES=59, PETRI_TRANSITIONS=37} [2021-03-25 14:54:48,911 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 23 predicate places. [2021-03-25 14:54:48,911 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:48,912 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 37 transitions, 303 flow [2021-03-25 14:54:48,912 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 37 transitions, 303 flow [2021-03-25 14:54:48,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 37 transitions, 303 flow [2021-03-25 14:54:48,921 INFO L129 PetriNetUnfolder]: 49/125 cut-off events. [2021-03-25 14:54:48,921 INFO L130 PetriNetUnfolder]: For 380/407 co-relation queries the response was YES. [2021-03-25 14:54:48,922 INFO L84 FinitePrefix]: Finished finitePrefix Result has 425 conditions, 125 events. 49/125 cut-off events. For 380/407 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 492 event pairs, 0 based on Foata normal form. 7/123 useless extension candidates. Maximal degree in co-relation 400. Up to 50 conditions per place. [2021-03-25 14:54:48,923 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-25 14:54:48,925 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:54:48,925 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:48,925 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-25 14:54:48,925 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 37 transitions, 303 flow [2021-03-25 14:54:48,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,926 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:54:48,926 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:54:48,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 14:54:48,926 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:54:48,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:54:48,926 INFO L82 PathProgramCache]: Analyzing trace with hash 44139949, now seen corresponding path program 1 times [2021-03-25 14:54:48,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:54:48,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554578196] [2021-03-25 14:54:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:54:48,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:54:48,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:54:48,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:54:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 14:54:48,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554578196] [2021-03-25 14:54:48,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:54:48,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:54:48,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515289873] [2021-03-25 14:54:48,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:54:48,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:54:48,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:54:48,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:54:48,988 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 133 [2021-03-25 14:54:48,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 37 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:48,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:54:48,989 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 133 [2021-03-25 14:54:48,989 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:54:49,024 INFO L129 PetriNetUnfolder]: 45/111 cut-off events. [2021-03-25 14:54:49,025 INFO L130 PetriNetUnfolder]: For 495/698 co-relation queries the response was YES. [2021-03-25 14:54:49,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 453 conditions, 111 events. 45/111 cut-off events. For 495/698 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 408 event pairs, 0 based on Foata normal form. 56/155 useless extension candidates. Maximal degree in co-relation 426. Up to 43 conditions per place. [2021-03-25 14:54:49,025 INFO L132 encePairwiseOnDemand]: 127/133 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2021-03-25 14:54:49,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 36 transitions, 313 flow [2021-03-25 14:54:49,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:54:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:54:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 664 transitions. [2021-03-25 14:54:49,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8320802005012531 [2021-03-25 14:54:49,027 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 664 transitions. [2021-03-25 14:54:49,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 664 transitions. [2021-03-25 14:54:49,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:54:49,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 664 transitions. [2021-03-25 14:54:49,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.66666666666667) internal successors, (664), 6 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:49,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:49,031 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:49,031 INFO L185 Difference]: Start difference. First operand has 59 places, 37 transitions, 303 flow. Second operand 6 states and 664 transitions. [2021-03-25 14:54:49,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 36 transitions, 313 flow [2021-03-25 14:54:49,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 36 transitions, 282 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-25 14:54:49,045 INFO L241 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2021-03-25 14:54:49,045 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2021-03-25 14:54:49,045 INFO L343 CegarLoopForPetriNet]: 36 programPoint places, 19 predicate places. [2021-03-25 14:54:49,045 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:54:49,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 0 transitions, 0 flow [2021-03-25 14:54:49,046 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 0 transitions, 0 flow [2021-03-25 14:54:49,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 14:54:49,046 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 14:54:49,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:54:49,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-25 14:54:49,046 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 14:54:49,046 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:54:49,046 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:54:49,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 14:54:49,049 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 14:54:49,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 108.83333333333333) internal successors, (653), 6 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:54:49,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 14:54:49,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:54:49 BasicIcfg [2021-03-25 14:54:49,052 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:54:49,053 INFO L168 Benchmark]: Toolchain (without parser) took 5761.52 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 311.3 MB in the beginning and 395.5 MB in the end (delta: -84.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:54:49,053 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:54:49,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.43 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 311.5 MB in the end (delta: -435.3 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. [2021-03-25 14:54:49,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 348.1 MB. Free memory was 311.5 MB in the beginning and 308.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:54:49,054 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 307.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:54:49,054 INFO L168 Benchmark]: RCFGBuilder took 410.16 ms. Allocated memory is still 348.1 MB. Free memory was 307.3 MB in the beginning and 282.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:54:49,054 INFO L168 Benchmark]: TraceAbstraction took 4758.16 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 282.2 MB in the beginning and 395.5 MB in the end (delta: -113.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:54:49,056 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 348.1 MB. Free memory was 329.5 MB in the beginning and 329.4 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 498.43 ms. Allocated memory is still 348.1 MB. Free memory was 311.1 MB in the beginning and 311.5 MB in the end (delta: -435.3 kB). Peak memory consumption was 9.3 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 348.1 MB. Free memory was 311.5 MB in the beginning and 308.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.66 ms. Allocated memory is still 348.1 MB. Free memory was 308.4 MB in the beginning and 307.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 410.16 ms. Allocated memory is still 348.1 MB. Free memory was 307.3 MB in the beginning and 282.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4758.16 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 282.2 MB in the beginning and 395.5 MB in the end (delta: -113.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1709.9ms, 79 PlacesBefore, 36 PlacesAfterwards, 67 TransitionsBefore, 23 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1383 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 874, positive: 838, positive conditional: 0, positive unconditional: 838, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 735, positive: 712, positive conditional: 0, positive unconditional: 712, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 735, positive: 712, positive conditional: 0, positive unconditional: 712, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 735, positive: 704, positive conditional: 0, positive unconditional: 704, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 129, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 874, positive: 126, positive conditional: 0, positive unconditional: 126, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 735, unknown conditional: 0, unknown unconditional: 735] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 633.8ms, 38 PlacesBefore, 35 PlacesAfterwards, 28 TransitionsBefore, 25 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 146 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 84, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 21, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 21, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 21, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 84, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 21, unknown conditional: 0, unknown unconditional: 21] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.0ms, 40 PlacesBefore, 40 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 91 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 15, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 8, unknown conditional: 0, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.7ms, 45 PlacesBefore, 45 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 280 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 166, positive: 154, positive conditional: 0, positive unconditional: 154, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 12, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 166, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 12, unknown conditional: 0, unknown unconditional: 12] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.5ms, 51 PlacesBefore, 51 PlacesAfterwards, 43 TransitionsBefore, 43 TransitionsAfterwards, 328 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 239, positive: 224, positive conditional: 0, positive unconditional: 224, negative: 15, negative conditional: 0, negative unconditional: 15, 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: 239, positive: 224, positive conditional: 0, positive unconditional: 224, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 50.6ms, 54 PlacesBefore, 54 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 362 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 200, positive: 183, positive conditional: 0, positive unconditional: 183, negative: 17, negative conditional: 0, negative unconditional: 17, 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: 200, positive: 183, positive conditional: 0, positive unconditional: 183, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.0ms, 59 PlacesBefore, 59 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 275 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 15, negative conditional: 0, negative unconditional: 15, 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: 152, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.8ms, 55 PlacesBefore, 55 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 191 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 94, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 12, negative conditional: 0, negative unconditional: 12, 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: 94, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.9ms, 54 PlacesBefore, 54 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 210 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): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.7ms, 57 PlacesBefore, 57 PlacesAfterwards, 40 TransitionsBefore, 40 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): 70, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.8ms, 60 PlacesBefore, 59 PlacesAfterwards, 38 TransitionsBefore, 37 TransitionsAfterwards, 172 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2ms, 59 PlacesBefore, 59 PlacesAfterwards, 37 TransitionsBefore, 37 TransitionsAfterwards, 164 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): 59, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 55 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): 59, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4668.8ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 765.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1824.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 82 SDtfs, 47 SDslu, 49 SDs, 0 SdLazy, 174 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 134.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 121.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=483occurred in iteration=5, InterpolantAutomatonStates: 53, 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: 28.3ms SsaConstructionTime, 275.3ms SatisfiabilityAnalysisTime, 558.2ms InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 758 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...