/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/mix055_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:23:51,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:23:51,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:23:51,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:23:51,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:23:51,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:23:51,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:23:51,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:23:51,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:23:51,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:23:51,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:23:51,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:23:51,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:23:51,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:23:51,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:23:51,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:23:51,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:23:51,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:23:51,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:23:51,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:23:51,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:23:51,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:23:51,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:23:51,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:23:51,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:23:51,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:23:51,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:23:51,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:23:51,407 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 22:23:51,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:23:51,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:23:51,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:23:51,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:23:51,462 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:23:51,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:23:51,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:23:51,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:23:51,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:23:51,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:23:51,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:23:51,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:23:51,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:23:51,466 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:23:51,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:23:51,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:23:51,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:23:51,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:23:51,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:23:51,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:23:51,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:23:51,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:23:51,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:23:51,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:23:51,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:23:51,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:23:51,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:23:51,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:23:51,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:23:51,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:23:51,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:23:51,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:23:51,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:23:51,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:23:51,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:23:51,927 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:23:51,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix055_rmo.opt.i [2021-04-28 22:23:52,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ab539bc/bd03ec1ccdec4324b1c07b83df580b35/FLAG4ff28d79e [2021-04-28 22:23:52,689 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:23:52,690 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix055_rmo.opt.i [2021-04-28 22:23:52,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ab539bc/bd03ec1ccdec4324b1c07b83df580b35/FLAG4ff28d79e [2021-04-28 22:23:52,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5ab539bc/bd03ec1ccdec4324b1c07b83df580b35 [2021-04-28 22:23:52,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:23:53,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:23:53,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:23:53,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:23:53,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:23:53,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:23:52" (1/1) ... [2021-04-28 22:23:53,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a5ff9b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53, skipping insertion in model container [2021-04-28 22:23:53,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:23:52" (1/1) ... [2021-04-28 22:23:53,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:23:53,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:23:53,306 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/mix055_rmo.opt.i[948,961] [2021-04-28 22:23:53,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:23:53,537 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:23:53,553 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/mix055_rmo.opt.i[948,961] [2021-04-28 22:23:53,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:23:53,791 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:23:53,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53 WrapperNode [2021-04-28 22:23:53,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:23:53,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:23:53,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:23:53,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:23:53,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:23:53,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:23:53,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:23:53,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:23:53,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (1/1) ... [2021-04-28 22:23:53,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:23:53,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:23:53,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:23:53,974 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:23:53,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (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 22:23:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:23:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:23:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:23:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:23:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:23:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:23:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:23:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:23:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:23:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:23:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:23:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:23:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:23:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:23:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:23:54,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:23:54,117 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 22:23:56,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:23:56,900 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:23:56,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:23:56 BoogieIcfgContainer [2021-04-28 22:23:56,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:23:56,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:23:56,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:23:56,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:23:56,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:23:52" (1/3) ... [2021-04-28 22:23:56,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:23:56, skipping insertion in model container [2021-04-28 22:23:56,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:23:53" (2/3) ... [2021-04-28 22:23:56,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:23:56, skipping insertion in model container [2021-04-28 22:23:56,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:23:56" (3/3) ... [2021-04-28 22:23:56,914 INFO L111 eAbstractionObserver]: Analyzing ICFG mix055_rmo.opt.i [2021-04-28 22:23:56,925 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:23:56,930 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:23:56,931 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:23:56,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,998 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,999 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:56,999 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,000 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,000 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,000 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,002 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,002 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,003 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,004 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,005 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,006 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,007 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,008 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,009 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,014 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,015 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,015 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,016 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,016 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,017 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,017 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,017 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,017 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,018 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,018 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,018 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,019 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,019 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,019 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,019 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,020 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,020 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,021 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,022 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,022 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,022 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,022 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,022 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,023 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,024 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,026 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,027 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,027 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,030 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,030 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,031 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,033 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,034 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,035 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,038 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,042 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,042 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,043 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,047 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,048 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,050 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,051 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,051 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,051 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,051 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,052 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,052 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,054 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,054 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,055 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,055 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:23:57,056 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:23:57,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:23:57,105 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:23:57,105 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:23:57,105 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:23:57,105 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:23:57,105 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:23:57,106 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:23:57,106 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:23:57,106 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:23:57,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 246 flow [2021-04-28 22:23:57,180 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2021-04-28 22:23:57,180 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:23:57,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:23:57,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 113 transitions, 246 flow [2021-04-28 22:23:57,191 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 109 transitions, 230 flow [2021-04-28 22:23:57,193 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:23:57,209 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 109 transitions, 230 flow [2021-04-28 22:23:57,213 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 109 transitions, 230 flow [2021-04-28 22:23:57,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 120 places, 109 transitions, 230 flow [2021-04-28 22:23:57,242 INFO L129 PetriNetUnfolder]: 2/109 cut-off events. [2021-04-28 22:23:57,243 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:23:57,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 2/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/105 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:23:57,248 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:24:01,438 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:24:01,930 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:24:04,122 WARN L205 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:24:05,160 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:24:06,037 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:24:06,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:24:06,698 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:24:06,909 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:24:09,394 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:24:09,892 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:24:12,150 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-04-28 22:24:13,158 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:24:14,365 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 22:24:14,943 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 22:24:17,378 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 22:24:18,454 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:24:19,677 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:24:20,221 WARN L205 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:24:22,722 WARN L205 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:24:23,836 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:24:26,503 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:24:27,064 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:24:29,714 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:24:30,946 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:24:32,877 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 231 DAG size of output: 190 [2021-04-28 22:24:33,487 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:24:36,241 WARN L205 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:24:37,494 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:24:38,892 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:24:39,542 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:24:42,560 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 22:24:43,879 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:24:45,332 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:24:45,971 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:24:49,036 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:24:50,375 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:24:54,841 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:24:55,557 WARN L205 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:24:58,795 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 315 DAG size of output: 271 [2021-04-28 22:25:00,322 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:25:01,994 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:25:02,746 WARN L205 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:25:06,402 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:25:08,041 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:25:09,850 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:25:10,670 WARN L205 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:25:14,327 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:25:16,040 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:25:19,239 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:19,357 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:19,474 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:19,593 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:20,103 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:20,230 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:20,352 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:20,473 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:20,585 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:20,700 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:20,810 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:20,916 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:21,022 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:21,125 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:21,231 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:21,336 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:21,451 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:21,557 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:21,761 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:21,867 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:22,069 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:22,176 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:25:22,911 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:25:23,022 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:25:23,127 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 22:25:23,414 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-04-28 22:25:24,447 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:24,557 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:24,665 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:24,773 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:25:26,031 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:26,136 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:26,239 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:26,341 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:25:27,124 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:27,243 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:27,362 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:27,474 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:25:28,351 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:25:28,511 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:25:28,669 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:25:28,827 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:25:28,964 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:25:29,100 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:25:29,230 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:25:29,359 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:25:29,493 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:25:29,631 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:25:29,768 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:25:29,909 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:25:30,072 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:25:30,239 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:25:30,413 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:25:30,582 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:25:30,740 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:30,916 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:31,073 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:31,222 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:31,403 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:25:31,581 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:25:31,770 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:25:31,961 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:25:32,099 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:25:32,241 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:25:32,390 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:25:32,545 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:25:32,698 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:32,858 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:33,014 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:33,170 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:25:33,355 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:25:33,530 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:25:33,714 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:25:33,894 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:25:34,040 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:34,160 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:34,279 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:34,399 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:34,592 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:25:34,779 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:25:34,975 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:25:35,178 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:25:35,297 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:35,416 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:35,536 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:35,655 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:35,830 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:25:36,011 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:25:36,192 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:25:36,368 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:25:36,488 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:36,607 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:36,726 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:36,844 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:36,963 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:37,082 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:37,201 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:37,320 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:25:37,552 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:25:37,780 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:25:38,012 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:25:38,250 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 22:25:38,462 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:38,681 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:38,886 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:39,094 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:39,335 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:39,577 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:39,829 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:40,092 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:40,295 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:25:40,490 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:25:40,683 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:25:40,883 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:25:41,077 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:25:41,271 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:25:41,467 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:25:41,665 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:25:41,927 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:25:42,195 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:25:42,483 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:25:42,777 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:25:43,026 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:43,290 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:43,539 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:43,794 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:25:43,992 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:25:44,195 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:25:44,401 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:25:44,600 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:25:44,888 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:25:45,172 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:25:45,441 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:25:45,714 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:25:45,939 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:46,154 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:46,376 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:46,597 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:46,841 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:25:47,100 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:25:47,348 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:25:47,605 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:25:47,868 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:25:48,142 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:25:48,427 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:25:48,702 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:25:48,912 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:49,128 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:49,349 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:49,568 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:25:49,819 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:25:50,075 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:25:50,328 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:25:50,579 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:25:51,411 WARN L205 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:25:51,765 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:25:52,482 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:25:52,839 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:25:53,149 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:53,453 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:53,741 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:54,034 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:54,349 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:54,643 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:54,931 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:55,229 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:55,506 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:55,785 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:56,069 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:56,344 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:56,631 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:56,917 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:57,214 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:57,525 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:25:58,308 WARN L205 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:25:58,683 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:25:59,456 WARN L205 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:25:59,830 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:26:00,028 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:26:00,225 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:26:00,434 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:26:00,637 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:26:00,699 INFO L158 LiptonReduction]: Checked pairs total: 23607 [2021-04-28 22:26:00,699 INFO L160 LiptonReduction]: Total number of compositions: 242 [2021-04-28 22:26:00,704 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 123512 [2021-04-28 22:26:00,731 INFO L129 PetriNetUnfolder]: 2/98 cut-off events. [2021-04-28 22:26:00,731 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:26:00,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:00,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:00,733 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:00,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:00,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1113402049, now seen corresponding path program 1 times [2021-04-28 22:26:00,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:00,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064421430] [2021-04-28 22:26:00,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:01,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:01,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:01,075 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 22:26:01,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064421430] [2021-04-28 22:26:01,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:01,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:26:01,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336649581] [2021-04-28 22:26:01,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:26:01,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:01,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:26:01,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:26:01,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 355 [2021-04-28 22:26:01,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 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 22:26:01,112 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:01,112 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 355 [2021-04-28 22:26:01,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:01,577 INFO L129 PetriNetUnfolder]: 114/405 cut-off events. [2021-04-28 22:26:01,577 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:26:01,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 405 events. 114/405 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 2811 event pairs, 48 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 572. Up to 167 conditions per place. [2021-04-28 22:26:01,582 INFO L132 encePairwiseOnDemand]: 339/355 looper letters, 7 selfloop transitions, 2 changer transitions 100/149 dead transitions. [2021-04-28 22:26:01,582 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 149 transitions, 402 flow [2021-04-28 22:26:01,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:26:01,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:26:01,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 883 transitions. [2021-04-28 22:26:01,604 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8291079812206573 [2021-04-28 22:26:01,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 883 transitions. [2021-04-28 22:26:01,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 883 transitions. [2021-04-28 22:26:01,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:01,611 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 883 transitions. [2021-04-28 22:26:01,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 294.3333333333333) internal successors, (883), 3 states have internal predecessors, (883), 0 states have call successors, (0), 0 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 22:26:01,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:01,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:01,630 INFO L185 Difference]: Start difference. First operand has 148 places, 137 transitions, 286 flow. Second operand 3 states and 883 transitions. [2021-04-28 22:26:01,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 149 transitions, 402 flow [2021-04-28 22:26:01,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 149 transitions, 398 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:26:01,637 INFO L241 Difference]: Finished difference. Result has 143 places, 46 transitions, 104 flow [2021-04-28 22:26:01,640 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=143, PETRI_TRANSITIONS=46} [2021-04-28 22:26:01,640 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -5 predicate places. [2021-04-28 22:26:01,641 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:01,641 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 143 places, 46 transitions, 104 flow [2021-04-28 22:26:01,641 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 143 places, 46 transitions, 104 flow [2021-04-28 22:26:01,642 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:26:01,649 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:26:01,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:26:01,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 163 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:26:01,651 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:26:02,111 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:26:02,111 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:02,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 470 [2021-04-28 22:26:02,113 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:26:02,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 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 22:26:02,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:02,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:02,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:26:02,115 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:02,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash 532558527, now seen corresponding path program 1 times [2021-04-28 22:26:02,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:02,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191139596] [2021-04-28 22:26:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:02,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:02,230 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 22:26:02,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191139596] [2021-04-28 22:26:02,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:02,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:26:02,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222532293] [2021-04-28 22:26:02,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:26:02,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:02,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:26:02,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:26:02,236 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 355 [2021-04-28 22:26:02,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 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 22:26:02,237 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:02,237 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 355 [2021-04-28 22:26:02,237 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:02,263 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:26:02,264 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:26:02,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:26:02,265 INFO L132 encePairwiseOnDemand]: 351/355 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:26:02,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:26:02,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:26:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:26:02,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 766 transitions. [2021-04-28 22:26:02,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7192488262910798 [2021-04-28 22:26:02,272 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 766 transitions. [2021-04-28 22:26:02,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 766 transitions. [2021-04-28 22:26:02,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:02,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 766 transitions. [2021-04-28 22:26:02,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 0 states have call successors, (0), 0 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 22:26:02,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:02,280 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:02,280 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 766 transitions. [2021-04-28 22:26:02,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:26:02,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:26:02,283 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:26:02,283 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:26:02,284 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -90 predicate places. [2021-04-28 22:26:02,284 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:02,284 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:26:02,285 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:26:02,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:26:02,302 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:26:02,302 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:26:02,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 202 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:26:02,304 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:26:02,309 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:26:02,310 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:02,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 22:26:02,313 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:26:02,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 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 22:26:02,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:02,315 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:02,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:26:02,315 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:02,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:02,316 INFO L82 PathProgramCache]: Analyzing trace with hash 2039061783, now seen corresponding path program 1 times [2021-04-28 22:26:02,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:02,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386983231] [2021-04-28 22:26:02,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:02,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:02,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:26:02,520 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 22:26:02,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386983231] [2021-04-28 22:26:02,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:02,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:26:02,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765061356] [2021-04-28 22:26:02,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:26:02,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:02,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:26:02,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:26:02,532 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 355 [2021-04-28 22:26:02,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 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 22:26:02,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:02,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 355 [2021-04-28 22:26:02,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:02,664 INFO L129 PetriNetUnfolder]: 53/194 cut-off events. [2021-04-28 22:26:02,664 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-04-28 22:26:02,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 194 events. 53/194 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 932 event pairs, 34 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 321. Up to 77 conditions per place. [2021-04-28 22:26:02,667 INFO L132 encePairwiseOnDemand]: 351/355 looper letters, 7 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 22:26:02,668 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 51 transitions, 145 flow [2021-04-28 22:26:02,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:26:02,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:26:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 668 transitions. [2021-04-28 22:26:02,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6272300469483568 [2021-04-28 22:26:02,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 668 transitions. [2021-04-28 22:26:02,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 668 transitions. [2021-04-28 22:26:02,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:02,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 668 transitions. [2021-04-28 22:26:02,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 0 states have call successors, (0), 0 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 22:26:02,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:02,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:02,681 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 3 states and 668 transitions. [2021-04-28 22:26:02,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 51 transitions, 145 flow [2021-04-28 22:26:02,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 51 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:26:02,683 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:26:02,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-04-28 22:26:02,684 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -88 predicate places. [2021-04-28 22:26:02,684 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:02,684 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:26:02,684 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:26:02,685 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:26:02,699 INFO L129 PetriNetUnfolder]: 10/93 cut-off events. [2021-04-28 22:26:02,699 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-04-28 22:26:02,700 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 93 events. 10/93 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 389 event pairs, 4 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 133. Up to 18 conditions per place. [2021-04-28 22:26:02,703 INFO L146 LiptonReduction]: Number of co-enabled transitions 1482 [2021-04-28 22:26:02,800 INFO L158 LiptonReduction]: Checked pairs total: 942 [2021-04-28 22:26:02,801 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:02,801 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-04-28 22:26:02,803 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 135 flow [2021-04-28 22:26:02,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 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 22:26:02,804 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:02,804 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:02,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:26:02,804 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:02,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1214045296, now seen corresponding path program 1 times [2021-04-28 22:26:02,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:02,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092680822] [2021-04-28 22:26:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:02,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:26:02,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:26:02,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:02,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:26:03,001 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 22:26:03,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092680822] [2021-04-28 22:26:03,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:03,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:26:03,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164127395] [2021-04-28 22:26:03,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:26:03,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:03,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:26:03,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:26:03,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 355 [2021-04-28 22:26:03,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 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 22:26:03,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:03,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 355 [2021-04-28 22:26:03,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:03,201 INFO L129 PetriNetUnfolder]: 57/202 cut-off events. [2021-04-28 22:26:03,201 INFO L130 PetriNetUnfolder]: For 64/64 co-relation queries the response was YES. [2021-04-28 22:26:03,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 202 events. 57/202 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 967 event pairs, 31 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 383. Up to 80 conditions per place. [2021-04-28 22:26:03,205 INFO L132 encePairwiseOnDemand]: 348/355 looper letters, 10 selfloop transitions, 8 changer transitions 0/59 dead transitions. [2021-04-28 22:26:03,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 197 flow [2021-04-28 22:26:03,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:26:03,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:26:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1083 transitions. [2021-04-28 22:26:03,211 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6101408450704225 [2021-04-28 22:26:03,211 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1083 transitions. [2021-04-28 22:26:03,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1083 transitions. [2021-04-28 22:26:03,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:03,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1083 transitions. [2021-04-28 22:26:03,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 216.6) internal successors, (1083), 5 states have internal predecessors, (1083), 0 states have call successors, (0), 0 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 22:26:03,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 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 22:26:03,222 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 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 22:26:03,222 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 135 flow. Second operand 5 states and 1083 transitions. [2021-04-28 22:26:03,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 197 flow [2021-04-28 22:26:03,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:26:03,225 INFO L241 Difference]: Finished difference. Result has 66 places, 57 transitions, 194 flow [2021-04-28 22:26:03,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=66, PETRI_TRANSITIONS=57} [2021-04-28 22:26:03,226 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -82 predicate places. [2021-04-28 22:26:03,226 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:03,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 57 transitions, 194 flow [2021-04-28 22:26:03,227 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 57 transitions, 194 flow [2021-04-28 22:26:03,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 57 transitions, 194 flow [2021-04-28 22:26:03,258 INFO L129 PetriNetUnfolder]: 39/174 cut-off events. [2021-04-28 22:26:03,258 INFO L130 PetriNetUnfolder]: For 153/154 co-relation queries the response was YES. [2021-04-28 22:26:03,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 174 events. 39/174 cut-off events. For 153/154 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 880 event pairs, 18 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 360. Up to 48 conditions per place. [2021-04-28 22:26:03,265 INFO L146 LiptonReduction]: Number of co-enabled transitions 1780 [2021-04-28 22:26:03,303 INFO L158 LiptonReduction]: Checked pairs total: 689 [2021-04-28 22:26:03,303 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:03,303 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-04-28 22:26:03,305 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 57 transitions, 194 flow [2021-04-28 22:26:03,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 0 states have call successors, (0), 0 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 22:26:03,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:03,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:03,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:26:03,307 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:03,307 INFO L82 PathProgramCache]: Analyzing trace with hash 687573524, now seen corresponding path program 2 times [2021-04-28 22:26:03,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:03,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308801081] [2021-04-28 22:26:03,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:03,416 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:03,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:26:03,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:26:03,473 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 22:26:03,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308801081] [2021-04-28 22:26:03,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:03,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:26:03,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874082595] [2021-04-28 22:26:03,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:26:03,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:03,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:26:03,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:26:03,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 355 [2021-04-28 22:26:03,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 194 flow. Second operand has 5 states, 5 states have (on average 217.8) internal successors, (1089), 5 states have internal predecessors, (1089), 0 states have call successors, (0), 0 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 22:26:03,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:03,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 355 [2021-04-28 22:26:03,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:03,619 INFO L129 PetriNetUnfolder]: 51/185 cut-off events. [2021-04-28 22:26:03,619 INFO L130 PetriNetUnfolder]: For 222/228 co-relation queries the response was YES. [2021-04-28 22:26:03,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 185 events. 51/185 cut-off events. For 222/228 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 839 event pairs, 30 based on Foata normal form. 4/130 useless extension candidates. Maximal degree in co-relation 446. Up to 74 conditions per place. [2021-04-28 22:26:03,623 INFO L132 encePairwiseOnDemand]: 350/355 looper letters, 10 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2021-04-28 22:26:03,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 60 transitions, 246 flow [2021-04-28 22:26:03,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:26:03,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:26:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 882 transitions. [2021-04-28 22:26:03,629 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6211267605633802 [2021-04-28 22:26:03,629 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 882 transitions. [2021-04-28 22:26:03,629 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 882 transitions. [2021-04-28 22:26:03,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:03,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 882 transitions. [2021-04-28 22:26:03,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 220.5) internal successors, (882), 4 states have internal predecessors, (882), 0 states have call successors, (0), 0 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 22:26:03,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:03,638 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:03,638 INFO L185 Difference]: Start difference. First operand has 66 places, 57 transitions, 194 flow. Second operand 4 states and 882 transitions. [2021-04-28 22:26:03,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 60 transitions, 246 flow [2021-04-28 22:26:03,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 60 transitions, 244 flow, removed 1 selfloop flow, removed 0 redundant places. [2021-04-28 22:26:03,642 INFO L241 Difference]: Finished difference. Result has 70 places, 59 transitions, 232 flow [2021-04-28 22:26:03,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2021-04-28 22:26:03,642 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -78 predicate places. [2021-04-28 22:26:03,643 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:03,643 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 59 transitions, 232 flow [2021-04-28 22:26:03,643 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 59 transitions, 232 flow [2021-04-28 22:26:03,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 59 transitions, 232 flow [2021-04-28 22:26:03,678 INFO L129 PetriNetUnfolder]: 45/177 cut-off events. [2021-04-28 22:26:03,678 INFO L130 PetriNetUnfolder]: For 355/362 co-relation queries the response was YES. [2021-04-28 22:26:03,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 177 events. 45/177 cut-off events. For 355/362 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 887 event pairs, 16 based on Foata normal form. 1/110 useless extension candidates. Maximal degree in co-relation 440. Up to 50 conditions per place. [2021-04-28 22:26:03,684 INFO L146 LiptonReduction]: Number of co-enabled transitions 1832 [2021-04-28 22:26:03,691 INFO L158 LiptonReduction]: Checked pairs total: 778 [2021-04-28 22:26:03,691 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:03,691 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-04-28 22:26:03,694 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 232 flow [2021-04-28 22:26:03,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 217.8) internal successors, (1089), 5 states have internal predecessors, (1089), 0 states have call successors, (0), 0 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 22:26:03,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:03,696 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:03,696 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:26:03,696 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:03,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:03,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1838992756, now seen corresponding path program 1 times [2021-04-28 22:26:03,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:03,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554413259] [2021-04-28 22:26:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:03,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:03,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:26:03,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:03,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:03,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:26:03,887 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 22:26:03,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554413259] [2021-04-28 22:26:03,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:03,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:26:03,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133526154] [2021-04-28 22:26:03,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:26:03,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:03,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:26:03,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:26:03,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 355 [2021-04-28 22:26:03,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 232 flow. Second operand has 5 states, 5 states have (on average 220.8) internal successors, (1104), 5 states have internal predecessors, (1104), 0 states have call successors, (0), 0 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 22:26:03,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:03,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 355 [2021-04-28 22:26:03,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:04,076 INFO L129 PetriNetUnfolder]: 36/159 cut-off events. [2021-04-28 22:26:04,076 INFO L130 PetriNetUnfolder]: For 285/287 co-relation queries the response was YES. [2021-04-28 22:26:04,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 159 events. 36/159 cut-off events. For 285/287 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 736 event pairs, 5 based on Foata normal form. 4/110 useless extension candidates. Maximal degree in co-relation 408. Up to 45 conditions per place. [2021-04-28 22:26:04,079 INFO L132 encePairwiseOnDemand]: 349/355 looper letters, 12 selfloop transitions, 14 changer transitions 0/67 dead transitions. [2021-04-28 22:26:04,079 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 67 transitions, 326 flow [2021-04-28 22:26:04,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:26:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:26:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1341 transitions. [2021-04-28 22:26:04,087 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6295774647887324 [2021-04-28 22:26:04,087 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1341 transitions. [2021-04-28 22:26:04,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1341 transitions. [2021-04-28 22:26:04,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:04,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1341 transitions. [2021-04-28 22:26:04,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 0 states have call successors, (0), 0 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 22:26:04,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 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 22:26:04,097 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 355.0) internal successors, (2485), 7 states have internal predecessors, (2485), 0 states have call successors, (0), 0 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 22:26:04,097 INFO L185 Difference]: Start difference. First operand has 70 places, 59 transitions, 232 flow. Second operand 6 states and 1341 transitions. [2021-04-28 22:26:04,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 67 transitions, 326 flow [2021-04-28 22:26:04,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 306 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-04-28 22:26:04,102 INFO L241 Difference]: Finished difference. Result has 75 places, 63 transitions, 281 flow [2021-04-28 22:26:04,102 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=281, PETRI_PLACES=75, PETRI_TRANSITIONS=63} [2021-04-28 22:26:04,102 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -73 predicate places. [2021-04-28 22:26:04,103 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:04,103 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 63 transitions, 281 flow [2021-04-28 22:26:04,103 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 63 transitions, 281 flow [2021-04-28 22:26:04,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 63 transitions, 281 flow [2021-04-28 22:26:04,136 INFO L129 PetriNetUnfolder]: 41/160 cut-off events. [2021-04-28 22:26:04,137 INFO L130 PetriNetUnfolder]: For 376/377 co-relation queries the response was YES. [2021-04-28 22:26:04,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 160 events. 41/160 cut-off events. For 376/377 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 742 event pairs, 9 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 444. Up to 42 conditions per place. [2021-04-28 22:26:04,143 INFO L146 LiptonReduction]: Number of co-enabled transitions 2028 [2021-04-28 22:26:04,149 INFO L158 LiptonReduction]: Checked pairs total: 853 [2021-04-28 22:26:04,150 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:04,150 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-28 22:26:04,152 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 63 transitions, 281 flow [2021-04-28 22:26:04,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 220.8) internal successors, (1104), 5 states have internal predecessors, (1104), 0 states have call successors, (0), 0 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 22:26:04,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:04,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:04,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:26:04,153 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:04,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1174204263, now seen corresponding path program 1 times [2021-04-28 22:26:04,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:04,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105079200] [2021-04-28 22:26:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:04,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:04,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:26:04,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:26:04,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:26:04,321 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 22:26:04,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105079200] [2021-04-28 22:26:04,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:04,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:26:04,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435146645] [2021-04-28 22:26:04,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:26:04,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:04,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:26:04,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:26:04,325 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 355 [2021-04-28 22:26:04,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 281 flow. Second operand has 6 states, 6 states have (on average 216.83333333333334) internal successors, (1301), 6 states have internal predecessors, (1301), 0 states have call successors, (0), 0 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 22:26:04,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:04,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 355 [2021-04-28 22:26:04,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:04,512 INFO L129 PetriNetUnfolder]: 35/152 cut-off events. [2021-04-28 22:26:04,512 INFO L130 PetriNetUnfolder]: For 296/298 co-relation queries the response was YES. [2021-04-28 22:26:04,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442 conditions, 152 events. 35/152 cut-off events. For 296/298 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 655 event pairs, 8 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 421. Up to 52 conditions per place. [2021-04-28 22:26:04,516 INFO L132 encePairwiseOnDemand]: 350/355 looper letters, 16 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2021-04-28 22:26:04,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 65 transitions, 337 flow [2021-04-28 22:26:04,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:26:04,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:26:04,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 877 transitions. [2021-04-28 22:26:04,521 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6176056338028169 [2021-04-28 22:26:04,522 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 877 transitions. [2021-04-28 22:26:04,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 877 transitions. [2021-04-28 22:26:04,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:04,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 877 transitions. [2021-04-28 22:26:04,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 219.25) internal successors, (877), 4 states have internal predecessors, (877), 0 states have call successors, (0), 0 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 22:26:04,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:04,529 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:04,529 INFO L185 Difference]: Start difference. First operand has 75 places, 63 transitions, 281 flow. Second operand 4 states and 877 transitions. [2021-04-28 22:26:04,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 65 transitions, 337 flow [2021-04-28 22:26:04,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 65 transitions, 326 flow, removed 3 selfloop flow, removed 1 redundant places. [2021-04-28 22:26:04,533 INFO L241 Difference]: Finished difference. Result has 78 places, 63 transitions, 295 flow [2021-04-28 22:26:04,533 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2021-04-28 22:26:04,534 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -70 predicate places. [2021-04-28 22:26:04,534 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:04,534 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 63 transitions, 295 flow [2021-04-28 22:26:04,534 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 63 transitions, 295 flow [2021-04-28 22:26:04,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 63 transitions, 295 flow [2021-04-28 22:26:04,564 INFO L129 PetriNetUnfolder]: 32/153 cut-off events. [2021-04-28 22:26:04,564 INFO L130 PetriNetUnfolder]: For 422/423 co-relation queries the response was YES. [2021-04-28 22:26:04,566 INFO L84 FinitePrefix]: Finished finitePrefix Result has 445 conditions, 153 events. 32/153 cut-off events. For 422/423 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 747 event pairs, 5 based on Foata normal form. 1/93 useless extension candidates. Maximal degree in co-relation 424. Up to 36 conditions per place. [2021-04-28 22:26:04,570 INFO L146 LiptonReduction]: Number of co-enabled transitions 2026 [2021-04-28 22:26:04,609 INFO L158 LiptonReduction]: Checked pairs total: 853 [2021-04-28 22:26:04,609 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:04,609 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 75 [2021-04-28 22:26:04,611 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 295 flow [2021-04-28 22:26:04,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 216.83333333333334) internal successors, (1301), 6 states have internal predecessors, (1301), 0 states have call successors, (0), 0 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 22:26:04,612 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:04,612 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:04,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:26:04,612 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:04,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:04,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1239051899, now seen corresponding path program 1 times [2021-04-28 22:26:04,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:04,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187826294] [2021-04-28 22:26:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:04,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:04,694 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:26:04,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:04,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:04,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:26:04,715 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 22:26:04,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187826294] [2021-04-28 22:26:04,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:04,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:26:04,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427195491] [2021-04-28 22:26:04,716 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:26:04,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:04,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:26:04,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:26:04,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:26:04,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 295 flow. Second operand has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 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 22:26:04,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:04,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:26:04,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:09,330 INFO L129 PetriNetUnfolder]: 20076/29064 cut-off events. [2021-04-28 22:26:09,330 INFO L130 PetriNetUnfolder]: For 17560/18141 co-relation queries the response was YES. [2021-04-28 22:26:09,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63643 conditions, 29064 events. 20076/29064 cut-off events. For 17560/18141 co-relation queries the response was YES. Maximal size of possible extension queue 5063. Compared 245879 event pairs, 10911 based on Foata normal form. 497/8756 useless extension candidates. Maximal degree in co-relation 63620. Up to 18175 conditions per place. [2021-04-28 22:26:09,658 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 35 selfloop transitions, 33 changer transitions 0/107 dead transitions. [2021-04-28 22:26:09,658 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 519 flow [2021-04-28 22:26:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:26:09,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:26:09,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1391 transitions. [2021-04-28 22:26:09,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.783661971830986 [2021-04-28 22:26:09,665 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1391 transitions. [2021-04-28 22:26:09,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1391 transitions. [2021-04-28 22:26:09,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:09,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1391 transitions. [2021-04-28 22:26:09,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 278.2) internal successors, (1391), 5 states have internal predecessors, (1391), 0 states have call successors, (0), 0 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 22:26:09,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 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 22:26:09,675 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 355.0) internal successors, (2130), 6 states have internal predecessors, (2130), 0 states have call successors, (0), 0 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 22:26:09,675 INFO L185 Difference]: Start difference. First operand has 78 places, 63 transitions, 295 flow. Second operand 5 states and 1391 transitions. [2021-04-28 22:26:09,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 107 transitions, 519 flow [2021-04-28 22:26:09,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 107 transitions, 503 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 22:26:09,705 INFO L241 Difference]: Finished difference. Result has 82 places, 94 transitions, 529 flow [2021-04-28 22:26:09,705 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=529, PETRI_PLACES=82, PETRI_TRANSITIONS=94} [2021-04-28 22:26:09,706 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -66 predicate places. [2021-04-28 22:26:09,706 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:09,706 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 94 transitions, 529 flow [2021-04-28 22:26:09,706 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 94 transitions, 529 flow [2021-04-28 22:26:09,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 94 transitions, 529 flow [2021-04-28 22:26:12,932 INFO L129 PetriNetUnfolder]: 18079/26497 cut-off events. [2021-04-28 22:26:12,932 INFO L130 PetriNetUnfolder]: For 17291/24859 co-relation queries the response was YES. [2021-04-28 22:26:13,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79342 conditions, 26497 events. 18079/26497 cut-off events. For 17291/24859 co-relation queries the response was YES. Maximal size of possible extension queue 4755. Compared 227848 event pairs, 10160 based on Foata normal form. 2/7706 useless extension candidates. Maximal degree in co-relation 79318. Up to 24749 conditions per place. [2021-04-28 22:26:13,462 INFO L146 LiptonReduction]: Number of co-enabled transitions 2958 [2021-04-28 22:26:13,533 INFO L158 LiptonReduction]: Checked pairs total: 1455 [2021-04-28 22:26:13,534 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:13,534 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3828 [2021-04-28 22:26:13,536 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 94 transitions, 529 flow [2021-04-28 22:26:13,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 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 22:26:13,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:13,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:13,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:26:13,537 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:13,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:13,538 INFO L82 PathProgramCache]: Analyzing trace with hash -758766420, now seen corresponding path program 1 times [2021-04-28 22:26:13,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:13,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460263512] [2021-04-28 22:26:13,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:13,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:13,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:26:13,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:13,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:13,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:13,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:13,610 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 22:26:13,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460263512] [2021-04-28 22:26:13,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:13,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:26:13,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721218066] [2021-04-28 22:26:13,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:26:13,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:13,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:26:13,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:26:13,615 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 355 [2021-04-28 22:26:13,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 94 transitions, 529 flow. Second operand has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 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 22:26:13,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:13,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 355 [2021-04-28 22:26:13,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:18,914 INFO L129 PetriNetUnfolder]: 33758/49485 cut-off events. [2021-04-28 22:26:18,914 INFO L130 PetriNetUnfolder]: For 58169/122613 co-relation queries the response was YES. [2021-04-28 22:26:19,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148565 conditions, 49485 events. 33758/49485 cut-off events. For 58169/122613 co-relation queries the response was YES. Maximal size of possible extension queue 7969. Compared 443160 event pairs, 19569 based on Foata normal form. 525/14986 useless extension candidates. Maximal degree in co-relation 148539. Up to 46457 conditions per place. [2021-04-28 22:26:19,412 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 4 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2021-04-28 22:26:19,413 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 96 transitions, 559 flow [2021-04-28 22:26:19,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:26:19,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:26:19,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 991 transitions. [2021-04-28 22:26:19,419 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6978873239436619 [2021-04-28 22:26:19,419 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 991 transitions. [2021-04-28 22:26:19,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 991 transitions. [2021-04-28 22:26:19,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:19,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 991 transitions. [2021-04-28 22:26:19,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 0 states have call successors, (0), 0 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 22:26:19,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:19,426 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:26:19,426 INFO L185 Difference]: Start difference. First operand has 82 places, 94 transitions, 529 flow. Second operand 4 states and 991 transitions. [2021-04-28 22:26:19,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 96 transitions, 559 flow [2021-04-28 22:26:19,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 96 transitions, 559 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:26:19,483 INFO L241 Difference]: Finished difference. Result has 87 places, 95 transitions, 542 flow [2021-04-28 22:26:19,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=542, PETRI_PLACES=87, PETRI_TRANSITIONS=95} [2021-04-28 22:26:19,483 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -61 predicate places. [2021-04-28 22:26:19,483 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:19,483 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 95 transitions, 542 flow [2021-04-28 22:26:19,484 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 95 transitions, 542 flow [2021-04-28 22:26:19,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 95 transitions, 542 flow [2021-04-28 22:26:24,020 INFO L129 PetriNetUnfolder]: 33864/49367 cut-off events. [2021-04-28 22:26:24,020 INFO L130 PetriNetUnfolder]: For 24496/45854 co-relation queries the response was YES. [2021-04-28 22:26:24,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145785 conditions, 49367 events. 33864/49367 cut-off events. For 24496/45854 co-relation queries the response was YES. Maximal size of possible extension queue 8122. Compared 445515 event pairs, 19296 based on Foata normal form. 15/14204 useless extension candidates. Maximal degree in co-relation 145758. Up to 46949 conditions per place. [2021-04-28 22:26:24,941 INFO L146 LiptonReduction]: Number of co-enabled transitions 3046 [2021-04-28 22:26:25,111 INFO L158 LiptonReduction]: Checked pairs total: 1013 [2021-04-28 22:26:25,111 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:25,111 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5628 [2021-04-28 22:26:25,113 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 95 transitions, 542 flow [2021-04-28 22:26:25,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 247.0) internal successors, (988), 4 states have internal predecessors, (988), 0 states have call successors, (0), 0 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 22:26:25,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:25,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:25,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:26:25,114 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:25,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:25,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1599154997, now seen corresponding path program 1 times [2021-04-28 22:26:25,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:25,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823550960] [2021-04-28 22:26:25,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:25,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:25,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:25,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:25,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:25,200 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:26:25,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:26:25,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:25,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:26:25,225 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 22:26:25,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823550960] [2021-04-28 22:26:25,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:25,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:26:25,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253097857] [2021-04-28 22:26:25,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:26:25,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:25,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:26:25,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:26:25,229 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:26:25,231 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 95 transitions, 542 flow. Second operand has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 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 22:26:25,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:25,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:26:25,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:32,272 INFO L129 PetriNetUnfolder]: 41573/62838 cut-off events. [2021-04-28 22:26:32,273 INFO L130 PetriNetUnfolder]: For 37912/303061 co-relation queries the response was YES. [2021-04-28 22:26:32,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245949 conditions, 62838 events. 41573/62838 cut-off events. For 37912/303061 co-relation queries the response was YES. Maximal size of possible extension queue 10732. Compared 589242 event pairs, 8568 based on Foata normal form. 1022/20438 useless extension candidates. Maximal degree in co-relation 245920. Up to 58616 conditions per place. [2021-04-28 22:26:32,802 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 36 selfloop transitions, 64 changer transitions 0/140 dead transitions. [2021-04-28 22:26:32,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 140 transitions, 991 flow [2021-04-28 22:26:32,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:26:32,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:26:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1951 transitions. [2021-04-28 22:26:32,810 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7851106639839034 [2021-04-28 22:26:32,810 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1951 transitions. [2021-04-28 22:26:32,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1951 transitions. [2021-04-28 22:26:32,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:32,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1951 transitions. [2021-04-28 22:26:32,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 278.7142857142857) internal successors, (1951), 7 states have internal predecessors, (1951), 0 states have call successors, (0), 0 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 22:26:32,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 355.0) internal successors, (2840), 8 states have internal predecessors, (2840), 0 states have call successors, (0), 0 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 22:26:32,825 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 355.0) internal successors, (2840), 8 states have internal predecessors, (2840), 0 states have call successors, (0), 0 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 22:26:32,825 INFO L185 Difference]: Start difference. First operand has 87 places, 95 transitions, 542 flow. Second operand 7 states and 1951 transitions. [2021-04-28 22:26:32,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 140 transitions, 991 flow [2021-04-28 22:26:33,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 140 transitions, 990 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:26:33,179 INFO L241 Difference]: Finished difference. Result has 95 places, 126 transitions, 987 flow [2021-04-28 22:26:33,180 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=541, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=987, PETRI_PLACES=95, PETRI_TRANSITIONS=126} [2021-04-28 22:26:33,181 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -53 predicate places. [2021-04-28 22:26:33,181 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:33,181 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 126 transitions, 987 flow [2021-04-28 22:26:33,181 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 126 transitions, 987 flow [2021-04-28 22:26:33,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 126 transitions, 987 flow [2021-04-28 22:26:39,814 INFO L129 PetriNetUnfolder]: 37889/58227 cut-off events. [2021-04-28 22:26:39,814 INFO L130 PetriNetUnfolder]: For 61702/146913 co-relation queries the response was YES. [2021-04-28 22:26:40,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279973 conditions, 58227 events. 37889/58227 cut-off events. For 61702/146913 co-relation queries the response was YES. Maximal size of possible extension queue 11287. Compared 577427 event pairs, 8471 based on Foata normal form. 11/16819 useless extension candidates. Maximal degree in co-relation 279942. Up to 55400 conditions per place. [2021-04-28 22:26:40,638 INFO L146 LiptonReduction]: Number of co-enabled transitions 4058 [2021-04-28 22:26:40,722 INFO L158 LiptonReduction]: Checked pairs total: 1900 [2021-04-28 22:26:40,722 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:26:40,722 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7541 [2021-04-28 22:26:40,724 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 126 transitions, 987 flow [2021-04-28 22:26:40,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 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 22:26:40,725 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:26:40,725 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:26:40,725 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:26:40,725 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:26:40,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:26:40,726 INFO L82 PathProgramCache]: Analyzing trace with hash -375175208, now seen corresponding path program 1 times [2021-04-28 22:26:40,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:26:40,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099955514] [2021-04-28 22:26:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:26:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:26:40,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:40,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:26:40,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:26:40,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:26:40,790 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 22:26:40,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099955514] [2021-04-28 22:26:40,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:26:40,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:26:40,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430442254] [2021-04-28 22:26:40,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:26:40,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:26:40,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:26:40,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:26:40,793 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 355 [2021-04-28 22:26:40,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 126 transitions, 987 flow. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 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 22:26:40,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:26:40,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 355 [2021-04-28 22:26:40,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:26:53,069 INFO L129 PetriNetUnfolder]: 67274/100566 cut-off events. [2021-04-28 22:26:53,069 INFO L130 PetriNetUnfolder]: For 110018/698114 co-relation queries the response was YES. [2021-04-28 22:26:53,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 484804 conditions, 100566 events. 67274/100566 cut-off events. For 110018/698114 co-relation queries the response was YES. Maximal size of possible extension queue 16967. Compared 970400 event pairs, 15912 based on Foata normal form. 498/29392 useless extension candidates. Maximal degree in co-relation 484771. Up to 97145 conditions per place. [2021-04-28 22:26:54,072 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 3 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2021-04-28 22:26:54,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 126 transitions, 999 flow [2021-04-28 22:26:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:26:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:26:54,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2021-04-28 22:26:54,077 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7183098591549296 [2021-04-28 22:26:54,077 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 765 transitions. [2021-04-28 22:26:54,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 765 transitions. [2021-04-28 22:26:54,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:26:54,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 765 transitions. [2021-04-28 22:26:54,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 0 states have call successors, (0), 0 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 22:26:54,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:54,099 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 355.0) internal successors, (1420), 4 states have internal predecessors, (1420), 0 states have call successors, (0), 0 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 22:26:54,099 INFO L185 Difference]: Start difference. First operand has 95 places, 126 transitions, 987 flow. Second operand 3 states and 765 transitions. [2021-04-28 22:26:54,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 126 transitions, 999 flow [2021-04-28 22:26:57,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 126 transitions, 837 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 22:26:57,308 INFO L241 Difference]: Finished difference. Result has 95 places, 126 transitions, 836 flow [2021-04-28 22:26:57,308 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=836, PETRI_PLACES=95, PETRI_TRANSITIONS=126} [2021-04-28 22:26:57,308 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -53 predicate places. [2021-04-28 22:26:57,308 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:26:57,309 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 126 transitions, 836 flow [2021-04-28 22:26:57,309 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 126 transitions, 836 flow [2021-04-28 22:26:57,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 126 transitions, 836 flow [2021-04-28 22:27:08,333 INFO L129 PetriNetUnfolder]: 67436/100847 cut-off events. [2021-04-28 22:27:08,333 INFO L130 PetriNetUnfolder]: For 126992/157853 co-relation queries the response was YES. [2021-04-28 22:27:09,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 463875 conditions, 100847 events. 67436/100847 cut-off events. For 126992/157853 co-relation queries the response was YES. Maximal size of possible extension queue 18569. Compared 1006289 event pairs, 15758 based on Foata normal form. 13/28451 useless extension candidates. Maximal degree in co-relation 463844. Up to 87739 conditions per place. [2021-04-28 22:27:10,323 INFO L146 LiptonReduction]: Number of co-enabled transitions 4056 [2021-04-28 22:27:10,482 INFO L158 LiptonReduction]: Checked pairs total: 1900 [2021-04-28 22:27:10,482 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:27:10,482 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13174 [2021-04-28 22:27:10,483 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 126 transitions, 836 flow [2021-04-28 22:27:10,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 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 22:27:10,484 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:27:10,484 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:27:10,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:27:10,484 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:27:10,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:27:10,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1698332104, now seen corresponding path program 1 times [2021-04-28 22:27:10,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:27:10,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279953669] [2021-04-28 22:27:10,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:27:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:27:10,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:10,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:10,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:10,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:10,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:10,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:10,578 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:27:10,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:27:10,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:10,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:27:10,605 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 22:27:10,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279953669] [2021-04-28 22:27:10,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:27:10,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:27:10,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845073010] [2021-04-28 22:27:10,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:27:10,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:27:10,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:27:10,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:27:10,611 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:27:10,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 126 transitions, 836 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 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 22:27:10,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:27:10,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:27:10,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:27:24,825 INFO L129 PetriNetUnfolder]: 69173/108486 cut-off events. [2021-04-28 22:27:24,825 INFO L130 PetriNetUnfolder]: For 136479/778329 co-relation queries the response was YES. [2021-04-28 22:27:25,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 600430 conditions, 108486 events. 69173/108486 cut-off events. For 136479/778329 co-relation queries the response was YES. Maximal size of possible extension queue 19557. Compared 1128619 event pairs, 2700 based on Foata normal form. 1654/34285 useless extension candidates. Maximal degree in co-relation 600397. Up to 93484 conditions per place. [2021-04-28 22:27:25,663 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 24 selfloop transitions, 95 changer transitions 12/167 dead transitions. [2021-04-28 22:27:25,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 167 transitions, 1459 flow [2021-04-28 22:27:25,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:27:25,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:27:25,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2511 transitions. [2021-04-28 22:27:25,674 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7859154929577464 [2021-04-28 22:27:25,674 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2511 transitions. [2021-04-28 22:27:25,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2511 transitions. [2021-04-28 22:27:25,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:27:25,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2511 transitions. [2021-04-28 22:27:25,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 279.0) internal successors, (2511), 9 states have internal predecessors, (2511), 0 states have call successors, (0), 0 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 22:27:25,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 0 states have call successors, (0), 0 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 22:27:25,690 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 355.0) internal successors, (3550), 10 states have internal predecessors, (3550), 0 states have call successors, (0), 0 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 22:27:25,690 INFO L185 Difference]: Start difference. First operand has 95 places, 126 transitions, 836 flow. Second operand 9 states and 2511 transitions. [2021-04-28 22:27:25,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 167 transitions, 1459 flow [2021-04-28 22:27:29,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 167 transitions, 1440 flow, removed 2 selfloop flow, removed 5 redundant places. [2021-04-28 22:27:29,434 INFO L241 Difference]: Finished difference. Result has 101 places, 152 transitions, 1359 flow [2021-04-28 22:27:29,435 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1359, PETRI_PLACES=101, PETRI_TRANSITIONS=152} [2021-04-28 22:27:29,435 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -47 predicate places. [2021-04-28 22:27:29,435 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:27:29,435 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 152 transitions, 1359 flow [2021-04-28 22:27:29,435 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 152 transitions, 1359 flow [2021-04-28 22:27:29,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 152 transitions, 1359 flow [2021-04-28 22:27:39,231 INFO L129 PetriNetUnfolder]: 46121/78135 cut-off events. [2021-04-28 22:27:39,231 INFO L130 PetriNetUnfolder]: For 197837/304408 co-relation queries the response was YES. [2021-04-28 22:27:39,746 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471275 conditions, 78135 events. 46121/78135 cut-off events. For 197837/304408 co-relation queries the response was YES. Maximal size of possible extension queue 18040. Compared 905718 event pairs, 2646 based on Foata normal form. 1/21314 useless extension candidates. Maximal degree in co-relation 471243. Up to 65116 conditions per place. [2021-04-28 22:27:40,521 INFO L146 LiptonReduction]: Number of co-enabled transitions 4460 [2021-04-28 22:27:40,870 INFO L158 LiptonReduction]: Checked pairs total: 2679 [2021-04-28 22:27:40,870 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:27:40,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11435 [2021-04-28 22:27:40,873 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 152 transitions, 1359 flow [2021-04-28 22:27:40,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 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 22:27:40,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:27:40,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:27:40,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:27:40,874 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:27:40,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:27:40,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955246, now seen corresponding path program 1 times [2021-04-28 22:27:40,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:27:40,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975688224] [2021-04-28 22:27:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:27:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:27:40,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:40,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:40,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:40,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:40,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:40,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:40,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:40,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:27:41,011 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:27:41,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:27:41,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:27:41,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:27:41,041 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 22:27:41,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975688224] [2021-04-28 22:27:41,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:27:41,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:27:41,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802549727] [2021-04-28 22:27:41,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:27:41,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:27:41,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:27:41,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:27:41,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 355 [2021-04-28 22:27:41,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 152 transitions, 1359 flow. Second operand has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 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 22:27:41,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:27:41,049 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 355 [2021-04-28 22:27:41,049 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:27:53,386 INFO L129 PetriNetUnfolder]: 45683/79218 cut-off events. [2021-04-28 22:27:53,387 INFO L130 PetriNetUnfolder]: For 207246/1203898 co-relation queries the response was YES. [2021-04-28 22:27:54,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 549765 conditions, 79218 events. 45683/79218 cut-off events. For 207246/1203898 co-relation queries the response was YES. Maximal size of possible extension queue 17389. Compared 918248 event pairs, 0 based on Foata normal form. 1218/23568 useless extension candidates. Maximal degree in co-relation 549731. Up to 65323 conditions per place. [2021-04-28 22:27:54,449 INFO L132 encePairwiseOnDemand]: 335/355 looper letters, 6 selfloop transitions, 113 changer transitions 20/175 dead transitions. [2021-04-28 22:27:54,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 175 transitions, 1847 flow [2021-04-28 22:27:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:27:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:27:54,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3047 transitions. [2021-04-28 22:27:54,461 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.780281690140845 [2021-04-28 22:27:54,461 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3047 transitions. [2021-04-28 22:27:54,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3047 transitions. [2021-04-28 22:27:54,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:27:54,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3047 transitions. [2021-04-28 22:27:54,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 277.0) internal successors, (3047), 11 states have internal predecessors, (3047), 0 states have call successors, (0), 0 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 22:27:54,478 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 355.0) internal successors, (4260), 12 states have internal predecessors, (4260), 0 states have call successors, (0), 0 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 22:27:54,479 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 355.0) internal successors, (4260), 12 states have internal predecessors, (4260), 0 states have call successors, (0), 0 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 22:27:54,479 INFO L185 Difference]: Start difference. First operand has 101 places, 152 transitions, 1359 flow. Second operand 11 states and 3047 transitions. [2021-04-28 22:27:54,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 175 transitions, 1847 flow [2021-04-28 22:30:41,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 175 transitions, 1497 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-04-28 22:30:41,587 INFO L241 Difference]: Finished difference. Result has 108 places, 152 transitions, 1292 flow [2021-04-28 22:30:41,587 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=1010, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1292, PETRI_PLACES=108, PETRI_TRANSITIONS=152} [2021-04-28 22:30:41,587 INFO L343 CegarLoopForPetriNet]: 148 programPoint places, -40 predicate places. [2021-04-28 22:30:41,587 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:30:41,588 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 152 transitions, 1292 flow [2021-04-28 22:30:41,588 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 152 transitions, 1292 flow [2021-04-28 22:30:41,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 152 transitions, 1292 flow [2021-04-28 22:30:47,367 INFO L129 PetriNetUnfolder]: 35621/63477 cut-off events. [2021-04-28 22:30:47,367 INFO L130 PetriNetUnfolder]: For 85888/170262 co-relation queries the response was YES. [2021-04-28 22:30:47,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 282328 conditions, 63477 events. 35621/63477 cut-off events. For 85888/170262 co-relation queries the response was YES. Maximal size of possible extension queue 17778. Compared 779591 event pairs, 0 based on Foata normal form. 1/16415 useless extension candidates. Maximal degree in co-relation 282294. Up to 44928 conditions per place. [2021-04-28 22:30:48,510 INFO L146 LiptonReduction]: Number of co-enabled transitions 4370 [2021-04-28 22:30:48,583 INFO L158 LiptonReduction]: Checked pairs total: 2607 [2021-04-28 22:30:48,583 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:30:48,583 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6996 [2021-04-28 22:30:48,584 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 152 transitions, 1292 flow [2021-04-28 22:30:48,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 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 22:30:48,585 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:30:48,585 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:30:48,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 22:30:48,585 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:30:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:30:48,586 INFO L82 PathProgramCache]: Analyzing trace with hash 90895318, now seen corresponding path program 1 times [2021-04-28 22:30:48,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:30:48,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769474105] [2021-04-28 22:30:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:30:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:30:48,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:30:48,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:30:48,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:30:48,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:30:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:30:48,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:30:48,658 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 22:30:48,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769474105] [2021-04-28 22:30:48,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:30:48,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:30:48,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251008564] [2021-04-28 22:30:48,659 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:30:48,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:30:48,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:30:48,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:30:48,662 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 355 [2021-04-28 22:30:48,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 152 transitions, 1292 flow. Second operand has 4 states, 4 states have (on average 242.0) internal successors, (968), 4 states have internal predecessors, (968), 0 states have call successors, (0), 0 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 22:30:48,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:30:48,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 355 [2021-04-28 22:30:48,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:31:08,384 INFO L129 PetriNetUnfolder]: 70841/125866 cut-off events. [2021-04-28 22:31:08,385 INFO L130 PetriNetUnfolder]: For 176630/562401 co-relation queries the response was YES. [2021-04-28 22:31:09,133 INFO L84 FinitePrefix]: Finished finitePrefix Result has 559710 conditions, 125866 events. 70841/125866 cut-off events. For 176630/562401 co-relation queries the response was YES. Maximal size of possible extension queue 31260. Compared 1592163 event pairs, 0 based on Foata normal form. 86/33277 useless extension candidates. Maximal degree in co-relation 559674. Up to 89856 conditions per place. [2021-04-28 22:31:09,408 INFO L132 encePairwiseOnDemand]: 352/355 looper letters, 3 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2021-04-28 22:31:09,408 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 153 transitions, 1304 flow [2021-04-28 22:31:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:31:09,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:31:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 970 transitions. [2021-04-28 22:31:09,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6830985915492958 [2021-04-28 22:31:09,414 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 970 transitions. [2021-04-28 22:31:09,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 970 transitions. [2021-04-28 22:31:09,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:31:09,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 970 transitions. [2021-04-28 22:31:09,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 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 22:31:09,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:31:09,420 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 355.0) internal successors, (1775), 5 states have internal predecessors, (1775), 0 states have call successors, (0), 0 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 22:31:09,420 INFO L185 Difference]: Start difference. First operand has 106 places, 152 transitions, 1292 flow. Second operand 4 states and 970 transitions. [2021-04-28 22:31:09,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 153 transitions, 1304 flow