/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:23:53,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:23:53,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:23:53,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:23:53,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:23:53,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:23:53,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:23:53,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:23:53,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:23:53,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:23:53,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:23:53,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:23:53,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:23:53,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:23:53,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:23:53,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:23:53,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:23:53,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:23:53,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:23:53,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:23:53,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:23:53,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:23:53,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:23:53,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:23:53,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:23:53,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:23:53,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:23:53,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:23:53,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:23:53,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:23:53,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:23:53,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:23:53,425 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:23:53,426 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:23:53,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:23:53,426 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:23:53,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:23:53,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:23:53,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:23:53,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:23:53,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:23:53,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:23:53,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:23:53,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:23:53,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:23:53,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:23:53,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:23:53,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:23:53,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:23:53,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:23:53,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:23:53,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:23:53,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:23:53,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:23:53,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:23:53,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:23:53,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:23:53,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:23:53,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:23:53,431 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:23:53,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:23:53,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:23:53,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:23:53,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:23:53,898 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:23:53,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-04-28 23:23:54,009 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a413e8a0/b60c0f75e9fd412faa5093496631c55b/FLAG60aa13742 [2021-04-28 23:23:54,817 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:23:54,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe001_tso.opt.i [2021-04-28 23:23:54,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a413e8a0/b60c0f75e9fd412faa5093496631c55b/FLAG60aa13742 [2021-04-28 23:23:55,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a413e8a0/b60c0f75e9fd412faa5093496631c55b [2021-04-28 23:23:55,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:23:55,134 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:23:55,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:23:55,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:23:55,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:23:55,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:55,147 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df5cbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55, skipping insertion in model container [2021-04-28 23:23:55,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:55,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:23:55,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:23:55,527 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/safe001_tso.opt.i[949,962] [2021-04-28 23:23:55,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:23:55,809 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:23:55,825 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/safe001_tso.opt.i[949,962] [2021-04-28 23:23:55,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:23:55,957 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:23:55,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55 WrapperNode [2021-04-28 23:23:55,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:23:55,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:23:55,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:23:55,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:23:55,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:55,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:23:56,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:23:56,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:23:56,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:23:56,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... [2021-04-28 23:23:56,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:23:56,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:23:56,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:23:56,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:23:56,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:23:56,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:23:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:23:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:23:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:23:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:23:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:23:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:23:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:23:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:23:56,168 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:23:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:23:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:23:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:23:56,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:23:56,170 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:23:56,573 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:23:56,573 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:23:56,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:23:56 BoogieIcfgContainer [2021-04-28 23:23:56,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:23:56,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:23:56,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:23:56,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:23:56,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:23:55" (1/3) ... [2021-04-28 23:23:56,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db66542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:23:56, skipping insertion in model container [2021-04-28 23:23:56,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:23:55" (2/3) ... [2021-04-28 23:23:56,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db66542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:23:56, skipping insertion in model container [2021-04-28 23:23:56,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:23:56" (3/3) ... [2021-04-28 23:23:56,586 INFO L111 eAbstractionObserver]: Analyzing ICFG safe001_tso.opt.i [2021-04-28 23:23:56,598 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:23:56,609 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:23:56,613 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:23:56,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,648 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,648 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,649 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,649 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,650 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,651 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,651 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,652 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,652 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,653 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,653 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,654 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,654 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,655 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,655 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,656 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,656 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,657 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,662 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,663 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,663 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,663 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,669 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,672 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,672 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:23:56,675 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:23:56,700 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:23:56,725 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:23:56,725 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:23:56,726 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:23:56,726 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:23:56,726 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:23:56,726 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:23:56,726 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:23:56,726 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:23:56,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:23:56,787 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-28 23:23:56,788 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:56,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:23:56,793 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-28 23:23:56,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:56,801 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:23:56,816 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:56,820 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:56,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-28 23:23:56,851 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-28 23:23:56,851 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:23:56,852 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:23:56,855 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:24:01,063 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:24:01,365 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:24:01,553 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:24:02,271 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:24:02,445 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:24:02,780 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:02,994 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:03,212 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:24:03,390 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:24:03,596 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:03,804 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:04,021 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:04,234 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:04,462 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:04,679 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:24:04,875 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:24:05,075 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:24:05,301 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:05,534 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:05,750 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:05,957 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:24:06,492 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:24:06,796 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:24:07,075 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:24:07,382 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:24:07,503 INFO L158 LiptonReduction]: Checked pairs total: 6642 [2021-04-28 23:24:07,503 INFO L160 LiptonReduction]: Total number of compositions: 94 [2021-04-28 23:24:07,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10708 [2021-04-28 23:24:07,531 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-28 23:24:07,531 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:24:07,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:07,532 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:07,533 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:07,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:07,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1747938615, now seen corresponding path program 1 times [2021-04-28 23:24:07,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:07,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857239202] [2021-04-28 23:24:07,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:07,830 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:24:07,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:24:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:07,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857239202] [2021-04-28 23:24:07,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:07,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:24:07,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145416670] [2021-04-28 23:24:07,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:24:07,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:07,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:24:07,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:24:07,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:24:07,888 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:07,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:07,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:24:07,891 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:08,195 INFO L129 PetriNetUnfolder]: 514/1289 cut-off events. [2021-04-28 23:24:08,195 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:24:08,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2134 conditions, 1289 events. 514/1289 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 241. Compared 10980 event pairs, 175 based on Foata normal form. 0/765 useless extension candidates. Maximal degree in co-relation 2089. Up to 423 conditions per place. [2021-04-28 23:24:08,210 INFO L132 encePairwiseOnDemand]: 147/168 looper letters, 7 selfloop transitions, 7 changer transitions 36/81 dead transitions. [2021-04-28 23:24:08,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 81 transitions, 245 flow [2021-04-28 23:24:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:24:08,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:24:08,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 351 transitions. [2021-04-28 23:24:08,233 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6964285714285714 [2021-04-28 23:24:08,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 351 transitions. [2021-04-28 23:24:08,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 351 transitions. [2021-04-28 23:24:08,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:08,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 351 transitions. [2021-04-28 23:24:08,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,256 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 351 transitions. [2021-04-28 23:24:08,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 81 transitions, 245 flow [2021-04-28 23:24:08,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 81 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:24:08,263 INFO L241 Difference]: Finished difference. Result has 81 places, 45 transitions, 138 flow [2021-04-28 23:24:08,266 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=81, PETRI_TRANSITIONS=45} [2021-04-28 23:24:08,267 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 1 predicate places. [2021-04-28 23:24:08,267 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:08,268 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:24:08,268 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 45 transitions, 138 flow [2021-04-28 23:24:08,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 45 transitions, 138 flow [2021-04-28 23:24:08,302 INFO L129 PetriNetUnfolder]: 88/312 cut-off events. [2021-04-28 23:24:08,302 INFO L130 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2021-04-28 23:24:08,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 312 events. 88/312 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2077 event pairs, 32 based on Foata normal form. 0/210 useless extension candidates. Maximal degree in co-relation 560. Up to 87 conditions per place. [2021-04-28 23:24:08,311 INFO L146 LiptonReduction]: Number of co-enabled transitions 1040 [2021-04-28 23:24:08,319 INFO L158 LiptonReduction]: Checked pairs total: 24 [2021-04-28 23:24:08,319 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:08,320 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-28 23:24:08,322 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 138 flow [2021-04-28 23:24:08,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,322 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:08,323 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:08,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:24:08,323 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:08,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1648479576, now seen corresponding path program 1 times [2021-04-28 23:24:08,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:08,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629650076] [2021-04-28 23:24:08,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:08,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:08,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:08,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:08,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629650076] [2021-04-28 23:24:08,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:08,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:24:08,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908671470] [2021-04-28 23:24:08,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:24:08,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:08,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:24:08,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:24:08,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 168 [2021-04-28 23:24:08,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:08,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 168 [2021-04-28 23:24:08,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:08,506 INFO L129 PetriNetUnfolder]: 74/269 cut-off events. [2021-04-28 23:24:08,506 INFO L130 PetriNetUnfolder]: For 68/101 co-relation queries the response was YES. [2021-04-28 23:24:08,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 269 events. 74/269 cut-off events. For 68/101 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1655 event pairs, 20 based on Foata normal form. 5/184 useless extension candidates. Maximal degree in co-relation 536. Up to 72 conditions per place. [2021-04-28 23:24:08,510 INFO L132 encePairwiseOnDemand]: 164/168 looper letters, 5 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2021-04-28 23:24:08,510 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 178 flow [2021-04-28 23:24:08,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:24:08,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:24:08,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2021-04-28 23:24:08,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7698412698412699 [2021-04-28 23:24:08,517 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2021-04-28 23:24:08,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2021-04-28 23:24:08,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:08,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2021-04-28 23:24:08,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,525 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,526 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,527 INFO L185 Difference]: Start difference. First operand has 50 places, 45 transitions, 138 flow. Second operand 3 states and 388 transitions. [2021-04-28 23:24:08,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 178 flow [2021-04-28 23:24:08,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:24:08,533 INFO L241 Difference]: Finished difference. Result has 51 places, 49 transitions, 165 flow [2021-04-28 23:24:08,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2021-04-28 23:24:08,534 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -29 predicate places. [2021-04-28 23:24:08,535 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:08,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 49 transitions, 165 flow [2021-04-28 23:24:08,537 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 49 transitions, 165 flow [2021-04-28 23:24:08,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 49 transitions, 165 flow [2021-04-28 23:24:08,571 INFO L129 PetriNetUnfolder]: 74/269 cut-off events. [2021-04-28 23:24:08,571 INFO L130 PetriNetUnfolder]: For 33/52 co-relation queries the response was YES. [2021-04-28 23:24:08,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 269 events. 74/269 cut-off events. For 33/52 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1697 event pairs, 14 based on Foata normal form. 1/181 useless extension candidates. Maximal degree in co-relation 474. Up to 72 conditions per place. [2021-04-28 23:24:08,580 INFO L146 LiptonReduction]: Number of co-enabled transitions 1168 [2021-04-28 23:24:08,595 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-28 23:24:08,595 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:08,596 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-04-28 23:24:08,600 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 165 flow [2021-04-28 23:24:08,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,601 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:08,601 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:08,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:24:08,602 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:08,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:08,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1662338250, now seen corresponding path program 1 times [2021-04-28 23:24:08,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:08,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546811855] [2021-04-28 23:24:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:08,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:08,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:08,748 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:24:08,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:24:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:08,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546811855] [2021-04-28 23:24:08,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:08,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:24:08,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364850821] [2021-04-28 23:24:08,760 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:24:08,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:08,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:24:08,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:24:08,763 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:24:08,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:08,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:24:08,765 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:08,816 INFO L129 PetriNetUnfolder]: 57/218 cut-off events. [2021-04-28 23:24:08,816 INFO L130 PetriNetUnfolder]: For 60/173 co-relation queries the response was YES. [2021-04-28 23:24:08,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 514 conditions, 218 events. 57/218 cut-off events. For 60/173 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1224 event pairs, 0 based on Foata normal form. 2/150 useless extension candidates. Maximal degree in co-relation 502. Up to 62 conditions per place. [2021-04-28 23:24:08,820 INFO L132 encePairwiseOnDemand]: 160/168 looper letters, 18 selfloop transitions, 10 changer transitions 0/59 dead transitions. [2021-04-28 23:24:08,820 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 59 transitions, 276 flow [2021-04-28 23:24:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:24:08,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:24:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 434 transitions. [2021-04-28 23:24:08,823 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2021-04-28 23:24:08,823 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 434 transitions. [2021-04-28 23:24:08,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 434 transitions. [2021-04-28 23:24:08,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:08,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 434 transitions. [2021-04-28 23:24:08,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,829 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 168.0) internal successors, (840), 5 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,830 INFO L185 Difference]: Start difference. First operand has 51 places, 49 transitions, 165 flow. Second operand 4 states and 434 transitions. [2021-04-28 23:24:08,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 59 transitions, 276 flow [2021-04-28 23:24:08,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:24:08,834 INFO L241 Difference]: Finished difference. Result has 56 places, 55 transitions, 246 flow [2021-04-28 23:24:08,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2021-04-28 23:24:08,835 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-04-28 23:24:08,835 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:08,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 55 transitions, 246 flow [2021-04-28 23:24:08,836 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 55 transitions, 246 flow [2021-04-28 23:24:08,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 55 transitions, 246 flow [2021-04-28 23:24:08,861 INFO L129 PetriNetUnfolder]: 57/212 cut-off events. [2021-04-28 23:24:08,861 INFO L130 PetriNetUnfolder]: For 148/164 co-relation queries the response was YES. [2021-04-28 23:24:08,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 212 events. 57/212 cut-off events. For 148/164 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1189 event pairs, 6 based on Foata normal form. 2/149 useless extension candidates. Maximal degree in co-relation 504. Up to 62 conditions per place. [2021-04-28 23:24:08,868 INFO L146 LiptonReduction]: Number of co-enabled transitions 1342 [2021-04-28 23:24:08,878 INFO L158 LiptonReduction]: Checked pairs total: 34 [2021-04-28 23:24:08,878 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:08,879 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-28 23:24:08,880 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 246 flow [2021-04-28 23:24:08,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,881 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:08,882 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:08,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:24:08,882 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:08,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:08,883 INFO L82 PathProgramCache]: Analyzing trace with hash 436742933, now seen corresponding path program 1 times [2021-04-28 23:24:08,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:08,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970398975] [2021-04-28 23:24:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:08,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:08,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:08,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:08,935 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:24:08,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:24:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:08,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970398975] [2021-04-28 23:24:08,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:08,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:24:08,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484284061] [2021-04-28 23:24:08,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:24:08,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:08,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:24:08,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:24:08,952 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:24:08,953 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:08,953 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:08,954 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:24:08,954 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:09,020 INFO L129 PetriNetUnfolder]: 41/200 cut-off events. [2021-04-28 23:24:09,021 INFO L130 PetriNetUnfolder]: For 159/210 co-relation queries the response was YES. [2021-04-28 23:24:09,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 200 events. 41/200 cut-off events. For 159/210 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1169 event pairs, 0 based on Foata normal form. 12/140 useless extension candidates. Maximal degree in co-relation 534. Up to 50 conditions per place. [2021-04-28 23:24:09,023 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 14 selfloop transitions, 8 changer transitions 24/76 dead transitions. [2021-04-28 23:24:09,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 76 transitions, 484 flow [2021-04-28 23:24:09,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:24:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:24:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 542 transitions. [2021-04-28 23:24:09,027 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6452380952380953 [2021-04-28 23:24:09,027 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 542 transitions. [2021-04-28 23:24:09,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 542 transitions. [2021-04-28 23:24:09,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:09,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 542 transitions. [2021-04-28 23:24:09,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 108.4) internal successors, (542), 5 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,033 INFO L185 Difference]: Start difference. First operand has 56 places, 55 transitions, 246 flow. Second operand 5 states and 542 transitions. [2021-04-28 23:24:09,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 76 transitions, 484 flow [2021-04-28 23:24:09,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 76 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:24:09,039 INFO L241 Difference]: Finished difference. Result has 61 places, 48 transitions, 220 flow [2021-04-28 23:24:09,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2021-04-28 23:24:09,040 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-04-28 23:24:09,040 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:09,040 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 48 transitions, 220 flow [2021-04-28 23:24:09,040 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 48 transitions, 220 flow [2021-04-28 23:24:09,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 220 flow [2021-04-28 23:24:09,055 INFO L129 PetriNetUnfolder]: 12/91 cut-off events. [2021-04-28 23:24:09,055 INFO L130 PetriNetUnfolder]: For 88/92 co-relation queries the response was YES. [2021-04-28 23:24:09,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 91 events. 12/91 cut-off events. For 88/92 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 410 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 220. Up to 20 conditions per place. [2021-04-28 23:24:09,058 INFO L146 LiptonReduction]: Number of co-enabled transitions 1038 [2021-04-28 23:24:09,065 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:24:09,065 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:09,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 23:24:09,067 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 220 flow [2021-04-28 23:24:09,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 104.8) internal successors, (524), 5 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:09,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:09,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:24:09,069 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:09,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1853575916, now seen corresponding path program 1 times [2021-04-28 23:24:09,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:09,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388748659] [2021-04-28 23:24:09,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:09,109 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:24:09,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:09,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388748659] [2021-04-28 23:24:09,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:09,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:24:09,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731566943] [2021-04-28 23:24:09,117 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:24:09,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:09,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:24:09,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:24:09,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 168 [2021-04-28 23:24:09,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:09,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 168 [2021-04-28 23:24:09,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:09,150 INFO L129 PetriNetUnfolder]: 10/84 cut-off events. [2021-04-28 23:24:09,151 INFO L130 PetriNetUnfolder]: For 94/98 co-relation queries the response was YES. [2021-04-28 23:24:09,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 84 events. 10/84 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 362 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 218. Up to 17 conditions per place. [2021-04-28 23:24:09,154 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 8 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2021-04-28 23:24:09,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 49 transitions, 250 flow [2021-04-28 23:24:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:24:09,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:24:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2021-04-28 23:24:09,157 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7718253968253969 [2021-04-28 23:24:09,157 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2021-04-28 23:24:09,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2021-04-28 23:24:09,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:09,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2021-04-28 23:24:09,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,163 INFO L185 Difference]: Start difference. First operand has 60 places, 48 transitions, 220 flow. Second operand 3 states and 389 transitions. [2021-04-28 23:24:09,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 49 transitions, 250 flow [2021-04-28 23:24:09,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 49 transitions, 228 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-28 23:24:09,168 INFO L241 Difference]: Finished difference. Result has 59 places, 48 transitions, 212 flow [2021-04-28 23:24:09,168 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2021-04-28 23:24:09,169 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-28 23:24:09,169 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:09,169 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 48 transitions, 212 flow [2021-04-28 23:24:09,169 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 48 transitions, 212 flow [2021-04-28 23:24:09,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 48 transitions, 212 flow [2021-04-28 23:24:09,181 INFO L129 PetriNetUnfolder]: 10/84 cut-off events. [2021-04-28 23:24:09,181 INFO L130 PetriNetUnfolder]: For 64/68 co-relation queries the response was YES. [2021-04-28 23:24:09,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 84 events. 10/84 cut-off events. For 64/68 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 374 event pairs, 1 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 192. Up to 17 conditions per place. [2021-04-28 23:24:09,184 INFO L146 LiptonReduction]: Number of co-enabled transitions 1038 [2021-04-28 23:24:09,191 INFO L158 LiptonReduction]: Checked pairs total: 27 [2021-04-28 23:24:09,192 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:09,192 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:24:09,198 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 212 flow [2021-04-28 23:24:09,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,199 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:09,200 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:09,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:24:09,200 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:09,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:09,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1853594175, now seen corresponding path program 1 times [2021-04-28 23:24:09,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:09,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71972402] [2021-04-28 23:24:09,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:09,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:09,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71972402] [2021-04-28 23:24:09,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:09,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:24:09,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357695454] [2021-04-28 23:24:09,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:24:09,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:09,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:24:09,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:24:09,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 168 [2021-04-28 23:24:09,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,288 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:09,288 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 168 [2021-04-28 23:24:09,288 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:09,307 INFO L129 PetriNetUnfolder]: 9/82 cut-off events. [2021-04-28 23:24:09,307 INFO L130 PetriNetUnfolder]: For 76/80 co-relation queries the response was YES. [2021-04-28 23:24:09,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 82 events. 9/82 cut-off events. For 76/80 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 353 event pairs, 0 based on Foata normal form. 1/50 useless extension candidates. Maximal degree in co-relation 191. Up to 17 conditions per place. [2021-04-28 23:24:09,308 INFO L132 encePairwiseOnDemand]: 165/168 looper letters, 1 selfloop transitions, 4 changer transitions 1/48 dead transitions. [2021-04-28 23:24:09,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 48 transitions, 222 flow [2021-04-28 23:24:09,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:24:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:24:09,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2021-04-28 23:24:09,311 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7341269841269841 [2021-04-28 23:24:09,311 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 370 transitions. [2021-04-28 23:24:09,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 370 transitions. [2021-04-28 23:24:09,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:09,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 370 transitions. [2021-04-28 23:24:09,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,317 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 168.0) internal successors, (672), 4 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,317 INFO L185 Difference]: Start difference. First operand has 59 places, 48 transitions, 212 flow. Second operand 3 states and 370 transitions. [2021-04-28 23:24:09,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 48 transitions, 222 flow [2021-04-28 23:24:09,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 48 transitions, 209 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-28 23:24:09,324 INFO L241 Difference]: Finished difference. Result has 59 places, 47 transitions, 211 flow [2021-04-28 23:24:09,324 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2021-04-28 23:24:09,325 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-28 23:24:09,325 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:09,325 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 47 transitions, 211 flow [2021-04-28 23:24:09,326 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 47 transitions, 211 flow [2021-04-28 23:24:09,326 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 47 transitions, 211 flow [2021-04-28 23:24:09,339 INFO L129 PetriNetUnfolder]: 9/84 cut-off events. [2021-04-28 23:24:09,339 INFO L130 PetriNetUnfolder]: For 51/55 co-relation queries the response was YES. [2021-04-28 23:24:09,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 84 events. 9/84 cut-off events. For 51/55 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 372 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 184. Up to 17 conditions per place. [2021-04-28 23:24:09,342 INFO L146 LiptonReduction]: Number of co-enabled transitions 978 [2021-04-28 23:24:09,349 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-28 23:24:09,349 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:09,350 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-28 23:24:09,356 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 47 transitions, 211 flow [2021-04-28 23:24:09,357 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,357 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:09,357 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:09,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:24:09,358 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:09,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1629899560, now seen corresponding path program 1 times [2021-04-28 23:24:09,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:09,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018423307] [2021-04-28 23:24:09,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:09,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:24:09,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,442 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:24:09,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:24:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:09,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018423307] [2021-04-28 23:24:09,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:09,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:24:09,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860699196] [2021-04-28 23:24:09,453 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:24:09,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:09,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:24:09,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:24:09,456 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:24:09,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 47 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:09,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:24:09,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:09,538 INFO L129 PetriNetUnfolder]: 8/101 cut-off events. [2021-04-28 23:24:09,538 INFO L130 PetriNetUnfolder]: For 80/94 co-relation queries the response was YES. [2021-04-28 23:24:09,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 101 events. 8/101 cut-off events. For 80/94 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 514 event pairs, 0 based on Foata normal form. 5/63 useless extension candidates. Maximal degree in co-relation 253. Up to 20 conditions per place. [2021-04-28 23:24:09,540 INFO L132 encePairwiseOnDemand]: 161/168 looper letters, 5 selfloop transitions, 10 changer transitions 10/54 dead transitions. [2021-04-28 23:24:09,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 321 flow [2021-04-28 23:24:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:24:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:24:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2021-04-28 23:24:09,545 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2021-04-28 23:24:09,545 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 642 transitions. [2021-04-28 23:24:09,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 642 transitions. [2021-04-28 23:24:09,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:09,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 642 transitions. [2021-04-28 23:24:09,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,551 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 168.0) internal successors, (1176), 7 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,551 INFO L185 Difference]: Start difference. First operand has 58 places, 47 transitions, 211 flow. Second operand 6 states and 642 transitions. [2021-04-28 23:24:09,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 321 flow [2021-04-28 23:24:09,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 54 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:24:09,555 INFO L241 Difference]: Finished difference. Result has 62 places, 44 transitions, 203 flow [2021-04-28 23:24:09,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2021-04-28 23:24:09,556 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-04-28 23:24:09,556 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:09,556 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 44 transitions, 203 flow [2021-04-28 23:24:09,557 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 44 transitions, 203 flow [2021-04-28 23:24:09,557 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 44 transitions, 203 flow [2021-04-28 23:24:09,567 INFO L129 PetriNetUnfolder]: 5/75 cut-off events. [2021-04-28 23:24:09,568 INFO L130 PetriNetUnfolder]: For 62/70 co-relation queries the response was YES. [2021-04-28 23:24:09,568 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 75 events. 5/75 cut-off events. For 62/70 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 318 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 167. Up to 14 conditions per place. [2021-04-28 23:24:09,571 INFO L146 LiptonReduction]: Number of co-enabled transitions 876 [2021-04-28 23:24:09,578 INFO L158 LiptonReduction]: Checked pairs total: 23 [2021-04-28 23:24:09,578 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:09,579 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:24:09,580 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 203 flow [2021-04-28 23:24:09,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:09,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:09,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:24:09,583 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:09,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1435738846, now seen corresponding path program 2 times [2021-04-28 23:24:09,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:09,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326081650] [2021-04-28 23:24:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:09,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,651 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-28 23:24:09,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 23:24:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:09,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326081650] [2021-04-28 23:24:09,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:09,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:24:09,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158054050] [2021-04-28 23:24:09,667 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:24:09,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:09,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:24:09,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:24:09,672 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 168 [2021-04-28 23:24:09,673 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,674 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:09,674 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 168 [2021-04-28 23:24:09,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:09,708 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 23:24:09,708 INFO L130 PetriNetUnfolder]: For 96/114 co-relation queries the response was YES. [2021-04-28 23:24:09,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 78 events. 4/78 cut-off events. For 96/114 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 348 event pairs, 0 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 193. Up to 15 conditions per place. [2021-04-28 23:24:09,709 INFO L132 encePairwiseOnDemand]: 163/168 looper letters, 4 selfloop transitions, 4 changer transitions 23/46 dead transitions. [2021-04-28 23:24:09,709 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 46 transitions, 254 flow [2021-04-28 23:24:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:24:09,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:24:09,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 532 transitions. [2021-04-28 23:24:09,714 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2021-04-28 23:24:09,714 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 532 transitions. [2021-04-28 23:24:09,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 532 transitions. [2021-04-28 23:24:09,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:09,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 532 transitions. [2021-04-28 23:24:09,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 106.4) internal successors, (532), 5 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,720 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,721 INFO L185 Difference]: Start difference. First operand has 60 places, 44 transitions, 203 flow. Second operand 5 states and 532 transitions. [2021-04-28 23:24:09,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 46 transitions, 254 flow [2021-04-28 23:24:09,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 46 transitions, 228 flow, removed 3 selfloop flow, removed 5 redundant places. [2021-04-28 23:24:09,724 INFO L241 Difference]: Finished difference. Result has 60 places, 23 transitions, 114 flow [2021-04-28 23:24:09,724 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=114, PETRI_PLACES=60, PETRI_TRANSITIONS=23} [2021-04-28 23:24:09,724 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-04-28 23:24:09,724 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:09,725 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 23 transitions, 114 flow [2021-04-28 23:24:09,725 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 23 transitions, 114 flow [2021-04-28 23:24:09,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 23 transitions, 114 flow [2021-04-28 23:24:09,733 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-04-28 23:24:09,734 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-04-28 23:24:09,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 27 events. 0/27 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-04-28 23:24:09,735 INFO L146 LiptonReduction]: Number of co-enabled transitions 152 [2021-04-28 23:24:09,739 INFO L158 LiptonReduction]: Checked pairs total: 15 [2021-04-28 23:24:09,739 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:09,739 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-28 23:24:09,743 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 23 transitions, 114 flow [2021-04-28 23:24:09,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.4) internal successors, (527), 5 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,744 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:09,745 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:09,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:24:09,745 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:09,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1398748000, now seen corresponding path program 3 times [2021-04-28 23:24:09,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:09,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207011669] [2021-04-28 23:24:09,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:09,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:09,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:09,853 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-28 23:24:09,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:24:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:09,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207011669] [2021-04-28 23:24:09,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:09,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:24:09,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513285444] [2021-04-28 23:24:09,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:24:09,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:09,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:24:09,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:24:09,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 168 [2021-04-28 23:24:09,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 23 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:09,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:09,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 168 [2021-04-28 23:24:09,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:10,015 INFO L129 PetriNetUnfolder]: 369/646 cut-off events. [2021-04-28 23:24:10,015 INFO L130 PetriNetUnfolder]: For 599/696 co-relation queries the response was YES. [2021-04-28 23:24:10,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 646 events. 369/646 cut-off events. For 599/696 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 3653 event pairs, 171 based on Foata normal form. 15/267 useless extension candidates. Maximal degree in co-relation 1438. Up to 475 conditions per place. [2021-04-28 23:24:10,019 INFO L132 encePairwiseOnDemand]: 156/168 looper letters, 11 selfloop transitions, 7 changer transitions 22/51 dead transitions. [2021-04-28 23:24:10,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 51 transitions, 250 flow [2021-04-28 23:24:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:24:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:24:10,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 567 transitions. [2021-04-28 23:24:10,023 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675 [2021-04-28 23:24:10,024 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 567 transitions. [2021-04-28 23:24:10,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 567 transitions. [2021-04-28 23:24:10,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:10,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 567 transitions. [2021-04-28 23:24:10,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 113.4) internal successors, (567), 5 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,030 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,030 INFO L185 Difference]: Start difference. First operand has 46 places, 23 transitions, 114 flow. Second operand 5 states and 567 transitions. [2021-04-28 23:24:10,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 51 transitions, 250 flow [2021-04-28 23:24:10,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 51 transitions, 204 flow, removed 7 selfloop flow, removed 12 redundant places. [2021-04-28 23:24:10,034 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 143 flow [2021-04-28 23:24:10,035 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=168, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-04-28 23:24:10,035 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -39 predicate places. [2021-04-28 23:24:10,035 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:10,035 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 143 flow [2021-04-28 23:24:10,036 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 143 flow [2021-04-28 23:24:10,036 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 29 transitions, 143 flow [2021-04-28 23:24:10,076 INFO L129 PetriNetUnfolder]: 252/456 cut-off events. [2021-04-28 23:24:10,077 INFO L130 PetriNetUnfolder]: For 152/251 co-relation queries the response was YES. [2021-04-28 23:24:10,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 456 events. 252/456 cut-off events. For 152/251 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 2553 event pairs, 144 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 1311. Up to 418 conditions per place. [2021-04-28 23:24:10,081 INFO L146 LiptonReduction]: Number of co-enabled transitions 88 [2021-04-28 23:24:10,289 INFO L158 LiptonReduction]: Checked pairs total: 61 [2021-04-28 23:24:10,289 INFO L160 LiptonReduction]: Total number of compositions: 7 [2021-04-28 23:24:10,290 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 255 [2021-04-28 23:24:10,292 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 164 flow [2021-04-28 23:24:10,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:10,293 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:10,294 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:24:10,294 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash -454378487, now seen corresponding path program 1 times [2021-04-28 23:24:10,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:10,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65068030] [2021-04-28 23:24:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:10,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:10,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:10,374 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:24:10,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:24:10,390 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:24:10,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:24:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:10,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65068030] [2021-04-28 23:24:10,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:10,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:24:10,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065486425] [2021-04-28 23:24:10,404 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:24:10,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:24:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:24:10,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2021-04-28 23:24:10,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,408 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:10,408 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2021-04-28 23:24:10,408 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:10,569 INFO L129 PetriNetUnfolder]: 207/488 cut-off events. [2021-04-28 23:24:10,570 INFO L130 PetriNetUnfolder]: For 335/434 co-relation queries the response was YES. [2021-04-28 23:24:10,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 488 events. 207/488 cut-off events. For 335/434 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 3221 event pairs, 27 based on Foata normal form. 24/250 useless extension candidates. Maximal degree in co-relation 1988. Up to 442 conditions per place. [2021-04-28 23:24:10,572 INFO L132 encePairwiseOnDemand]: 160/175 looper letters, 5 selfloop transitions, 13 changer transitions 30/58 dead transitions. [2021-04-28 23:24:10,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 58 transitions, 440 flow [2021-04-28 23:24:10,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:24:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:24:10,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2021-04-28 23:24:10,577 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6514285714285715 [2021-04-28 23:24:10,577 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 684 transitions. [2021-04-28 23:24:10,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 684 transitions. [2021-04-28 23:24:10,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:10,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 684 transitions. [2021-04-28 23:24:10,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,584 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 164 flow. Second operand 6 states and 684 transitions. [2021-04-28 23:24:10,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 58 transitions, 440 flow [2021-04-28 23:24:10,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 431 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:24:10,594 INFO L241 Difference]: Finished difference. Result has 46 places, 28 transitions, 203 flow [2021-04-28 23:24:10,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=203, PETRI_PLACES=46, PETRI_TRANSITIONS=28} [2021-04-28 23:24:10,595 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -34 predicate places. [2021-04-28 23:24:10,596 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:10,596 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 28 transitions, 203 flow [2021-04-28 23:24:10,596 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 28 transitions, 203 flow [2021-04-28 23:24:10,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 28 transitions, 203 flow [2021-04-28 23:24:10,618 INFO L129 PetriNetUnfolder]: 36/179 cut-off events. [2021-04-28 23:24:10,619 INFO L130 PetriNetUnfolder]: For 273/303 co-relation queries the response was YES. [2021-04-28 23:24:10,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 179 events. 36/179 cut-off events. For 273/303 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1233 event pairs, 27 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 821. Up to 142 conditions per place. [2021-04-28 23:24:10,621 INFO L146 LiptonReduction]: Number of co-enabled transitions 60 [2021-04-28 23:24:10,629 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:24:10,629 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:10,629 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-04-28 23:24:10,630 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 203 flow [2021-04-28 23:24:10,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:24:10,631 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:24:10,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 23:24:10,633 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:24:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:24:10,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1022191120, now seen corresponding path program 1 times [2021-04-28 23:24:10,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:24:10,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157675841] [2021-04-28 23:24:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:24:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:24:10,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:10,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:10,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:24:10,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:24:10,703 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:24:10,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:24:10,712 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:24:10,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:24:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:24:10,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157675841] [2021-04-28 23:24:10,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:24:10,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:24:10,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808956457] [2021-04-28 23:24:10,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:24:10,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:24:10,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:24:10,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:24:10,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 175 [2021-04-28 23:24:10,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:24:10,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 175 [2021-04-28 23:24:10,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:24:10,824 INFO L129 PetriNetUnfolder]: 9/134 cut-off events. [2021-04-28 23:24:10,824 INFO L130 PetriNetUnfolder]: For 259/298 co-relation queries the response was YES. [2021-04-28 23:24:10,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 717 conditions, 134 events. 9/134 cut-off events. For 259/298 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 1004 event pairs, 0 based on Foata normal form. 13/92 useless extension candidates. Maximal degree in co-relation 707. Up to 115 conditions per place. [2021-04-28 23:24:10,825 INFO L132 encePairwiseOnDemand]: 160/175 looper letters, 0 selfloop transitions, 0 changer transitions 31/31 dead transitions. [2021-04-28 23:24:10,825 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 31 transitions, 275 flow [2021-04-28 23:24:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:24:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:24:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 764 transitions. [2021-04-28 23:24:10,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6236734693877551 [2021-04-28 23:24:10,829 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 764 transitions. [2021-04-28 23:24:10,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 764 transitions. [2021-04-28 23:24:10,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:24:10,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 764 transitions. [2021-04-28 23:24:10,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.14285714285714) internal successors, (764), 7 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,838 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 175.0) internal successors, (1400), 8 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,838 INFO L185 Difference]: Start difference. First operand has 42 places, 28 transitions, 203 flow. Second operand 7 states and 764 transitions. [2021-04-28 23:24:10,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 31 transitions, 275 flow [2021-04-28 23:24:10,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 211 flow, removed 24 selfloop flow, removed 5 redundant places. [2021-04-28 23:24:10,841 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-04-28 23:24:10,841 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-04-28 23:24:10,841 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -38 predicate places. [2021-04-28 23:24:10,842 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:24:10,842 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:24:10,842 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:24:10,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:24:10,843 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:24:10,843 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:24:10,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:24:10,843 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:24:10,843 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:24:10,843 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:24:10,843 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-28 23:24:10,844 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:24:10,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:24:10,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 23:24:10,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:24:10 BasicIcfg [2021-04-28 23:24:10,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:24:10,853 INFO L168 Benchmark]: Toolchain (without parser) took 15779.82 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 273.3 MB in the beginning and 249.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 195.5 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,854 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 304.1 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 59.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:24:10,854 INFO L168 Benchmark]: CACSL2BoogieTranslator took 819.91 ms. Allocated memory is still 304.1 MB. Free memory was 270.1 MB in the beginning and 264.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 304.1 MB. Free memory was 264.7 MB in the beginning and 262.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,855 INFO L168 Benchmark]: Boogie Preprocessor took 30.06 ms. Allocated memory is still 304.1 MB. Free memory was 262.8 MB in the beginning and 261.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,856 INFO L168 Benchmark]: RCFGBuilder took 535.80 ms. Allocated memory is still 304.1 MB. Free memory was 261.5 MB in the beginning and 281.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,856 INFO L168 Benchmark]: TraceAbstraction took 14273.93 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 280.3 MB in the beginning and 249.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 201.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:24:10,864 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 304.1 MB. Free memory was 272.5 MB in the beginning and 272.5 MB in the end (delta: 59.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 819.91 ms. Allocated memory is still 304.1 MB. Free memory was 270.1 MB in the beginning and 264.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.80 ms. Allocated memory is still 304.1 MB. Free memory was 264.7 MB in the beginning and 262.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.06 ms. Allocated memory is still 304.1 MB. Free memory was 262.8 MB in the beginning and 261.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 535.80 ms. Allocated memory is still 304.1 MB. Free memory was 261.5 MB in the beginning and 281.4 MB in the end (delta: -19.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14273.93 ms. Allocated memory was 304.1 MB in the beginning and 476.1 MB in the end (delta: 172.0 MB). Free memory was 280.3 MB in the beginning and 249.6 MB in the end (delta: 30.7 MB). Peak memory consumption was 201.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10683.2ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 94 TotalNumberOfCompositions, 6642 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1549, positive: 1349, positive conditional: 1349, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 860, positive: 810, positive conditional: 0, positive unconditional: 810, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 860, positive: 810, positive conditional: 0, positive unconditional: 810, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 860, positive: 788, positive conditional: 0, positive unconditional: 788, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 355, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1549, positive: 539, positive conditional: 539, positive unconditional: 0, negative: 150, negative conditional: 150, negative unconditional: 0, unknown: 860, unknown conditional: 860, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 850, Positive cache size: 800, Positive conditional cache size: 800, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.2ms, 81 PlacesBefore, 50 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 2, 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: 6, positive: 6, positive conditional: 2, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 856, Positive cache size: 806, Positive conditional cache size: 806, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.9ms, 51 PlacesBefore, 51 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 859, Positive cache size: 808, Positive conditional cache size: 808, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 1342 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 34 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 861, Positive cache size: 810, Positive conditional cache size: 810, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 61 PlacesBefore, 60 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 862, Positive cache size: 811, Positive conditional cache size: 811, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.3ms, 59 PlacesBefore, 59 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1038 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 864, Positive cache size: 813, Positive conditional cache size: 813, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.9ms, 59 PlacesBefore, 58 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 978 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 865, Positive cache size: 814, Positive conditional cache size: 814, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.9ms, 62 PlacesBefore, 60 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 876 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 3, positive: 3, positive conditional: 2, positive unconditional: 1, 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: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 5, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 868, Positive cache size: 817, Positive conditional cache size: 817, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.1ms, 60 PlacesBefore, 46 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 15 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 869, Positive cache size: 818, Positive conditional cache size: 818, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 253.6ms, 41 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 30 TransitionsAfterwards, 88 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 61 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 61, positive conditional: 61, 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: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 22, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 29, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 29, unknown conditional: 29, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.1ms, 46 PlacesBefore, 42 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 60 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): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 42 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): 898, Positive cache size: 847, Positive conditional cache size: 847, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14126.5ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1360.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10789.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 55 SDslu, 31 SDs, 0 SdLazy, 280 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 298.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 158.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=3, InterpolantAutomatonStates: 50, 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: 38.4ms SsaConstructionTime, 272.4ms SatisfiabilityAnalysisTime, 776.3ms InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 547 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...