/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/concurrent/pthreads/regression/ThreadIdTest2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:37:17,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:37:17,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:37:17,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:37:17,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:37:17,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:37:17,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:37:17,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:37:17,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:37:17,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:37:17,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:37:17,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:37:17,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:37:17,701 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:37:17,703 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:37:17,705 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:37:17,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:37:17,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:37:17,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:37:17,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:37:17,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:37:17,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:37:17,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:37:17,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:37:17,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:37:17,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:37:17,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:37:17,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:37:17,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:37:17,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:37:17,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:37:17,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:37:17,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:37:17,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:37:17,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:37:17,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:37:17,748 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 [2021-04-29 03:37:17,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:37:17,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:37:17,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:37:17,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:37:17,776 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:37:17,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:37:17,777 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:37:17,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:37:17,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:37:17,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:37:17,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:37:17,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:37:17,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:37:17,778 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:37:17,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:37:17,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:37:17,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:37:17,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:37:17,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:37:17,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:37:17,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:37:17,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:37:17,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:37:17,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:37:17,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:37:17,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:37:17,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:37:17,781 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:37:17,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:37:17,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:37:17,782 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:37:18,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:37:18,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:37:18,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:37:18,197 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:37:18,198 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:37:18,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-04-29 03:37:18,281 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e705a7ec8/44abafafebba47a18a6736e296561ab6/FLAG8e72d6492 [2021-04-29 03:37:18,955 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:37:18,956 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/ThreadIdTest2.c [2021-04-29 03:37:18,956 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:37:18,956 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:37:19,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e705a7ec8/44abafafebba47a18a6736e296561ab6/FLAG8e72d6492 [2021-04-29 03:37:19,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e705a7ec8/44abafafebba47a18a6736e296561ab6 [2021-04-29 03:37:19,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:37:19,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:37:19,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:37:19,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:37:19,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:37:19,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8177f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19, skipping insertion in model container [2021-04-29 03:37:19,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:37:19,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:37:19,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:37:19,636 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:37:19,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:37:19,666 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:37:19,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19 WrapperNode [2021-04-29 03:37:19,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:37:19,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:37:19,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:37:19,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:37:19,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:37:19,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:37:19,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:37:19,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:37:19,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (1/1) ... [2021-04-29 03:37:19,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:37:19,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:37:19,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:37:19,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:37:19,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (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 [2021-04-29 03:37:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:37:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2021-04-29 03:37:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2021-04-29 03:37:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:37:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:37:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 03:37:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:37:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:37:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure inc [2021-04-29 03:37:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure inc [2021-04-29 03:37:19,818 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:37:20,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:37:20,049 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:37:20,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:37:20 BoogieIcfgContainer [2021-04-29 03:37:20,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:37:20,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:37:20,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:37:20,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:37:20,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:37:19" (1/3) ... [2021-04-29 03:37:20,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ac24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:37:20, skipping insertion in model container [2021-04-29 03:37:20,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:37:19" (2/3) ... [2021-04-29 03:37:20,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e9ac24f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:37:20, skipping insertion in model container [2021-04-29 03:37:20,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:37:20" (3/3) ... [2021-04-29 03:37:20,061 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest2.c [2021-04-29 03:37:20,069 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:37:20,074 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:37:20,075 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:37:20,134 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,134 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,134 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,134 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,135 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,135 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,135 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,135 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,136 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,136 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,137 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,137 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,138 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,138 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,138 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,139 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,139 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,139 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,140 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,140 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,141 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,141 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,141 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,142 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,142 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,142 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,143 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,143 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,143 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,144 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,144 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,145 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,145 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,145 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,145 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,146 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,149 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,149 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,150 WARN L313 ript$VariableManager]: TermVariabe |incThread1of1ForFork0_#t~post0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,150 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,150 WARN L313 ript$VariableManager]: TermVariabe incThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,156 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,157 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,157 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,157 WARN L313 ript$VariableManager]: TermVariabe |decThread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,158 WARN L313 ript$VariableManager]: TermVariabe decThread1of1ForFork1_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:37:20,166 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-04-29 03:37:20,200 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 03:37:20,255 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:37:20,258 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:37:20,258 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:37:20,258 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:37:20,258 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:37:20,259 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:37:20,259 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:37:20,259 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:37:20,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 100 flow [2021-04-29 03:37:20,320 INFO L129 PetriNetUnfolder]: 0/51 cut-off events. [2021-04-29 03:37:20,320 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:37:20,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 0/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 51 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 03:37:20,323 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 100 flow [2021-04-29 03:37:20,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 32 transitions, 76 flow [2021-04-29 03:37:20,329 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:20,345 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 32 transitions, 76 flow [2021-04-29 03:37:20,350 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 32 transitions, 76 flow [2021-04-29 03:37:20,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 76 flow [2021-04-29 03:37:20,366 INFO L129 PetriNetUnfolder]: 0/35 cut-off events. [2021-04-29 03:37:20,366 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:37:20,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 0/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 03:37:20,369 INFO L146 LiptonReduction]: Number of co-enabled transitions 252 [2021-04-29 03:37:22,353 INFO L158 LiptonReduction]: Checked pairs total: 1080 [2021-04-29 03:37:22,353 INFO L160 LiptonReduction]: Total number of compositions: 32 [2021-04-29 03:37:22,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2029 [2021-04-29 03:37:22,387 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-04-29 03:37:22,387 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:37:22,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:22,390 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:22,390 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:22,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:22,402 INFO L82 PathProgramCache]: Analyzing trace with hash 928166297, now seen corresponding path program 1 times [2021-04-29 03:37:22,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:22,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892571865] [2021-04-29 03:37:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:22,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:37:22,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:22,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:22,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892571865] [2021-04-29 03:37:22,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:22,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 03:37:22,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138531778] [2021-04-29 03:37:22,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:37:22,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:22,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:37:22,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:37:22,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 74 [2021-04-29 03:37:22,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:22,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 74 [2021-04-29 03:37:22,606 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:22,692 INFO L129 PetriNetUnfolder]: 32/139 cut-off events. [2021-04-29 03:37:22,692 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-29 03:37:22,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 139 events. 32/139 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 674 event pairs, 30 based on Foata normal form. 13/79 useless extension candidates. Maximal degree in co-relation 199. Up to 96 conditions per place. [2021-04-29 03:37:22,696 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 8 selfloop transitions, 10 changer transitions 20/46 dead transitions. [2021-04-29 03:37:22,696 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 164 flow [2021-04-29 03:37:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:37:22,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:37:22,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2021-04-29 03:37:22,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7117117117117117 [2021-04-29 03:37:22,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 158 transitions. [2021-04-29 03:37:22,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 158 transitions. [2021-04-29 03:37:22,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:22,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 158 transitions. [2021-04-29 03:37:22,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,724 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,727 INFO L185 Difference]: Start difference. First operand has 41 places, 35 transitions, 82 flow. Second operand 3 states and 158 transitions. [2021-04-29 03:37:22,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 164 flow [2021-04-29 03:37:22,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 156 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 03:37:22,733 INFO L241 Difference]: Finished difference. Result has 40 places, 24 transitions, 88 flow [2021-04-29 03:37:22,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=88, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2021-04-29 03:37:22,736 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2021-04-29 03:37:22,736 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:22,736 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 24 transitions, 88 flow [2021-04-29 03:37:22,737 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 24 transitions, 88 flow [2021-04-29 03:37:22,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 24 transitions, 88 flow [2021-04-29 03:37:22,744 INFO L129 PetriNetUnfolder]: 1/40 cut-off events. [2021-04-29 03:37:22,745 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 03:37:22,745 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 40 events. 1/40 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 159 event pairs, 1 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 24. Up to 23 conditions per place. [2021-04-29 03:37:22,746 INFO L146 LiptonReduction]: Number of co-enabled transitions 50 [2021-04-29 03:37:22,760 INFO L158 LiptonReduction]: Checked pairs total: 87 [2021-04-29 03:37:22,760 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:22,760 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 03:37:22,762 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 88 flow [2021-04-29 03:37:22,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,763 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:22,763 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:22,763 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:37:22,763 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:22,764 INFO L82 PathProgramCache]: Analyzing trace with hash -891250579, now seen corresponding path program 1 times [2021-04-29 03:37:22,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:22,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515876380] [2021-04-29 03:37:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:22,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:22,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:22,842 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:22,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:22,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:22,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:22,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:37:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:22,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515876380] [2021-04-29 03:37:22,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:22,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 03:37:22,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589622312] [2021-04-29 03:37:22,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 03:37:22,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:22,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 03:37:22,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-29 03:37:22,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 74 [2021-04-29 03:37:22,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 88 flow. Second operand has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:22,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:22,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 74 [2021-04-29 03:37:22,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:23,055 INFO L129 PetriNetUnfolder]: 9/67 cut-off events. [2021-04-29 03:37:23,055 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-04-29 03:37:23,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 67 events. 9/67 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 289 event pairs, 2 based on Foata normal form. 5/58 useless extension candidates. Maximal degree in co-relation 71. Up to 39 conditions per place. [2021-04-29 03:37:23,057 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 17 selfloop transitions, 7 changer transitions 10/40 dead transitions. [2021-04-29 03:37:23,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 40 transitions, 219 flow [2021-04-29 03:37:23,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 03:37:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 03:37:23,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-04-29 03:37:23,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5345345345345346 [2021-04-29 03:37:23,068 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-04-29 03:37:23,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-04-29 03:37:23,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:23,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-04-29 03:37:23,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,079 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,080 INFO L185 Difference]: Start difference. First operand has 27 places, 24 transitions, 88 flow. Second operand 9 states and 356 transitions. [2021-04-29 03:37:23,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 40 transitions, 219 flow [2021-04-29 03:37:23,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 203 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:37:23,085 INFO L241 Difference]: Finished difference. Result has 40 places, 28 transitions, 131 flow [2021-04-29 03:37:23,085 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=131, PETRI_PLACES=40, PETRI_TRANSITIONS=28} [2021-04-29 03:37:23,086 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2021-04-29 03:37:23,086 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:23,086 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 28 transitions, 131 flow [2021-04-29 03:37:23,087 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 28 transitions, 131 flow [2021-04-29 03:37:23,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 28 transitions, 131 flow [2021-04-29 03:37:23,105 INFO L129 PetriNetUnfolder]: 3/47 cut-off events. [2021-04-29 03:37:23,105 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-04-29 03:37:23,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 47 events. 3/47 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 165 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 87. Up to 24 conditions per place. [2021-04-29 03:37:23,107 INFO L146 LiptonReduction]: Number of co-enabled transitions 52 [2021-04-29 03:37:23,110 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:37:23,110 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:23,110 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 03:37:23,113 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 131 flow [2021-04-29 03:37:23,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,113 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:23,114 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:23,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:37:23,114 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:23,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:23,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1034286775, now seen corresponding path program 2 times [2021-04-29 03:37:23,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:23,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850065347] [2021-04-29 03:37:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:23,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:37:23,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:23,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:23,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:37:23,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:23,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850065347] [2021-04-29 03:37:23,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:23,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 03:37:23,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017359866] [2021-04-29 03:37:23,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 03:37:23,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:23,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 03:37:23,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 03:37:23,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2021-04-29 03:37:23,219 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 131 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:23,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2021-04-29 03:37:23,219 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:23,296 INFO L129 PetriNetUnfolder]: 6/56 cut-off events. [2021-04-29 03:37:23,296 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-04-29 03:37:23,298 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 56 events. 6/56 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 212 event pairs, 3 based on Foata normal form. 5/47 useless extension candidates. Maximal degree in co-relation 150. Up to 36 conditions per place. [2021-04-29 03:37:23,299 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 12 selfloop transitions, 10 changer transitions 6/35 dead transitions. [2021-04-29 03:37:23,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 35 transitions, 225 flow [2021-04-29 03:37:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 03:37:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 03:37:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2021-04-29 03:37:23,301 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2021-04-29 03:37:23,301 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:23,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,303 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,305 INFO L185 Difference]: Start difference. First operand has 36 places, 28 transitions, 131 flow. Second operand 6 states and 258 transitions. [2021-04-29 03:37:23,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 35 transitions, 225 flow [2021-04-29 03:37:23,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 35 transitions, 186 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-04-29 03:37:23,310 INFO L241 Difference]: Finished difference. Result has 39 places, 28 transitions, 138 flow [2021-04-29 03:37:23,310 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=138, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2021-04-29 03:37:23,311 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2021-04-29 03:37:23,311 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:23,311 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 28 transitions, 138 flow [2021-04-29 03:37:23,312 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 28 transitions, 138 flow [2021-04-29 03:37:23,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 28 transitions, 138 flow [2021-04-29 03:37:23,330 INFO L129 PetriNetUnfolder]: 3/45 cut-off events. [2021-04-29 03:37:23,330 INFO L130 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2021-04-29 03:37:23,330 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 45 events. 3/45 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 148 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 88. Up to 19 conditions per place. [2021-04-29 03:37:23,331 INFO L146 LiptonReduction]: Number of co-enabled transitions 50 [2021-04-29 03:37:23,334 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:37:23,334 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:23,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 03:37:23,340 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 138 flow [2021-04-29 03:37:23,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,341 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:23,341 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:23,341 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:37:23,341 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:23,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:23,342 INFO L82 PathProgramCache]: Analyzing trace with hash -885898982, now seen corresponding path program 1 times [2021-04-29 03:37:23,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:23,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290633528] [2021-04-29 03:37:23,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:23,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:37:23,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:23,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:23,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:37:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:23,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290633528] [2021-04-29 03:37:23,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:23,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 03:37:23,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680107786] [2021-04-29 03:37:23,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 03:37:23,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:23,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 03:37:23,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 03:37:23,417 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2021-04-29 03:37:23,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 138 flow. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:23,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2021-04-29 03:37:23,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:23,477 INFO L129 PetriNetUnfolder]: 5/58 cut-off events. [2021-04-29 03:37:23,478 INFO L130 PetriNetUnfolder]: For 78/80 co-relation queries the response was YES. [2021-04-29 03:37:23,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 58 events. 5/58 cut-off events. For 78/80 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 227 event pairs, 4 based on Foata normal form. 5/50 useless extension candidates. Maximal degree in co-relation 160. Up to 37 conditions per place. [2021-04-29 03:37:23,478 INFO L132 encePairwiseOnDemand]: 66/74 looper letters, 15 selfloop transitions, 4 changer transitions 8/34 dead transitions. [2021-04-29 03:37:23,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 234 flow [2021-04-29 03:37:23,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 03:37:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 03:37:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2021-04-29 03:37:23,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2021-04-29 03:37:23,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:23,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 258 transitions. [2021-04-29 03:37:23,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 43.0) internal successors, (258), 6 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,484 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,484 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,485 INFO L185 Difference]: Start difference. First operand has 36 places, 28 transitions, 138 flow. Second operand 6 states and 258 transitions. [2021-04-29 03:37:23,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 234 flow [2021-04-29 03:37:23,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 198 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 03:37:23,487 INFO L241 Difference]: Finished difference. Result has 41 places, 26 transitions, 132 flow [2021-04-29 03:37:23,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2021-04-29 03:37:23,488 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2021-04-29 03:37:23,488 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:23,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 26 transitions, 132 flow [2021-04-29 03:37:23,489 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 26 transitions, 132 flow [2021-04-29 03:37:23,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 26 transitions, 132 flow [2021-04-29 03:37:23,494 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2021-04-29 03:37:23,494 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-04-29 03:37:23,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 42 events. 2/42 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 127 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 86. Up to 19 conditions per place. [2021-04-29 03:37:23,495 INFO L146 LiptonReduction]: Number of co-enabled transitions 34 [2021-04-29 03:37:23,498 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:37:23,498 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:23,498 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-04-29 03:37:23,500 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 132 flow [2021-04-29 03:37:23,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,500 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:23,500 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:23,500 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 03:37:23,501 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:23,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:23,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1483623716, now seen corresponding path program 1 times [2021-04-29 03:37:23,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:23,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985150059] [2021-04-29 03:37:23,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:23,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-29 03:37:23,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:23,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-29 03:37:23,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 03:37:23,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:37:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:23,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985150059] [2021-04-29 03:37:23,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:23,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:37:23,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862496530] [2021-04-29 03:37:23,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 03:37:23,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:23,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 03:37:23,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 03:37:23,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 74 [2021-04-29 03:37:23,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 132 flow. Second operand has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,591 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:23,591 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 74 [2021-04-29 03:37:23,591 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:23,630 INFO L129 PetriNetUnfolder]: 2/28 cut-off events. [2021-04-29 03:37:23,630 INFO L130 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2021-04-29 03:37:23,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 28 events. 2/28 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 1 based on Foata normal form. 3/26 useless extension candidates. Maximal degree in co-relation 71. Up to 11 conditions per place. [2021-04-29 03:37:23,631 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 2 selfloop transitions, 4 changer transitions 5/21 dead transitions. [2021-04-29 03:37:23,631 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 21 transitions, 123 flow [2021-04-29 03:37:23,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 03:37:23,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 03:37:23,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 233 transitions. [2021-04-29 03:37:23,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6297297297297297 [2021-04-29 03:37:23,633 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 233 transitions. [2021-04-29 03:37:23,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 233 transitions. [2021-04-29 03:37:23,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:23,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 233 transitions. [2021-04-29 03:37:23,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 46.6) internal successors, (233), 5 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,635 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,635 INFO L185 Difference]: Start difference. First operand has 38 places, 26 transitions, 132 flow. Second operand 5 states and 233 transitions. [2021-04-29 03:37:23,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 21 transitions, 123 flow [2021-04-29 03:37:23,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 21 transitions, 77 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-04-29 03:37:23,637 INFO L241 Difference]: Finished difference. Result has 29 places, 16 transitions, 57 flow [2021-04-29 03:37:23,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=57, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2021-04-29 03:37:23,638 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -12 predicate places. [2021-04-29 03:37:23,638 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:23,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 16 transitions, 57 flow [2021-04-29 03:37:23,638 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 16 transitions, 57 flow [2021-04-29 03:37:23,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 16 transitions, 57 flow [2021-04-29 03:37:23,642 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-04-29 03:37:23,642 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 03:37:23,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 21 events. 0/21 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 11 conditions per place. [2021-04-29 03:37:23,643 INFO L146 LiptonReduction]: Number of co-enabled transitions 10 [2021-04-29 03:37:23,644 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:37:23,644 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:23,645 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-04-29 03:37:23,646 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 57 flow [2021-04-29 03:37:23,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,646 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:37:23,646 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:37:23,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 03:37:23,647 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:37:23,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:37:23,647 INFO L82 PathProgramCache]: Analyzing trace with hash 150142633, now seen corresponding path program 3 times [2021-04-29 03:37:23,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:37:23,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488136830] [2021-04-29 03:37:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:37:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:37:23,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:37:23,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:23,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:23,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:23,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:37:23,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:37:23,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:37:23,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:37:23,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488136830] [2021-04-29 03:37:23,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:37:23,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 03:37:23,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151849533] [2021-04-29 03:37:23,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 03:37:23,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:37:23,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 03:37:23,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-04-29 03:37:23,719 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 74 [2021-04-29 03:37:23,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 57 flow. Second operand has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,720 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:37:23,720 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 74 [2021-04-29 03:37:23,720 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:37:23,784 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-04-29 03:37:23,785 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 03:37:23,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 18 events. 1/18 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 19 event pairs, 0 based on Foata normal form. 5/19 useless extension candidates. Maximal degree in co-relation 31. Up to 6 conditions per place. [2021-04-29 03:37:23,785 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-04-29 03:37:23,785 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 17 transitions, 89 flow [2021-04-29 03:37:23,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 03:37:23,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 03:37:23,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 339 transitions. [2021-04-29 03:37:23,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.509009009009009 [2021-04-29 03:37:23,788 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 339 transitions. [2021-04-29 03:37:23,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 339 transitions. [2021-04-29 03:37:23,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:37:23,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 339 transitions. [2021-04-29 03:37:23,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 37.666666666666664) internal successors, (339), 9 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,791 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,791 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,792 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 57 flow. Second operand 9 states and 339 transitions. [2021-04-29 03:37:23,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 17 transitions, 89 flow [2021-04-29 03:37:23,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 17 transitions, 73 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-29 03:37:23,793 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-04-29 03:37:23,793 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-04-29 03:37:23,793 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -13 predicate places. [2021-04-29 03:37:23,793 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:37:23,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-04-29 03:37:23,794 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-04-29 03:37:23,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:37:23,794 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:37:23,794 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:37:23,794 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:37:23,795 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:37:23,795 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:37:23,795 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:37:23,795 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 03:37:23,796 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:37:23,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:37:23,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 03:37:23,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:37:23 BasicIcfg [2021-04-29 03:37:23,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:37:23,802 INFO L168 Benchmark]: Toolchain (without parser) took 4461.10 ms. Allocated memory was 302.0 MB in the beginning and 375.4 MB in the end (delta: 73.4 MB). Free memory was 276.0 MB in the beginning and 313.5 MB in the end (delta: -37.5 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:37:23,803 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:37:23,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.65 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 264.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:37:23,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 263.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:37:23,804 INFO L168 Benchmark]: Boogie Preprocessor took 20.32 ms. Allocated memory is still 302.0 MB. Free memory was 263.0 MB in the beginning and 261.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:37:23,805 INFO L168 Benchmark]: RCFGBuilder took 326.50 ms. Allocated memory is still 302.0 MB. Free memory was 261.9 MB in the beginning and 248.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. [2021-04-29 03:37:23,806 INFO L168 Benchmark]: TraceAbstraction took 3747.69 ms. Allocated memory was 302.0 MB in the beginning and 375.4 MB in the end (delta: 73.4 MB). Free memory was 247.7 MB in the beginning and 313.5 MB in the end (delta: -65.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. [2021-04-29 03:37:23,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 278.65 ms. Allocated memory is still 302.0 MB. Free memory was 272.9 MB in the beginning and 264.2 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 35.49 ms. Allocated memory is still 302.0 MB. Free memory was 264.2 MB in the beginning and 263.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 20.32 ms. Allocated memory is still 302.0 MB. Free memory was 263.0 MB in the beginning and 261.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 326.50 ms. Allocated memory is still 302.0 MB. Free memory was 261.9 MB in the beginning and 248.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3747.69 ms. Allocated memory was 302.0 MB in the beginning and 375.4 MB in the end (delta: 73.4 MB). Free memory was 247.7 MB in the beginning and 313.5 MB in the end (delta: -65.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2003.7ms, 38 PlacesBefore, 41 PlacesAfterwards, 32 TransitionsBefore, 35 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 32 TotalNumberOfCompositions, 1080 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 360, positive: 294, positive conditional: 294, positive unconditional: 0, negative: 66, negative conditional: 66, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 251, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 251, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 251, positive: 226, positive conditional: 0, positive unconditional: 226, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 100, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 360, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 251, unknown conditional: 251, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 251, Positive cache size: 226, Positive conditional cache size: 226, Positive unconditional cache size: 0, Negative cache size: 25, Negative conditional cache size: 25, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.4ms, 40 PlacesBefore, 27 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 50, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.1ms, 40 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.0ms, 39 PlacesBefore, 36 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 41 PlacesBefore, 38 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.2ms, 29 PlacesBefore, 26 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 28 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 260, Positive cache size: 233, Positive conditional cache size: 233, Positive unconditional cache size: 0, Negative cache size: 27, Negative conditional cache size: 27, Negative unconditional cache size: 0 - PositiveResult [Line: 37]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 15.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3553.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 630.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2112.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 74 SDtfs, 25 SDslu, 35 SDs, 0 SdLazy, 293 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 207.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 205.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=3, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.9ms SsaConstructionTime, 131.4ms SatisfiabilityAnalysisTime, 361.6ms InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...