/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 05:06:12,554 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 05:06:12,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 05:06:12,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 05:06:12,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 05:06:12,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 05:06:12,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 05:06:12,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 05:06:12,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 05:06:12,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 05:06:12,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 05:06:12,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 05:06:12,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 05:06:12,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 05:06:12,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 05:06:12,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 05:06:12,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 05:06:12,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 05:06:12,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 05:06:12,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 05:06:12,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 05:06:12,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 05:06:12,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 05:06:12,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 05:06:12,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 05:06:12,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 05:06:12,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 05:06:12,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 05:06:12,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 05:06:12,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 05:06:12,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 05:06:12,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 05:06:12,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 05:06:12,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 05:06:12,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 05:06:12,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 05:06:12,629 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-RepeatedVariableLbe.epf [2021-03-25 05:06:12,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 05:06:12,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 05:06:12,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 05:06:12,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 05:06:12,659 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 05:06:12,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 05:06:12,659 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 05:06:12,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 05:06:12,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 05:06:12,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 05:06:12,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 05:06:12,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 05:06:12,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 05:06:12,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 05:06:12,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 05:06:12,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 05:06:12,662 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 05:06:12,663 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 05:06:12,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 05:06:12,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 05:06:12,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 05:06:12,920 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 05:06:12,920 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 05:06:12,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-03-25 05:06:12,984 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa593831b/e98b377b603a45fd9dbe95d841a67456/FLAGccfd32fe4 [2021-03-25 05:06:13,394 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 05:06:13,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-03-25 05:06:13,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa593831b/e98b377b603a45fd9dbe95d841a67456/FLAGccfd32fe4 [2021-03-25 05:06:13,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa593831b/e98b377b603a45fd9dbe95d841a67456 [2021-03-25 05:06:13,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 05:06:13,416 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 05:06:13,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 05:06:13,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 05:06:13,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 05:06:13,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46555fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13, skipping insertion in model container [2021-03-25 05:06:13,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 05:06:13,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 05:06:13,540 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/safe022_tso.oepc.i[950,963] [2021-03-25 05:06:13,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:06:13,622 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 05:06:13,640 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/safe022_tso.oepc.i[950,963] [2021-03-25 05:06:13,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 05:06:13,733 INFO L208 MainTranslator]: Completed translation [2021-03-25 05:06:13,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13 WrapperNode [2021-03-25 05:06:13,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 05:06:13,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 05:06:13,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 05:06:13,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 05:06:13,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 05:06:13,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 05:06:13,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 05:06:13,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 05:06:13,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (1/1) ... [2021-03-25 05:06:13,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 05:06:13,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 05:06:13,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 05:06:13,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 05:06:13,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (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 [2021-03-25 05:06:13,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 05:06:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 05:06:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 05:06:13,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 05:06:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 05:06:13,958 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 05:06:13,958 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 05:06:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 05:06:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 05:06:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 05:06:13,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 05:06:13,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 05:06:13,960 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 05:06:14,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 05:06:14,169 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 05:06:14,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:06:14 BoogieIcfgContainer [2021-03-25 05:06:14,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 05:06:14,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 05:06:14,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 05:06:14,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 05:06:14,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:06:13" (1/3) ... [2021-03-25 05:06:14,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac28109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:06:14, skipping insertion in model container [2021-03-25 05:06:14,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:06:13" (2/3) ... [2021-03-25 05:06:14,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac28109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:06:14, skipping insertion in model container [2021-03-25 05:06:14,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:06:14" (3/3) ... [2021-03-25 05:06:14,177 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2021-03-25 05:06:14,180 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 05:06:14,183 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 05:06:14,183 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 05:06:14,213 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,213 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,213 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,213 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,214 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,215 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,216 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,218 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,218 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,227 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,227 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,228 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 05:06:14,232 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 05:06:14,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-25 05:06:14,269 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 05:06:14,270 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 05:06:14,270 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 05:06:14,270 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 05:06:14,270 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 05:06:14,270 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 05:06:14,270 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 05:06:14,270 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 05:06:14,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-03-25 05:06:14,304 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-03-25 05:06:14,304 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:14,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-03-25 05:06:14,306 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-03-25 05:06:14,309 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-03-25 05:06:14,310 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:14,316 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-25 05:06:14,318 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-03-25 05:06:14,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-03-25 05:06:14,327 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-03-25 05:06:14,327 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:14,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-03-25 05:06:14,329 INFO L142 LiptonReduction]: Number of co-enabled transitions 456 [2021-03-25 05:06:15,157 INFO L154 LiptonReduction]: Checked pairs total: 608 [2021-03-25 05:06:15,157 INFO L156 LiptonReduction]: Total number of compositions: 34 [2021-03-25 05:06:15,159 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 850 [2021-03-25 05:06:15,164 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-03-25 05:06:15,164 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:15,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:15,165 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:15,165 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:15,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:15,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1656014901, now seen corresponding path program 1 times [2021-03-25 05:06:15,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:15,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852276675] [2021-03-25 05:06:15,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:15,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:06:15,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:15,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852276675] [2021-03-25 05:06:15,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:15,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:06:15,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060167014] [2021-03-25 05:06:15,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:06:15,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:15,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:06:15,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:06:15,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 95 [2021-03-25 05:06:15,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 36 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-03-25 05:06:15,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:15,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 95 [2021-03-25 05:06:15,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:15,317 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 05:06:15,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:15,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:06:15,318 INFO L132 encePairwiseOnDemand]: 92/95 looper letters, 1 selfloop transitions, 2 changer transitions 0/15 dead transitions. [2021-03-25 05:06:15,318 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 15 transitions, 42 flow [2021-03-25 05:06:15,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:06:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:06:15,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 247 transitions. [2021-03-25 05:06:15,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2021-03-25 05:06:15,326 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 247 transitions. [2021-03-25 05:06:15,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 247 transitions. [2021-03-25 05:06:15,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:15,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 247 transitions. [2021-03-25 05:06:15,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 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) [2021-03-25 05:06:15,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-03-25 05:06:15,333 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 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) [2021-03-25 05:06:15,335 INFO L185 Difference]: Start difference. First operand has 22 places, 15 transitions, 36 flow. Second operand 3 states and 247 transitions. [2021-03-25 05:06:15,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 15 transitions, 42 flow [2021-03-25 05:06:15,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 15 transitions, 40 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:06:15,337 INFO L241 Difference]: Finished difference. Result has 23 places, 15 transitions, 42 flow [2021-03-25 05:06:15,338 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=23, PETRI_TRANSITIONS=15} [2021-03-25 05:06:15,339 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-25 05:06:15,339 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:15,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 15 transitions, 42 flow [2021-03-25 05:06:15,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 15 transitions, 42 flow [2021-03-25 05:06:15,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 15 transitions, 42 flow [2021-03-25 05:06:15,341 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-03-25 05:06:15,341 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 05:06:15,342 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26 conditions, 15 events. 0/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:06:15,342 INFO L142 LiptonReduction]: Number of co-enabled transitions 64 [2021-03-25 05:06:15,621 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-25 05:06:15,783 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-25 05:06:15,836 INFO L154 LiptonReduction]: Checked pairs total: 160 [2021-03-25 05:06:15,837 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 05:06:15,837 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 498 [2021-03-25 05:06:15,837 INFO L480 AbstractCegarLoop]: Abstraction has has 20 places, 12 transitions, 36 flow [2021-03-25 05:06:15,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2021-03-25 05:06:15,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:15,838 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:15,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 05:06:15,838 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:15,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:15,838 INFO L82 PathProgramCache]: Analyzing trace with hash 202651502, now seen corresponding path program 1 times [2021-03-25 05:06:15,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:15,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870789986] [2021-03-25 05:06:15,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:15,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:06:15,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:15,896 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 05:06:15,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:06:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:15,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870789986] [2021-03-25 05:06:15,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:15,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:06:15,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228502711] [2021-03-25 05:06:15,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:06:15,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:15,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:06:15,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:06:15,904 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 98 [2021-03-25 05:06:15,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 12 transitions, 36 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2021-03-25 05:06:15,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:15,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 98 [2021-03-25 05:06:15,904 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:15,922 INFO L129 PetriNetUnfolder]: 4/23 cut-off events. [2021-03-25 05:06:15,923 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 05:06:15,923 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 23 events. 4/23 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 40 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 43. Up to 9 conditions per place. [2021-03-25 05:06:15,923 INFO L132 encePairwiseOnDemand]: 93/98 looper letters, 4 selfloop transitions, 6 changer transitions 0/17 dead transitions. [2021-03-25 05:06:15,923 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 17 transitions, 71 flow [2021-03-25 05:06:15,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 05:06:15,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 05:06:15,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 387 transitions. [2021-03-25 05:06:15,925 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.789795918367347 [2021-03-25 05:06:15,925 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 387 transitions. [2021-03-25 05:06:15,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 387 transitions. [2021-03-25 05:06:15,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:15,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 387 transitions. [2021-03-25 05:06:15,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.4) internal successors, (387), 5 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) [2021-03-25 05:06:15,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2021-03-25 05:06:15,928 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 98.0) internal successors, (588), 6 states have internal predecessors, (588), 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) [2021-03-25 05:06:15,928 INFO L185 Difference]: Start difference. First operand has 20 places, 12 transitions, 36 flow. Second operand 5 states and 387 transitions. [2021-03-25 05:06:15,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 17 transitions, 71 flow [2021-03-25 05:06:15,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 17 transitions, 65 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 05:06:15,929 INFO L241 Difference]: Finished difference. Result has 24 places, 16 transitions, 67 flow [2021-03-25 05:06:15,929 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=67, PETRI_PLACES=24, PETRI_TRANSITIONS=16} [2021-03-25 05:06:15,930 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2021-03-25 05:06:15,930 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:15,930 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 24 places, 16 transitions, 67 flow [2021-03-25 05:06:15,930 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 24 places, 16 transitions, 67 flow [2021-03-25 05:06:15,930 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 16 transitions, 67 flow [2021-03-25 05:06:15,933 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-25 05:06:15,933 INFO L130 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2021-03-25 05:06:15,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 21 events. 2/21 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 42 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 45. Up to 7 conditions per place. [2021-03-25 05:06:15,934 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-25 05:06:15,935 INFO L154 LiptonReduction]: Checked pairs total: 43 [2021-03-25 05:06:15,935 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:06:15,935 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 05:06:15,935 INFO L480 AbstractCegarLoop]: Abstraction has has 24 places, 16 transitions, 67 flow [2021-03-25 05:06:15,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2021-03-25 05:06:15,936 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:15,936 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:15,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 05:06:15,936 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:15,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:15,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1894935309, now seen corresponding path program 1 times [2021-03-25 05:06:15,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:15,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163237448] [2021-03-25 05:06:15,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:15,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:15,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:15,971 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 05:06:15,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:06:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:15,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163237448] [2021-03-25 05:06:15,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:15,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:06:15,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467702209] [2021-03-25 05:06:15,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 05:06:15,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:15,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 05:06:15,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 05:06:15,978 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 98 [2021-03-25 05:06:15,979 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 16 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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) [2021-03-25 05:06:15,979 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:15,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 98 [2021-03-25 05:06:15,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:15,994 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-25 05:06:15,994 INFO L130 PetriNetUnfolder]: For 20/22 co-relation queries the response was YES. [2021-03-25 05:06:15,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 23 events. 2/23 cut-off events. For 20/22 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 40 event pairs, 1 based on Foata normal form. 4/27 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2021-03-25 05:06:15,995 INFO L132 encePairwiseOnDemand]: 94/98 looper letters, 2 selfloop transitions, 3 changer transitions 4/16 dead transitions. [2021-03-25 05:06:15,995 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 16 transitions, 85 flow [2021-03-25 05:06:15,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:06:15,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:06:15,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 310 transitions. [2021-03-25 05:06:15,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7908163265306123 [2021-03-25 05:06:15,996 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 310 transitions. [2021-03-25 05:06:15,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 310 transitions. [2021-03-25 05:06:15,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:15,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 310 transitions. [2021-03-25 05:06:15,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.5) internal successors, (310), 4 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) [2021-03-25 05:06:15,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2021-03-25 05:06:15,998 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 98.0) internal successors, (490), 5 states have internal predecessors, (490), 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) [2021-03-25 05:06:15,998 INFO L185 Difference]: Start difference. First operand has 24 places, 16 transitions, 67 flow. Second operand 4 states and 310 transitions. [2021-03-25 05:06:15,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 16 transitions, 85 flow [2021-03-25 05:06:15,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 85 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-25 05:06:15,999 INFO L241 Difference]: Finished difference. Result has 29 places, 12 transitions, 62 flow [2021-03-25 05:06:15,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=29, PETRI_TRANSITIONS=12} [2021-03-25 05:06:16,000 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 7 predicate places. [2021-03-25 05:06:16,000 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:16,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 12 transitions, 62 flow [2021-03-25 05:06:16,000 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 12 transitions, 62 flow [2021-03-25 05:06:16,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 12 transitions, 62 flow [2021-03-25 05:06:16,002 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-25 05:06:16,002 INFO L130 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2021-03-25 05:06:16,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 12 events. 0/12 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 05:06:16,003 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-25 05:06:16,022 INFO L154 LiptonReduction]: Checked pairs total: 39 [2021-03-25 05:06:16,022 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:06:16,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-25 05:06:16,023 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 11 transitions, 60 flow [2021-03-25 05:06:16,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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) [2021-03-25 05:06:16,023 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:16,023 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:16,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 05:06:16,024 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:16,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:16,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1386511719, now seen corresponding path program 1 times [2021-03-25 05:06:16,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:16,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999684469] [2021-03-25 05:06:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:16,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:16,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:06:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:16,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999684469] [2021-03-25 05:06:16,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:16,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 05:06:16,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700170084] [2021-03-25 05:06:16,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 05:06:16,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:16,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 05:06:16,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 05:06:16,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2021-03-25 05:06:16,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 11 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2021-03-25 05:06:16,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:16,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2021-03-25 05:06:16,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:16,061 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-03-25 05:06:16,062 INFO L130 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2021-03-25 05:06:16,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 19 events. 3/19 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 05:06:16,062 INFO L132 encePairwiseOnDemand]: 95/99 looper letters, 3 selfloop transitions, 3 changer transitions 0/13 dead transitions. [2021-03-25 05:06:16,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 13 transitions, 76 flow [2021-03-25 05:06:16,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 05:06:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 05:06:16,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2021-03-25 05:06:16,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8215488215488216 [2021-03-25 05:06:16,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2021-03-25 05:06:16,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2021-03-25 05:06:16,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:16,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2021-03-25 05:06:16,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2021-03-25 05:06:16,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2021-03-25 05:06:16,065 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 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) [2021-03-25 05:06:16,065 INFO L185 Difference]: Start difference. First operand has 27 places, 11 transitions, 60 flow. Second operand 3 states and 244 transitions. [2021-03-25 05:06:16,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 13 transitions, 76 flow [2021-03-25 05:06:16,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 13 transitions, 48 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-03-25 05:06:16,066 INFO L241 Difference]: Finished difference. Result has 21 places, 13 transitions, 51 flow [2021-03-25 05:06:16,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2021-03-25 05:06:16,066 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2021-03-25 05:06:16,066 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:16,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 13 transitions, 51 flow [2021-03-25 05:06:16,066 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 13 transitions, 51 flow [2021-03-25 05:06:16,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 13 transitions, 51 flow [2021-03-25 05:06:16,069 INFO L129 PetriNetUnfolder]: 3/19 cut-off events. [2021-03-25 05:06:16,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:16,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 19 events. 3/19 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 1 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 35. Up to 10 conditions per place. [2021-03-25 05:06:16,069 INFO L142 LiptonReduction]: Number of co-enabled transitions 22 [2021-03-25 05:06:16,105 INFO L154 LiptonReduction]: Checked pairs total: 14 [2021-03-25 05:06:16,106 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 05:06:16,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-25 05:06:16,106 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 52 flow [2021-03-25 05:06:16,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2021-03-25 05:06:16,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:16,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:16,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 05:06:16,107 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1388763342, now seen corresponding path program 1 times [2021-03-25 05:06:16,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:16,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621762961] [2021-03-25 05:06:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:16,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:16,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:16,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:16,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:06:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:16,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621762961] [2021-03-25 05:06:16,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:16,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:06:16,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527930000] [2021-03-25 05:06:16,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:06:16,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:16,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:06:16,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:06:16,138 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 100 [2021-03-25 05:06:16,139 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2021-03-25 05:06:16,139 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:16,139 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 100 [2021-03-25 05:06:16,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:16,151 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-25 05:06:16,151 INFO L130 PetriNetUnfolder]: For 4/5 co-relation queries the response was YES. [2021-03-25 05:06:16,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 15 events. 1/15 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 3/17 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-03-25 05:06:16,151 INFO L132 encePairwiseOnDemand]: 95/100 looper letters, 1 selfloop transitions, 5 changer transitions 0/13 dead transitions. [2021-03-25 05:06:16,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 13 transitions, 64 flow [2021-03-25 05:06:16,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:06:16,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:06:16,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2021-03-25 05:06:16,153 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8075 [2021-03-25 05:06:16,153 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 323 transitions. [2021-03-25 05:06:16,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 323 transitions. [2021-03-25 05:06:16,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:16,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 323 transitions. [2021-03-25 05:06:16,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 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) [2021-03-25 05:06:16,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2021-03-25 05:06:16,155 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 100.0) internal successors, (500), 5 states have internal predecessors, (500), 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) [2021-03-25 05:06:16,155 INFO L185 Difference]: Start difference. First operand has 21 places, 13 transitions, 52 flow. Second operand 4 states and 323 transitions. [2021-03-25 05:06:16,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 13 transitions, 64 flow [2021-03-25 05:06:16,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 13 transitions, 57 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 05:06:16,155 INFO L241 Difference]: Finished difference. Result has 23 places, 13 transitions, 61 flow [2021-03-25 05:06:16,156 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=61, PETRI_PLACES=23, PETRI_TRANSITIONS=13} [2021-03-25 05:06:16,156 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, 1 predicate places. [2021-03-25 05:06:16,156 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:16,156 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 13 transitions, 61 flow [2021-03-25 05:06:16,156 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 13 transitions, 61 flow [2021-03-25 05:06:16,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 23 places, 13 transitions, 61 flow [2021-03-25 05:06:16,158 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-03-25 05:06:16,158 INFO L130 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2021-03-25 05:06:16,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 15 events. 1/15 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 1/15 useless extension candidates. Maximal degree in co-relation 29. Up to 6 conditions per place. [2021-03-25 05:06:16,159 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-25 05:06:16,296 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:06:16,296 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 05:06:16,296 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 140 [2021-03-25 05:06:16,296 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 11 transitions, 58 flow [2021-03-25 05:06:16,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2021-03-25 05:06:16,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 05:06:16,297 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 05:06:16,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 05:06:16,297 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 05:06:16,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 05:06:16,297 INFO L82 PathProgramCache]: Analyzing trace with hash 119192873, now seen corresponding path program 1 times [2021-03-25 05:06:16,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 05:06:16,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178597381] [2021-03-25 05:06:16,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 05:06:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 05:06:16,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 05:06:16,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 05:06:16,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 05:06:16,317 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-03-25 05:06:16,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 05:06:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 05:06:16,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178597381] [2021-03-25 05:06:16,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 05:06:16,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 05:06:16,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166066810] [2021-03-25 05:06:16,322 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 05:06:16,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 05:06:16,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 05:06:16,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 05:06:16,323 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 104 [2021-03-25 05:06:16,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 11 transitions, 58 flow. Second operand has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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) [2021-03-25 05:06:16,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 05:06:16,324 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 104 [2021-03-25 05:06:16,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 05:06:16,337 INFO L129 PetriNetUnfolder]: 1/11 cut-off events. [2021-03-25 05:06:16,337 INFO L130 PetriNetUnfolder]: For 23/35 co-relation queries the response was YES. [2021-03-25 05:06:16,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 11 events. 1/11 cut-off events. For 23/35 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 9 event pairs, 0 based on Foata normal form. 5/15 useless extension candidates. Maximal degree in co-relation 28. Up to 5 conditions per place. [2021-03-25 05:06:16,337 INFO L132 encePairwiseOnDemand]: 100/104 looper letters, 0 selfloop transitions, 0 changer transitions 10/10 dead transitions. [2021-03-25 05:06:16,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 10 transitions, 62 flow [2021-03-25 05:06:16,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 05:06:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 05:06:16,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 302 transitions. [2021-03-25 05:06:16,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7259615384615384 [2021-03-25 05:06:16,338 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 302 transitions. [2021-03-25 05:06:16,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 302 transitions. [2021-03-25 05:06:16,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 05:06:16,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 302 transitions. [2021-03-25 05:06:16,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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) [2021-03-25 05:06:16,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2021-03-25 05:06:16,340 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 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) [2021-03-25 05:06:16,340 INFO L185 Difference]: Start difference. First operand has 21 places, 11 transitions, 58 flow. Second operand 4 states and 302 transitions. [2021-03-25 05:06:16,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 10 transitions, 62 flow [2021-03-25 05:06:16,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 10 transitions, 45 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 05:06:16,340 INFO L241 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2021-03-25 05:06:16,341 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2021-03-25 05:06:16,341 INFO L343 CegarLoopForPetriNet]: 22 programPoint places, -3 predicate places. [2021-03-25 05:06:16,341 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 05:06:16,341 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 19 places, 0 transitions, 0 flow [2021-03-25 05:06:16,341 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 19 places, 0 transitions, 0 flow [2021-03-25 05:06:16,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 05:06:16,341 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 05:06:16,341 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 05:06:16,341 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. [2021-03-25 05:06:16,341 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 05:06:16,341 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 05:06:16,341 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 05:06:16,342 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 05:06:16,342 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 05:06:16,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 75.25) internal successors, (301), 4 states have internal predecessors, (301), 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) [2021-03-25 05:06:16,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 05:06:16,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:06:16 BasicIcfg [2021-03-25 05:06:16,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 05:06:16,345 INFO L168 Benchmark]: Toolchain (without parser) took 2929.60 ms. Allocated memory was 320.9 MB in the beginning and 385.9 MB in the end (delta: 65.0 MB). Free memory was 283.0 MB in the beginning and 256.6 MB in the end (delta: 26.4 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.0 GB. [2021-03-25 05:06:16,346 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 320.9 MB. Free memory was 301.5 MB in the beginning and 301.5 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:06:16,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.96 ms. Allocated memory is still 320.9 MB. Free memory was 282.8 MB in the beginning and 285.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. [2021-03-25 05:06:16,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.27 ms. Allocated memory is still 320.9 MB. Free memory was 285.4 MB in the beginning and 283.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:06:16,346 INFO L168 Benchmark]: Boogie Preprocessor took 26.38 ms. Allocated memory is still 320.9 MB. Free memory was 283.3 MB in the beginning and 282.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 05:06:16,347 INFO L168 Benchmark]: RCFGBuilder took 364.39 ms. Allocated memory is still 320.9 MB. Free memory was 282.2 MB in the beginning and 260.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-03-25 05:06:16,347 INFO L168 Benchmark]: TraceAbstraction took 2172.24 ms. Allocated memory was 320.9 MB in the beginning and 385.9 MB in the end (delta: 65.0 MB). Free memory was 260.2 MB in the beginning and 256.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.0 GB. [2021-03-25 05:06:16,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 320.9 MB. Free memory was 301.5 MB in the beginning and 301.5 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 317.96 ms. Allocated memory is still 320.9 MB. Free memory was 282.8 MB in the beginning and 285.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.27 ms. Allocated memory is still 320.9 MB. Free memory was 285.4 MB in the beginning and 283.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 26.38 ms. Allocated memory is still 320.9 MB. Free memory was 283.3 MB in the beginning and 282.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 364.39 ms. Allocated memory is still 320.9 MB. Free memory was 282.2 MB in the beginning and 260.2 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2172.24 ms. Allocated memory was 320.9 MB in the beginning and 385.9 MB in the end (delta: 65.0 MB). Free memory was 260.2 MB in the beginning and 256.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 70.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 839.5ms, 55 PlacesBefore, 22 PlacesAfterwards, 49 TransitionsBefore, 15 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 34 TotalNumberOfCompositions, 608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 445, positive: 413, positive conditional: 0, positive unconditional: 413, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 233, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 233, positive: 221, positive conditional: 0, positive unconditional: 221, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 445, positive: 192, positive conditional: 0, positive unconditional: 192, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 233, unknown conditional: 0, unknown unconditional: 233] , Statistics on independence cache: Total cache size (in pairs): 23, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 497.6ms, 23 PlacesBefore, 20 PlacesAfterwards, 15 TransitionsBefore, 12 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 51, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 6, unknown conditional: 0, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6ms, 24 PlacesBefore, 24 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 43 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , Cache Queries: [ total: 8, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 22, Positive cache size: 17, Positive conditional cache size: 0, Positive unconditional cache size: 17, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.1ms, 29 PlacesBefore, 27 PlacesAfterwards, 12 TransitionsBefore, 11 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 6, Positive conditional cache size: 0, Positive unconditional cache size: 6, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.3ms, 21 PlacesBefore, 21 PlacesAfterwards, 13 TransitionsBefore, 13 TransitionsAfterwards, 22 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 14, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 2, Positive conditional cache size: 0, Positive unconditional cache size: 2, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 139.6ms, 23 PlacesBefore, 21 PlacesAfterwards, 13 TransitionsBefore, 11 TransitionsAfterwards, 8 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 19 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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] , 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): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2077.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 132.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 891.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 9 SDslu, 6 SDs, 0 SdLazy, 36 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=2, InterpolantAutomatonStates: 23, 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: 8.7ms SsaConstructionTime, 67.2ms SatisfiabilityAnalysisTime, 167.9ms InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...