/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 14:53:08,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 14:53:08,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 14:53:08,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 14:53:08,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 14:53:08,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 14:53:08,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 14:53:08,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 14:53:08,599 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 14:53:08,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 14:53:08,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 14:53:08,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 14:53:08,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 14:53:08,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 14:53:08,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 14:53:08,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 14:53:08,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 14:53:08,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 14:53:08,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 14:53:08,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 14:53:08,623 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 14:53:08,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 14:53:08,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 14:53:08,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 14:53:08,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 14:53:08,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 14:53:08,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 14:53:08,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 14:53:08,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 14:53:08,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 14:53:08,636 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 14:53:08,637 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 14:53:08,638 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 14:53:08,638 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 14:53:08,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 14:53:08,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 14:53:08,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 14:53:08,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 14:53:08,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 14:53:08,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 14:53:08,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 14:53:08,642 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-RepeatedSemanticLbe.epf [2021-03-25 14:53:08,676 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 14:53:08,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 14:53:08,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 14:53:08,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 14:53:08,679 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 14:53:08,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 14:53:08,679 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 14:53:08,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 14:53:08,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 14:53:08,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 14:53:08,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 14:53:08,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 14:53:08,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 14:53:08,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 14:53:08,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 14:53:08,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 14:53:08,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 14:53:08,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 14:53:08,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 14:53:08,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 14:53:08,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 14:53:08,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 14:53:08,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 14:53:08,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 14:53:08,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 14:53:08,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 14:53:09,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 14:53:09,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 14:53:09,023 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-25 14:53:09,023 INFO L275 PluginConnector]: CDTParser initialized [2021-03-25 14:53:09,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-03-25 14:53:09,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283b845d8/7bcdba35290f4396960effbe189a5620/FLAG149669a11 [2021-03-25 14:53:09,594 INFO L306 CDTParser]: Found 1 translation units. [2021-03-25 14:53:09,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_tso.oepc.i [2021-03-25 14:53:09,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283b845d8/7bcdba35290f4396960effbe189a5620/FLAG149669a11 [2021-03-25 14:53:09,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/283b845d8/7bcdba35290f4396960effbe189a5620 [2021-03-25 14:53:09,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 14:53:09,907 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-25 14:53:09,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-25 14:53:09,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-25 14:53:09,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-25 14:53:09,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:53:09" (1/1) ... [2021-03-25 14:53:09,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31966a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:09, skipping insertion in model container [2021-03-25 14:53:09,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 02:53:09" (1/1) ... [2021-03-25 14:53:09,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-25 14:53:09,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-25 14:53:10,099 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/safe012_tso.oepc.i[950,963] [2021-03-25 14:53:10,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:53:10,280 INFO L203 MainTranslator]: Completed pre-run [2021-03-25 14:53:10,292 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/safe012_tso.oepc.i[950,963] [2021-03-25 14:53:10,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-25 14:53:10,375 INFO L208 MainTranslator]: Completed translation [2021-03-25 14:53:10,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10 WrapperNode [2021-03-25 14:53:10,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-25 14:53:10,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 14:53:10,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 14:53:10,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 14:53:10,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 14:53:10,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 14:53:10,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 14:53:10,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 14:53:10,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (1/1) ... [2021-03-25 14:53:10,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 14:53:10,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 14:53:10,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 14:53:10,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 14:53:10,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (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 14:53:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-25 14:53:10,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-25 14:53:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-25 14:53:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-25 14:53:10,511 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-25 14:53:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-25 14:53:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-25 14:53:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-25 14:53:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-25 14:53:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-25 14:53:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-25 14:53:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-25 14:53:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 14:53:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 14:53:10,514 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 14:53:10,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 14:53:10,837 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-25 14:53:10,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:53:10 BoogieIcfgContainer [2021-03-25 14:53:10,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 14:53:10,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 14:53:10,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 14:53:10,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 14:53:10,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 02:53:09" (1/3) ... [2021-03-25 14:53:10,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c47554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:53:10, skipping insertion in model container [2021-03-25 14:53:10,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 02:53:10" (2/3) ... [2021-03-25 14:53:10,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c47554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 02:53:10, skipping insertion in model container [2021-03-25 14:53:10,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 02:53:10" (3/3) ... [2021-03-25 14:53:10,845 INFO L111 eAbstractionObserver]: Analyzing ICFG safe012_tso.oepc.i [2021-03-25 14:53:10,849 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 14:53:10,854 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 14:53:10,855 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 14:53:10,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,891 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,892 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,893 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,894 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,894 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,895 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,897 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,897 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,898 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,898 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,900 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,901 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,901 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,902 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,902 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,913 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,913 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,915 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,916 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,916 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 14:53:10,917 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-25 14:53:10,934 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-25 14:53:10,961 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 14:53:10,961 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 14:53:10,961 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 14:53:10,961 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 14:53:10,962 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 14:53:10,962 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 14:53:10,962 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 14:53:10,962 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 14:53:10,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-03-25 14:53:11,029 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-03-25 14:53:11,029 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:11,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-25 14:53:11,035 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-03-25 14:53:11,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-03-25 14:53:11,048 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:11,064 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-25 14:53:11,067 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-03-25 14:53:11,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-03-25 14:53:11,093 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-03-25 14:53:11,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:11,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-25 14:53:11,096 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-25 14:53:12,716 INFO L154 LiptonReduction]: Checked pairs total: 942 [2021-03-25 14:53:12,717 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-25 14:53:12,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1672 [2021-03-25 14:53:12,727 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-25 14:53:12,727 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:12,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:12,728 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:12,728 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:12,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1196691833, now seen corresponding path program 1 times [2021-03-25 14:53:12,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:12,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339678830] [2021-03-25 14:53:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:13,014 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 14:53:13,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:53:13,027 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 14:53:13,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339678830] [2021-03-25 14:53:13,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:13,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-25 14:53:13,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008527904] [2021-03-25 14:53:13,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 14:53:13,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:13,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 14:53:13,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 14:53:13,052 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 116 [2021-03-25 14:53:13,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 14:53:13,057 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:13,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 116 [2021-03-25 14:53:13,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:13,081 INFO L129 PetriNetUnfolder]: 7/42 cut-off events. [2021-03-25 14:53:13,082 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:13,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 42 events. 7/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 83 event pairs, 5 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 59. Up to 18 conditions per place. [2021-03-25 14:53:13,089 INFO L132 encePairwiseOnDemand]: 112/116 looper letters, 4 selfloop transitions, 3 changer transitions 0/23 dead transitions. [2021-03-25 14:53:13,089 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 69 flow [2021-03-25 14:53:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:53:13,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:53:13,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2021-03-25 14:53:13,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8505747126436781 [2021-03-25 14:53:13,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2021-03-25 14:53:13,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2021-03-25 14:53:13,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:13,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2021-03-25 14:53:13,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:13,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 14:53:13,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 14:53:13,127 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 3 states and 296 transitions. [2021-03-25 14:53:13,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 69 flow [2021-03-25 14:53:13,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 66 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-25 14:53:13,131 INFO L241 Difference]: Finished difference. Result has 31 places, 23 transitions, 67 flow [2021-03-25 14:53:13,133 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=31, PETRI_TRANSITIONS=23} [2021-03-25 14:53:13,133 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-25 14:53:13,133 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:13,133 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-25 14:53:13,134 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 23 transitions, 67 flow [2021-03-25 14:53:13,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 23 transitions, 67 flow [2021-03-25 14:53:13,142 INFO L129 PetriNetUnfolder]: 3/31 cut-off events. [2021-03-25 14:53:13,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:13,143 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 31 events. 3/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 42. Up to 10 conditions per place. [2021-03-25 14:53:13,144 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-25 14:53:13,725 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 14:53:13,979 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-03-25 14:53:14,065 INFO L154 LiptonReduction]: Checked pairs total: 433 [2021-03-25 14:53:14,065 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-25 14:53:14,065 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 932 [2021-03-25 14:53:14,066 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 59 flow [2021-03-25 14:53:14,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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 14:53:14,066 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,067 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 14:53:14,067 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1557259489, now seen corresponding path program 1 times [2021-03-25 14:53:14,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325393657] [2021-03-25 14:53:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,129 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 14:53:14,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:53:14,139 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 14:53:14,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325393657] [2021-03-25 14:53:14,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:53:14,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482409584] [2021-03-25 14:53:14,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:53:14,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:53:14,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:53:14,143 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-03-25 14:53:14,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 14:53:14,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-03-25 14:53:14,144 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,170 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-25 14:53:14,170 INFO L130 PetriNetUnfolder]: For 7/15 co-relation queries the response was YES. [2021-03-25 14:53:14,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 29 events. 4/29 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 54. Up to 11 conditions per place. [2021-03-25 14:53:14,171 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 5 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2021-03-25 14:53:14,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 77 flow [2021-03-25 14:53:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:53:14,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:53:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2021-03-25 14:53:14,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8305555555555556 [2021-03-25 14:53:14,173 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2021-03-25 14:53:14,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2021-03-25 14:53:14,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2021-03-25 14:53:14,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 14:53:14,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 14:53:14,177 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 14:53:14,178 INFO L185 Difference]: Start difference. First operand has 27 places, 19 transitions, 59 flow. Second operand 3 states and 299 transitions. [2021-03-25 14:53:14,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 77 flow [2021-03-25 14:53:14,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 74 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 14:53:14,179 INFO L241 Difference]: Finished difference. Result has 29 places, 19 transitions, 67 flow [2021-03-25 14:53:14,179 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=29, PETRI_TRANSITIONS=19} [2021-03-25 14:53:14,180 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2021-03-25 14:53:14,180 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,180 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 67 flow [2021-03-25 14:53:14,181 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 67 flow [2021-03-25 14:53:14,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 67 flow [2021-03-25 14:53:14,188 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-25 14:53:14,188 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-25 14:53:14,189 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 23 events. 2/23 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 38. Up to 8 conditions per place. [2021-03-25 14:53:14,190 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-25 14:53:14,191 INFO L154 LiptonReduction]: Checked pairs total: 120 [2021-03-25 14:53:14,191 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:53:14,191 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-25 14:53:14,192 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 19 transitions, 67 flow [2021-03-25 14:53:14,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 14:53:14,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,193 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 14:53:14,194 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,194 INFO L82 PathProgramCache]: Analyzing trace with hash -2066713749, now seen corresponding path program 1 times [2021-03-25 14:53:14,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459631296] [2021-03-25 14:53:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,282 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 14:53:14,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:53:14,290 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 14:53:14,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459631296] [2021-03-25 14:53:14,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:53:14,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49291743] [2021-03-25 14:53:14,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:53:14,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:53:14,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:53:14,293 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2021-03-25 14:53:14,294 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 19 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 14:53:14,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2021-03-25 14:53:14,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,309 INFO L129 PetriNetUnfolder]: 3/26 cut-off events. [2021-03-25 14:53:14,311 INFO L130 PetriNetUnfolder]: For 21/31 co-relation queries the response was YES. [2021-03-25 14:53:14,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 26 events. 3/26 cut-off events. For 21/31 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 2 based on Foata normal form. 4/29 useless extension candidates. Maximal degree in co-relation 53. Up to 10 conditions per place. [2021-03-25 14:53:14,312 INFO L132 encePairwiseOnDemand]: 117/120 looper letters, 4 selfloop transitions, 3 changer transitions 0/19 dead transitions. [2021-03-25 14:53:14,312 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 19 transitions, 81 flow [2021-03-25 14:53:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 14:53:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 14:53:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2021-03-25 14:53:14,314 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8277777777777777 [2021-03-25 14:53:14,314 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 298 transitions. [2021-03-25 14:53:14,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 298 transitions. [2021-03-25 14:53:14,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 298 transitions. [2021-03-25 14:53:14,317 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 14:53:14,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 14:53:14,318 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 120.0) internal successors, (480), 4 states have internal predecessors, (480), 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 14:53:14,318 INFO L185 Difference]: Start difference. First operand has 29 places, 19 transitions, 67 flow. Second operand 3 states and 298 transitions. [2021-03-25 14:53:14,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 19 transitions, 81 flow [2021-03-25 14:53:14,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 19 transitions, 75 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:53:14,320 INFO L241 Difference]: Finished difference. Result has 30 places, 19 transitions, 72 flow [2021-03-25 14:53:14,320 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2021-03-25 14:53:14,320 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-25 14:53:14,320 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,320 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 19 transitions, 72 flow [2021-03-25 14:53:14,321 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 19 transitions, 72 flow [2021-03-25 14:53:14,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 30 places, 19 transitions, 72 flow [2021-03-25 14:53:14,323 INFO L129 PetriNetUnfolder]: 1/21 cut-off events. [2021-03-25 14:53:14,324 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-25 14:53:14,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 21 events. 1/21 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 36. Up to 6 conditions per place. [2021-03-25 14:53:14,324 INFO L142 LiptonReduction]: Number of co-enabled transitions 136 [2021-03-25 14:53:14,325 INFO L154 LiptonReduction]: Checked pairs total: 127 [2021-03-25 14:53:14,326 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:53:14,326 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-25 14:53:14,330 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 72 flow [2021-03-25 14:53:14,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 14:53:14,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 14:53:14,331 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,332 INFO L82 PathProgramCache]: Analyzing trace with hash 355430193, now seen corresponding path program 1 times [2021-03-25 14:53:14,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342618132] [2021-03-25 14:53:14,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,385 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-03-25 14:53:14,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 14:53:14,393 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 14:53:14,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342618132] [2021-03-25 14:53:14,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:53:14,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158428784] [2021-03-25 14:53:14,394 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:53:14,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:53:14,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:53:14,396 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-03-25 14:53:14,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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 14:53:14,397 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,397 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-03-25 14:53:14,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,422 INFO L129 PetriNetUnfolder]: 4/32 cut-off events. [2021-03-25 14:53:14,422 INFO L130 PetriNetUnfolder]: For 43/54 co-relation queries the response was YES. [2021-03-25 14:53:14,422 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 32 events. 4/32 cut-off events. For 43/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 2 based on Foata normal form. 5/36 useless extension candidates. Maximal degree in co-relation 71. Up to 9 conditions per place. [2021-03-25 14:53:14,423 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 3 selfloop transitions, 3 changer transitions 5/22 dead transitions. [2021-03-25 14:53:14,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 22 transitions, 105 flow [2021-03-25 14:53:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:53:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:53:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2021-03-25 14:53:14,424 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7895833333333333 [2021-03-25 14:53:14,425 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 379 transitions. [2021-03-25 14:53:14,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 379 transitions. [2021-03-25 14:53:14,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 379 transitions. [2021-03-25 14:53:14,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.75) internal successors, (379), 4 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 14:53:14,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 14:53:14,428 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 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 14:53:14,428 INFO L185 Difference]: Start difference. First operand has 30 places, 19 transitions, 72 flow. Second operand 4 states and 379 transitions. [2021-03-25 14:53:14,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 22 transitions, 105 flow [2021-03-25 14:53:14,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 22 transitions, 97 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-25 14:53:14,429 INFO L241 Difference]: Finished difference. Result has 33 places, 17 transitions, 70 flow [2021-03-25 14:53:14,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=33, PETRI_TRANSITIONS=17} [2021-03-25 14:53:14,430 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2021-03-25 14:53:14,430 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,430 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 17 transitions, 70 flow [2021-03-25 14:53:14,430 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 17 transitions, 70 flow [2021-03-25 14:53:14,431 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 17 transitions, 70 flow [2021-03-25 14:53:14,433 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-03-25 14:53:14,433 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-03-25 14:53:14,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 17 events. 0/17 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-25 14:53:14,433 INFO L142 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-25 14:53:14,466 INFO L154 LiptonReduction]: Checked pairs total: 153 [2021-03-25 14:53:14,466 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:53:14,466 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 14:53:14,467 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 16 transitions, 68 flow [2021-03-25 14:53:14,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 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 14:53:14,467 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,467 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,467 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 14:53:14,468 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1863617273, now seen corresponding path program 1 times [2021-03-25 14:53:14,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890545004] [2021-03-25 14:53:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,519 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 14:53:14,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890545004] [2021-03-25 14:53:14,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:53:14,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735244932] [2021-03-25 14:53:14,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:53:14,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:53:14,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:53:14,524 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 121 [2021-03-25 14:53:14,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 16 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:14,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 121 [2021-03-25 14:53:14,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,541 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-25 14:53:14,541 INFO L130 PetriNetUnfolder]: For 39/40 co-relation queries the response was YES. [2021-03-25 14:53:14,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 23 events. 0/23 cut-off events. For 39/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-03-25 14:53:14,541 INFO L132 encePairwiseOnDemand]: 117/121 looper letters, 1 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2021-03-25 14:53:14,541 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 17 transitions, 87 flow [2021-03-25 14:53:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:53:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:53:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 399 transitions. [2021-03-25 14:53:14,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8243801652892562 [2021-03-25 14:53:14,543 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 399 transitions. [2021-03-25 14:53:14,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 399 transitions. [2021-03-25 14:53:14,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 399 transitions. [2021-03-25 14:53:14,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 99.75) internal successors, (399), 4 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:14,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 14:53:14,546 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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 14:53:14,546 INFO L185 Difference]: Start difference. First operand has 32 places, 16 transitions, 68 flow. Second operand 4 states and 399 transitions. [2021-03-25 14:53:14,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 17 transitions, 87 flow [2021-03-25 14:53:14,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 17 transitions, 55 flow, removed 5 selfloop flow, removed 8 redundant places. [2021-03-25 14:53:14,547 INFO L241 Difference]: Finished difference. Result has 29 places, 16 transitions, 56 flow [2021-03-25 14:53:14,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=42, 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=56, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2021-03-25 14:53:14,547 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -2 predicate places. [2021-03-25 14:53:14,548 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,548 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 16 transitions, 56 flow [2021-03-25 14:53:14,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 16 transitions, 56 flow [2021-03-25 14:53:14,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 16 transitions, 56 flow [2021-03-25 14:53:14,550 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-25 14:53:14,550 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-25 14:53:14,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 16 events. 0/16 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-25 14:53:14,551 INFO L142 LiptonReduction]: Number of co-enabled transitions 52 [2021-03-25 14:53:14,575 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-25 14:53:14,575 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:53:14,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 14:53:14,576 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 54 flow [2021-03-25 14:53:14,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:14,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 14:53:14,577 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1671440059, now seen corresponding path program 1 times [2021-03-25 14:53:14,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767602971] [2021-03-25 14:53:14,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,608 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 14:53:14,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 14:53:14,613 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 14:53:14,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767602971] [2021-03-25 14:53:14,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-25 14:53:14,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009870181] [2021-03-25 14:53:14,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:53:14,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:53:14,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:53:14,616 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 122 [2021-03-25 14:53:14,616 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 14:53:14,616 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,616 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 122 [2021-03-25 14:53:14,616 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,651 INFO L129 PetriNetUnfolder]: 28/67 cut-off events. [2021-03-25 14:53:14,651 INFO L130 PetriNetUnfolder]: For 85/91 co-relation queries the response was YES. [2021-03-25 14:53:14,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 67 events. 28/67 cut-off events. For 85/91 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 199 event pairs, 12 based on Foata normal form. 9/71 useless extension candidates. Maximal degree in co-relation 153. Up to 45 conditions per place. [2021-03-25 14:53:14,652 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 5 selfloop transitions, 4 changer transitions 7/25 dead transitions. [2021-03-25 14:53:14,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 25 transitions, 106 flow [2021-03-25 14:53:14,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-25 14:53:14,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-25 14:53:14,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 473 transitions. [2021-03-25 14:53:14,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7754098360655738 [2021-03-25 14:53:14,654 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 473 transitions. [2021-03-25 14:53:14,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 473 transitions. [2021-03-25 14:53:14,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 473 transitions. [2021-03-25 14:53:14,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 94.6) internal successors, (473), 5 states have internal predecessors, (473), 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 14:53:14,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 14:53:14,658 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 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 14:53:14,658 INFO L185 Difference]: Start difference. First operand has 28 places, 15 transitions, 54 flow. Second operand 5 states and 473 transitions. [2021-03-25 14:53:14,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 25 transitions, 106 flow [2021-03-25 14:53:14,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 25 transitions, 94 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-25 14:53:14,660 INFO L241 Difference]: Finished difference. Result has 31 places, 18 transitions, 78 flow [2021-03-25 14:53:14,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2021-03-25 14:53:14,660 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2021-03-25 14:53:14,661 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,661 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 18 transitions, 78 flow [2021-03-25 14:53:14,661 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 18 transitions, 78 flow [2021-03-25 14:53:14,661 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 78 flow [2021-03-25 14:53:14,672 INFO L129 PetriNetUnfolder]: 23/54 cut-off events. [2021-03-25 14:53:14,672 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-03-25 14:53:14,673 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 54 events. 23/54 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 147 event pairs, 11 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 147. Up to 38 conditions per place. [2021-03-25 14:53:14,675 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-25 14:53:14,718 INFO L154 LiptonReduction]: Checked pairs total: 27 [2021-03-25 14:53:14,718 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:53:14,718 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 57 [2021-03-25 14:53:14,720 INFO L480 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 79 flow [2021-03-25 14:53:14,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.75) internal successors, (367), 4 states have internal predecessors, (367), 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 14:53:14,720 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,720 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 14:53:14,720 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,721 INFO L82 PathProgramCache]: Analyzing trace with hash -183541462, now seen corresponding path program 1 times [2021-03-25 14:53:14,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641699906] [2021-03-25 14:53:14,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,770 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 14:53:14,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 14:53:14,780 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 14:53:14,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641699906] [2021-03-25 14:53:14,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:14,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:53:14,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175775039] [2021-03-25 14:53:14,781 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-25 14:53:14,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:14,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-25 14:53:14,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-25 14:53:14,782 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 123 [2021-03-25 14:53:14,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 18 transitions, 79 flow. Second operand has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 14:53:14,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:14,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 123 [2021-03-25 14:53:14,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:14,859 INFO L129 PetriNetUnfolder]: 16/51 cut-off events. [2021-03-25 14:53:14,859 INFO L130 PetriNetUnfolder]: For 78/120 co-relation queries the response was YES. [2021-03-25 14:53:14,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 51 events. 16/51 cut-off events. For 78/120 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 129 event pairs, 2 based on Foata normal form. 13/62 useless extension candidates. Maximal degree in co-relation 170. Up to 35 conditions per place. [2021-03-25 14:53:14,860 INFO L132 encePairwiseOnDemand]: 116/123 looper letters, 5 selfloop transitions, 7 changer transitions 7/28 dead transitions. [2021-03-25 14:53:14,860 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 28 transitions, 175 flow [2021-03-25 14:53:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-25 14:53:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-25 14:53:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2021-03-25 14:53:14,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7682926829268293 [2021-03-25 14:53:14,862 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2021-03-25 14:53:14,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2021-03-25 14:53:14,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:14,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2021-03-25 14:53:14,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 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 14:53:14,865 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 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 14:53:14,865 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 123.0) internal successors, (861), 7 states have internal predecessors, (861), 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 14:53:14,865 INFO L185 Difference]: Start difference. First operand has 29 places, 18 transitions, 79 flow. Second operand 6 states and 567 transitions. [2021-03-25 14:53:14,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 28 transitions, 175 flow [2021-03-25 14:53:14,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 28 transitions, 169 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-03-25 14:53:14,869 INFO L241 Difference]: Finished difference. Result has 35 places, 21 transitions, 129 flow [2021-03-25 14:53:14,869 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2021-03-25 14:53:14,869 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2021-03-25 14:53:14,869 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:14,869 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 21 transitions, 129 flow [2021-03-25 14:53:14,869 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 21 transitions, 129 flow [2021-03-25 14:53:14,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 33 places, 21 transitions, 129 flow [2021-03-25 14:53:14,875 INFO L129 PetriNetUnfolder]: 11/39 cut-off events. [2021-03-25 14:53:14,875 INFO L130 PetriNetUnfolder]: For 71/77 co-relation queries the response was YES. [2021-03-25 14:53:14,875 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 39 events. 11/39 cut-off events. For 71/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 2 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 137. Up to 23 conditions per place. [2021-03-25 14:53:14,876 INFO L142 LiptonReduction]: Number of co-enabled transitions 26 [2021-03-25 14:53:14,932 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-25 14:53:14,932 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-25 14:53:14,932 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-03-25 14:53:14,939 INFO L480 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 131 flow [2021-03-25 14:53:14,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 14:53:14,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:14,941 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:14,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 14:53:14,941 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:14,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1559903102, now seen corresponding path program 1 times [2021-03-25 14:53:14,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:14,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403824774] [2021-03-25 14:53:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:14,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:14,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:14,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:15,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:15,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:15,009 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-25 14:53:15,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-25 14:53:15,017 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 14:53:15,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403824774] [2021-03-25 14:53:15,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:15,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-25 14:53:15,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409211459] [2021-03-25 14:53:15,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-25 14:53:15,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:15,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-25 14:53:15,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-25 14:53:15,020 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 124 [2021-03-25 14:53:15,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 131 flow. Second operand has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 14:53:15,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:15,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 124 [2021-03-25 14:53:15,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:15,071 INFO L129 PetriNetUnfolder]: 7/35 cut-off events. [2021-03-25 14:53:15,071 INFO L130 PetriNetUnfolder]: For 92/102 co-relation queries the response was YES. [2021-03-25 14:53:15,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 35 events. 7/35 cut-off events. For 92/102 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 0 based on Foata normal form. 9/43 useless extension candidates. Maximal degree in co-relation 131. Up to 20 conditions per place. [2021-03-25 14:53:15,072 INFO L132 encePairwiseOnDemand]: 116/124 looper letters, 2 selfloop transitions, 10 changer transitions 4/25 dead transitions. [2021-03-25 14:53:15,072 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 25 transitions, 199 flow [2021-03-25 14:53:15,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-25 14:53:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-25 14:53:15,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 655 transitions. [2021-03-25 14:53:15,075 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7546082949308756 [2021-03-25 14:53:15,075 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 655 transitions. [2021-03-25 14:53:15,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 655 transitions. [2021-03-25 14:53:15,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:15,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 655 transitions. [2021-03-25 14:53:15,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.57142857142857) internal successors, (655), 7 states have internal predecessors, (655), 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 14:53:15,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:15,079 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 124.0) internal successors, (992), 8 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 14:53:15,079 INFO L185 Difference]: Start difference. First operand has 33 places, 21 transitions, 131 flow. Second operand 7 states and 655 transitions. [2021-03-25 14:53:15,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 25 transitions, 199 flow [2021-03-25 14:53:15,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 163 flow, removed 14 selfloop flow, removed 4 redundant places. [2021-03-25 14:53:15,082 INFO L241 Difference]: Finished difference. Result has 38 places, 21 transitions, 133 flow [2021-03-25 14:53:15,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=133, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2021-03-25 14:53:15,083 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 7 predicate places. [2021-03-25 14:53:15,083 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:15,083 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 21 transitions, 133 flow [2021-03-25 14:53:15,083 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 21 transitions, 133 flow [2021-03-25 14:53:15,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 21 transitions, 133 flow [2021-03-25 14:53:15,086 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-03-25 14:53:15,086 INFO L130 PetriNetUnfolder]: For 43/45 co-relation queries the response was YES. [2021-03-25 14:53:15,086 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 29 events. 5/29 cut-off events. For 43/45 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 39 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 82. Up to 11 conditions per place. [2021-03-25 14:53:15,087 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-25 14:53:15,224 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-25 14:53:15,224 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-25 14:53:15,224 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-03-25 14:53:15,225 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 130 flow [2021-03-25 14:53:15,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 91.83333333333333) internal successors, (551), 6 states have internal predecessors, (551), 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 14:53:15,225 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 14:53:15,225 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-25 14:53:15,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 14:53:15,226 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-25 14:53:15,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 14:53:15,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1314524424, now seen corresponding path program 1 times [2021-03-25 14:53:15,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 14:53:15,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451477503] [2021-03-25 14:53:15,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 14:53:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 14:53:15,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:15,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 14:53:15,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:15,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:15,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 14:53:15,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 14:53:15,272 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 14:53:15,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451477503] [2021-03-25 14:53:15,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 14:53:15,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 14:53:15,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632699353] [2021-03-25 14:53:15,273 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-25 14:53:15,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 14:53:15,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-25 14:53:15,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-25 14:53:15,274 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2021-03-25 14:53:15,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 14:53:15,275 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 14:53:15,275 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2021-03-25 14:53:15,275 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 14:53:15,291 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-25 14:53:15,291 INFO L130 PetriNetUnfolder]: For 58/60 co-relation queries the response was YES. [2021-03-25 14:53:15,291 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 24 events. 5/24 cut-off events. For 58/60 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 83. Up to 10 conditions per place. [2021-03-25 14:53:15,292 INFO L132 encePairwiseOnDemand]: 122/127 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2021-03-25 14:53:15,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 18 transitions, 124 flow [2021-03-25 14:53:15,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-25 14:53:15,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-25 14:53:15,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2021-03-25 14:53:15,293 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7992125984251969 [2021-03-25 14:53:15,293 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 406 transitions. [2021-03-25 14:53:15,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 406 transitions. [2021-03-25 14:53:15,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 14:53:15,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 406 transitions. [2021-03-25 14:53:15,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.5) internal successors, (406), 4 states have internal predecessors, (406), 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 14:53:15,296 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 14:53:15,296 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 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 14:53:15,296 INFO L185 Difference]: Start difference. First operand has 34 places, 19 transitions, 130 flow. Second operand 4 states and 406 transitions. [2021-03-25 14:53:15,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 18 transitions, 124 flow [2021-03-25 14:53:15,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 73 flow, removed 9 selfloop flow, removed 8 redundant places. [2021-03-25 14:53:15,297 INFO L241 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2021-03-25 14:53:15,298 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2021-03-25 14:53:15,298 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2021-03-25 14:53:15,298 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-25 14:53:15,298 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-25 14:53:15,298 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 0 transitions, 0 flow [2021-03-25 14:53:15,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 14:53:15,298 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 14:53:15,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 14:53:15,299 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 14:53:15,299 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 14:53:15,299 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 14:53:15,299 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 14:53:15,299 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-25 14:53:15,300 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-25 14:53:15,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 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 14:53:15,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 14:53:15,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 02:53:15 BasicIcfg [2021-03-25 14:53:15,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 14:53:15,304 INFO L168 Benchmark]: Toolchain (without parser) took 5396.40 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 304.2 MB in the beginning and 306.8 MB in the end (delta: -2.6 MB). Peak memory consumption was 66.8 MB. Max. memory is 16.0 GB. [2021-03-25 14:53:15,304 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.7 MB in the beginning and 322.6 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:53:15,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.44 ms. Allocated memory is still 341.8 MB. Free memory was 304.1 MB in the beginning and 304.5 MB in the end (delta: -453.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:53:15,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 302.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 14:53:15,305 INFO L168 Benchmark]: Boogie Preprocessor took 18.87 ms. Allocated memory is still 341.8 MB. Free memory was 302.4 MB in the beginning and 301.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 14:53:15,305 INFO L168 Benchmark]: RCFGBuilder took 387.45 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 277.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-25 14:53:15,306 INFO L168 Benchmark]: TraceAbstraction took 4463.35 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 276.2 MB in the beginning and 306.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.0 GB. [2021-03-25 14:53:15,307 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 341.8 MB. Free memory was 322.7 MB in the beginning and 322.6 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 467.44 ms. Allocated memory is still 341.8 MB. Free memory was 304.1 MB in the beginning and 304.5 MB in the end (delta: -453.7 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.48 ms. Allocated memory is still 341.8 MB. Free memory was 304.5 MB in the beginning and 302.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.87 ms. Allocated memory is still 341.8 MB. Free memory was 302.4 MB in the beginning and 301.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 387.45 ms. Allocated memory is still 341.8 MB. Free memory was 301.4 MB in the beginning and 277.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4463.35 ms. Allocated memory was 341.8 MB in the beginning and 411.0 MB in the end (delta: 69.2 MB). Free memory was 276.2 MB in the beginning and 306.8 MB in the end (delta: -30.6 MB). Peak memory consumption was 40.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1650.2ms, 70 PlacesBefore, 31 PlacesAfterwards, 61 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 942 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 628, positive: 594, positive conditional: 0, positive unconditional: 594, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 481, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 481, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 481, positive: 459, positive conditional: 0, positive unconditional: 459, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 82, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 628, positive: 129, positive conditional: 0, positive unconditional: 129, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 481, unknown conditional: 0, unknown unconditional: 481] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 931.0ms, 31 PlacesBefore, 27 PlacesAfterwards, 23 TransitionsBefore, 19 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 157, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 53, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 53, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 16, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 157, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 53, unknown conditional: 0, unknown unconditional: 53] , Statistics on independence cache: Total cache size (in pairs): 75, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5ms, 29 PlacesBefore, 29 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 120 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.9ms, 30 PlacesBefore, 30 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 127 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.5ms, 33 PlacesBefore, 32 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 56, positive conditional: 0, positive unconditional: 56, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.1ms, 29 PlacesBefore, 28 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.3ms, 31 PlacesBefore, 29 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.5ms, 35 PlacesBefore, 33 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 39, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.9ms, 38 PlacesBefore, 34 PlacesAfterwards, 21 TransitionsBefore, 19 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 28 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, 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 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4344.0ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 433.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1761.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 22 SDslu, 20 SDs, 0 SdLazy, 126 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 123.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 118.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=8, InterpolantAutomatonStates: 39, 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: 21.0ms SsaConstructionTime, 171.3ms SatisfiabilityAnalysisTime, 502.2ms InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...