/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/mix051_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 21:53:47,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 21:53:47,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 21:53:47,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 21:53:47,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 21:53:47,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 21:53:47,508 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 21:53:47,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 21:53:47,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 21:53:47,526 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 21:53:47,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 21:53:47,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 21:53:47,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 21:53:47,531 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 21:53:47,532 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 21:53:47,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 21:53:47,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 21:53:47,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 21:53:47,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 21:53:47,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 21:53:47,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 21:53:47,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 21:53:47,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 21:53:47,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 21:53:47,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 21:53:47,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 21:53:47,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 21:53:47,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 21:53:47,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 21:53:47,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 21:53:47,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 21:53:47,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 21:53:47,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 21:53:47,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 21:53:47,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 21:53:47,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 21:53:47,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 21:53:47,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 21:53:47,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 21:53:47,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 21:53:47,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 21:53:47,593 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 21:53:47,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 21:53:47,593 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 21:53:47,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 21:53:47,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 21:53:47,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 21:53:47,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 21:53:47,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 21:53:47,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 21:53:47,595 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 21:53:47,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 21:53:47,595 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 21:53:47,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 21:53:47,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 21:53:47,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 21:53:47,596 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 21:53:47,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 21:53:47,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:53:47,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 21:53:47,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 21:53:47,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 21:53:47,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 21:53:47,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 21:53:47,598 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 21:53:47,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 21:53:47,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 21:53:47,599 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 21:53:48,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 21:53:48,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 21:53:48,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 21:53:48,045 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 21:53:48,046 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 21:53:48,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i [2021-04-28 21:53:48,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab584b48/09975136757849be9bcb542a64f9a567/FLAG2a7291439 [2021-04-28 21:53:48,842 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 21:53:48,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix051_tso.oepc.i [2021-04-28 21:53:48,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab584b48/09975136757849be9bcb542a64f9a567/FLAG2a7291439 [2021-04-28 21:53:49,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ab584b48/09975136757849be9bcb542a64f9a567 [2021-04-28 21:53:49,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 21:53:49,110 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 21:53:49,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 21:53:49,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 21:53:49,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 21:53:49,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:49,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360f01fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49, skipping insertion in model container [2021-04-28 21:53:49,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:49,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 21:53:49,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 21:53:49,367 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/mix051_tso.oepc.i[949,962] [2021-04-28 21:53:49,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:53:49,743 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 21:53:49,757 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/mix051_tso.oepc.i[949,962] [2021-04-28 21:53:49,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 21:53:49,957 INFO L208 MainTranslator]: Completed translation [2021-04-28 21:53:49,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49 WrapperNode [2021-04-28 21:53:49,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 21:53:49,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 21:53:49,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 21:53:49,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 21:53:49,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 21:53:50,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 21:53:50,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 21:53:50,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 21:53:50,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... [2021-04-28 21:53:50,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 21:53:50,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 21:53:50,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 21:53:50,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 21:53:50,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 21:53:50,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 21:53:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 21:53:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 21:53:50,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 21:53:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 21:53:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 21:53:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 21:53:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 21:53:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 21:53:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 21:53:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 21:53:50,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 21:53:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 21:53:50,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 21:53:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 21:53:50,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 21:53:50,302 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 21:53:52,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 21:53:52,847 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 21:53:52,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:53:52 BoogieIcfgContainer [2021-04-28 21:53:52,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 21:53:52,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 21:53:52,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 21:53:52,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 21:53:52,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 09:53:49" (1/3) ... [2021-04-28 21:53:52,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaceb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:53:52, skipping insertion in model container [2021-04-28 21:53:52,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 09:53:49" (2/3) ... [2021-04-28 21:53:52,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eaceb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 09:53:52, skipping insertion in model container [2021-04-28 21:53:52,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 09:53:52" (3/3) ... [2021-04-28 21:53:52,859 INFO L111 eAbstractionObserver]: Analyzing ICFG mix051_tso.oepc.i [2021-04-28 21:53:52,867 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 21:53:52,873 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 21:53:52,874 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 21:53:52,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,915 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,915 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,916 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,916 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,916 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,916 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,917 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,918 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,922 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,928 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,929 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,929 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,930 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,930 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,931 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,932 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,933 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,935 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,935 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,935 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,935 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,936 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,936 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,936 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,936 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,936 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,937 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,937 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,937 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,937 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,937 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,938 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,939 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,940 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,940 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,941 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,941 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,943 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,944 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,944 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,944 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,944 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,944 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,945 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,945 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,945 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,945 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,947 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,948 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,948 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,948 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,948 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,948 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,949 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,951 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,951 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,955 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 21:53:52,958 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 21:53:52,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 21:53:53,009 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 21:53:53,009 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 21:53:53,009 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 21:53:53,009 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 21:53:53,009 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 21:53:53,010 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 21:53:53,010 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 21:53:53,010 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 21:53:53,028 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 21:53:53,082 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 21:53:53,083 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:53:53,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:53:53,091 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 21:53:53,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 21:53:53,099 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:53:53,116 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 21:53:53,121 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 21:53:53,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 21:53:53,152 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 21:53:53,153 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:53:53,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 92 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 21:53:53,159 INFO L146 LiptonReduction]: Number of co-enabled transitions 2664 [2021-04-28 21:53:54,751 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 21:53:55,243 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 21:53:57,432 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 21:53:58,437 WARN L205 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:01,509 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 21:54:01,651 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 21:54:02,184 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 21:54:02,402 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:54:04,779 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:54:05,310 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 21:54:06,348 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:54:07,369 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 21:54:07,875 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 21:54:08,393 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 21:54:09,502 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:10,648 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:11,231 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:54:11,822 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 21:54:12,989 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:14,133 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:15,124 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:54:15,265 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:54:15,530 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:54:15,791 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:54:17,365 WARN L205 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:18,010 WARN L205 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:19,278 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:54:20,607 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 21:54:21,837 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:54:22,442 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:54:23,765 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:25,113 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:25,758 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:26,390 WARN L205 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:28,925 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 21:54:30,178 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:31,420 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 21:54:32,058 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 21:54:33,431 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:34,781 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:40,024 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 21:54:40,691 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 21:54:43,564 WARN L205 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-04-28 21:54:45,037 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 21:54:45,777 WARN L205 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:46,520 WARN L205 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 21:54:49,491 WARN L205 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 21:54:50,987 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 21:54:51,728 WARN L205 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 21:54:52,486 WARN L205 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 21:54:54,045 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:55,602 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 21:54:59,114 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:55:01,362 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:55:01,565 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 21:55:01,678 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:01,782 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:01,887 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:01,991 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:03,587 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:55:03,689 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:55:03,790 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 21:55:06,761 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:06,895 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:07,033 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:07,176 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:07,334 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:55:07,501 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:55:07,660 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:55:07,821 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 21:55:07,944 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:08,068 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:08,187 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:08,311 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:08,427 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:08,540 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:08,651 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:08,759 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:08,877 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:08,995 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:09,118 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:09,240 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:09,374 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:55:09,526 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:55:09,663 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:55:09,805 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 21:55:09,934 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:55:10,069 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:55:10,201 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:55:10,330 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 21:55:10,449 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:10,569 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:10,684 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:10,797 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:10,943 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:55:11,100 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:55:11,254 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:55:11,405 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 21:55:11,646 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:55:11,841 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:55:12,037 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:55:12,232 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 21:55:12,411 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:55:12,591 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:55:12,771 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:55:12,949 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 21:55:13,070 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,192 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,326 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,450 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,574 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,694 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,817 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:13,940 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:14,063 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:14,184 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:14,306 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:14,428 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:14,553 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:14,676 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:14,800 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:14,923 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 21:55:15,054 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,180 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,305 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,425 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,545 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,666 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,786 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:15,907 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 21:55:16,019 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:16,129 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:16,242 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:16,369 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 21:55:16,590 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:16,808 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:17,025 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:17,242 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:17,373 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:17,506 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:17,629 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:17,758 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 21:55:17,989 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:55:18,232 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:55:18,466 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:55:18,702 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 21:55:18,887 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:55:19,071 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:55:19,245 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:55:19,418 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 21:55:19,624 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:19,829 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:20,039 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:20,243 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 21:55:20,446 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:55:20,628 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:55:20,827 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:55:21,024 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 21:55:21,174 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:21,322 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:21,472 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:21,633 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 21:55:21,884 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:55:22,128 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:55:22,369 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:55:22,617 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 21:55:22,801 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:22,986 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:23,171 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:23,351 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:23,605 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:55:23,865 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:55:24,109 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:55:24,367 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 21:55:24,580 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:55:24,805 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:55:25,020 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:55:25,242 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 21:55:25,457 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:55:25,686 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:55:25,913 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:55:26,137 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 21:55:26,327 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:55:26,513 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:55:26,702 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:55:26,889 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 21:55:27,053 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:55:27,220 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:55:27,389 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:55:27,552 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 21:55:27,849 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:28,134 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:28,411 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:28,694 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:29,417 WARN L205 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 21:55:29,769 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 21:55:30,496 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 21:55:30,845 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 21:55:31,552 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 21:55:31,912 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 21:55:32,629 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 21:55:32,955 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 21:55:33,215 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:55:33,477 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:55:33,739 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:55:34,003 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 21:55:34,284 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:34,565 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:34,844 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:35,121 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:35,400 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:35,684 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:35,966 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:36,238 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:36,507 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:36,779 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:37,063 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:37,345 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:37,524 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:37,700 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:37,885 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:38,065 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 21:55:38,337 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:55:38,612 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:55:38,866 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:55:39,119 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 21:55:39,413 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:39,696 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:39,979 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:40,261 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 21:55:40,314 INFO L158 LiptonReduction]: Checked pairs total: 27139 [2021-04-28 21:55:40,314 INFO L160 LiptonReduction]: Total number of compositions: 274 [2021-04-28 21:55:40,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107221 [2021-04-28 21:55:40,349 INFO L129 PetriNetUnfolder]: 0/67 cut-off events. [2021-04-28 21:55:40,350 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:55:40,350 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:40,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-28 21:55:40,351 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:40,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:40,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1320159787, now seen corresponding path program 1 times [2021-04-28 21:55:40,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:40,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496223802] [2021-04-28 21:55:40,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:40,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:40,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:55:40,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:40,680 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496223802] [2021-04-28 21:55:40,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:40,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 21:55:40,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614481931] [2021-04-28 21:55:40,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 21:55:40,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:40,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 21:55:40,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 21:55:40,717 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 390 [2021-04-28 21:55:40,726 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:40,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:40,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 390 [2021-04-28 21:55:40,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:41,507 INFO L129 PetriNetUnfolder]: 809/1666 cut-off events. [2021-04-28 21:55:41,507 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:55:41,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2885 conditions, 1666 events. 809/1666 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 12558 event pairs, 555 based on Foata normal form. 21/961 useless extension candidates. Maximal degree in co-relation 2806. Up to 881 conditions per place. [2021-04-28 21:55:41,524 INFO L132 encePairwiseOnDemand]: 371/390 looper letters, 11 selfloop transitions, 2 changer transitions 96/157 dead transitions. [2021-04-28 21:55:41,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 428 flow [2021-04-28 21:55:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:55:41,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:55:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 950 transitions. [2021-04-28 21:55:41,547 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.811965811965812 [2021-04-28 21:55:41,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 950 transitions. [2021-04-28 21:55:41,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 950 transitions. [2021-04-28 21:55:41,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:41,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 950 transitions. [2021-04-28 21:55:41,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 316.6666666666667) internal successors, (950), 3 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:41,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:41,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:41,584 INFO L185 Difference]: Start difference. First operand has 155 places, 144 transitions, 300 flow. Second operand 3 states and 950 transitions. [2021-04-28 21:55:41,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 428 flow [2021-04-28 21:55:41,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 157 transitions, 424 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 21:55:41,594 INFO L241 Difference]: Finished difference. Result has 150 places, 56 transitions, 124 flow [2021-04-28 21:55:41,597 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=150, PETRI_TRANSITIONS=56} [2021-04-28 21:55:41,598 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2021-04-28 21:55:41,598 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:41,598 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 56 transitions, 124 flow [2021-04-28 21:55:41,599 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 56 transitions, 124 flow [2021-04-28 21:55:41,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 124 flow [2021-04-28 21:55:41,609 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2021-04-28 21:55:41,609 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:55:41,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 56 events. 0/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 224 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 21:55:41,611 INFO L146 LiptonReduction]: Number of co-enabled transitions 1792 [2021-04-28 21:55:41,983 INFO L158 LiptonReduction]: Checked pairs total: 1722 [2021-04-28 21:55:41,983 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:41,983 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 385 [2021-04-28 21:55:41,986 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 124 flow [2021-04-28 21:55:41,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 298.6666666666667) internal successors, (896), 3 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:41,987 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:41,987 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:41,987 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 21:55:41,988 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:41,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:41,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1095299751, now seen corresponding path program 1 times [2021-04-28 21:55:41,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:41,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114814564] [2021-04-28 21:55:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:42,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:42,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:42,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:42,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:55:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:42,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114814564] [2021-04-28 21:55:42,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:42,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 21:55:42,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236738124] [2021-04-28 21:55:42,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:55:42,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:42,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:55:42,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:55:42,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 390 [2021-04-28 21:55:42,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 124 flow. Second operand has 4 states, 4 states have (on average 246.75) internal successors, (987), 4 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:42,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:42,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 390 [2021-04-28 21:55:42,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:42,369 INFO L129 PetriNetUnfolder]: 205/472 cut-off events. [2021-04-28 21:55:42,369 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-28 21:55:42,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 825 conditions, 472 events. 205/472 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2859 event pairs, 167 based on Foata normal form. 4/355 useless extension candidates. Maximal degree in co-relation 816. Up to 297 conditions per place. [2021-04-28 21:55:42,377 INFO L132 encePairwiseOnDemand]: 386/390 looper letters, 11 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2021-04-28 21:55:42,377 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 61 transitions, 164 flow [2021-04-28 21:55:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 21:55:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 21:55:42,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-04-28 21:55:42,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6435897435897436 [2021-04-28 21:55:42,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-04-28 21:55:42,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-04-28 21:55:42,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:42,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-04-28 21:55:42,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:42,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:42,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:42,393 INFO L185 Difference]: Start difference. First operand has 67 places, 56 transitions, 124 flow. Second operand 3 states and 753 transitions. [2021-04-28 21:55:42,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 61 transitions, 164 flow [2021-04-28 21:55:42,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 61 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 21:55:42,396 INFO L241 Difference]: Finished difference. Result has 68 places, 58 transitions, 139 flow [2021-04-28 21:55:42,396 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=68, PETRI_TRANSITIONS=58} [2021-04-28 21:55:42,397 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -87 predicate places. [2021-04-28 21:55:42,397 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:42,397 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 58 transitions, 139 flow [2021-04-28 21:55:42,398 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 58 transitions, 139 flow [2021-04-28 21:55:42,398 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 58 transitions, 139 flow [2021-04-28 21:55:42,410 INFO L129 PetriNetUnfolder]: 3/72 cut-off events. [2021-04-28 21:55:42,410 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 21:55:42,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 72 events. 3/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 296 event pairs, 1 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 87. Up to 10 conditions per place. [2021-04-28 21:55:42,413 INFO L146 LiptonReduction]: Number of co-enabled transitions 1934 [2021-04-28 21:55:42,871 INFO L158 LiptonReduction]: Checked pairs total: 1646 [2021-04-28 21:55:42,872 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:42,872 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 475 [2021-04-28 21:55:42,874 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 58 transitions, 139 flow [2021-04-28 21:55:42,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 246.75) internal successors, (987), 4 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:42,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:42,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:42,875 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 21:55:42,876 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:42,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1690608898, now seen corresponding path program 1 times [2021-04-28 21:55:42,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:42,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212674804] [2021-04-28 21:55:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:43,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:43,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:43,047 INFO L142 QuantifierPusher]: treesize reduction 10, result has 82.5 percent of original size [2021-04-28 21:55:43,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-04-28 21:55:43,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:43,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:43,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212674804] [2021-04-28 21:55:43,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:43,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:55:43,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787369746] [2021-04-28 21:55:43,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:55:43,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:43,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:55:43,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:55:43,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 390 [2021-04-28 21:55:43,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 58 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 224.8) internal successors, (1124), 5 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 21:55:43,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:43,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 390 [2021-04-28 21:55:43,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:43,381 INFO L129 PetriNetUnfolder]: 214/483 cut-off events. [2021-04-28 21:55:43,381 INFO L130 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2021-04-28 21:55:43,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 483 events. 214/483 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2875 event pairs, 149 based on Foata normal form. 4/372 useless extension candidates. Maximal degree in co-relation 925. Up to 299 conditions per place. [2021-04-28 21:55:43,389 INFO L132 encePairwiseOnDemand]: 383/390 looper letters, 12 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2021-04-28 21:55:43,389 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 66 transitions, 195 flow [2021-04-28 21:55:43,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:55:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:55:43,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 916 transitions. [2021-04-28 21:55:43,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5871794871794872 [2021-04-28 21:55:43,395 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 916 transitions. [2021-04-28 21:55:43,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 916 transitions. [2021-04-28 21:55:43,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:43,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 916 transitions. [2021-04-28 21:55:43,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:43,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:43,405 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:43,405 INFO L185 Difference]: Start difference. First operand has 68 places, 58 transitions, 139 flow. Second operand 4 states and 916 transitions. [2021-04-28 21:55:43,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 66 transitions, 195 flow [2021-04-28 21:55:43,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 66 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:55:43,408 INFO L241 Difference]: Finished difference. Result has 71 places, 62 transitions, 175 flow [2021-04-28 21:55:43,408 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=71, PETRI_TRANSITIONS=62} [2021-04-28 21:55:43,409 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -84 predicate places. [2021-04-28 21:55:43,409 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:43,409 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 62 transitions, 175 flow [2021-04-28 21:55:43,409 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 62 transitions, 175 flow [2021-04-28 21:55:43,410 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 62 transitions, 175 flow [2021-04-28 21:55:43,451 INFO L129 PetriNetUnfolder]: 65/243 cut-off events. [2021-04-28 21:55:43,452 INFO L130 PetriNetUnfolder]: For 38/50 co-relation queries the response was YES. [2021-04-28 21:55:43,453 INFO L84 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 243 events. 65/243 cut-off events. For 38/50 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1349 event pairs, 31 based on Foata normal form. 3/159 useless extension candidates. Maximal degree in co-relation 411. Up to 101 conditions per place. [2021-04-28 21:55:43,460 INFO L146 LiptonReduction]: Number of co-enabled transitions 2162 [2021-04-28 21:55:43,634 INFO L158 LiptonReduction]: Checked pairs total: 982 [2021-04-28 21:55:43,634 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:43,635 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 226 [2021-04-28 21:55:43,637 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 62 transitions, 175 flow [2021-04-28 21:55:43,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 224.8) internal successors, (1124), 5 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 21:55:43,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:43,638 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:43,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 21:55:43,638 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1077212836, now seen corresponding path program 1 times [2021-04-28 21:55:43,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:43,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858768955] [2021-04-28 21:55:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:43,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:43,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:43,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:43,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:43,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:55:43,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:43,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:55:43,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:43,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858768955] [2021-04-28 21:55:43,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:43,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:55:43,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421817294] [2021-04-28 21:55:43,784 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:55:43,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:43,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:55:43,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:55:43,787 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 239 out of 390 [2021-04-28 21:55:43,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 62 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:43,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:43,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 239 of 390 [2021-04-28 21:55:43,790 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:44,039 INFO L129 PetriNetUnfolder]: 194/470 cut-off events. [2021-04-28 21:55:44,039 INFO L130 PetriNetUnfolder]: For 199/304 co-relation queries the response was YES. [2021-04-28 21:55:44,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 470 events. 194/470 cut-off events. For 199/304 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2851 event pairs, 77 based on Foata normal form. 12/355 useless extension candidates. Maximal degree in co-relation 1083. Up to 243 conditions per place. [2021-04-28 21:55:44,046 INFO L132 encePairwiseOnDemand]: 386/390 looper letters, 18 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2021-04-28 21:55:44,047 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 69 transitions, 241 flow [2021-04-28 21:55:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:55:44,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:55:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 975 transitions. [2021-04-28 21:55:44,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.625 [2021-04-28 21:55:44,052 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 975 transitions. [2021-04-28 21:55:44,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 975 transitions. [2021-04-28 21:55:44,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:44,054 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 975 transitions. [2021-04-28 21:55:44,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 243.75) internal successors, (975), 4 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:44,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:44,063 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:44,063 INFO L185 Difference]: Start difference. First operand has 71 places, 62 transitions, 175 flow. Second operand 4 states and 975 transitions. [2021-04-28 21:55:44,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 69 transitions, 241 flow [2021-04-28 21:55:44,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 69 transitions, 230 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 21:55:44,067 INFO L241 Difference]: Finished difference. Result has 73 places, 62 transitions, 176 flow [2021-04-28 21:55:44,067 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2021-04-28 21:55:44,068 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -82 predicate places. [2021-04-28 21:55:44,068 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:44,068 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 62 transitions, 176 flow [2021-04-28 21:55:44,068 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 62 transitions, 176 flow [2021-04-28 21:55:44,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 62 transitions, 176 flow [2021-04-28 21:55:44,109 INFO L129 PetriNetUnfolder]: 59/220 cut-off events. [2021-04-28 21:55:44,109 INFO L130 PetriNetUnfolder]: For 73/93 co-relation queries the response was YES. [2021-04-28 21:55:44,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 220 events. 59/220 cut-off events. For 73/93 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1163 event pairs, 25 based on Foata normal form. 3/144 useless extension candidates. Maximal degree in co-relation 382. Up to 92 conditions per place. [2021-04-28 21:55:44,117 INFO L146 LiptonReduction]: Number of co-enabled transitions 2160 [2021-04-28 21:55:44,377 INFO L158 LiptonReduction]: Checked pairs total: 982 [2021-04-28 21:55:44,377 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:44,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 310 [2021-04-28 21:55:44,379 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 176 flow [2021-04-28 21:55:44,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:44,381 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:44,381 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:44,381 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 21:55:44,381 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:44,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:44,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2043664033, now seen corresponding path program 1 times [2021-04-28 21:55:44,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:44,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611642891] [2021-04-28 21:55:44,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:44,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:44,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 21:55:44,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:44,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:44,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:44,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 21:55:44,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:44,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 21:55:44,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:44,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611642891] [2021-04-28 21:55:44,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:44,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:55:44,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807933815] [2021-04-28 21:55:44,615 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:55:44,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:44,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:55:44,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:55:44,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 390 [2021-04-28 21:55:44,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 176 flow. Second operand has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:44,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:44,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 390 [2021-04-28 21:55:44,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:44,979 INFO L129 PetriNetUnfolder]: 230/529 cut-off events. [2021-04-28 21:55:44,980 INFO L130 PetriNetUnfolder]: For 306/442 co-relation queries the response was YES. [2021-04-28 21:55:44,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 529 events. 230/529 cut-off events. For 306/442 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3142 event pairs, 77 based on Foata normal form. 10/412 useless extension candidates. Maximal degree in co-relation 1267. Up to 266 conditions per place. [2021-04-28 21:55:44,988 INFO L132 encePairwiseOnDemand]: 381/390 looper letters, 16 selfloop transitions, 13 changer transitions 0/76 dead transitions. [2021-04-28 21:55:44,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 76 transitions, 281 flow [2021-04-28 21:55:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:55:44,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:55:44,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1145 transitions. [2021-04-28 21:55:44,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5871794871794872 [2021-04-28 21:55:44,996 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1145 transitions. [2021-04-28 21:55:44,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1145 transitions. [2021-04-28 21:55:44,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:44,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1145 transitions. [2021-04-28 21:55:45,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 229.0) internal successors, (1145), 5 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,007 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,007 INFO L185 Difference]: Start difference. First operand has 73 places, 62 transitions, 176 flow. Second operand 5 states and 1145 transitions. [2021-04-28 21:55:45,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 76 transitions, 281 flow [2021-04-28 21:55:45,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 76 transitions, 270 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-28 21:55:45,011 INFO L241 Difference]: Finished difference. Result has 77 places, 71 transitions, 253 flow [2021-04-28 21:55:45,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=253, PETRI_PLACES=77, PETRI_TRANSITIONS=71} [2021-04-28 21:55:45,012 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -78 predicate places. [2021-04-28 21:55:45,012 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:45,012 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 71 transitions, 253 flow [2021-04-28 21:55:45,012 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 71 transitions, 253 flow [2021-04-28 21:55:45,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 71 transitions, 253 flow [2021-04-28 21:55:45,122 INFO L129 PetriNetUnfolder]: 207/531 cut-off events. [2021-04-28 21:55:45,122 INFO L130 PetriNetUnfolder]: For 457/515 co-relation queries the response was YES. [2021-04-28 21:55:45,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1338 conditions, 531 events. 207/531 cut-off events. For 457/515 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3365 event pairs, 103 based on Foata normal form. 1/376 useless extension candidates. Maximal degree in co-relation 1325. Up to 211 conditions per place. [2021-04-28 21:55:45,141 INFO L146 LiptonReduction]: Number of co-enabled transitions 2634 [2021-04-28 21:55:45,312 INFO L158 LiptonReduction]: Checked pairs total: 999 [2021-04-28 21:55:45,312 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:45,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 300 [2021-04-28 21:55:45,314 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 71 transitions, 253 flow [2021-04-28 21:55:45,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,315 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:45,315 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:45,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 21:55:45,315 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:45,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:45,316 INFO L82 PathProgramCache]: Analyzing trace with hash -966142617, now seen corresponding path program 2 times [2021-04-28 21:55:45,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:45,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812774495] [2021-04-28 21:55:45,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:45,393 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.3 percent of original size [2021-04-28 21:55:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-04-28 21:55:45,452 INFO L142 QuantifierPusher]: treesize reduction 1, result has 97.5 percent of original size [2021-04-28 21:55:45,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-04-28 21:55:45,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:45,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:55:45,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:45,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 21:55:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:45,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812774495] [2021-04-28 21:55:45,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:45,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:55:45,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427856221] [2021-04-28 21:55:45,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:55:45,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:45,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:55:45,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:55:45,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 390 [2021-04-28 21:55:45,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 71 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:45,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 390 [2021-04-28 21:55:45,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:45,937 INFO L129 PetriNetUnfolder]: 236/518 cut-off events. [2021-04-28 21:55:45,937 INFO L130 PetriNetUnfolder]: For 714/999 co-relation queries the response was YES. [2021-04-28 21:55:45,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 518 events. 236/518 cut-off events. For 714/999 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2955 event pairs, 59 based on Foata normal form. 35/448 useless extension candidates. Maximal degree in co-relation 1706. Up to 262 conditions per place. [2021-04-28 21:55:45,948 INFO L132 encePairwiseOnDemand]: 382/390 looper letters, 20 selfloop transitions, 35 changer transitions 0/102 dead transitions. [2021-04-28 21:55:45,948 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 102 transitions, 562 flow [2021-04-28 21:55:45,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:55:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:55:45,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1625 transitions. [2021-04-28 21:55:45,956 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2021-04-28 21:55:45,956 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1625 transitions. [2021-04-28 21:55:45,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1625 transitions. [2021-04-28 21:55:45,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:45,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1625 transitions. [2021-04-28 21:55:45,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 232.14285714285714) internal successors, (1625), 7 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,971 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:45,972 INFO L185 Difference]: Start difference. First operand has 77 places, 71 transitions, 253 flow. Second operand 7 states and 1625 transitions. [2021-04-28 21:55:45,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 102 transitions, 562 flow [2021-04-28 21:55:45,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 102 transitions, 538 flow, removed 7 selfloop flow, removed 1 redundant places. [2021-04-28 21:55:45,978 INFO L241 Difference]: Finished difference. Result has 83 places, 97 transitions, 515 flow [2021-04-28 21:55:45,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=515, PETRI_PLACES=83, PETRI_TRANSITIONS=97} [2021-04-28 21:55:45,978 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -72 predicate places. [2021-04-28 21:55:45,978 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:45,978 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 97 transitions, 515 flow [2021-04-28 21:55:45,979 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 97 transitions, 515 flow [2021-04-28 21:55:45,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 97 transitions, 515 flow [2021-04-28 21:55:46,078 INFO L129 PetriNetUnfolder]: 213/527 cut-off events. [2021-04-28 21:55:46,079 INFO L130 PetriNetUnfolder]: For 906/1080 co-relation queries the response was YES. [2021-04-28 21:55:46,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 527 events. 213/527 cut-off events. For 906/1080 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3285 event pairs, 70 based on Foata normal form. 14/404 useless extension candidates. Maximal degree in co-relation 1587. Up to 213 conditions per place. [2021-04-28 21:55:46,098 INFO L146 LiptonReduction]: Number of co-enabled transitions 3612 [2021-04-28 21:55:46,282 INFO L158 LiptonReduction]: Checked pairs total: 2374 [2021-04-28 21:55:46,282 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:46,282 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 304 [2021-04-28 21:55:46,284 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 97 transitions, 515 flow [2021-04-28 21:55:46,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:46,285 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:46,285 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:46,285 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 21:55:46,285 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:46,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:46,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1118301995, now seen corresponding path program 1 times [2021-04-28 21:55:46,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:46,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928178198] [2021-04-28 21:55:46,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:46,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:46,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:55:46,400 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 21:55:46,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:55:46,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:46,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:55:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:46,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928178198] [2021-04-28 21:55:46,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:46,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:55:46,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118848226] [2021-04-28 21:55:46,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:55:46,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:46,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:55:46,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:55:46,428 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 390 [2021-04-28 21:55:46,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 97 transitions, 515 flow. Second operand has 4 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 21:55:46,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:46,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 390 [2021-04-28 21:55:46,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:55:52,692 INFO L129 PetriNetUnfolder]: 34948/53176 cut-off events. [2021-04-28 21:55:52,692 INFO L130 PetriNetUnfolder]: For 8114/34712 co-relation queries the response was YES. [2021-04-28 21:55:53,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111042 conditions, 53176 events. 34948/53176 cut-off events. For 8114/34712 co-relation queries the response was YES. Maximal size of possible extension queue 9369. Compared 497947 event pairs, 6788 based on Foata normal form. 761/14604 useless extension candidates. Maximal degree in co-relation 111025. Up to 29611 conditions per place. [2021-04-28 21:55:53,425 INFO L132 encePairwiseOnDemand]: 368/390 looper letters, 39 selfloop transitions, 25 changer transitions 0/129 dead transitions. [2021-04-28 21:55:53,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 129 transitions, 679 flow [2021-04-28 21:55:53,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:55:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:55:53,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1046 transitions. [2021-04-28 21:55:53,431 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6705128205128205 [2021-04-28 21:55:53,432 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1046 transitions. [2021-04-28 21:55:53,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1046 transitions. [2021-04-28 21:55:53,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:55:53,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1046 transitions. [2021-04-28 21:55:53,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 261.5) internal successors, (1046), 4 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:53,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:53,444 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:53,444 INFO L185 Difference]: Start difference. First operand has 83 places, 97 transitions, 515 flow. Second operand 4 states and 1046 transitions. [2021-04-28 21:55:53,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 129 transitions, 679 flow [2021-04-28 21:55:53,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 129 transitions, 647 flow, removed 16 selfloop flow, removed 0 redundant places. [2021-04-28 21:55:53,459 INFO L241 Difference]: Finished difference. Result has 88 places, 116 transitions, 634 flow [2021-04-28 21:55:53,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=634, PETRI_PLACES=88, PETRI_TRANSITIONS=116} [2021-04-28 21:55:53,460 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -67 predicate places. [2021-04-28 21:55:53,460 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:55:53,460 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 116 transitions, 634 flow [2021-04-28 21:55:53,461 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 116 transitions, 634 flow [2021-04-28 21:55:53,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 116 transitions, 634 flow [2021-04-28 21:55:55,682 INFO L129 PetriNetUnfolder]: 13754/23525 cut-off events. [2021-04-28 21:55:55,683 INFO L130 PetriNetUnfolder]: For 10873/128990 co-relation queries the response was YES. [2021-04-28 21:55:55,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53789 conditions, 23525 events. 13754/23525 cut-off events. For 10873/128990 co-relation queries the response was YES. Maximal size of possible extension queue 4225. Compared 240163 event pairs, 6401 based on Foata normal form. 28/7216 useless extension candidates. Maximal degree in co-relation 53770. Up to 21271 conditions per place. [2021-04-28 21:55:56,065 INFO L146 LiptonReduction]: Number of co-enabled transitions 4676 [2021-04-28 21:55:56,098 INFO L158 LiptonReduction]: Checked pairs total: 2708 [2021-04-28 21:55:56,098 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:55:56,098 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2638 [2021-04-28 21:55:56,100 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 116 transitions, 634 flow [2021-04-28 21:55:56,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 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 21:55:56,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:55:56,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 21:55:56,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 21:55:56,101 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:55:56,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:55:56,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1231008665, now seen corresponding path program 1 times [2021-04-28 21:55:56,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:55:56,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34295032] [2021-04-28 21:55:56,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:55:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:55:56,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:56,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:55:56,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:56,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:55:56,187 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 21:55:56,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:55:56,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:55:56,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:55:56,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:55:56,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34295032] [2021-04-28 21:55:56,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:55:56,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 21:55:56,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875369181] [2021-04-28 21:55:56,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 21:55:56,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:55:56,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 21:55:56,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 21:55:56,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 390 [2021-04-28 21:55:56,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 116 transitions, 634 flow. Second operand has 5 states, 5 states have (on average 247.8) internal successors, (1239), 5 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:55:56,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:55:56,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 390 [2021-04-28 21:55:56,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:56:03,422 INFO L129 PetriNetUnfolder]: 38836/63277 cut-off events. [2021-04-28 21:56:03,423 INFO L130 PetriNetUnfolder]: For 28850/2902090 co-relation queries the response was YES. [2021-04-28 21:56:03,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202646 conditions, 63277 events. 38836/63277 cut-off events. For 28850/2902090 co-relation queries the response was YES. Maximal size of possible extension queue 12501. Compared 681921 event pairs, 2420 based on Foata normal form. 803/18498 useless extension candidates. Maximal degree in co-relation 202625. Up to 53044 conditions per place. [2021-04-28 21:56:03,905 INFO L132 encePairwiseOnDemand]: 368/390 looper letters, 51 selfloop transitions, 37 changer transitions 0/151 dead transitions. [2021-04-28 21:56:03,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 151 transitions, 953 flow [2021-04-28 21:56:03,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 21:56:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 21:56:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1313 transitions. [2021-04-28 21:56:03,912 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6733333333333333 [2021-04-28 21:56:03,912 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1313 transitions. [2021-04-28 21:56:03,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1313 transitions. [2021-04-28 21:56:03,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:56:03,914 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1313 transitions. [2021-04-28 21:56:03,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 262.6) internal successors, (1313), 5 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:03,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:03,923 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:03,923 INFO L185 Difference]: Start difference. First operand has 88 places, 116 transitions, 634 flow. Second operand 5 states and 1313 transitions. [2021-04-28 21:56:03,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 151 transitions, 953 flow [2021-04-28 21:56:03,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 151 transitions, 929 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 21:56:03,939 INFO L241 Difference]: Finished difference. Result has 93 places, 137 transitions, 877 flow [2021-04-28 21:56:03,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=877, PETRI_PLACES=93, PETRI_TRANSITIONS=137} [2021-04-28 21:56:03,940 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -62 predicate places. [2021-04-28 21:56:03,940 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:56:03,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 137 transitions, 877 flow [2021-04-28 21:56:03,941 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 137 transitions, 877 flow [2021-04-28 21:56:03,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 137 transitions, 877 flow [2021-04-28 21:56:08,006 INFO L129 PetriNetUnfolder]: 22486/40129 cut-off events. [2021-04-28 21:56:08,006 INFO L130 PetriNetUnfolder]: For 36184/2275534 co-relation queries the response was YES. [2021-04-28 21:56:08,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137589 conditions, 40129 events. 22486/40129 cut-off events. For 36184/2275534 co-relation queries the response was YES. Maximal size of possible extension queue 7603. Compared 460712 event pairs, 2760 based on Foata normal form. 43/10960 useless extension candidates. Maximal degree in co-relation 137567. Up to 35497 conditions per place. [2021-04-28 21:56:08,848 INFO L146 LiptonReduction]: Number of co-enabled transitions 5570 [2021-04-28 21:56:08,891 INFO L158 LiptonReduction]: Checked pairs total: 3094 [2021-04-28 21:56:08,891 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:56:08,891 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4951 [2021-04-28 21:56:08,893 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 137 transitions, 877 flow [2021-04-28 21:56:08,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 247.8) internal successors, (1239), 5 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:08,893 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:56:08,894 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 21:56:08,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 21:56:08,894 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:56:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:56:08,894 INFO L82 PathProgramCache]: Analyzing trace with hash -833437291, now seen corresponding path program 1 times [2021-04-28 21:56:08,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:56:08,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125493686] [2021-04-28 21:56:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:56:08,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:56:08,970 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:08,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:56:08,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:08,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:56:08,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:08,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:56:08,998 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 21:56:08,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:56:09,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:09,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:56:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:56:09,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125493686] [2021-04-28 21:56:09,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:56:09,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 21:56:09,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732296722] [2021-04-28 21:56:09,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 21:56:09,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:56:09,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 21:56:09,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 21:56:09,029 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 390 [2021-04-28 21:56:09,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 137 transitions, 877 flow. Second operand has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:09,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:56:09,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 390 [2021-04-28 21:56:09,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:56:17,160 INFO L129 PetriNetUnfolder]: 36730/63844 cut-off events. [2021-04-28 21:56:17,160 INFO L130 PetriNetUnfolder]: For 53153/4949134 co-relation queries the response was YES. [2021-04-28 21:56:17,505 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275735 conditions, 63844 events. 36730/63844 cut-off events. For 53153/4949134 co-relation queries the response was YES. Maximal size of possible extension queue 13038. Compared 738364 event pairs, 143 based on Foata normal form. 734/18019 useless extension candidates. Maximal degree in co-relation 275711. Up to 54763 conditions per place. [2021-04-28 21:56:17,770 INFO L132 encePairwiseOnDemand]: 368/390 looper letters, 62 selfloop transitions, 49 changer transitions 0/172 dead transitions. [2021-04-28 21:56:17,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 172 transitions, 1299 flow [2021-04-28 21:56:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 21:56:17,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 21:56:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1580 transitions. [2021-04-28 21:56:17,778 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6752136752136753 [2021-04-28 21:56:17,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1580 transitions. [2021-04-28 21:56:17,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1580 transitions. [2021-04-28 21:56:17,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:56:17,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1580 transitions. [2021-04-28 21:56:17,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 263.3333333333333) internal successors, (1580), 6 states have internal predecessors, (1580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:17,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:17,791 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:17,791 INFO L185 Difference]: Start difference. First operand has 93 places, 137 transitions, 877 flow. Second operand 6 states and 1580 transitions. [2021-04-28 21:56:17,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 172 transitions, 1299 flow [2021-04-28 21:56:17,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 172 transitions, 1210 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-04-28 21:56:17,882 INFO L241 Difference]: Finished difference. Result has 96 places, 157 transitions, 1106 flow [2021-04-28 21:56:17,882 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1106, PETRI_PLACES=96, PETRI_TRANSITIONS=157} [2021-04-28 21:56:17,882 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -59 predicate places. [2021-04-28 21:56:17,882 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:56:17,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 157 transitions, 1106 flow [2021-04-28 21:56:17,883 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 157 transitions, 1106 flow [2021-04-28 21:56:17,884 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 157 transitions, 1106 flow [2021-04-28 21:56:24,218 INFO L129 PetriNetUnfolder]: 30982/55981 cut-off events. [2021-04-28 21:56:24,218 INFO L130 PetriNetUnfolder]: For 146710/678285 co-relation queries the response was YES. [2021-04-28 21:56:24,555 INFO L84 FinitePrefix]: Finished finitePrefix Result has 253468 conditions, 55981 events. 30982/55981 cut-off events. For 146710/678285 co-relation queries the response was YES. Maximal size of possible extension queue 10947. Compared 688216 event pairs, 168 based on Foata normal form. 41/15009 useless extension candidates. Maximal degree in co-relation 253445. Up to 47710 conditions per place. [2021-04-28 21:56:25,415 INFO L146 LiptonReduction]: Number of co-enabled transitions 5934 [2021-04-28 21:56:25,626 INFO L158 LiptonReduction]: Checked pairs total: 3435 [2021-04-28 21:56:25,626 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:56:25,626 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7744 [2021-04-28 21:56:25,628 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 157 transitions, 1106 flow [2021-04-28 21:56:25,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 247.83333333333334) internal successors, (1487), 6 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:25,631 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:56:25,631 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 21:56:25,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 21:56:25,632 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:56:25,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:56:25,632 INFO L82 PathProgramCache]: Analyzing trace with hash 429973255, now seen corresponding path program 1 times [2021-04-28 21:56:25,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:56:25,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468151885] [2021-04-28 21:56:25,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:56:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:56:25,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:25,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:56:25,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:25,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:56:25,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:56:25,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:56:25,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:56:25,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468151885] [2021-04-28 21:56:25,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:56:25,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:56:25,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923363639] [2021-04-28 21:56:25,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:56:25,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:56:25,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:56:25,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:56:25,767 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 390 [2021-04-28 21:56:25,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 157 transitions, 1106 flow. Second operand has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:25,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:56:25,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 390 [2021-04-28 21:56:25,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:56:39,064 INFO L129 PetriNetUnfolder]: 56287/99845 cut-off events. [2021-04-28 21:56:39,064 INFO L130 PetriNetUnfolder]: For 252195/1360007 co-relation queries the response was YES. [2021-04-28 21:56:39,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 451923 conditions, 99845 events. 56287/99845 cut-off events. For 252195/1360007 co-relation queries the response was YES. Maximal size of possible extension queue 19053. Compared 1242481 event pairs, 250 based on Foata normal form. 277/27332 useless extension candidates. Maximal degree in co-relation 451898. Up to 86131 conditions per place. [2021-04-28 21:56:39,983 INFO L132 encePairwiseOnDemand]: 387/390 looper letters, 4 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2021-04-28 21:56:39,983 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 159 transitions, 1132 flow [2021-04-28 21:56:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:56:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:56:39,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1023 transitions. [2021-04-28 21:56:39,988 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6557692307692308 [2021-04-28 21:56:39,988 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1023 transitions. [2021-04-28 21:56:39,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1023 transitions. [2021-04-28 21:56:39,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:56:39,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1023 transitions. [2021-04-28 21:56:39,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 255.75) internal successors, (1023), 4 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:39,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:39,996 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:56:39,996 INFO L185 Difference]: Start difference. First operand has 96 places, 157 transitions, 1106 flow. Second operand 4 states and 1023 transitions. [2021-04-28 21:56:39,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 159 transitions, 1132 flow [2021-04-28 21:56:52,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 159 transitions, 1034 flow, removed 24 selfloop flow, removed 3 redundant places. [2021-04-28 21:56:52,939 INFO L241 Difference]: Finished difference. Result has 98 places, 158 transitions, 1021 flow [2021-04-28 21:56:52,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1021, PETRI_PLACES=98, PETRI_TRANSITIONS=158} [2021-04-28 21:56:52,940 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -57 predicate places. [2021-04-28 21:56:52,940 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:56:52,940 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 158 transitions, 1021 flow [2021-04-28 21:56:52,940 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 158 transitions, 1021 flow [2021-04-28 21:56:52,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 158 transitions, 1021 flow [2021-04-28 21:57:06,929 INFO L129 PetriNetUnfolder]: 58510/103912 cut-off events. [2021-04-28 21:57:06,930 INFO L130 PetriNetUnfolder]: For 74694/618239 co-relation queries the response was YES. [2021-04-28 21:57:07,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 370606 conditions, 103912 events. 58510/103912 cut-off events. For 74694/618239 co-relation queries the response was YES. Maximal size of possible extension queue 20115. Compared 1326219 event pairs, 283 based on Foata normal form. 69/28271 useless extension candidates. Maximal degree in co-relation 370582. Up to 70282 conditions per place. [2021-04-28 21:57:08,461 INFO L146 LiptonReduction]: Number of co-enabled transitions 6060 [2021-04-28 21:57:09,677 INFO L158 LiptonReduction]: Checked pairs total: 2801 [2021-04-28 21:57:09,677 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:57:09,677 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16737 [2021-04-28 21:57:09,679 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 158 transitions, 1021 flow [2021-04-28 21:57:09,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 255.0) internal successors, (1020), 4 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:09,689 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:57:09,689 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 21:57:09,689 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 21:57:09,689 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:57:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:57:09,690 INFO L82 PathProgramCache]: Analyzing trace with hash -324515354, now seen corresponding path program 1 times [2021-04-28 21:57:09,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:57:09,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387725964] [2021-04-28 21:57:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:57:09,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:57:09,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:09,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:09,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:09,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:09,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:09,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:09,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:09,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:09,884 INFO L142 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-04-28 21:57:09,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 21:57:09,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:09,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:57:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:57:09,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387725964] [2021-04-28 21:57:09,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:57:09,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 21:57:09,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165452797] [2021-04-28 21:57:09,912 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 21:57:09,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:57:09,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 21:57:09,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 21:57:09,916 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 390 [2021-04-28 21:57:09,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 158 transitions, 1021 flow. Second operand has 7 states, 7 states have (on average 247.85714285714286) internal successors, (1735), 7 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:09,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:57:09,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 390 [2021-04-28 21:57:09,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:57:27,384 INFO L129 PetriNetUnfolder]: 63553/110678 cut-off events. [2021-04-28 21:57:27,384 INFO L130 PetriNetUnfolder]: For 110716/3504796 co-relation queries the response was YES. [2021-04-28 21:57:27,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 503572 conditions, 110678 events. 63553/110678 cut-off events. For 110716/3504796 co-relation queries the response was YES. Maximal size of possible extension queue 19509. Compared 1356680 event pairs, 7 based on Foata normal form. 837/31079 useless extension candidates. Maximal degree in co-relation 503546. Up to 75331 conditions per place. [2021-04-28 21:57:28,281 INFO L132 encePairwiseOnDemand]: 368/390 looper letters, 49 selfloop transitions, 50 changer transitions 12/173 dead transitions. [2021-04-28 21:57:28,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 173 transitions, 1339 flow [2021-04-28 21:57:28,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 21:57:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 21:57:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1823 transitions. [2021-04-28 21:57:28,289 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6677655677655677 [2021-04-28 21:57:28,289 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1823 transitions. [2021-04-28 21:57:28,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1823 transitions. [2021-04-28 21:57:28,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:57:28,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1823 transitions. [2021-04-28 21:57:28,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 260.42857142857144) internal successors, (1823), 7 states have internal predecessors, (1823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:28,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:28,300 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:28,300 INFO L185 Difference]: Start difference. First operand has 98 places, 158 transitions, 1021 flow. Second operand 7 states and 1823 transitions. [2021-04-28 21:57:28,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 173 transitions, 1339 flow [2021-04-28 21:57:40,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 173 transitions, 1317 flow, removed 8 selfloop flow, removed 2 redundant places. [2021-04-28 21:57:40,103 INFO L241 Difference]: Finished difference. Result has 104 places, 158 transitions, 1162 flow [2021-04-28 21:57:40,103 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=999, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1162, PETRI_PLACES=104, PETRI_TRANSITIONS=158} [2021-04-28 21:57:40,104 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -51 predicate places. [2021-04-28 21:57:40,104 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 21:57:40,104 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 158 transitions, 1162 flow [2021-04-28 21:57:40,104 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 158 transitions, 1162 flow [2021-04-28 21:57:40,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 158 transitions, 1162 flow [2021-04-28 21:57:52,561 INFO L129 PetriNetUnfolder]: 57790/98835 cut-off events. [2021-04-28 21:57:52,562 INFO L130 PetriNetUnfolder]: For 1844007/4915758 co-relation queries the response was YES. [2021-04-28 21:57:53,109 INFO L84 FinitePrefix]: Finished finitePrefix Result has 475785 conditions, 98835 events. 57790/98835 cut-off events. For 1844007/4915758 co-relation queries the response was YES. Maximal size of possible extension queue 20406. Compared 1174408 event pairs, 19 based on Foata normal form. 34/25248 useless extension candidates. Maximal degree in co-relation 475759. Up to 70633 conditions per place. [2021-04-28 21:57:54,026 INFO L146 LiptonReduction]: Number of co-enabled transitions 5674 [2021-04-28 21:57:54,582 INFO L158 LiptonReduction]: Checked pairs total: 2726 [2021-04-28 21:57:54,582 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 21:57:54,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14478 [2021-04-28 21:57:54,584 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 158 transitions, 1162 flow [2021-04-28 21:57:54,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 247.85714285714286) internal successors, (1735), 7 states have internal predecessors, (1735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:54,584 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 21:57:54,584 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 21:57:54,585 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 21:57:54,585 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 21:57:54,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 21:57:54,585 INFO L82 PathProgramCache]: Analyzing trace with hash 455458177, now seen corresponding path program 1 times [2021-04-28 21:57:54,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 21:57:54,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895972311] [2021-04-28 21:57:54,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 21:57:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 21:57:54,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:54,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 21:57:54,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:54,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:54,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 21:57:54,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 21:57:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 21:57:54,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895972311] [2021-04-28 21:57:54,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 21:57:54,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 21:57:54,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829972150] [2021-04-28 21:57:54,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 21:57:54,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 21:57:54,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 21:57:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 21:57:54,668 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 390 [2021-04-28 21:57:54,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 158 transitions, 1162 flow. Second operand has 4 states, 4 states have (on average 272.0) internal successors, (1088), 4 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:57:54,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 21:57:54,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 390 [2021-04-28 21:57:54,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 21:58:28,235 INFO L129 PetriNetUnfolder]: 126233/218703 cut-off events. [2021-04-28 21:58:28,235 INFO L130 PetriNetUnfolder]: For 1184724/2495861 co-relation queries the response was YES. [2021-04-28 21:58:29,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1043876 conditions, 218703 events. 126233/218703 cut-off events. For 1184724/2495861 co-relation queries the response was YES. Maximal size of possible extension queue 34236. Compared 2768547 event pairs, 30 based on Foata normal form. 139/60191 useless extension candidates. Maximal degree in co-relation 1043848. Up to 152281 conditions per place. [2021-04-28 21:58:29,977 INFO L132 encePairwiseOnDemand]: 387/390 looper letters, 3 selfloop transitions, 2 changer transitions 7/159 dead transitions. [2021-04-28 21:58:29,977 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 159 transitions, 1174 flow [2021-04-28 21:58:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 21:58:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 21:58:29,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1090 transitions. [2021-04-28 21:58:29,985 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6987179487179487 [2021-04-28 21:58:29,985 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1090 transitions. [2021-04-28 21:58:29,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1090 transitions. [2021-04-28 21:58:29,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 21:58:29,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1090 transitions. [2021-04-28 21:58:29,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 272.5) internal successors, (1090), 4 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:58:29,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:58:29,992 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 390.0) internal successors, (1950), 5 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 21:58:29,993 INFO L185 Difference]: Start difference. First operand has 103 places, 158 transitions, 1162 flow. Second operand 4 states and 1090 transitions. [2021-04-28 21:58:29,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 159 transitions, 1174 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown