/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:37:50,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:37:50,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:37:50,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:37:50,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:37:50,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:37:50,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:37:50,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:37:50,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:37:50,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:37:50,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:37:50,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:37:50,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:37:50,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:37:50,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:37:50,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:37:50,819 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:37:50,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:37:50,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:37:50,830 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:37:50,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:37:50,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:37:50,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:37:50,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:37:50,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 10:37:50,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 10:37:50,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 10:37:50,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 10:37:50,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 10:37:50,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 10:37:50,844 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:37:50,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:37:50,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:37:50,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:37:50,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:37:50,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:37:50,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:37:50,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:37:50,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:37:50,849 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:37:50,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:37:50,853 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:37:50,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:37:50,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:37:50,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:37:50,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:37:50,890 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:37:50,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:37:50,891 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:37:50,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:37:50,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:37:50,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:37:50,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:37:50,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:37:50,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:37:50,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:37:50,894 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:37:50,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:37:50,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:37:50,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:37:50,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:37:50,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:37:50,895 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:37:51,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:37:51,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:37:51,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:37:51,224 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:37:51,224 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:37:51,225 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-03-26 10:37:51,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c9f801b/8eac86509ece4766af6061961ee1c782/FLAG861a01982 [2021-03-26 10:37:51,729 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:37:51,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i [2021-03-26 10:37:51,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c9f801b/8eac86509ece4766af6061961ee1c782/FLAG861a01982 [2021-03-26 10:37:52,098 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68c9f801b/8eac86509ece4766af6061961ee1c782 [2021-03-26 10:37:52,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:37:52,101 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:37:52,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:37:52,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:37:52,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:37:52,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eff25e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52, skipping insertion in model container [2021-03-26 10:37:52,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:37:52,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:37:52,290 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i[950,963] [2021-03-26 10:37:52,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:37:52,404 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:37:52,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.oepc.i[950,963] [2021-03-26 10:37:52,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:37:52,550 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:37:52,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52 WrapperNode [2021-03-26 10:37:52,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:37:52,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:37:52,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:37:52,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:37:52,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:37:52,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:37:52,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:37:52,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:37:52,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... [2021-03-26 10:37:52,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:37:52,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:37:52,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:37:52,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:37:52,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:37:52,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:37:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:37:52,736 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:37:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:37:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:37:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:37:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:37:52,739 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:37:53,186 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:37:53,187 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:37:53,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:37:53 BoogieIcfgContainer [2021-03-26 10:37:53,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:37:53,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:37:53,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:37:53,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:37:53,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:37:52" (1/3) ... [2021-03-26 10:37:53,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54708333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:37:53, skipping insertion in model container [2021-03-26 10:37:53,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:37:52" (2/3) ... [2021-03-26 10:37:53,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54708333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:37:53, skipping insertion in model container [2021-03-26 10:37:53,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:37:53" (3/3) ... [2021-03-26 10:37:53,197 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.oepc.i [2021-03-26 10:37:53,202 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:37:53,206 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:37:53,207 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:37:53,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,239 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,240 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,241 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,241 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,241 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,241 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,242 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,243 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,244 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,246 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,246 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,247 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,247 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,247 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,250 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,250 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,251 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,253 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,253 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,257 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,257 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,257 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,262 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,263 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,263 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:37:53,265 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:37:53,280 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:37:53,296 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:37:53,297 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:37:53,297 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:37:53,297 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:37:53,297 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:37:53,297 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:37:53,297 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:37:53,297 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:37:53,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:37:53,336 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:37:53,336 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:37:53,339 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:37:53,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:37:53,343 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:37:53,344 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:53,355 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:37:53,358 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:37:53,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:37:53,372 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:37:53,372 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:37:53,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:37:53,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:37:54,956 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-26 10:37:55,022 INFO L154 LiptonReduction]: Checked pairs total: 1010 [2021-03-26 10:37:55,023 INFO L156 LiptonReduction]: Total number of compositions: 38 [2021-03-26 10:37:55,025 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1682 [2021-03-26 10:37:55,034 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2021-03-26 10:37:55,034 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:37:55,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:55,035 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:55,035 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:55,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:55,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1013680624, now seen corresponding path program 1 times [2021-03-26 10:37:55,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:55,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303965718] [2021-03-26 10:37:55,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:55,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:55,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:37:55,268 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:37:55,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:37:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:55,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303965718] [2021-03-26 10:37:55,284 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:55,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:37:55,284 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658246767] [2021-03-26 10:37:55,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:37:55,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:55,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:37:55,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:37:55,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 113 [2021-03-26 10:37:55,304 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:55,305 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:55,305 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 113 [2021-03-26 10:37:55,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:55,379 INFO L129 PetriNetUnfolder]: 46/141 cut-off events. [2021-03-26 10:37:55,379 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:37:55,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 141 events. 46/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 585 event pairs, 14 based on Foata normal form. 5/133 useless extension candidates. Maximal degree in co-relation 236. Up to 54 conditions per place. [2021-03-26 10:37:55,381 INFO L132 encePairwiseOnDemand]: 106/113 looper letters, 7 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2021-03-26 10:37:55,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 89 flow [2021-03-26 10:37:55,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:37:55,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:37:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2021-03-26 10:37:55,404 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8112094395280236 [2021-03-26 10:37:55,405 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 275 transitions. [2021-03-26 10:37:55,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 275 transitions. [2021-03-26 10:37:55,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:55,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 275 transitions. [2021-03-26 10:37:55,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:55,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:55,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:55,432 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 275 transitions. [2021-03-26 10:37:55,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 89 flow [2021-03-26 10:37:55,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:37:55,436 INFO L241 Difference]: Finished difference. Result has 33 places, 27 transitions, 96 flow [2021-03-26 10:37:55,438 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=33, PETRI_TRANSITIONS=27} [2021-03-26 10:37:55,439 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2021-03-26 10:37:55,439 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:55,439 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:37:55,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 27 transitions, 96 flow [2021-03-26 10:37:55,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 27 transitions, 96 flow [2021-03-26 10:37:55,470 INFO L129 PetriNetUnfolder]: 46/153 cut-off events. [2021-03-26 10:37:55,471 INFO L130 PetriNetUnfolder]: For 24/28 co-relation queries the response was YES. [2021-03-26 10:37:55,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 153 events. 46/153 cut-off events. For 24/28 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 706 event pairs, 14 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 296. Up to 53 conditions per place. [2021-03-26 10:37:55,474 INFO L142 LiptonReduction]: Number of co-enabled transitions 200 [2021-03-26 10:37:56,006 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:37:56,227 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:37:56,334 INFO L154 LiptonReduction]: Checked pairs total: 273 [2021-03-26 10:37:56,334 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:37:56,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 895 [2021-03-26 10:37:56,337 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2021-03-26 10:37:56,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:56,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:56,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:37:56,338 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:56,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1359329172, now seen corresponding path program 1 times [2021-03-26 10:37:56,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:56,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873993776] [2021-03-26 10:37:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:56,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:56,447 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:37:56,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:37:56,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:56,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873993776] [2021-03-26 10:37:56,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:56,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:37:56,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984108793] [2021-03-26 10:37:56,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:37:56,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:56,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:37:56,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:37:56,466 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 118 [2021-03-26 10:37:56,466 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,466 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:56,466 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 118 [2021-03-26 10:37:56,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:56,490 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-03-26 10:37:56,490 INFO L130 PetriNetUnfolder]: For 32/104 co-relation queries the response was YES. [2021-03-26 10:37:56,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 86 events. 23/86 cut-off events. For 32/104 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 317 event pairs, 4 based on Foata normal form. 8/90 useless extension candidates. Maximal degree in co-relation 228. Up to 30 conditions per place. [2021-03-26 10:37:56,491 INFO L132 encePairwiseOnDemand]: 112/118 looper letters, 10 selfloop transitions, 6 changer transitions 2/28 dead transitions. [2021-03-26 10:37:56,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 28 transitions, 152 flow [2021-03-26 10:37:56,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:37:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:37:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-03-26 10:37:56,499 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7923728813559322 [2021-03-26 10:37:56,499 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-03-26 10:37:56,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-03-26 10:37:56,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:56,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-03-26 10:37:56,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,505 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,505 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 4 states and 374 transitions. [2021-03-26 10:37:56,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 28 transitions, 152 flow [2021-03-26 10:37:56,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 28 transitions, 134 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:37:56,508 INFO L241 Difference]: Finished difference. Result has 32 places, 25 transitions, 118 flow [2021-03-26 10:37:56,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=118, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2021-03-26 10:37:56,508 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:37:56,509 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:56,509 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 25 transitions, 118 flow [2021-03-26 10:37:56,510 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 25 transitions, 118 flow [2021-03-26 10:37:56,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 25 transitions, 118 flow [2021-03-26 10:37:56,518 INFO L129 PetriNetUnfolder]: 23/86 cut-off events. [2021-03-26 10:37:56,518 INFO L130 PetriNetUnfolder]: For 44/52 co-relation queries the response was YES. [2021-03-26 10:37:56,519 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 86 events. 23/86 cut-off events. For 44/52 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 336 event pairs, 3 based on Foata normal form. 1/85 useless extension candidates. Maximal degree in co-relation 199. Up to 30 conditions per place. [2021-03-26 10:37:56,520 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 10:37:56,534 INFO L154 LiptonReduction]: Checked pairs total: 121 [2021-03-26 10:37:56,534 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:37:56,535 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 10:37:56,537 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 118 flow [2021-03-26 10:37:56,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,538 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:56,538 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:56,538 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:37:56,538 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:56,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:56,538 INFO L82 PathProgramCache]: Analyzing trace with hash -292561667, now seen corresponding path program 1 times [2021-03-26 10:37:56,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:56,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999367891] [2021-03-26 10:37:56,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:56,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:56,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999367891] [2021-03-26 10:37:56,627 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:56,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 10:37:56,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000169572] [2021-03-26 10:37:56,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:37:56,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:56,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:37:56,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:37:56,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 118 [2021-03-26 10:37:56,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:56,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 118 [2021-03-26 10:37:56,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:56,643 INFO L129 PetriNetUnfolder]: 22/82 cut-off events. [2021-03-26 10:37:56,643 INFO L130 PetriNetUnfolder]: For 90/116 co-relation queries the response was YES. [2021-03-26 10:37:56,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 82 events. 22/82 cut-off events. For 90/116 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 296 event pairs, 2 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 203. Up to 30 conditions per place. [2021-03-26 10:37:56,645 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 1 selfloop transitions, 4 changer transitions 0/25 dead transitions. [2021-03-26 10:37:56,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 128 flow [2021-03-26 10:37:56,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:37:56,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:37:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 10:37:56,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8757062146892656 [2021-03-26 10:37:56,647 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:56,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,649 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,649 INFO L185 Difference]: Start difference. First operand has 32 places, 25 transitions, 118 flow. Second operand 3 states and 310 transitions. [2021-03-26 10:37:56,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 128 flow [2021-03-26 10:37:56,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 125 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:37:56,652 INFO L241 Difference]: Finished difference. Result has 34 places, 25 transitions, 129 flow [2021-03-26 10:37:56,652 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=129, PETRI_PLACES=34, PETRI_TRANSITIONS=25} [2021-03-26 10:37:56,652 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2021-03-26 10:37:56,652 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:56,652 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 25 transitions, 129 flow [2021-03-26 10:37:56,653 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 25 transitions, 129 flow [2021-03-26 10:37:56,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 25 transitions, 129 flow [2021-03-26 10:37:56,659 INFO L129 PetriNetUnfolder]: 22/89 cut-off events. [2021-03-26 10:37:56,659 INFO L130 PetriNetUnfolder]: For 53/62 co-relation queries the response was YES. [2021-03-26 10:37:56,660 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 89 events. 22/89 cut-off events. For 53/62 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 383 event pairs, 4 based on Foata normal form. 1/88 useless extension candidates. Maximal degree in co-relation 218. Up to 30 conditions per place. [2021-03-26 10:37:56,661 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 10:37:56,665 INFO L154 LiptonReduction]: Checked pairs total: 74 [2021-03-26 10:37:56,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:37:56,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 10:37:56,669 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 25 transitions, 129 flow [2021-03-26 10:37:56,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:56,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:56,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:37:56,670 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:56,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:56,671 INFO L82 PathProgramCache]: Analyzing trace with hash -262165144, now seen corresponding path program 1 times [2021-03-26 10:37:56,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:56,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006557667] [2021-03-26 10:37:56,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:56,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:37:56,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:56,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006557667] [2021-03-26 10:37:56,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:56,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:37:56,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371537376] [2021-03-26 10:37:56,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:37:56,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:56,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:37:56,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:37:56,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 118 [2021-03-26 10:37:56,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 25 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:56,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 118 [2021-03-26 10:37:56,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:56,757 INFO L129 PetriNetUnfolder]: 20/87 cut-off events. [2021-03-26 10:37:56,758 INFO L130 PetriNetUnfolder]: For 99/164 co-relation queries the response was YES. [2021-03-26 10:37:56,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 87 events. 20/87 cut-off events. For 99/164 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 360 event pairs, 0 based on Foata normal form. 5/89 useless extension candidates. Maximal degree in co-relation 269. Up to 34 conditions per place. [2021-03-26 10:37:56,758 INFO L132 encePairwiseOnDemand]: 115/118 looper letters, 10 selfloop transitions, 5 changer transitions 4/32 dead transitions. [2021-03-26 10:37:56,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 32 transitions, 209 flow [2021-03-26 10:37:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:37:56,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:37:56,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2021-03-26 10:37:56,761 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8757062146892656 [2021-03-26 10:37:56,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:56,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2021-03-26 10:37:56,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,765 INFO L185 Difference]: Start difference. First operand has 34 places, 25 transitions, 129 flow. Second operand 3 states and 310 transitions. [2021-03-26 10:37:56,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 32 transitions, 209 flow [2021-03-26 10:37:56,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 32 transitions, 201 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 10:37:56,769 INFO L241 Difference]: Finished difference. Result has 35 places, 25 transitions, 138 flow [2021-03-26 10:37:56,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=35, PETRI_TRANSITIONS=25} [2021-03-26 10:37:56,769 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2021-03-26 10:37:56,769 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:56,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 25 transitions, 138 flow [2021-03-26 10:37:56,770 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 25 transitions, 138 flow [2021-03-26 10:37:56,770 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 138 flow [2021-03-26 10:37:56,775 INFO L129 PetriNetUnfolder]: 13/64 cut-off events. [2021-03-26 10:37:56,775 INFO L130 PetriNetUnfolder]: For 52/60 co-relation queries the response was YES. [2021-03-26 10:37:56,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 64 events. 13/64 cut-off events. For 52/60 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 236 event pairs, 1 based on Foata normal form. 1/64 useless extension candidates. Maximal degree in co-relation 173. Up to 21 conditions per place. [2021-03-26 10:37:56,776 INFO L142 LiptonReduction]: Number of co-enabled transitions 146 [2021-03-26 10:37:56,779 INFO L154 LiptonReduction]: Checked pairs total: 106 [2021-03-26 10:37:56,779 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:37:56,779 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-26 10:37:56,781 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 138 flow [2021-03-26 10:37:56,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,781 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:56,781 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:56,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:37:56,782 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:56,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:56,782 INFO L82 PathProgramCache]: Analyzing trace with hash -479477582, now seen corresponding path program 1 times [2021-03-26 10:37:56,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:56,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119146750] [2021-03-26 10:37:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:56,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:56,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:56,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:56,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:56,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119146750] [2021-03-26 10:37:56,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:56,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:37:56,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246018527] [2021-03-26 10:37:56,838 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:37:56,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:56,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:37:56,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:37:56,840 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 118 [2021-03-26 10:37:56,840 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:56,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 118 [2021-03-26 10:37:56,843 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:56,864 INFO L129 PetriNetUnfolder]: 16/74 cut-off events. [2021-03-26 10:37:56,864 INFO L130 PetriNetUnfolder]: For 142/174 co-relation queries the response was YES. [2021-03-26 10:37:56,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 74 events. 16/74 cut-off events. For 142/174 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 291 event pairs, 1 based on Foata normal form. 8/81 useless extension candidates. Maximal degree in co-relation 215. Up to 26 conditions per place. [2021-03-26 10:37:56,870 INFO L132 encePairwiseOnDemand]: 114/118 looper letters, 1 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2021-03-26 10:37:56,870 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 27 transitions, 168 flow [2021-03-26 10:37:56,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:37:56,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:37:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2021-03-26 10:37:56,872 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8453389830508474 [2021-03-26 10:37:56,872 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2021-03-26 10:37:56,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2021-03-26 10:37:56,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:56,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2021-03-26 10:37:56,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,875 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:56,875 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 138 flow. Second operand 4 states and 399 transitions. [2021-03-26 10:37:56,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 27 transitions, 168 flow [2021-03-26 10:37:56,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 27 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 10:37:56,878 INFO L241 Difference]: Finished difference. Result has 39 places, 20 transitions, 121 flow [2021-03-26 10:37:56,878 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=121, PETRI_PLACES=39, PETRI_TRANSITIONS=20} [2021-03-26 10:37:56,878 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2021-03-26 10:37:56,878 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:56,878 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 20 transitions, 121 flow [2021-03-26 10:37:56,879 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 20 transitions, 121 flow [2021-03-26 10:37:56,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 20 transitions, 121 flow [2021-03-26 10:37:56,881 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-26 10:37:56,882 INFO L130 PetriNetUnfolder]: For 27/28 co-relation queries the response was YES. [2021-03-26 10:37:56,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 28 events. 1/28 cut-off events. For 27/28 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 78. Up to 7 conditions per place. [2021-03-26 10:37:56,882 INFO L142 LiptonReduction]: Number of co-enabled transitions 98 [2021-03-26 10:37:57,059 INFO L154 LiptonReduction]: Checked pairs total: 132 [2021-03-26 10:37:57,060 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:37:57,060 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-03-26 10:37:57,061 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 18 transitions, 127 flow [2021-03-26 10:37:57,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:57,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:57,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:37:57,061 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:57,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1980600870, now seen corresponding path program 1 times [2021-03-26 10:37:57,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:57,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148345463] [2021-03-26 10:37:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:57,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:57,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:57,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:57,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:37:57,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:57,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148345463] [2021-03-26 10:37:57,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:57,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:37:57,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829540839] [2021-03-26 10:37:57,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 10:37:57,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:57,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 10:37:57,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 10:37:57,092 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 123 [2021-03-26 10:37:57,093 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 18 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 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) [2021-03-26 10:37:57,093 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:57,093 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 123 [2021-03-26 10:37:57,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:57,115 INFO L129 PetriNetUnfolder]: 26/64 cut-off events. [2021-03-26 10:37:57,115 INFO L130 PetriNetUnfolder]: For 208/238 co-relation queries the response was YES. [2021-03-26 10:37:57,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 64 events. 26/64 cut-off events. For 208/238 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 176 event pairs, 8 based on Foata normal form. 5/67 useless extension candidates. Maximal degree in co-relation 231. Up to 50 conditions per place. [2021-03-26 10:37:57,116 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 4 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2021-03-26 10:37:57,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 22 transitions, 171 flow [2021-03-26 10:37:57,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 10:37:57,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 10:37:57,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2021-03-26 10:37:57,117 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8265582655826558 [2021-03-26 10:37:57,117 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2021-03-26 10:37:57,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2021-03-26 10:37:57,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:57,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2021-03-26 10:37:57,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 123.0) internal successors, (492), 4 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,120 INFO L185 Difference]: Start difference. First operand has 37 places, 18 transitions, 127 flow. Second operand 3 states and 305 transitions. [2021-03-26 10:37:57,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 22 transitions, 171 flow [2021-03-26 10:37:57,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 121 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-26 10:37:57,123 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 83 flow [2021-03-26 10:37:57,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2021-03-26 10:37:57,123 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2021-03-26 10:37:57,123 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:57,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 17 transitions, 83 flow [2021-03-26 10:37:57,124 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 17 transitions, 83 flow [2021-03-26 10:37:57,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 17 transitions, 83 flow [2021-03-26 10:37:57,128 INFO L129 PetriNetUnfolder]: 12/40 cut-off events. [2021-03-26 10:37:57,128 INFO L130 PetriNetUnfolder]: For 41/44 co-relation queries the response was YES. [2021-03-26 10:37:57,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 40 events. 12/40 cut-off events. For 41/44 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 88 event pairs, 7 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 95. Up to 28 conditions per place. [2021-03-26 10:37:57,128 INFO L142 LiptonReduction]: Number of co-enabled transitions 50 [2021-03-26 10:37:57,171 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 10:37:57,171 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:37:57,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 48 [2021-03-26 10:37:57,172 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 88 flow [2021-03-26 10:37:57,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 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) [2021-03-26 10:37:57,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:37:57,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:37:57,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:37:57,172 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:37:57,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:37:57,173 INFO L82 PathProgramCache]: Analyzing trace with hash -336226306, now seen corresponding path program 1 times [2021-03-26 10:37:57,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:37:57,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068674595] [2021-03-26 10:37:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:37:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:37:57,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:57,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:37:57,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:57,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:57,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:37:57,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:37:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:37:57,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068674595] [2021-03-26 10:37:57,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:37:57,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:37:57,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268582372] [2021-03-26 10:37:57,223 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:37:57,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:37:57,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:37:57,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:37:57,225 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 124 [2021-03-26 10:37:57,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 88 flow. Second operand has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:37:57,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 124 [2021-03-26 10:37:57,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:37:57,243 INFO L129 PetriNetUnfolder]: 10/34 cut-off events. [2021-03-26 10:37:57,244 INFO L130 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2021-03-26 10:37:57,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 34 events. 10/34 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 6 based on Foata normal form. 2/34 useless extension candidates. Maximal degree in co-relation 94. Up to 23 conditions per place. [2021-03-26 10:37:57,245 INFO L132 encePairwiseOnDemand]: 120/124 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-03-26 10:37:57,245 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 94 flow [2021-03-26 10:37:57,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:37:57,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:37:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 387 transitions. [2021-03-26 10:37:57,247 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.780241935483871 [2021-03-26 10:37:57,247 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 387 transitions. [2021-03-26 10:37:57,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 387 transitions. [2021-03-26 10:37:57,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:37:57,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 387 transitions. [2021-03-26 10:37:57,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,249 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,249 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 88 flow. Second operand 4 states and 387 transitions. [2021-03-26 10:37:57,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 94 flow [2021-03-26 10:37:57,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 16 transitions, 79 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 10:37:57,250 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:37:57,250 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:37:57,251 INFO L343 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2021-03-26 10:37:57,251 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:37:57,251 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:37:57,251 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:37:57,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:37:57,251 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:37:57,251 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:37:57,251 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. [2021-03-26 10:37:57,252 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:37:57,252 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:37:57,252 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:37:57,252 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:37:57,253 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:37:57,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.25) internal successors, (385), 4 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:37:57,253 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:37:57,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:37:57 BasicIcfg [2021-03-26 10:37:57,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:37:57,257 INFO L168 Benchmark]: Toolchain (without parser) took 5156.29 ms. Allocated memory was 318.8 MB in the beginning and 383.8 MB in the end (delta: 65.0 MB). Free memory was 282.0 MB in the beginning and 218.0 MB in the end (delta: 64.0 MB). Peak memory consumption was 131.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:37:57,258 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 318.8 MB. Free memory was 299.9 MB in the beginning and 299.7 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:37:57,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.34 ms. Allocated memory is still 318.8 MB. Free memory was 281.8 MB in the beginning and 283.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:37:57,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.58 ms. Allocated memory is still 318.8 MB. Free memory was 283.2 MB in the beginning and 281.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:37:57,258 INFO L168 Benchmark]: Boogie Preprocessor took 32.91 ms. Allocated memory is still 318.8 MB. Free memory was 281.1 MB in the beginning and 280.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:37:57,258 INFO L168 Benchmark]: RCFGBuilder took 540.85 ms. Allocated memory is still 318.8 MB. Free memory was 280.1 MB in the beginning and 257.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:37:57,259 INFO L168 Benchmark]: TraceAbstraction took 4066.32 ms. Allocated memory was 318.8 MB in the beginning and 383.8 MB in the end (delta: 65.0 MB). Free memory was 256.0 MB in the beginning and 218.0 MB in the end (delta: 38.0 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:37:57,260 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 318.8 MB. Free memory was 299.9 MB in the beginning and 299.7 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 448.34 ms. Allocated memory is still 318.8 MB. Free memory was 281.8 MB in the beginning and 283.2 MB in the end (delta: -1.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 60.58 ms. Allocated memory is still 318.8 MB. Free memory was 283.2 MB in the beginning and 281.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.91 ms. Allocated memory is still 318.8 MB. Free memory was 281.1 MB in the beginning and 280.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 540.85 ms. Allocated memory is still 318.8 MB. Free memory was 280.1 MB in the beginning and 257.0 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4066.32 ms. Allocated memory was 318.8 MB in the beginning and 383.8 MB in the end (delta: 65.0 MB). Free memory was 256.0 MB in the beginning and 218.0 MB in the end (delta: 38.0 MB). Peak memory consumption was 105.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1665.0ms, 69 PlacesBefore, 32 PlacesAfterwards, 60 TransitionsBefore, 22 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 1010 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 707, positive: 671, positive conditional: 671, positive unconditional: 0, negative: 36, negative conditional: 36, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 707, positive: 671, positive conditional: 0, positive unconditional: 671, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 707, positive: 671, positive conditional: 0, positive unconditional: 671, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 538, positive: 518, positive conditional: 0, positive unconditional: 518, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 538, positive: 511, positive conditional: 0, positive unconditional: 511, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 115, positive: 34, positive conditional: 0, positive unconditional: 34, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 707, positive: 153, positive conditional: 0, positive unconditional: 153, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 538, unknown conditional: 0, unknown unconditional: 538] , Statistics on independence cache: Total cache size (in pairs): 538, Positive cache size: 518, Positive conditional cache size: 0, Positive unconditional cache size: 518, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 889.2ms, 33 PlacesBefore, 28 PlacesAfterwards, 27 TransitionsBefore, 22 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 273 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 125, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 125, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 125, positive: 109, positive conditional: 0, positive unconditional: 109, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 34, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 125, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 44, unknown conditional: 0, unknown unconditional: 44] , Statistics on independence cache: Total cache size (in pairs): 582, Positive cache size: 557, Positive conditional cache size: 0, Positive unconditional cache size: 557, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 15 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.0ms, 32 PlacesBefore, 32 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 121 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 69, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 34 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 74 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 46, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.1ms, 35 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 72, positive: 64, positive conditional: 0, positive unconditional: 64, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 588, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 181.3ms, 39 PlacesBefore, 37 PlacesAfterwards, 20 TransitionsBefore, 18 TransitionsAfterwards, 98 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 105, positive: 94, positive conditional: 94, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 105, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 105, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 32, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 105, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 11, unknown conditional: 0, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 33 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.2ms, 32 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 4, positive: 4, positive conditional: 3, positive unconditional: 1, 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): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 30 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 599, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.5ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3961.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 343.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1732.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 42 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 52.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=4, InterpolantAutomatonStates: 24, 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: 17.3ms SsaConstructionTime, 156.2ms SatisfiabilityAnalysisTime, 343.9ms InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 386 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...