/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/mix044_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:11:50,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:11:50,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:11:50,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:11:50,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:11:50,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:11:50,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:11:50,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:11:50,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:11:50,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:11:50,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:11:50,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:11:50,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:11:50,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:11:50,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:11:50,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:11:50,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:11:50,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:11:50,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:11:50,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:11:50,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:11:50,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:11:50,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:11:50,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:11:50,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:11:50,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:11:50,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:11:50,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:11:50,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:11:50,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:11:50,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:11:50,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:11:50,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:11:50,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:11:50,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:11:50,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:11:50,499 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 21:11:50,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:11:50,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:11:50,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:11:50,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:11:50,552 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:11:50,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:11:50,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:11:50,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:11:50,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:11:50,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:11:50,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:11:50,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:11:50,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:11:50,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:11:50,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:11:50,556 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:11:50,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:11:50,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:11:50,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:11:50,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:11:50,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:11:50,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:11:50,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:11:50,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:11:50,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:11:50,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:11:50,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:11:50,558 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:11:50,559 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:11:50,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:11:50,559 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:11:50,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:11:50,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:11:50,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:11:50,959 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:11:50,960 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:11:50,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix044_pso.opt.i [2021-04-28 21:11:51,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04ce9d06a/77a3a649738c455a9c885009ec2faa82/FLAG1372f497f [2021-04-28 21:11:51,791 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:11:51,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix044_pso.opt.i [2021-04-28 21:11:51,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04ce9d06a/77a3a649738c455a9c885009ec2faa82/FLAG1372f497f [2021-04-28 21:11:52,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04ce9d06a/77a3a649738c455a9c885009ec2faa82 [2021-04-28 21:11:52,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:11:52,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:11:52,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:11:52,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:11:52,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:11:52,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:52,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5d9bce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52, skipping insertion in model container [2021-04-28 21:11:52,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:52,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:11:52,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:11:52,364 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/mix044_pso.opt.i[948,961] [2021-04-28 21:11:52,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:11:52,714 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:11:52,728 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/mix044_pso.opt.i[948,961] [2021-04-28 21:11:52,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:11:52,928 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:11:52,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52 WrapperNode [2021-04-28 21:11:52,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:11:52,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:11:52,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:11:52,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:11:52,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:52,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:11:53,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:11:53,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:11:53,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:11:53,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (1/1) ... [2021-04-28 21:11:53,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:11:53,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:11:53,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:11:53,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:11:53,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (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 21:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:11:53,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:11:53,205 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:11:53,205 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:11:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:11:53,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:11:53,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:11:53,208 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 21:11:55,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:11:55,093 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:11:55,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:11:55 BoogieIcfgContainer [2021-04-28 21:11:55,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:11:55,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:11:55,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:11:55,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:11:55,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:11:52" (1/3) ... [2021-04-28 21:11:55,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bbeed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:11:55, skipping insertion in model container [2021-04-28 21:11:55,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:11:52" (2/3) ... [2021-04-28 21:11:55,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bbeed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:11:55, skipping insertion in model container [2021-04-28 21:11:55,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:11:55" (3/3) ... [2021-04-28 21:11:55,105 INFO L111 eAbstractionObserver]: Analyzing ICFG mix044_pso.opt.i [2021-04-28 21:11:55,113 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:11:55,118 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:11:55,120 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:11:55,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,158 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,159 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,160 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,160 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,161 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,161 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,161 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,163 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,164 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,164 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,166 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,167 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,168 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,170 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,170 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,171 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,171 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,171 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,171 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,171 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,172 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,172 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,172 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,172 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,172 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,173 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,173 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,174 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,175 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,176 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,177 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,177 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,177 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,178 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,178 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,180 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,181 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,181 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,185 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,185 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,187 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,187 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,188 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,188 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,189 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,191 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,191 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,192 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,193 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,193 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:11:55,195 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:11:55,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:11:55,245 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:11:55,245 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:11:55,245 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:11:55,245 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:11:55,245 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:11:55,245 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:11:55,246 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:11:55,246 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:11:55,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:11:55,320 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:11:55,320 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:11:55,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:11:55,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 21:11:55,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 21:11:55,335 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:11:55,353 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:11:55,357 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 21:11:55,360 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 21:11:55,391 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 21:11:55,391 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:11:55,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 113 events. 2/113 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:11:55,397 INFO L146 LiptonReduction]: Number of co-enabled transitions 2598 [2021-04-28 21:11:59,095 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:11:59,721 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 21:11:59,955 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:12:01,133 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:12:02,108 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:12:04,470 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:12:05,538 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:12:09,962 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 21:12:10,475 WARN L205 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:12:12,873 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:12:14,035 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:12:15,305 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 21:12:15,852 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:12:18,397 WARN L205 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:12:19,520 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:12:20,814 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 21:12:21,388 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 21:12:24,089 WARN L205 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 21:12:25,334 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 21:12:30,641 WARN L205 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 21:12:31,282 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:12:34,102 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:12:35,420 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:12:36,880 WARN L205 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 21:12:38,217 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2021-04-28 21:12:41,270 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:12:42,667 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:12:44,833 WARN L205 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:12:45,518 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:12:48,791 WARN L205 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:12:50,201 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:12:51,784 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:12:52,562 WARN L205 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:12:55,890 WARN L205 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:12:57,448 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:12:59,245 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:12:59,346 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:12:59,455 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:12:59,558 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:13:00,030 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:00,139 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:00,253 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:00,365 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:01,481 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:13:04,024 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 21:13:04,825 WARN L205 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:13:08,645 WARN L205 SmtUtils]: Spent 3.82 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 21:13:10,385 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 21:13:12,281 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 21:13:13,139 WARN L205 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:13:17,020 WARN L205 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 21:13:18,826 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:13:20,838 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 21:13:21,746 WARN L205 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:13:25,948 WARN L205 SmtUtils]: Spent 4.20 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 21:13:27,844 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:13:27,983 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:13:28,093 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:13:28,202 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:13:28,310 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 21:13:29,378 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:13:29,498 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:13:29,621 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:13:29,743 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:13:31,508 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:13:31,627 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:13:31,736 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:13:31,845 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 21:13:33,933 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:13:34,047 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:13:34,162 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:13:34,277 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:13:35,244 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:13:35,405 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:13:35,568 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:13:35,725 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:13:35,857 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:35,993 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:36,142 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:36,297 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:36,458 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:36,621 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:36,779 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:36,937 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:37,127 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:13:37,307 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:13:37,495 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:13:37,689 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:13:37,857 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,025 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,176 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,330 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,490 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,644 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,797 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:38,958 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:39,144 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:13:39,323 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:13:39,518 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:13:39,705 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:13:39,886 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:13:40,067 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:13:40,234 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:13:40,403 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:13:40,584 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:40,730 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:40,876 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:41,020 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:41,248 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:13:41,475 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:13:41,713 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:13:41,944 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 21:13:42,076 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:42,209 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:42,340 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:42,472 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:13:42,685 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:13:42,902 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:13:43,113 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:13:43,327 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 21:13:43,473 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:43,618 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:43,765 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:43,910 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:44,056 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:44,202 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:44,348 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:44,492 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:44,611 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:13:44,733 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:13:44,855 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:13:44,976 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:13:45,114 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:45,254 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:45,394 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:45,532 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:45,659 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:45,796 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:45,923 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:46,049 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:13:46,196 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:46,339 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:46,484 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:46,629 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:13:46,767 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:46,907 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:47,043 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:47,182 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:13:47,419 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:13:47,660 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:13:47,901 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:13:48,136 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:13:48,392 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:48,632 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:48,896 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:49,162 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:49,388 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:49,620 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:49,860 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:50,091 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:50,386 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:13:50,691 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:13:50,989 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:13:51,287 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:13:51,573 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:13:51,860 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:13:52,144 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:13:52,432 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:13:52,639 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:13:52,841 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:13:53,042 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:13:53,242 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:13:53,506 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:13:53,762 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:13:54,028 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:13:54,291 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:13:54,562 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:13:54,824 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:13:55,100 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:13:55,373 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:13:55,639 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:55,908 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:56,163 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:56,428 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 21:13:56,662 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:56,890 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:57,110 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:57,329 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:57,533 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:13:57,729 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:13:57,937 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:13:58,147 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:13:58,376 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:13:58,601 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:13:58,816 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:13:59,024 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:13:59,257 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:59,489 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:59,729 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:13:59,968 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:14:00,197 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:14:00,416 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:14:00,648 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:14:00,881 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:14:01,111 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:14:01,307 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:14:01,510 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:14:01,712 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:14:02,056 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:02,396 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:02,748 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:03,094 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:03,412 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:14:03,727 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:14:04,039 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:14:04,356 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:14:04,698 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:05,043 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:05,418 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:05,782 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:06,106 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:06,429 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:06,764 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:07,097 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:07,982 WARN L205 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:14:08,393 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:14:09,277 WARN L205 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 21:14:09,695 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 21:14:10,045 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:10,384 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:10,737 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:11,086 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:11,411 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:11,748 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:12,105 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:12,451 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:14:12,770 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:14:13,093 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:14:13,394 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:14:13,718 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:14:14,083 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:14,436 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:14,757 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:15,080 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 21:14:15,394 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:14:15,710 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:14:16,050 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:14:16,381 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:14:17,359 WARN L205 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:14:17,806 WARN L205 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:14:18,758 WARN L205 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 21:14:19,203 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 21:14:19,260 INFO L158 LiptonReduction]: Checked pairs total: 24899 [2021-04-28 21:14:19,260 INFO L160 LiptonReduction]: Total number of compositions: 262 [2021-04-28 21:14:19,266 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143932 [2021-04-28 21:14:19,294 INFO L129 PetriNetUnfolder]: 2/102 cut-off events. [2021-04-28 21:14:19,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:14:19,295 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:19,296 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:19,296 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:19,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:19,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398300, now seen corresponding path program 1 times [2021-04-28 21:14:19,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:19,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271210645] [2021-04-28 21:14:19,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:19,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:19,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:14:19,699 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 21:14:19,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271210645] [2021-04-28 21:14:19,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:19,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:14:19,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297641427] [2021-04-28 21:14:19,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:14:19,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:14:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:14:19,732 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 379 [2021-04-28 21:14:19,739 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 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 21:14:19,739 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:19,739 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 379 [2021-04-28 21:14:19,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:20,301 INFO L129 PetriNetUnfolder]: 212/677 cut-off events. [2021-04-28 21:14:20,302 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:14:20,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1083 conditions, 677 events. 212/677 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 5244 event pairs, 16 based on Foata normal form. 10/308 useless extension candidates. Maximal degree in co-relation 1006. Up to 333 conditions per place. [2021-04-28 21:14:20,309 INFO L132 encePairwiseOnDemand]: 361/379 looper letters, 7 selfloop transitions, 4 changer transitions 102/154 dead transitions. [2021-04-28 21:14:20,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 154 transitions, 418 flow [2021-04-28 21:14:20,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:14:20,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:14:20,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 21:14:20,334 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8469656992084432 [2021-04-28 21:14:20,334 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 21:14:20,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 21:14:20,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:20,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 21:14:20,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 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 21:14:20,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 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 21:14:20,362 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 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 21:14:20,364 INFO L185 Difference]: Start difference. First operand has 153 places, 142 transitions, 296 flow. Second operand 3 states and 963 transitions. [2021-04-28 21:14:20,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 154 transitions, 418 flow [2021-04-28 21:14:20,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 154 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:14:20,372 INFO L241 Difference]: Finished difference. Result has 148 places, 49 transitions, 114 flow [2021-04-28 21:14:20,374 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=148, PETRI_TRANSITIONS=49} [2021-04-28 21:14:20,375 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -5 predicate places. [2021-04-28 21:14:20,375 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:20,376 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:14:20,376 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 148 places, 49 transitions, 114 flow [2021-04-28 21:14:20,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 114 flow [2021-04-28 21:14:20,384 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 21:14:20,384 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:14:20,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 172 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 21:14:20,386 INFO L146 LiptonReduction]: Number of co-enabled transitions 1464 [2021-04-28 21:14:20,762 INFO L158 LiptonReduction]: Checked pairs total: 1426 [2021-04-28 21:14:20,762 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:14:20,762 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 387 [2021-04-28 21:14:20,765 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 114 flow [2021-04-28 21:14:20,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 304.6666666666667) internal successors, (914), 3 states have internal predecessors, (914), 0 states have call successors, (0), 0 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 21:14:20,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:20,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:20,766 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:14:20,766 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:20,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:20,767 INFO L82 PathProgramCache]: Analyzing trace with hash 409763528, now seen corresponding path program 1 times [2021-04-28 21:14:20,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:20,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785772959] [2021-04-28 21:14:20,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:20,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:20,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:20,948 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 21:14:20,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785772959] [2021-04-28 21:14:20,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:20,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:14:20,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591617126] [2021-04-28 21:14:20,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:14:20,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:20,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:14:20,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:14:20,955 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 379 [2021-04-28 21:14:20,957 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 21:14:20,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:20,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 379 [2021-04-28 21:14:20,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:20,989 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:14:20,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:14:20,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 228 event pairs, 1 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 21:14:20,992 INFO L132 encePairwiseOnDemand]: 375/379 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 21:14:20,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 130 flow [2021-04-28 21:14:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:14:20,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:14:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 838 transitions. [2021-04-28 21:14:20,998 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7370272647317502 [2021-04-28 21:14:20,998 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 838 transitions. [2021-04-28 21:14:20,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 838 transitions. [2021-04-28 21:14:20,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:20,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 838 transitions. [2021-04-28 21:14:21,002 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.3333333333333) internal successors, (838), 3 states have internal predecessors, (838), 0 states have call successors, (0), 0 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 21:14:21,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 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 21:14:21,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 379.0) internal successors, (1516), 4 states have internal predecessors, (1516), 0 states have call successors, (0), 0 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 21:14:21,007 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 114 flow. Second operand 3 states and 838 transitions. [2021-04-28 21:14:21,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 130 flow [2021-04-28 21:14:21,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:14:21,010 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 21:14:21,010 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=379, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 21:14:21,011 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -92 predicate places. [2021-04-28 21:14:21,011 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:21,011 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:14:21,011 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 21:14:21,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 21:14:21,021 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:14:21,021 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:14:21,022 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 247 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 78. Up to 10 conditions per place. [2021-04-28 21:14:21,023 INFO L146 LiptonReduction]: Number of co-enabled transitions 1586 [2021-04-28 21:14:21,994 INFO L158 LiptonReduction]: Checked pairs total: 2304 [2021-04-28 21:14:21,994 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 21:14:21,995 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 984 [2021-04-28 21:14:21,996 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 21:14:21,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 277.6666666666667) internal successors, (833), 3 states have internal predecessors, (833), 0 states have call successors, (0), 0 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 21:14:21,998 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:21,998 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:21,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:14:21,998 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:21,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:21,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1422161633, now seen corresponding path program 1 times [2021-04-28 21:14:21,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:21,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443639193] [2021-04-28 21:14:21,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:22,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:22,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:22,106 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 21:14:22,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443639193] [2021-04-28 21:14:22,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:22,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:14:22,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863877526] [2021-04-28 21:14:22,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:14:22,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:22,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:14:22,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:14:22,112 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 380 [2021-04-28 21:14:22,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 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 21:14:22,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:22,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 380 [2021-04-28 21:14:22,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:22,136 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:14:22,136 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 21:14:22,137 INFO L84 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 63 events. 3/63 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 232 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 21:14:22,138 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 1 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2021-04-28 21:14:22,138 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 51 transitions, 131 flow [2021-04-28 21:14:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:14:22,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:14:22,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2021-04-28 21:14:22,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7008771929824561 [2021-04-28 21:14:22,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2021-04-28 21:14:22,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2021-04-28 21:14:22,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:22,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2021-04-28 21:14:22,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 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 21:14:22,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 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 21:14:22,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 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 21:14:22,152 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 3 states and 799 transitions. [2021-04-28 21:14:22,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 51 transitions, 131 flow [2021-04-28 21:14:22,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 51 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:14:22,158 INFO L241 Difference]: Finished difference. Result has 63 places, 51 transitions, 130 flow [2021-04-28 21:14:22,158 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2021-04-28 21:14:22,158 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -90 predicate places. [2021-04-28 21:14:22,158 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:22,158 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:14:22,160 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 63 places, 51 transitions, 130 flow [2021-04-28 21:14:22,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 51 transitions, 130 flow [2021-04-28 21:14:22,170 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2021-04-28 21:14:22,170 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 21:14:22,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 63 events. 3/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 243 event pairs, 1 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 81. Up to 10 conditions per place. [2021-04-28 21:14:22,173 INFO L146 LiptonReduction]: Number of co-enabled transitions 1576 [2021-04-28 21:14:22,286 INFO L158 LiptonReduction]: Checked pairs total: 1053 [2021-04-28 21:14:22,286 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:14:22,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-04-28 21:14:22,288 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 130 flow [2021-04-28 21:14:22,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 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 21:14:22,289 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:22,289 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:22,289 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:14:22,289 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:22,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:22,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1354327224, now seen corresponding path program 1 times [2021-04-28 21:14:22,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:22,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715778737] [2021-04-28 21:14:22,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:22,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:22,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:14:22,433 INFO L142 QuantifierPusher]: treesize reduction 35, result has 23.9 percent of original size [2021-04-28 21:14:22,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:14:22,464 INFO L142 QuantifierPusher]: treesize reduction 45, result has 21.1 percent of original size [2021-04-28 21:14:22,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-04-28 21:14:22,488 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 21:14:22,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715778737] [2021-04-28 21:14:22,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:22,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:14:22,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48551714] [2021-04-28 21:14:22,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:14:22,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:22,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:14:22,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:14:22,493 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 380 [2021-04-28 21:14:22,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 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 21:14:22,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:22,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 380 [2021-04-28 21:14:22,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:22,701 INFO L129 PetriNetUnfolder]: 50/213 cut-off events. [2021-04-28 21:14:22,701 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2021-04-28 21:14:22,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 213 events. 50/213 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1171 event pairs, 4 based on Foata normal form. 3/139 useless extension candidates. Maximal degree in co-relation 361. Up to 46 conditions per place. [2021-04-28 21:14:22,705 INFO L132 encePairwiseOnDemand]: 372/380 looper letters, 10 selfloop transitions, 12 changer transitions 0/63 dead transitions. [2021-04-28 21:14:22,706 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 201 flow [2021-04-28 21:14:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:14:22,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:14:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1211 transitions. [2021-04-28 21:14:22,713 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6373684210526316 [2021-04-28 21:14:22,713 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1211 transitions. [2021-04-28 21:14:22,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1211 transitions. [2021-04-28 21:14:22,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:22,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1211 transitions. [2021-04-28 21:14:22,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 242.2) internal successors, (1211), 5 states have internal predecessors, (1211), 0 states have call successors, (0), 0 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 21:14:22,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 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 21:14:22,725 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 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 21:14:22,726 INFO L185 Difference]: Start difference. First operand has 63 places, 51 transitions, 130 flow. Second operand 5 states and 1211 transitions. [2021-04-28 21:14:22,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 201 flow [2021-04-28 21:14:22,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:14:22,728 INFO L241 Difference]: Finished difference. Result has 67 places, 58 transitions, 189 flow [2021-04-28 21:14:22,729 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2021-04-28 21:14:22,729 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -86 predicate places. [2021-04-28 21:14:22,729 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:22,729 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 189 flow [2021-04-28 21:14:22,729 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 189 flow [2021-04-28 21:14:22,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 189 flow [2021-04-28 21:14:22,753 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2021-04-28 21:14:22,753 INFO L130 PetriNetUnfolder]: For 51/57 co-relation queries the response was YES. [2021-04-28 21:14:22,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 134 events. 19/134 cut-off events. For 51/57 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 678 event pairs, 6 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 232. Up to 27 conditions per place. [2021-04-28 21:14:22,758 INFO L146 LiptonReduction]: Number of co-enabled transitions 1910 [2021-04-28 21:14:22,997 INFO L158 LiptonReduction]: Checked pairs total: 628 [2021-04-28 21:14:22,997 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:14:22,997 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 268 [2021-04-28 21:14:22,999 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 189 flow [2021-04-28 21:14:23,000 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 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 21:14:23,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:23,000 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:23,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:14:23,000 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:23,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:23,001 INFO L82 PathProgramCache]: Analyzing trace with hash 65163209, now seen corresponding path program 1 times [2021-04-28 21:14:23,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:23,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901200947] [2021-04-28 21:14:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:23,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:23,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:23,147 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:14:23,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:14:23,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:23,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:14:23,170 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 21:14:23,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901200947] [2021-04-28 21:14:23,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:23,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:14:23,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823434825] [2021-04-28 21:14:23,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:14:23,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:23,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:14:23,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:14:23,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:14:23,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 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 21:14:23,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:23,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:14:23,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:28,151 INFO L129 PetriNetUnfolder]: 25321/37106 cut-off events. [2021-04-28 21:14:28,151 INFO L130 PetriNetUnfolder]: For 2679/3216 co-relation queries the response was YES. [2021-04-28 21:14:28,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75437 conditions, 37106 events. 25321/37106 cut-off events. For 2679/3216 co-relation queries the response was YES. Maximal size of possible extension queue 7998. Compared 333966 event pairs, 13552 based on Foata normal form. 649/10154 useless extension candidates. Maximal degree in co-relation 75423. Up to 23323 conditions per place. [2021-04-28 21:14:28,642 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 34 selfloop transitions, 33 changer transitions 0/102 dead transitions. [2021-04-28 21:14:28,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 102 transitions, 411 flow [2021-04-28 21:14:28,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:14:28,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:14:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1496 transitions. [2021-04-28 21:14:28,651 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7873684210526316 [2021-04-28 21:14:28,651 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1496 transitions. [2021-04-28 21:14:28,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1496 transitions. [2021-04-28 21:14:28,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:28,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1496 transitions. [2021-04-28 21:14:28,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 299.2) internal successors, (1496), 5 states have internal predecessors, (1496), 0 states have call successors, (0), 0 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 21:14:28,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 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 21:14:28,665 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 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 21:14:28,666 INFO L185 Difference]: Start difference. First operand has 67 places, 58 transitions, 189 flow. Second operand 5 states and 1496 transitions. [2021-04-28 21:14:28,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 102 transitions, 411 flow [2021-04-28 21:14:28,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 102 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:14:28,675 INFO L241 Difference]: Finished difference. Result has 73 places, 89 transitions, 432 flow [2021-04-28 21:14:28,675 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=432, PETRI_PLACES=73, PETRI_TRANSITIONS=89} [2021-04-28 21:14:28,675 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -80 predicate places. [2021-04-28 21:14:28,675 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:28,676 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 89 transitions, 432 flow [2021-04-28 21:14:28,676 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 89 transitions, 432 flow [2021-04-28 21:14:28,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 89 transitions, 432 flow [2021-04-28 21:14:31,822 INFO L129 PetriNetUnfolder]: 22804/33862 cut-off events. [2021-04-28 21:14:31,822 INFO L130 PetriNetUnfolder]: For 7426/26737 co-relation queries the response was YES. [2021-04-28 21:14:31,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97095 conditions, 33862 events. 22804/33862 cut-off events. For 7426/26737 co-relation queries the response was YES. Maximal size of possible extension queue 6912. Compared 299692 event pairs, 12822 based on Foata normal form. 50/8976 useless extension candidates. Maximal degree in co-relation 97079. Up to 32036 conditions per place. [2021-04-28 21:14:32,456 INFO L146 LiptonReduction]: Number of co-enabled transitions 2922 [2021-04-28 21:14:32,515 INFO L158 LiptonReduction]: Checked pairs total: 1027 [2021-04-28 21:14:32,515 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:14:32,515 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3840 [2021-04-28 21:14:32,518 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 89 transitions, 432 flow [2021-04-28 21:14:32,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 0 states have call successors, (0), 0 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 21:14:32,520 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:32,520 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:14:32,520 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:14:32,520 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:32,531 INFO L82 PathProgramCache]: Analyzing trace with hash -504276637, now seen corresponding path program 1 times [2021-04-28 21:14:32,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:32,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976347664] [2021-04-28 21:14:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:32,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:32,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:32,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:32,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:32,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:32,706 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:14:32,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:14:32,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:32,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:14:32,732 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 21:14:32,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976347664] [2021-04-28 21:14:32,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:32,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:14:32,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108730212] [2021-04-28 21:14:32,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:14:32,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:32,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:14:32,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:14:32,736 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:14:32,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 89 transitions, 432 flow. Second operand has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 21:14:32,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:32,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:14:32,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:37,285 INFO L129 PetriNetUnfolder]: 27613/42884 cut-off events. [2021-04-28 21:14:37,286 INFO L130 PetriNetUnfolder]: For 13816/130930 co-relation queries the response was YES. [2021-04-28 21:14:37,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164206 conditions, 42884 events. 27613/42884 cut-off events. For 13816/130930 co-relation queries the response was YES. Maximal size of possible extension queue 9726. Compared 410005 event pairs, 4951 based on Foata normal form. 724/13198 useless extension candidates. Maximal degree in co-relation 164188. Up to 39764 conditions per place. [2021-04-28 21:14:37,751 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 35 selfloop transitions, 64 changer transitions 0/134 dead transitions. [2021-04-28 21:14:37,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 134 transitions, 879 flow [2021-04-28 21:14:37,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:14:37,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:14:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2098 transitions. [2021-04-28 21:14:37,761 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7887218045112782 [2021-04-28 21:14:37,761 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2098 transitions. [2021-04-28 21:14:37,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2098 transitions. [2021-04-28 21:14:37,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:37,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2098 transitions. [2021-04-28 21:14:37,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 299.7142857142857) internal successors, (2098), 7 states have internal predecessors, (2098), 0 states have call successors, (0), 0 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 21:14:37,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 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 21:14:37,776 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 380.0) internal successors, (3040), 8 states have internal predecessors, (3040), 0 states have call successors, (0), 0 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 21:14:37,776 INFO L185 Difference]: Start difference. First operand has 73 places, 89 transitions, 432 flow. Second operand 7 states and 2098 transitions. [2021-04-28 21:14:37,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 134 transitions, 879 flow [2021-04-28 21:14:37,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 134 transitions, 879 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 21:14:37,856 INFO L241 Difference]: Finished difference. Result has 82 places, 120 transitions, 874 flow [2021-04-28 21:14:37,857 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=874, PETRI_PLACES=82, PETRI_TRANSITIONS=120} [2021-04-28 21:14:37,857 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -71 predicate places. [2021-04-28 21:14:37,857 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:37,857 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 120 transitions, 874 flow [2021-04-28 21:14:37,857 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 120 transitions, 874 flow [2021-04-28 21:14:37,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 120 transitions, 874 flow [2021-04-28 21:14:41,903 INFO L129 PetriNetUnfolder]: 25698/40300 cut-off events. [2021-04-28 21:14:41,903 INFO L130 PetriNetUnfolder]: For 31455/129789 co-relation queries the response was YES. [2021-04-28 21:14:42,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190333 conditions, 40300 events. 25698/40300 cut-off events. For 31455/129789 co-relation queries the response was YES. Maximal size of possible extension queue 8307. Compared 394630 event pairs, 5137 based on Foata normal form. 57/11087 useless extension candidates. Maximal degree in co-relation 190312. Up to 38285 conditions per place. [2021-04-28 21:14:42,652 INFO L146 LiptonReduction]: Number of co-enabled transitions 4114 [2021-04-28 21:14:42,734 INFO L158 LiptonReduction]: Checked pairs total: 1978 [2021-04-28 21:14:42,734 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:14:42,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4877 [2021-04-28 21:14:42,736 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 120 transitions, 874 flow [2021-04-28 21:14:42,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 286.8) internal successors, (1434), 5 states have internal predecessors, (1434), 0 states have call successors, (0), 0 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 21:14:42,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:14:42,737 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 21:14:42,737 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:14:42,737 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:14:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:14:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash -848767275, now seen corresponding path program 1 times [2021-04-28 21:14:42,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:14:42,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099971620] [2021-04-28 21:14:42,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:14:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:14:42,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:42,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:14:42,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:14:42,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:14:42,833 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 21:14:42,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099971620] [2021-04-28 21:14:42,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:14:42,834 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:14:42,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931985243] [2021-04-28 21:14:42,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:14:42,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:14:42,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:14:42,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:14:42,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 380 [2021-04-28 21:14:42,839 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 120 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 21:14:42,839 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:14:42,839 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 380 [2021-04-28 21:14:42,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:14:49,919 INFO L129 PetriNetUnfolder]: 44772/68513 cut-off events. [2021-04-28 21:14:49,919 INFO L130 PetriNetUnfolder]: For 56802/279191 co-relation queries the response was YES. [2021-04-28 21:14:50,179 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326472 conditions, 68513 events. 44772/68513 cut-off events. For 56802/279191 co-relation queries the response was YES. Maximal size of possible extension queue 14889. Compared 663249 event pairs, 9325 based on Foata normal form. 453/18744 useless extension candidates. Maximal degree in co-relation 326449. Up to 66149 conditions per place. [2021-04-28 21:14:50,397 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 3 selfloop transitions, 3 changer transitions 0/120 dead transitions. [2021-04-28 21:14:50,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 120 transitions, 886 flow [2021-04-28 21:14:50,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:14:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:14:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2021-04-28 21:14:50,403 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7368421052631579 [2021-04-28 21:14:50,403 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 840 transitions. [2021-04-28 21:14:50,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 840 transitions. [2021-04-28 21:14:50,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:14:50,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 840 transitions. [2021-04-28 21:14:50,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 280.0) internal successors, (840), 3 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:14:50,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 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 21:14:50,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 380.0) internal successors, (1520), 4 states have internal predecessors, (1520), 0 states have call successors, (0), 0 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 21:14:50,410 INFO L185 Difference]: Start difference. First operand has 82 places, 120 transitions, 874 flow. Second operand 3 states and 840 transitions. [2021-04-28 21:14:50,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 120 transitions, 886 flow [2021-04-28 21:14:52,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 120 transitions, 724 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 21:14:52,658 INFO L241 Difference]: Finished difference. Result has 82 places, 120 transitions, 723 flow [2021-04-28 21:14:52,658 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=723, PETRI_PLACES=82, PETRI_TRANSITIONS=120} [2021-04-28 21:14:52,658 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -71 predicate places. [2021-04-28 21:14:52,658 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:14:52,658 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 120 transitions, 723 flow [2021-04-28 21:14:52,659 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 120 transitions, 723 flow [2021-04-28 21:14:52,660 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 120 transitions, 723 flow [2021-04-28 21:14:59,262 INFO L129 PetriNetUnfolder]: 45165/68851 cut-off events. [2021-04-28 21:14:59,262 INFO L130 PetriNetUnfolder]: For 77690/103553 co-relation queries the response was YES. [2021-04-28 21:14:59,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310317 conditions, 68851 events. 45165/68851 cut-off events. For 77690/103553 co-relation queries the response was YES. Maximal size of possible extension queue 14723. Compared 680385 event pairs, 9499 based on Foata normal form. 58/18370 useless extension candidates. Maximal degree in co-relation 310296. Up to 59524 conditions per place. [2021-04-28 21:15:00,491 INFO L146 LiptonReduction]: Number of co-enabled transitions 4112 [2021-04-28 21:15:02,694 INFO L158 LiptonReduction]: Checked pairs total: 1978 [2021-04-28 21:15:02,694 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:15:02,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10036 [2021-04-28 21:15:02,696 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 120 transitions, 723 flow [2021-04-28 21:15:02,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 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 21:15:02,696 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:15:02,696 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 21:15:02,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:15:02,697 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:15:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:15:02,697 INFO L82 PathProgramCache]: Analyzing trace with hash -2136070736, now seen corresponding path program 1 times [2021-04-28 21:15:02,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:15:02,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479568143] [2021-04-28 21:15:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:15:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:15:02,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:02,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:15:02,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:15:02,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:02,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:15:02,814 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:15:02,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:15:02,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:02,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:15:02,845 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 21:15:02,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479568143] [2021-04-28 21:15:02,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:15:02,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:15:02,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575341641] [2021-04-28 21:15:02,846 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:15:02,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:15:02,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:15:02,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:15:02,849 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:15:02,852 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 120 transitions, 723 flow. Second operand has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 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 21:15:02,852 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:15:02,852 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:15:02,852 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:15:11,690 INFO L129 PetriNetUnfolder]: 44961/72932 cut-off events. [2021-04-28 21:15:11,691 INFO L130 PetriNetUnfolder]: For 89682/469686 co-relation queries the response was YES. [2021-04-28 21:15:11,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397177 conditions, 72932 events. 44961/72932 cut-off events. For 89682/469686 co-relation queries the response was YES. Maximal size of possible extension queue 16065. Compared 773062 event pairs, 1324 based on Foata normal form. 1167/21700 useless extension candidates. Maximal degree in co-relation 397154. Up to 61786 conditions per place. [2021-04-28 21:15:12,181 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 24 selfloop transitions, 95 changer transitions 12/166 dead transitions. [2021-04-28 21:15:12,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 166 transitions, 1394 flow [2021-04-28 21:15:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 21:15:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 21:15:12,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2700 transitions. [2021-04-28 21:15:12,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7894736842105263 [2021-04-28 21:15:12,193 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2700 transitions. [2021-04-28 21:15:12,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2700 transitions. [2021-04-28 21:15:12,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:15:12,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2700 transitions. [2021-04-28 21:15:12,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 300.0) internal successors, (2700), 9 states have internal predecessors, (2700), 0 states have call successors, (0), 0 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 21:15:12,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 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 21:15:12,211 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 380.0) internal successors, (3800), 10 states have internal predecessors, (3800), 0 states have call successors, (0), 0 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 21:15:12,211 INFO L185 Difference]: Start difference. First operand has 82 places, 120 transitions, 723 flow. Second operand 9 states and 2700 transitions. [2021-04-28 21:15:12,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 166 transitions, 1394 flow [2021-04-28 21:15:14,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 166 transitions, 1389 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 21:15:14,299 INFO L241 Difference]: Finished difference. Result has 92 places, 151 transitions, 1308 flow [2021-04-28 21:15:14,299 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1308, PETRI_PLACES=92, PETRI_TRANSITIONS=151} [2021-04-28 21:15:14,300 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -61 predicate places. [2021-04-28 21:15:14,300 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:15:14,300 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 151 transitions, 1308 flow [2021-04-28 21:15:14,300 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 151 transitions, 1308 flow [2021-04-28 21:15:14,301 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 151 transitions, 1308 flow [2021-04-28 21:15:20,707 INFO L129 PetriNetUnfolder]: 32712/56714 cut-off events. [2021-04-28 21:15:20,707 INFO L130 PetriNetUnfolder]: For 139594/209273 co-relation queries the response was YES. [2021-04-28 21:15:21,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 340719 conditions, 56714 events. 32712/56714 cut-off events. For 139594/209273 co-relation queries the response was YES. Maximal size of possible extension queue 13797. Compared 662423 event pairs, 1324 based on Foata normal form. 28/14762 useless extension candidates. Maximal degree in co-relation 340694. Up to 47287 conditions per place. [2021-04-28 21:15:21,809 INFO L146 LiptonReduction]: Number of co-enabled transitions 4680 [2021-04-28 21:15:23,151 INFO L158 LiptonReduction]: Checked pairs total: 2986 [2021-04-28 21:15:23,152 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:15:23,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8852 [2021-04-28 21:15:23,153 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 151 transitions, 1308 flow [2021-04-28 21:15:23,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 286.8333333333333) internal successors, (1721), 6 states have internal predecessors, (1721), 0 states have call successors, (0), 0 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 21:15:23,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:15:23,154 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 21:15:23,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:15:23,154 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:15:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:15:23,155 INFO L82 PathProgramCache]: Analyzing trace with hash 620926297, now seen corresponding path program 1 times [2021-04-28 21:15:23,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:15:23,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299516858] [2021-04-28 21:15:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:15:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:15:23,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:23,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:15:23,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:23,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:15:23,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:15:23,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:15:23,238 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 21:15:23,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299516858] [2021-04-28 21:15:23,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:15:23,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:15:23,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640817074] [2021-04-28 21:15:23,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:15:23,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:15:23,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:15:23,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:15:23,241 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 380 [2021-04-28 21:15:23,243 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 151 transitions, 1308 flow. Second operand has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 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 21:15:23,243 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:15:23,243 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 380 [2021-04-28 21:15:23,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:15:35,962 INFO L129 PetriNetUnfolder]: 57239/98659 cut-off events. [2021-04-28 21:15:35,962 INFO L130 PetriNetUnfolder]: For 305982/880705 co-relation queries the response was YES. [2021-04-28 21:15:36,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 591892 conditions, 98659 events. 57239/98659 cut-off events. For 305982/880705 co-relation queries the response was YES. Maximal size of possible extension queue 22653. Compared 1184892 event pairs, 2621 based on Foata normal form. 325/27143 useless extension candidates. Maximal degree in co-relation 591865. Up to 82189 conditions per place. [2021-04-28 21:15:36,699 INFO L132 encePairwiseOnDemand]: 377/380 looper letters, 4 selfloop transitions, 2 changer transitions 0/153 dead transitions. [2021-04-28 21:15:36,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 153 transitions, 1332 flow [2021-04-28 21:15:36,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:15:36,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:15:36,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1055 transitions. [2021-04-28 21:15:36,706 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.694078947368421 [2021-04-28 21:15:36,706 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1055 transitions. [2021-04-28 21:15:36,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1055 transitions. [2021-04-28 21:15:36,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:15:36,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1055 transitions. [2021-04-28 21:15:36,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 263.75) internal successors, (1055), 4 states have internal predecessors, (1055), 0 states have call successors, (0), 0 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 21:15:36,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 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 21:15:36,713 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 380.0) internal successors, (1900), 5 states have internal predecessors, (1900), 0 states have call successors, (0), 0 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 21:15:36,713 INFO L185 Difference]: Start difference. First operand has 92 places, 151 transitions, 1308 flow. Second operand 4 states and 1055 transitions. [2021-04-28 21:15:36,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 153 transitions, 1332 flow [2021-04-28 21:21:43,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 153 transitions, 1000 flow, removed 108 selfloop flow, removed 5 redundant places. [2021-04-28 21:21:43,497 INFO L241 Difference]: Finished difference. Result has 92 places, 152 transitions, 989 flow [2021-04-28 21:21:43,497 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=380, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=989, PETRI_PLACES=92, PETRI_TRANSITIONS=152} [2021-04-28 21:21:43,498 INFO L343 CegarLoopForPetriNet]: 153 programPoint places, -61 predicate places. [2021-04-28 21:21:43,498 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:21:43,498 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 152 transitions, 989 flow [2021-04-28 21:21:43,498 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 152 transitions, 989 flow [2021-04-28 21:21:43,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 152 transitions, 989 flow [2021-04-28 21:21:52,664 INFO L129 PetriNetUnfolder]: 57293/98686 cut-off events. [2021-04-28 21:21:52,664 INFO L130 PetriNetUnfolder]: For 94967/97928 co-relation queries the response was YES. [2021-04-28 21:21:53,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363224 conditions, 98686 events. 57293/98686 cut-off events. For 94967/97928 co-relation queries the response was YES. Maximal size of possible extension queue 22125. Compared 1191637 event pairs, 2621 based on Foata normal form. 28/26652 useless extension candidates. Maximal degree in co-relation 363198. Up to 53569 conditions per place. [2021-04-28 21:21:55,959 INFO L146 LiptonReduction]: Number of co-enabled transitions 4784 [2021-04-28 21:25:09,701 INFO L158 LiptonReduction]: Checked pairs total: 2583 [2021-04-28 21:25:09,702 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:25:09,702 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 206204 [2021-04-28 21:25:09,703 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 152 transitions, 989 flow [2021-04-28 21:25:09,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 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 21:25:09,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:25:09,704 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 21:25:09,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:25:09,704 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:25:09,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:25:09,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1081927835, now seen corresponding path program 1 times [2021-04-28 21:25:09,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:25:09,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879003447] [2021-04-28 21:25:09,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:25:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:25:09,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:09,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:09,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:09,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:09,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:09,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:09,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:09,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:25:09,827 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 21:25:09,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:25:09,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:25:09,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:25:09,862 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 21:25:09,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879003447] [2021-04-28 21:25:09,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:25:09,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:25:09,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379917369] [2021-04-28 21:25:09,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:25:09,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:25:09,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:25:09,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:25:09,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 380 [2021-04-28 21:25:09,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 152 transitions, 989 flow. Second operand has 7 states, 7 states have (on average 286.85714285714283) internal successors, (2008), 7 states have internal predecessors, (2008), 0 states have call successors, (0), 0 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 21:25:09,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:25:09,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 380 [2021-04-28 21:25:09,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:25:25,409 INFO L129 PetriNetUnfolder]: 57824/100693 cut-off events. [2021-04-28 21:25:25,409 INFO L130 PetriNetUnfolder]: For 102501/926118 co-relation queries the response was YES. [2021-04-28 21:25:25,969 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456222 conditions, 100693 events. 57824/100693 cut-off events. For 102501/926118 co-relation queries the response was YES. Maximal size of possible extension queue 23451. Compared 1215092 event pairs, 2 based on Foata normal form. 1551/29297 useless extension candidates. Maximal degree in co-relation 456194. Up to 58752 conditions per place. [2021-04-28 21:25:26,181 INFO L132 encePairwiseOnDemand]: 360/380 looper letters, 6 selfloop transitions, 113 changer transitions 20/175 dead transitions. [2021-04-28 21:25:26,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 175 transitions, 1476 flow [2021-04-28 21:25:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 21:25:26,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 21:25:26,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3278 transitions. [2021-04-28 21:25:26,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7842105263157895 [2021-04-28 21:25:26,193 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3278 transitions. [2021-04-28 21:25:26,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3278 transitions. [2021-04-28 21:25:26,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:25:26,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3278 transitions. [2021-04-28 21:25:26,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 298.0) internal successors, (3278), 11 states have internal predecessors, (3278), 0 states have call successors, (0), 0 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 21:25:26,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 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 21:25:26,213 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 380.0) internal successors, (4560), 12 states have internal predecessors, (4560), 0 states have call successors, (0), 0 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 21:25:26,213 INFO L185 Difference]: Start difference. First operand has 92 places, 152 transitions, 989 flow. Second operand 11 states and 3278 transitions. [2021-04-28 21:25:26,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 175 transitions, 1476 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown