/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/mix026_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:15:56,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:15:56,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:15:56,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:15:56,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:15:56,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:15:56,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:15:56,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:15:56,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:15:56,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:15:56,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:15:56,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:15:56,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:15:56,588 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:15:56,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:15:56,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:15:56,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:15:56,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:15:56,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:15:56,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:15:56,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:15:56,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:15:56,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:15:56,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:15:56,610 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:15:56,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:15:56,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:15:56,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:15:56,625 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 19:15:56,655 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:15:56,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:15:56,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:15:56,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:15:56,661 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:15:56,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:15:56,663 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:15:56,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:15:56,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:15:56,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:15:56,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:15:56,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:15:56,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:15:56,665 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:15:56,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:15:56,665 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:15:56,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:15:56,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:15:56,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:15:56,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:15:56,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:15:56,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:15:56,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:15:56,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:15:56,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:15:56,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:15:56,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:15:56,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:15:56,668 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:15:56,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:15:56,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:15:57,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:15:57,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:15:57,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:15:57,156 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:15:57,157 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:15:57,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix026_tso.opt.i [2021-04-28 19:15:57,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d932eb74f/e195ee0497e648de8a1b43d2dd94f805/FLAGf90086845 [2021-04-28 19:15:58,009 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:15:58,013 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix026_tso.opt.i [2021-04-28 19:15:58,051 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d932eb74f/e195ee0497e648de8a1b43d2dd94f805/FLAGf90086845 [2021-04-28 19:15:58,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d932eb74f/e195ee0497e648de8a1b43d2dd94f805 [2021-04-28 19:15:58,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:15:58,158 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:15:58,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:15:58,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:15:58,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:15:58,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:15:58" (1/1) ... [2021-04-28 19:15:58,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b17dcc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:58, skipping insertion in model container [2021-04-28 19:15:58,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:15:58" (1/1) ... [2021-04-28 19:15:58,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:15:58,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:15:58,530 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/mix026_tso.opt.i[991,1004] [2021-04-28 19:15:58,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:15:58,745 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:15:58,767 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/mix026_tso.opt.i[991,1004] [2021-04-28 19:15:58,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:15:59,026 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:15:59,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59 WrapperNode [2021-04-28 19:15:59,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:15:59,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:15:59,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:15:59,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:15:59,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:15:59,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:15:59,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:15:59,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:15:59,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (1/1) ... [2021-04-28 19:15:59,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:15:59,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:15:59,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:15:59,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:15:59,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (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 19:15:59,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:15:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:15:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:15:59,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:15:59,360 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:15:59,361 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:15:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:15:59,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:15:59,363 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:15:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:15:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:15:59,364 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:15:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:15:59,364 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:15:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:15:59,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:15:59,367 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 19:16:01,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:16:01,642 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:16:01,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:16:01 BoogieIcfgContainer [2021-04-28 19:16:01,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:16:01,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:16:01,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:16:01,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:16:01,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:15:58" (1/3) ... [2021-04-28 19:16:01,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ed79e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:16:01, skipping insertion in model container [2021-04-28 19:16:01,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:15:59" (2/3) ... [2021-04-28 19:16:01,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ed79e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:16:01, skipping insertion in model container [2021-04-28 19:16:01,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:16:01" (3/3) ... [2021-04-28 19:16:01,655 INFO L111 eAbstractionObserver]: Analyzing ICFG mix026_tso.opt.i [2021-04-28 19:16:01,662 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:16:01,668 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:16:01,669 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:16:01,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,717 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,717 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,718 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,718 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,718 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,719 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,720 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,721 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,722 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,723 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,724 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,725 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,726 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,737 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,739 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,740 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,740 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,741 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,743 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,747 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,747 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,752 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,754 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,756 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,759 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,759 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,759 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,760 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,761 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,762 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,762 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,762 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,762 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,762 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,763 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,764 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,766 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,767 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,768 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,769 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,770 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,770 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,770 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,770 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,770 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,771 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,771 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,771 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,771 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,773 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,773 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,774 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:16:01,784 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:16:01,807 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:16:01,832 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:16:01,832 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:16:01,832 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:16:01,832 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:16:01,833 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:16:01,833 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:16:01,833 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:16:01,833 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:16:01,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 19:16:01,901 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 19:16:01,901 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:01,906 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 88 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 19:16:01,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 117 transitions, 254 flow [2021-04-28 19:16:01,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 113 transitions, 238 flow [2021-04-28 19:16:01,914 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:16:01,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 19:16:01,933 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 124 places, 113 transitions, 238 flow [2021-04-28 19:16:01,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 113 transitions, 238 flow [2021-04-28 19:16:01,965 INFO L129 PetriNetUnfolder]: 2/113 cut-off events. [2021-04-28 19:16:01,965 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:01,967 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 86 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 19:16:01,971 INFO L146 LiptonReduction]: Number of co-enabled transitions 2638 [2021-04-28 19:16:04,942 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:16:05,064 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:16:05,630 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2021-04-28 19:16:05,877 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:16:07,448 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:16:07,568 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:16:07,813 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:16:08,091 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 19:16:16,079 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-28 19:16:20,083 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-28 19:16:20,187 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-28 19:16:20,645 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-28 19:16:20,835 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-04-28 19:16:22,616 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:16:22,813 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:16:22,917 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:16:23,635 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:16:23,750 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:16:23,901 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:16:24,005 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:16:24,107 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:16:24,760 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:16:24,954 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:16:26,289 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-04-28 19:16:27,325 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:16:27,536 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:16:27,646 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:16:27,763 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:16:27,876 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:16:28,002 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:16:28,118 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:16:28,241 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:16:28,355 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:16:29,009 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:29,133 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:16:29,295 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:29,413 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:16:29,615 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:16:29,818 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:16:30,026 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:16:30,225 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:16:30,395 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:16:30,563 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:16:30,735 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:16:30,905 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:16:31,065 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:31,229 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:31,390 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:31,552 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:31,694 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:31,833 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:32,008 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:32,150 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:32,333 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:16:32,514 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:16:32,695 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:16:32,876 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:16:33,028 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:16:33,177 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:16:33,322 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:16:33,472 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:16:33,689 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:33,903 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:34,118 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:34,335 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:34,535 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:16:34,742 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:16:34,974 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:16:35,180 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:16:35,399 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:35,618 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:35,839 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:36,058 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:36,188 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:36,315 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:36,443 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:36,574 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:16:36,718 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:36,857 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:36,999 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:37,142 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:37,278 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:16:37,414 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:16:37,547 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:16:37,680 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:16:37,855 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:38,015 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:38,172 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:38,330 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:16:38,569 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:38,800 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:39,019 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:39,244 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:39,446 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:16:39,647 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:16:39,858 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:16:40,054 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:16:40,245 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:40,435 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:40,624 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:40,814 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:41,004 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:41,189 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:41,390 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:41,582 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:16:41,801 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:42,023 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:42,241 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:42,450 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:42,621 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:42,791 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:42,954 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:43,123 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:16:43,670 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 19:16:43,927 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 19:16:44,464 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 19:16:44,744 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 19:16:44,963 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:45,179 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:45,394 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:45,615 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 19:16:46,134 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 19:16:46,386 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 19:16:46,903 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 19:16:47,146 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 19:16:47,300 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:16:47,454 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:16:47,612 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:16:47,774 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:16:47,949 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:16:48,148 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:16:48,335 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:16:48,521 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:16:48,570 INFO L158 LiptonReduction]: Checked pairs total: 27847 [2021-04-28 19:16:48,571 INFO L160 LiptonReduction]: Total number of compositions: 283 [2021-04-28 19:16:48,576 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 46664 [2021-04-28 19:16:48,604 INFO L129 PetriNetUnfolder]: 0/70 cut-off events. [2021-04-28 19:16:48,604 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:48,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:16:48,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 19:16:48,606 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:16:48,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:16:48,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1246335834, now seen corresponding path program 1 times [2021-04-28 19:16:48,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:16:48,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87573558] [2021-04-28 19:16:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:16:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:16:48,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:16:48,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:16:48,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 19:16:48,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87573558] [2021-04-28 19:16:48,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:16:48,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:16:48,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608335789] [2021-04-28 19:16:48,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:16:48,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:16:49,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:16:49,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:16:49,017 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 330 out of 400 [2021-04-28 19:16:49,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 145 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 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 19:16:49,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:16:49,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 330 of 400 [2021-04-28 19:16:49,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:16:49,273 INFO L129 PetriNetUnfolder]: 81/720 cut-off events. [2021-04-28 19:16:49,274 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:49,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 720 events. 81/720 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6320 event pairs, 51 based on Foata normal form. 45/219 useless extension candidates. Maximal degree in co-relation 795. Up to 97 conditions per place. [2021-04-28 19:16:49,286 INFO L132 encePairwiseOnDemand]: 381/400 looper letters, 9 selfloop transitions, 2 changer transitions 59/145 dead transitions. [2021-04-28 19:16:49,286 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 145 transitions, 350 flow [2021-04-28 19:16:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:16:49,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:16:49,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1021 transitions. [2021-04-28 19:16:49,311 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8508333333333333 [2021-04-28 19:16:49,312 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1021 transitions. [2021-04-28 19:16:49,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1021 transitions. [2021-04-28 19:16:49,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:16:49,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1021 transitions. [2021-04-28 19:16:49,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 0 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 19:16:49,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:16:49,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:16:49,342 INFO L185 Difference]: Start difference. First operand has 157 places, 145 transitions, 302 flow. Second operand 3 states and 1021 transitions. [2021-04-28 19:16:49,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 145 transitions, 350 flow [2021-04-28 19:16:49,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 145 transitions, 346 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:16:49,357 INFO L241 Difference]: Finished difference. Result has 152 places, 82 transitions, 176 flow [2021-04-28 19:16:49,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=152, PETRI_TRANSITIONS=82} [2021-04-28 19:16:49,361 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -5 predicate places. [2021-04-28 19:16:49,361 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:16:49,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 82 transitions, 176 flow [2021-04-28 19:16:49,361 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 82 transitions, 176 flow [2021-04-28 19:16:49,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 82 transitions, 176 flow [2021-04-28 19:16:49,375 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-04-28 19:16:49,375 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:49,375 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 82 events. 0/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 389 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:16:49,378 INFO L146 LiptonReduction]: Number of co-enabled transitions 3226 [2021-04-28 19:16:49,676 INFO L158 LiptonReduction]: Checked pairs total: 4142 [2021-04-28 19:16:49,677 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:16:49,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 316 [2021-04-28 19:16:49,679 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 176 flow [2021-04-28 19:16:49,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 330.6666666666667) internal successors, (992), 3 states have internal predecessors, (992), 0 states have call successors, (0), 0 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 19:16:49,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:16:49,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:16:49,681 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:16:49,681 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:16:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:16:49,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1801826301, now seen corresponding path program 1 times [2021-04-28 19:16:49,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:16:49,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351318122] [2021-04-28 19:16:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:16:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:16:49,816 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:16:49,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:16:49,830 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 19:16:49,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351318122] [2021-04-28 19:16:49,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:16:49,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:16:49,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668055063] [2021-04-28 19:16:49,832 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:16:49,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:16:49,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:16:49,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:16:49,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 400 [2021-04-28 19:16:49,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 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 19:16:49,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:16:49,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 400 [2021-04-28 19:16:49,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:16:51,351 INFO L129 PetriNetUnfolder]: 2929/7673 cut-off events. [2021-04-28 19:16:51,352 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:16:51,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12120 conditions, 7673 events. 2929/7673 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 90705 event pairs, 905 based on Foata normal form. 0/4839 useless extension candidates. Maximal degree in co-relation 12111. Up to 2996 conditions per place. [2021-04-28 19:16:51,403 INFO L132 encePairwiseOnDemand]: 377/400 looper letters, 7 selfloop transitions, 7 changer transitions 50/112 dead transitions. [2021-04-28 19:16:51,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 112 transitions, 364 flow [2021-04-28 19:16:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:16:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:16:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 793 transitions. [2021-04-28 19:16:51,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6608333333333334 [2021-04-28 19:16:51,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 793 transitions. [2021-04-28 19:16:51,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 793 transitions. [2021-04-28 19:16:51,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:16:51,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 793 transitions. [2021-04-28 19:16:51,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 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 19:16:51,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:16:51,416 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:16:51,416 INFO L185 Difference]: Start difference. First operand has 93 places, 82 transitions, 176 flow. Second operand 3 states and 793 transitions. [2021-04-28 19:16:51,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 112 transitions, 364 flow [2021-04-28 19:16:51,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 112 transitions, 360 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:16:51,420 INFO L241 Difference]: Finished difference. Result has 95 places, 62 transitions, 174 flow [2021-04-28 19:16:51,420 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=95, PETRI_TRANSITIONS=62} [2021-04-28 19:16:51,421 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -62 predicate places. [2021-04-28 19:16:51,421 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:16:51,421 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 62 transitions, 174 flow [2021-04-28 19:16:51,422 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 62 transitions, 174 flow [2021-04-28 19:16:51,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 174 flow [2021-04-28 19:16:51,506 INFO L129 PetriNetUnfolder]: 126/501 cut-off events. [2021-04-28 19:16:51,506 INFO L130 PetriNetUnfolder]: For 35/37 co-relation queries the response was YES. [2021-04-28 19:16:51,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 817 conditions, 501 events. 126/501 cut-off events. For 35/37 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3731 event pairs, 58 based on Foata normal form. 0/343 useless extension candidates. Maximal degree in co-relation 808. Up to 187 conditions per place. [2021-04-28 19:16:51,524 INFO L146 LiptonReduction]: Number of co-enabled transitions 2124 [2021-04-28 19:16:51,678 INFO L158 LiptonReduction]: Checked pairs total: 1194 [2021-04-28 19:16:51,679 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:16:51,679 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 258 [2021-04-28 19:16:51,681 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 174 flow [2021-04-28 19:16:51,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 244.66666666666666) internal successors, (734), 3 states have internal predecessors, (734), 0 states have call successors, (0), 0 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 19:16:51,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:16:51,682 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:16:51,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:16:51,683 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:16:51,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:16:51,683 INFO L82 PathProgramCache]: Analyzing trace with hash 22154927, now seen corresponding path program 1 times [2021-04-28 19:16:51,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:16:51,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352139067] [2021-04-28 19:16:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:16:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:16:51,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:16:51,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:16:51,762 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:16:51,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:16:51,777 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 19:16:51,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352139067] [2021-04-28 19:16:51,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:16:51,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:16:51,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147802476] [2021-04-28 19:16:51,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:16:51,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:16:51,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:16:51,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:16:51,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 400 [2021-04-28 19:16:51,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 244.75) internal successors, (979), 4 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 19:16:51,784 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:16:51,784 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 400 [2021-04-28 19:16:51,784 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:16:51,892 INFO L129 PetriNetUnfolder]: 87/347 cut-off events. [2021-04-28 19:16:51,892 INFO L130 PetriNetUnfolder]: For 51/135 co-relation queries the response was YES. [2021-04-28 19:16:51,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 742 conditions, 347 events. 87/347 cut-off events. For 51/135 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2180 event pairs, 12 based on Foata normal form. 9/252 useless extension candidates. Maximal degree in co-relation 731. Up to 134 conditions per place. [2021-04-28 19:16:51,898 INFO L132 encePairwiseOnDemand]: 393/400 looper letters, 12 selfloop transitions, 7 changer transitions 0/67 dead transitions. [2021-04-28 19:16:51,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 238 flow [2021-04-28 19:16:51,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:16:51,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:16:51,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 991 transitions. [2021-04-28 19:16:51,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.619375 [2021-04-28 19:16:51,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 991 transitions. [2021-04-28 19:16:51,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 991 transitions. [2021-04-28 19:16:51,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:16:51,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 991 transitions. [2021-04-28 19:16:51,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 247.75) internal successors, (991), 4 states have internal predecessors, (991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:16:51,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:16:51,915 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:16:51,915 INFO L185 Difference]: Start difference. First operand has 69 places, 62 transitions, 174 flow. Second operand 4 states and 991 transitions. [2021-04-28 19:16:51,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 238 flow [2021-04-28 19:16:51,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:16:51,920 INFO L241 Difference]: Finished difference. Result has 73 places, 65 transitions, 208 flow [2021-04-28 19:16:51,920 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=73, PETRI_TRANSITIONS=65} [2021-04-28 19:16:51,920 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -84 predicate places. [2021-04-28 19:16:51,920 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:16:51,921 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 65 transitions, 208 flow [2021-04-28 19:16:51,921 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 65 transitions, 208 flow [2021-04-28 19:16:51,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 65 transitions, 208 flow [2021-04-28 19:16:51,987 INFO L129 PetriNetUnfolder]: 87/365 cut-off events. [2021-04-28 19:16:51,988 INFO L130 PetriNetUnfolder]: For 92/99 co-relation queries the response was YES. [2021-04-28 19:16:51,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 365 events. 87/365 cut-off events. For 92/99 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2436 event pairs, 40 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 663. Up to 134 conditions per place. [2021-04-28 19:16:52,002 INFO L146 LiptonReduction]: Number of co-enabled transitions 2272 [2021-04-28 19:16:52,011 INFO L158 LiptonReduction]: Checked pairs total: 1386 [2021-04-28 19:16:52,011 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:16:52,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-04-28 19:16:52,014 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 65 transitions, 208 flow [2021-04-28 19:16:52,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 244.75) internal successors, (979), 4 states have internal predecessors, (979), 0 states have call successors, (0), 0 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 19:16:52,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:16:52,015 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:16:52,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:16:52,015 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:16:52,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:16:52,016 INFO L82 PathProgramCache]: Analyzing trace with hash 683165840, now seen corresponding path program 1 times [2021-04-28 19:16:52,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:16:52,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078113639] [2021-04-28 19:16:52,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:16:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:16:52,081 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:16:52,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:16:52,088 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 19:16:52,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:16:52,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:16:52,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:16:52,103 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 19:16:52,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078113639] [2021-04-28 19:16:52,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:16:52,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:16:52,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147831308] [2021-04-28 19:16:52,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:16:52,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:16:52,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:16:52,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:16:52,107 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 400 [2021-04-28 19:16:52,109 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 65 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:16:52,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:16:52,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 400 [2021-04-28 19:16:52,110 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:17:03,740 INFO L129 PetriNetUnfolder]: 59385/88018 cut-off events. [2021-04-28 19:17:03,740 INFO L130 PetriNetUnfolder]: For 697/905 co-relation queries the response was YES. [2021-04-28 19:17:04,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176600 conditions, 88018 events. 59385/88018 cut-off events. For 697/905 co-relation queries the response was YES. Maximal size of possible extension queue 15052. Compared 823004 event pairs, 11805 based on Foata normal form. 1051/25051 useless extension candidates. Maximal degree in co-relation 176586. Up to 49921 conditions per place. [2021-04-28 19:17:04,539 INFO L132 encePairwiseOnDemand]: 378/400 looper letters, 38 selfloop transitions, 25 changer transitions 0/101 dead transitions. [2021-04-28 19:17:04,539 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 101 transitions, 406 flow [2021-04-28 19:17:04,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:17:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:17:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1118 transitions. [2021-04-28 19:17:04,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.69875 [2021-04-28 19:17:04,544 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1118 transitions. [2021-04-28 19:17:04,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1118 transitions. [2021-04-28 19:17:04,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:17:04,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1118 transitions. [2021-04-28 19:17:04,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 279.5) internal successors, (1118), 4 states have internal predecessors, (1118), 0 states have call successors, (0), 0 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 19:17:04,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:17:04,556 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:17:04,556 INFO L185 Difference]: Start difference. First operand has 73 places, 65 transitions, 208 flow. Second operand 4 states and 1118 transitions. [2021-04-28 19:17:04,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 101 transitions, 406 flow [2021-04-28 19:17:04,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 101 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:17:04,574 INFO L241 Difference]: Finished difference. Result has 77 places, 88 transitions, 388 flow [2021-04-28 19:17:04,575 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=388, PETRI_PLACES=77, PETRI_TRANSITIONS=88} [2021-04-28 19:17:04,575 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -80 predicate places. [2021-04-28 19:17:04,575 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:17:04,575 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 88 transitions, 388 flow [2021-04-28 19:17:04,576 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 88 transitions, 388 flow [2021-04-28 19:17:04,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 88 transitions, 388 flow [2021-04-28 19:17:08,353 INFO L129 PetriNetUnfolder]: 24993/41608 cut-off events. [2021-04-28 19:17:08,354 INFO L130 PetriNetUnfolder]: For 1639/12668 co-relation queries the response was YES. [2021-04-28 19:17:08,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87293 conditions, 41608 events. 24993/41608 cut-off events. For 1639/12668 co-relation queries the response was YES. Maximal size of possible extension queue 7677. Compared 448620 event pairs, 11601 based on Foata normal form. 0/12589 useless extension candidates. Maximal degree in co-relation 87278. Up to 39727 conditions per place. [2021-04-28 19:17:08,875 INFO L146 LiptonReduction]: Number of co-enabled transitions 3246 [2021-04-28 19:17:09,035 INFO L158 LiptonReduction]: Checked pairs total: 1815 [2021-04-28 19:17:09,035 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:17:09,035 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4460 [2021-04-28 19:17:09,037 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 88 transitions, 388 flow [2021-04-28 19:17:09,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 265.75) internal successors, (1063), 4 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:17:09,039 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:17:09,039 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:17:09,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:17:09,039 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:17:09,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:17:09,040 INFO L82 PathProgramCache]: Analyzing trace with hash -956047807, now seen corresponding path program 1 times [2021-04-28 19:17:09,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:17:09,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016249930] [2021-04-28 19:17:09,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:17:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:17:09,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:09,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:17:09,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:09,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:17:09,144 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 19:17:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:17:09,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:09,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:17:09,158 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 19:17:09,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016249930] [2021-04-28 19:17:09,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:17:09,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:17:09,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332504602] [2021-04-28 19:17:09,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:17:09,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:17:09,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:17:09,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:17:09,165 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 400 [2021-04-28 19:17:09,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 88 transitions, 388 flow. Second operand has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:17:09,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:17:09,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 400 [2021-04-28 19:17:09,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:17:19,736 INFO L129 PetriNetUnfolder]: 68169/106876 cut-off events. [2021-04-28 19:17:19,736 INFO L130 PetriNetUnfolder]: For 16388/574805 co-relation queries the response was YES. [2021-04-28 19:17:20,098 INFO L84 FinitePrefix]: Finished finitePrefix Result has 333733 conditions, 106876 events. 68169/106876 cut-off events. For 16388/574805 co-relation queries the response was YES. Maximal size of possible extension queue 19551. Compared 1112170 event pairs, 3984 based on Foata normal form. 1114/32353 useless extension candidates. Maximal degree in co-relation 333716. Up to 92140 conditions per place. [2021-04-28 19:17:20,769 INFO L132 encePairwiseOnDemand]: 378/400 looper letters, 50 selfloop transitions, 37 changer transitions 0/125 dead transitions. [2021-04-28 19:17:20,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 125 transitions, 717 flow [2021-04-28 19:17:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:17:20,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:17:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1403 transitions. [2021-04-28 19:17:20,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7015 [2021-04-28 19:17:20,775 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1403 transitions. [2021-04-28 19:17:20,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1403 transitions. [2021-04-28 19:17:20,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:17:20,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1403 transitions. [2021-04-28 19:17:20,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 280.6) internal successors, (1403), 5 states have internal predecessors, (1403), 0 states have call successors, (0), 0 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 19:17:20,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 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 19:17:20,789 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 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 19:17:20,789 INFO L185 Difference]: Start difference. First operand has 77 places, 88 transitions, 388 flow. Second operand 5 states and 1403 transitions. [2021-04-28 19:17:20,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 125 transitions, 717 flow [2021-04-28 19:17:20,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 125 transitions, 693 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:17:20,804 INFO L241 Difference]: Finished difference. Result has 82 places, 111 transitions, 639 flow [2021-04-28 19:17:20,804 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=639, PETRI_PLACES=82, PETRI_TRANSITIONS=111} [2021-04-28 19:17:20,804 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -75 predicate places. [2021-04-28 19:17:20,805 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:17:20,805 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 111 transitions, 639 flow [2021-04-28 19:17:20,815 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 111 transitions, 639 flow [2021-04-28 19:17:20,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 111 transitions, 639 flow [2021-04-28 19:17:27,899 INFO L129 PetriNetUnfolder]: 42324/73427 cut-off events. [2021-04-28 19:17:27,899 INFO L130 PetriNetUnfolder]: For 62426/436467 co-relation queries the response was YES. [2021-04-28 19:17:28,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245085 conditions, 73427 events. 42324/73427 cut-off events. For 62426/436467 co-relation queries the response was YES. Maximal size of possible extension queue 13893. Compared 868158 event pairs, 4730 based on Foata normal form. 22/21212 useless extension candidates. Maximal degree in co-relation 245067. Up to 67036 conditions per place. [2021-04-28 19:17:29,208 INFO L146 LiptonReduction]: Number of co-enabled transitions 4272 [2021-04-28 19:17:29,601 INFO L158 LiptonReduction]: Checked pairs total: 3126 [2021-04-28 19:17:29,601 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:17:29,601 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8796 [2021-04-28 19:17:29,603 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 111 transitions, 639 flow [2021-04-28 19:17:29,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 265.8) internal successors, (1329), 5 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:17:29,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:17:29,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:17:29,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:17:29,606 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:17:29,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:17:29,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1113194170, now seen corresponding path program 1 times [2021-04-28 19:17:29,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:17:29,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963489365] [2021-04-28 19:17:29,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:17:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:17:29,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:29,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:17:29,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:29,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:17:29,726 INFO L142 QuantifierPusher]: treesize reduction 3, result has 87.5 percent of original size [2021-04-28 19:17:29,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 19:17:29,741 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 19:17:29,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963489365] [2021-04-28 19:17:29,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:17:29,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:17:29,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886975267] [2021-04-28 19:17:29,742 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:17:29,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:17:29,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:17:29,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:17:29,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 400 [2021-04-28 19:17:29,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 111 transitions, 639 flow. Second operand has 4 states, 4 states have (on average 239.75) internal successors, (959), 4 states have internal predecessors, (959), 0 states have call successors, (0), 0 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 19:17:29,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:17:29,749 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 400 [2021-04-28 19:17:29,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:17:41,025 INFO L129 PetriNetUnfolder]: 60661/103884 cut-off events. [2021-04-28 19:17:41,025 INFO L130 PetriNetUnfolder]: For 99204/810112 co-relation queries the response was YES. [2021-04-28 19:17:41,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345381 conditions, 103884 events. 60661/103884 cut-off events. For 99204/810112 co-relation queries the response was YES. Maximal size of possible extension queue 20226. Compared 1220763 event pairs, 6959 based on Foata normal form. 312/30614 useless extension candidates. Maximal degree in co-relation 345361. Up to 95365 conditions per place. [2021-04-28 19:17:42,036 INFO L132 encePairwiseOnDemand]: 391/400 looper letters, 14 selfloop transitions, 21 changer transitions 0/128 dead transitions. [2021-04-28 19:17:42,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 128 transitions, 803 flow [2021-04-28 19:17:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:17:42,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:17:42,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1218 transitions. [2021-04-28 19:17:42,041 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.609 [2021-04-28 19:17:42,042 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1218 transitions. [2021-04-28 19:17:42,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1218 transitions. [2021-04-28 19:17:42,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:17:42,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1218 transitions. [2021-04-28 19:17:42,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 243.6) internal successors, (1218), 5 states have internal predecessors, (1218), 0 states have call successors, (0), 0 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 19:17:42,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 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 19:17:42,052 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 400.0) internal successors, (2400), 6 states have internal predecessors, (2400), 0 states have call successors, (0), 0 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 19:17:42,052 INFO L185 Difference]: Start difference. First operand has 82 places, 111 transitions, 639 flow. Second operand 5 states and 1218 transitions. [2021-04-28 19:17:42,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 128 transitions, 803 flow [2021-04-28 19:17:42,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 128 transitions, 753 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-04-28 19:17:42,136 INFO L241 Difference]: Finished difference. Result has 87 places, 123 transitions, 745 flow [2021-04-28 19:17:42,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=745, PETRI_PLACES=87, PETRI_TRANSITIONS=123} [2021-04-28 19:17:42,137 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -70 predicate places. [2021-04-28 19:17:42,137 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:17:42,137 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 123 transitions, 745 flow [2021-04-28 19:17:42,137 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 123 transitions, 745 flow [2021-04-28 19:17:42,138 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 123 transitions, 745 flow [2021-04-28 19:17:54,950 INFO L129 PetriNetUnfolder]: 66072/115631 cut-off events. [2021-04-28 19:17:54,951 INFO L130 PetriNetUnfolder]: For 32300/140447 co-relation queries the response was YES. [2021-04-28 19:17:55,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352405 conditions, 115631 events. 66072/115631 cut-off events. For 32300/140447 co-relation queries the response was YES. Maximal size of possible extension queue 21579. Compared 1442972 event pairs, 7073 based on Foata normal form. 32/32923 useless extension candidates. Maximal degree in co-relation 352384. Up to 103255 conditions per place. [2021-04-28 19:17:56,796 INFO L146 LiptonReduction]: Number of co-enabled transitions 5618 [2021-04-28 19:17:57,497 INFO L158 LiptonReduction]: Checked pairs total: 3675 [2021-04-28 19:17:57,497 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:17:57,497 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15360 [2021-04-28 19:17:57,499 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 123 transitions, 745 flow [2021-04-28 19:17:57,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 239.75) internal successors, (959), 4 states have internal predecessors, (959), 0 states have call successors, (0), 0 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 19:17:57,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:17:57,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:17:57,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:17:57,500 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:17:57,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:17:57,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1731874593, now seen corresponding path program 1 times [2021-04-28 19:17:57,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:17:57,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083968085] [2021-04-28 19:17:57,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:17:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:17:57,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:57,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:17:57,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:57,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:17:57,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:17:57,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:17:57,572 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 19:17:57,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083968085] [2021-04-28 19:17:57,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:17:57,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:17:57,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203418189] [2021-04-28 19:17:57,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:17:57,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:17:57,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:17:57,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:17:57,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 400 [2021-04-28 19:17:57,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 123 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 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 19:17:57,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:17:57,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 400 [2021-04-28 19:17:57,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:18:16,434 INFO L129 PetriNetUnfolder]: 91829/154325 cut-off events. [2021-04-28 19:18:16,434 INFO L130 PetriNetUnfolder]: For 43414/281656 co-relation queries the response was YES. [2021-04-28 19:18:17,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 469905 conditions, 154325 events. 91829/154325 cut-off events. For 43414/281656 co-relation queries the response was YES. Maximal size of possible extension queue 28728. Compared 1852853 event pairs, 11441 based on Foata normal form. 278/45495 useless extension candidates. Maximal degree in co-relation 469882. Up to 140887 conditions per place. [2021-04-28 19:18:17,765 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 5 selfloop transitions, 4 changer transitions 0/124 dead transitions. [2021-04-28 19:18:17,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 124 transitions, 771 flow [2021-04-28 19:18:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:18:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:18:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1127 transitions. [2021-04-28 19:18:17,770 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.704375 [2021-04-28 19:18:17,770 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1127 transitions. [2021-04-28 19:18:17,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1127 transitions. [2021-04-28 19:18:17,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:18:17,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1127 transitions. [2021-04-28 19:18:17,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 281.75) internal successors, (1127), 4 states have internal predecessors, (1127), 0 states have call successors, (0), 0 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 19:18:17,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:18:17,779 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:18:17,779 INFO L185 Difference]: Start difference. First operand has 87 places, 123 transitions, 745 flow. Second operand 4 states and 1127 transitions. [2021-04-28 19:18:17,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 124 transitions, 771 flow [2021-04-28 19:18:18,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 124 transitions, 771 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:18:18,109 INFO L241 Difference]: Finished difference. Result has 91 places, 123 transitions, 757 flow [2021-04-28 19:18:18,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=757, PETRI_PLACES=91, PETRI_TRANSITIONS=123} [2021-04-28 19:18:18,109 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -66 predicate places. [2021-04-28 19:18:18,109 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:18:18,110 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 123 transitions, 757 flow [2021-04-28 19:18:18,110 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 123 transitions, 757 flow [2021-04-28 19:18:18,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 123 transitions, 757 flow [2021-04-28 19:18:36,135 INFO L129 PetriNetUnfolder]: 94303/159789 cut-off events. [2021-04-28 19:18:36,135 INFO L130 PetriNetUnfolder]: For 43490/249645 co-relation queries the response was YES. [2021-04-28 19:18:37,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 486718 conditions, 159789 events. 94303/159789 cut-off events. For 43490/249645 co-relation queries the response was YES. Maximal size of possible extension queue 29652. Compared 1982762 event pairs, 11528 based on Foata normal form. 34/46381 useless extension candidates. Maximal degree in co-relation 486695. Up to 145255 conditions per place. [2021-04-28 19:18:38,611 INFO L146 LiptonReduction]: Number of co-enabled transitions 5618 [2021-04-28 19:18:38,724 INFO L158 LiptonReduction]: Checked pairs total: 3675 [2021-04-28 19:18:38,724 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:18:38,725 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20616 [2021-04-28 19:18:38,726 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 123 transitions, 757 flow [2021-04-28 19:18:38,726 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 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 19:18:38,726 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:18:38,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:18:38,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:18:38,727 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:18:38,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:18:38,727 INFO L82 PathProgramCache]: Analyzing trace with hash -258204656, now seen corresponding path program 1 times [2021-04-28 19:18:38,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:18:38,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600731657] [2021-04-28 19:18:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:18:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:18:39,025 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2021-04-28 19:18:39,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:18:39,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:18:39,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:18:39,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:18:39,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:18:39,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:18:39,042 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 19:18:39,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:18:39,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:18:39,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:18:39,057 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 19:18:39,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600731657] [2021-04-28 19:18:39,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:18:39,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:18:39,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621340876] [2021-04-28 19:18:39,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:18:39,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:18:39,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:18:39,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:18:39,061 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 400 [2021-04-28 19:18:39,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 123 transitions, 757 flow. Second operand has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:18:39,064 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:18:39,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 400 [2021-04-28 19:18:39,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:19:11,682 INFO L129 PetriNetUnfolder]: 147029/240038 cut-off events. [2021-04-28 19:19:11,683 INFO L130 PetriNetUnfolder]: For 112454/1492743 co-relation queries the response was YES. [2021-04-28 19:19:12,682 INFO L84 FinitePrefix]: Finished finitePrefix Result has 960710 conditions, 240038 events. 147029/240038 cut-off events. For 112454/1492743 co-relation queries the response was YES. Maximal size of possible extension queue 43830. Compared 2885766 event pairs, 38 based on Foata normal form. 2238/72492 useless extension candidates. Maximal degree in co-relation 960685. Up to 209332 conditions per place. [2021-04-28 19:19:13,290 INFO L132 encePairwiseOnDemand]: 378/400 looper letters, 62 selfloop transitions, 49 changer transitions 0/161 dead transitions. [2021-04-28 19:19:13,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 161 transitions, 1195 flow [2021-04-28 19:19:13,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 19:19:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 19:19:13,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1688 transitions. [2021-04-28 19:19:13,298 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7033333333333334 [2021-04-28 19:19:13,298 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1688 transitions. [2021-04-28 19:19:13,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1688 transitions. [2021-04-28 19:19:13,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:19:13,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1688 transitions. [2021-04-28 19:19:13,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 281.3333333333333) internal successors, (1688), 6 states have internal predecessors, (1688), 0 states have call successors, (0), 0 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 19:19:13,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 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 19:19:13,310 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 400.0) internal successors, (2800), 7 states have internal predecessors, (2800), 0 states have call successors, (0), 0 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 19:19:13,310 INFO L185 Difference]: Start difference. First operand has 91 places, 123 transitions, 757 flow. Second operand 6 states and 1688 transitions. [2021-04-28 19:19:13,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 161 transitions, 1195 flow [2021-04-28 19:19:13,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 161 transitions, 1182 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 19:19:13,369 INFO L241 Difference]: Finished difference. Result has 96 places, 146 transitions, 1078 flow [2021-04-28 19:19:13,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=96, PETRI_TRANSITIONS=146} [2021-04-28 19:19:13,370 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -61 predicate places. [2021-04-28 19:19:13,370 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:19:13,370 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 146 transitions, 1078 flow [2021-04-28 19:19:13,370 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 146 transitions, 1078 flow [2021-04-28 19:19:13,371 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 146 transitions, 1078 flow [2021-04-28 19:19:42,568 INFO L129 PetriNetUnfolder]: 121637/207548 cut-off events. [2021-04-28 19:19:42,568 INFO L130 PetriNetUnfolder]: For 696238/1208355 co-relation queries the response was YES. [2021-04-28 19:19:43,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 938924 conditions, 207548 events. 121637/207548 cut-off events. For 696238/1208355 co-relation queries the response was YES. Maximal size of possible extension queue 37263. Compared 2604427 event pairs, 436 based on Foata normal form. 46/58808 useless extension candidates. Maximal degree in co-relation 938899. Up to 184195 conditions per place. [2021-04-28 19:19:46,089 INFO L146 LiptonReduction]: Number of co-enabled transitions 6180 [2021-04-28 19:19:47,904 INFO L158 LiptonReduction]: Checked pairs total: 5046 [2021-04-28 19:19:47,904 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:19:47,904 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34534 [2021-04-28 19:19:47,905 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 146 transitions, 1078 flow [2021-04-28 19:19:47,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 265.8333333333333) internal successors, (1595), 6 states have internal predecessors, (1595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:19:47,906 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:19:47,906 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:19:47,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:19:47,907 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:19:47,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:19:47,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1247175478, now seen corresponding path program 1 times [2021-04-28 19:19:47,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:19:47,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350843523] [2021-04-28 19:19:47,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:19:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:19:47,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:19:47,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:19:47,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:19:47,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:19:47,991 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 19:19:47,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350843523] [2021-04-28 19:19:47,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:19:47,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:19:47,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806771176] [2021-04-28 19:19:47,992 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:19:47,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:19:47,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:19:47,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:19:47,994 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 325 out of 400 [2021-04-28 19:19:47,996 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 146 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 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 19:19:47,996 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:19:47,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 325 of 400 [2021-04-28 19:19:47,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:20:33,040 INFO L129 PetriNetUnfolder]: 180326/302744 cut-off events. [2021-04-28 19:20:33,040 INFO L130 PetriNetUnfolder]: For 1392714/2867473 co-relation queries the response was YES. [2021-04-28 19:20:34,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1368098 conditions, 302744 events. 180326/302744 cut-off events. For 1392714/2867473 co-relation queries the response was YES. Maximal size of possible extension queue 61974. Compared 3880045 event pairs, 715 based on Foata normal form. 330/87470 useless extension candidates. Maximal degree in co-relation 1368071. Up to 270937 conditions per place. [2021-04-28 19:20:34,728 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 7 selfloop transitions, 8 changer transitions 4/150 dead transitions. [2021-04-28 19:20:34,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 150 transitions, 1139 flow [2021-04-28 19:20:34,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:20:34,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:20:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 983 transitions. [2021-04-28 19:20:34,732 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8191666666666667 [2021-04-28 19:20:34,732 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 983 transitions. [2021-04-28 19:20:34,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 983 transitions. [2021-04-28 19:20:34,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:20:34,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 983 transitions. [2021-04-28 19:20:34,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 0 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 19:20:34,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:20:34,740 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 400.0) internal successors, (1600), 4 states have internal predecessors, (1600), 0 states have call successors, (0), 0 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 19:20:34,740 INFO L185 Difference]: Start difference. First operand has 96 places, 146 transitions, 1078 flow. Second operand 3 states and 983 transitions. [2021-04-28 19:20:34,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 150 transitions, 1139 flow [2021-04-28 19:21:24,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 150 transitions, 1041 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-04-28 19:21:24,414 INFO L241 Difference]: Finished difference. Result has 96 places, 145 transitions, 988 flow [2021-04-28 19:21:24,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=988, PETRI_PLACES=96, PETRI_TRANSITIONS=145} [2021-04-28 19:21:24,414 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -61 predicate places. [2021-04-28 19:21:24,414 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:21:24,415 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 145 transitions, 988 flow [2021-04-28 19:21:24,415 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 145 transitions, 988 flow [2021-04-28 19:21:24,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 145 transitions, 988 flow [2021-04-28 19:22:08,538 INFO L129 PetriNetUnfolder]: 182558/306982 cut-off events. [2021-04-28 19:22:08,539 INFO L130 PetriNetUnfolder]: For 336027/741958 co-relation queries the response was YES. [2021-04-28 19:22:10,017 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1093941 conditions, 306982 events. 182558/306982 cut-off events. For 336027/741958 co-relation queries the response was YES. Maximal size of possible extension queue 56054. Compared 3992397 event pairs, 681 based on Foata normal form. 60/88175 useless extension candidates. Maximal degree in co-relation 1093916. Up to 230662 conditions per place. [2021-04-28 19:22:13,425 INFO L146 LiptonReduction]: Number of co-enabled transitions 5838 [2021-04-28 19:22:16,107 INFO L158 LiptonReduction]: Checked pairs total: 4874 [2021-04-28 19:22:16,107 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:22:16,107 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 51693 [2021-04-28 19:22:16,108 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 145 transitions, 988 flow [2021-04-28 19:22:16,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 326.6666666666667) internal successors, (980), 3 states have internal predecessors, (980), 0 states have call successors, (0), 0 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 19:22:16,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:22:16,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:22:16,109 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:22:16,109 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:22:16,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:22:16,109 INFO L82 PathProgramCache]: Analyzing trace with hash 124897418, now seen corresponding path program 1 times [2021-04-28 19:22:16,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:22:16,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373770070] [2021-04-28 19:22:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:22:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:22:16,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:22:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:22:16,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:22:16,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:22:16,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:22:16,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:22:16,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:22:16,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:22:16,225 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 19:22:16,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:22:16,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:22:16,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:22:16,240 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 19:22:16,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373770070] [2021-04-28 19:22:16,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:22:16,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 19:22:16,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250712497] [2021-04-28 19:22:16,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:22:16,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:22:16,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:22:16,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:22:16,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 400 [2021-04-28 19:22:16,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 145 transitions, 988 flow. Second operand has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:22:16,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:22:16,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 400 [2021-04-28 19:22:16,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:23:13,967 INFO L129 PetriNetUnfolder]: 207473/344396 cut-off events. [2021-04-28 19:23:13,967 INFO L130 PetriNetUnfolder]: For 299312/2915444 co-relation queries the response was YES. [2021-04-28 19:23:15,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1572971 conditions, 344396 events. 207473/344396 cut-off events. For 299312/2915444 co-relation queries the response was YES. Maximal size of possible extension queue 68922. Compared 4367798 event pairs, 13 based on Foata normal form. 2295/102446 useless extension candidates. Maximal degree in co-relation 1572944. Up to 258796 conditions per place. [2021-04-28 19:23:16,129 INFO L132 encePairwiseOnDemand]: 378/400 looper letters, 49 selfloop transitions, 50 changer transitions 12/160 dead transitions. [2021-04-28 19:23:16,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 160 transitions, 1306 flow [2021-04-28 19:23:16,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:23:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:23:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1949 transitions. [2021-04-28 19:23:16,136 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6960714285714286 [2021-04-28 19:23:16,136 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1949 transitions. [2021-04-28 19:23:16,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1949 transitions. [2021-04-28 19:23:16,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:23:16,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1949 transitions. [2021-04-28 19:23:16,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 278.42857142857144) internal successors, (1949), 7 states have internal predecessors, (1949), 0 states have call successors, (0), 0 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 19:23:16,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 400.0) internal successors, (3200), 8 states have internal predecessors, (3200), 0 states have call successors, (0), 0 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 19:23:16,150 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 400.0) internal successors, (3200), 8 states have internal predecessors, (3200), 0 states have call successors, (0), 0 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 19:23:16,151 INFO L185 Difference]: Start difference. First operand has 96 places, 145 transitions, 988 flow. Second operand 7 states and 1949 transitions. [2021-04-28 19:23:16,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 160 transitions, 1306 flow [2021-04-28 19:23:58,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 160 transitions, 1293 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 19:23:58,431 INFO L241 Difference]: Finished difference. Result has 102 places, 145 transitions, 1138 flow [2021-04-28 19:23:58,431 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=400, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1138, PETRI_PLACES=102, PETRI_TRANSITIONS=145} [2021-04-28 19:23:58,431 INFO L343 CegarLoopForPetriNet]: 157 programPoint places, -55 predicate places. [2021-04-28 19:23:58,431 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:23:58,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 145 transitions, 1138 flow [2021-04-28 19:23:58,432 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 145 transitions, 1138 flow [2021-04-28 19:23:58,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 145 transitions, 1138 flow [2021-04-28 19:24:51,355 INFO L129 PetriNetUnfolder]: 202927/332640 cut-off events. [2021-04-28 19:24:51,355 INFO L130 PetriNetUnfolder]: For 1385426/1979485 co-relation queries the response was YES. [2021-04-28 19:24:53,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1627112 conditions, 332640 events. 202927/332640 cut-off events. For 1385426/1979485 co-relation queries the response was YES. Maximal size of possible extension queue 55958. Compared 4210887 event pairs, 5 based on Foata normal form. 2/96804 useless extension candidates. Maximal degree in co-relation 1627085. Up to 257743 conditions per place. [2021-04-28 19:24:56,977 INFO L146 LiptonReduction]: Number of co-enabled transitions 5420 [2021-04-28 19:24:57,714 INFO L158 LiptonReduction]: Checked pairs total: 4733 [2021-04-28 19:24:57,715 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:24:57,715 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59284 [2021-04-28 19:24:57,716 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 145 transitions, 1138 flow [2021-04-28 19:24:57,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 265.85714285714283) internal successors, (1861), 7 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:24:57,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:24:57,717 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:24:57,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:24:57,717 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:24:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:24:57,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1814527181, now seen corresponding path program 1 times [2021-04-28 19:24:57,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:24:57,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530855559] [2021-04-28 19:24:57,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:24:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:24:57,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:24:57,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:24:57,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:24:57,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:24:57,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:24:57,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:24:57,819 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 19:24:57,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530855559] [2021-04-28 19:24:57,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:24:57,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:24:57,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510397624] [2021-04-28 19:24:57,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:24:57,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:24:57,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:24:57,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:24:57,823 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 400 [2021-04-28 19:24:57,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 145 transitions, 1138 flow. Second operand has 4 states, 4 states have (on average 256.0) internal successors, (1024), 4 states have internal predecessors, (1024), 0 states have call successors, (0), 0 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 19:24:57,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:24:57,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 400 [2021-04-28 19:24:57,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:26:56,438 INFO L129 PetriNetUnfolder]: 369165/594326 cut-off events. [2021-04-28 19:26:56,439 INFO L130 PetriNetUnfolder]: For 4161088/6350144 co-relation queries the response was YES. [2021-04-28 19:26:58,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2947746 conditions, 594326 events. 369165/594326 cut-off events. For 4161088/6350144 co-relation queries the response was YES. Maximal size of possible extension queue 115317. Compared 7518562 event pairs, 18 based on Foata normal form. 84/173259 useless extension candidates. Maximal degree in co-relation 2947717. Up to 474175 conditions per place. [2021-04-28 19:26:59,347 INFO L132 encePairwiseOnDemand]: 397/400 looper letters, 3 selfloop transitions, 1 changer transitions 71/149 dead transitions. [2021-04-28 19:26:59,347 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 149 transitions, 1196 flow [2021-04-28 19:26:59,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:26:59,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:26:59,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1026 transitions. [2021-04-28 19:26:59,351 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.64125 [2021-04-28 19:26:59,351 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1026 transitions. [2021-04-28 19:26:59,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1026 transitions. [2021-04-28 19:26:59,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:26:59,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1026 transitions. [2021-04-28 19:26:59,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 256.5) internal successors, (1026), 4 states have internal predecessors, (1026), 0 states have call successors, (0), 0 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 19:26:59,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:26:59,358 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 400.0) internal successors, (2000), 5 states have internal predecessors, (2000), 0 states have call successors, (0), 0 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 19:26:59,358 INFO L185 Difference]: Start difference. First operand has 101 places, 145 transitions, 1138 flow. Second operand 4 states and 1026 transitions. [2021-04-28 19:26:59,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 149 transitions, 1196 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown