/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:00:19,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:00:19,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:00:19,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:00:19,051 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:00:19,054 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:00:19,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:00:19,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:00:19,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:00:19,069 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:00:19,070 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:00:19,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:00:19,072 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:00:19,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:00:19,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:00:19,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:00:19,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:00:19,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:00:19,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:00:19,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:00:19,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:00:19,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:00:19,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:00:19,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:00:19,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 16:00:19,106 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:00:19,107 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:00:19,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:00:19,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:00:19,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:00:19,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:00:19,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:00:19,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:00:19,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:00:19,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:00:19,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:00:19,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 16:00:19,156 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:00:19,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:00:19,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:00:19,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:00:19,160 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:00:19,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:00:19,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:00:19,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:00:19,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:00:19,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:00:19,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:00:19,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:00:19,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:00:19,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:00:19,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:00:19,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:00:19,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:00:19,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:00:19,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:00:19,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:00:19,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:00:19,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:00:19,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:00:19,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:00:19,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:00:19,587 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:00:19,588 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2021-06-11 16:00:19,679 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b781c1a6d/596e360b4a4c4329ae1aa6639d4aaa52/FLAG68c19e70d [2021-06-11 16:00:20,149 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:00:20,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2021-06-11 16:00:20,161 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b781c1a6d/596e360b4a4c4329ae1aa6639d4aaa52/FLAG68c19e70d [2021-06-11 16:00:20,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b781c1a6d/596e360b4a4c4329ae1aa6639d4aaa52 [2021-06-11 16:00:20,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:00:20,495 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:00:20,497 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:00:20,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:00:20,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:00:20,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:00:20" (1/1) ... [2021-06-11 16:00:20,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bc7419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:20, skipping insertion in model container [2021-06-11 16:00:20,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:00:20" (1/1) ... [2021-06-11 16:00:20,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:00:20,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:00:20,746 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/safe002_tso.oepc.i[950,963] [2021-06-11 16:00:20,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:00:20,929 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:00:20,940 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/safe002_tso.oepc.i[950,963] [2021-06-11 16:00:20,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:00:21,050 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:00:21,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21 WrapperNode [2021-06-11 16:00:21,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:00:21,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:00:21,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:00:21,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:00:21,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:00:21,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:00:21,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:00:21,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:00:21,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (1/1) ... [2021-06-11 16:00:21,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:00:21,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:00:21,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:00:21,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:00:21,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (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 [2021-06-11 16:00:21,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:00:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:00:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:00:21,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:00:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:00:21,241 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:00:21,241 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:00:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:00:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:00:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:00:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:00:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:00:21,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:00:21,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:00:21,244 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 16:00:21,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:00:21,686 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:00:21,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:00:21 BoogieIcfgContainer [2021-06-11 16:00:21,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:00:21,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:00:21,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:00:21,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:00:21,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:00:20" (1/3) ... [2021-06-11 16:00:21,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d091001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:00:21, skipping insertion in model container [2021-06-11 16:00:21,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:00:21" (2/3) ... [2021-06-11 16:00:21,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d091001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:00:21, skipping insertion in model container [2021-06-11 16:00:21,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:00:21" (3/3) ... [2021-06-11 16:00:21,696 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2021-06-11 16:00:21,704 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:00:21,709 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:00:21,709 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:00:21,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,750 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,750 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,750 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,751 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,751 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,752 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,753 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,753 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,754 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,755 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,756 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,757 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,757 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,758 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,761 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,762 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,765 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,765 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,765 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,770 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,770 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,771 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,771 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,777 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,777 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:00:21,780 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:00:21,798 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:00:21,829 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:00:21,830 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:00:21,830 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:00:21,830 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:00:21,830 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:00:21,830 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:00:21,830 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:00:21,830 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:00:21,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 16:00:21,890 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-06-11 16:00:21,891 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:00:21,902 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 16:00:21,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 16:00:21,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-06-11 16:00:21,911 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:21,929 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 16:00:21,933 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 16:00:21,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-06-11 16:00:21,961 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-06-11 16:00:21,961 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:00:21,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 16:00:21,965 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 16:00:22,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,192 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:22,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:22,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,334 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:22,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:22,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:22,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,586 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:22,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:22,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:22,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,790 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:22,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:22,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:22,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:22,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:22,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,370 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:23,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:23,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:23,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,593 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:23,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 16:00:23,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:00:23,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:23,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,725 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 16:00:23,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:23,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:24,035 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-06-11 16:00:24,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,093 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:24,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:24,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:24,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:24,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,266 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:24,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:24,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:24,461 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 16:00:24,663 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 16:00:24,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:00:24,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:24,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:00:24,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:00:24,767 INFO L163 LiptonReduction]: Checked pairs total: 1712 [2021-06-11 16:00:24,768 INFO L165 LiptonReduction]: Total number of compositions: 44 [2021-06-11 16:00:24,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2860 [2021-06-11 16:00:24,778 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-11 16:00:24,778 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:00:24,778 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:24,779 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:24,779 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:24,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1507554977, now seen corresponding path program 1 times [2021-06-11 16:00:24,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:24,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704959486] [2021-06-11 16:00:24,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:24,947 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:24,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:24,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704959486] [2021-06-11 16:00:24,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:24,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:00:24,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132274060] [2021-06-11 16:00:24,987 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:00:24,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:00:25,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:00:25,006 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2021-06-11 16:00:25,010 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-06-11 16:00:25,010 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,010 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2021-06-11 16:00:25,011 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,060 INFO L129 PetriNetUnfolder]: 47/133 cut-off events. [2021-06-11 16:00:25,060 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:00:25,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 133 events. 47/133 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 613 event pairs, 19 based on Foata normal form. 11/139 useless extension candidates. Maximal degree in co-relation 231. Up to 63 conditions per place. [2021-06-11 16:00:25,064 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 6 selfloop transitions, 6 changer transitions 0/22 dead transitions. [2021-06-11 16:00:25,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 77 flow [2021-06-11 16:00:25,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:00:25,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:00:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2021-06-11 16:00:25,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7927170868347339 [2021-06-11 16:00:25,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2021-06-11 16:00:25,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2021-06-11 16:00:25,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2021-06-11 16:00:25,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2021-06-11 16:00:25,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-06-11 16:00:25,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2021-06-11 16:00:25,102 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 283 transitions. [2021-06-11 16:00:25,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 77 flow [2021-06-11 16:00:25,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 74 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:00:25,105 INFO L241 Difference]: Finished difference. Result has 28 places, 22 transitions, 86 flow [2021-06-11 16:00:25,107 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2021-06-11 16:00:25,107 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 16:00:25,108 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,108 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 22 transitions, 86 flow [2021-06-11 16:00:25,108 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 22 transitions, 86 flow [2021-06-11 16:00:25,109 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 22 transitions, 86 flow [2021-06-11 16:00:25,120 INFO L129 PetriNetUnfolder]: 47/134 cut-off events. [2021-06-11 16:00:25,120 INFO L130 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2021-06-11 16:00:25,121 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 134 events. 47/134 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 626 event pairs, 13 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 278. Up to 63 conditions per place. [2021-06-11 16:00:25,122 INFO L151 LiptonReduction]: Number of co-enabled transitions 144 [2021-06-11 16:00:25,124 INFO L163 LiptonReduction]: Checked pairs total: 42 [2021-06-11 16:00:25,125 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,125 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 17 [2021-06-11 16:00:25,126 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 86 flow [2021-06-11 16:00:25,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2021-06-11 16:00:25,126 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:00:25,127 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,127 INFO L82 PathProgramCache]: Analyzing trace with hash 510435415, now seen corresponding path program 1 times [2021-06-11 16:00:25,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905995420] [2021-06-11 16:00:25,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,197 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:25,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905995420] [2021-06-11 16:00:25,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:00:25,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809284814] [2021-06-11 16:00:25,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:25,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:25,209 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2021-06-11 16:00:25,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2021-06-11 16:00:25,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2021-06-11 16:00:25,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,238 INFO L129 PetriNetUnfolder]: 33/103 cut-off events. [2021-06-11 16:00:25,238 INFO L130 PetriNetUnfolder]: For 33/69 co-relation queries the response was YES. [2021-06-11 16:00:25,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 103 events. 33/103 cut-off events. For 33/69 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 418 event pairs, 0 based on Foata normal form. 5/106 useless extension candidates. Maximal degree in co-relation 289. Up to 51 conditions per place. [2021-06-11 16:00:25,239 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 10 selfloop transitions, 10 changer transitions 0/30 dead transitions. [2021-06-11 16:00:25,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 30 transitions, 168 flow [2021-06-11 16:00:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:00:25,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:00:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 377 transitions. [2021-06-11 16:00:25,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.792016806722689 [2021-06-11 16:00:25,241 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 377 transitions. [2021-06-11 16:00:25,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 377 transitions. [2021-06-11 16:00:25,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 377 transitions. [2021-06-11 16:00:25,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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) [2021-06-11 16:00:25,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,244 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,245 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 86 flow. Second operand 4 states and 377 transitions. [2021-06-11 16:00:25,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 30 transitions, 168 flow [2021-06-11 16:00:25,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:00:25,247 INFO L241 Difference]: Finished difference. Result has 32 places, 28 transitions, 148 flow [2021-06-11 16:00:25,247 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2021-06-11 16:00:25,247 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 16:00:25,248 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,248 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 28 transitions, 148 flow [2021-06-11 16:00:25,248 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 28 transitions, 148 flow [2021-06-11 16:00:25,248 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 28 transitions, 148 flow [2021-06-11 16:00:25,256 INFO L129 PetriNetUnfolder]: 33/104 cut-off events. [2021-06-11 16:00:25,256 INFO L130 PetriNetUnfolder]: For 72/80 co-relation queries the response was YES. [2021-06-11 16:00:25,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 104 events. 33/104 cut-off events. For 72/80 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 428 event pairs, 11 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 273. Up to 51 conditions per place. [2021-06-11 16:00:25,258 INFO L151 LiptonReduction]: Number of co-enabled transitions 168 [2021-06-11 16:00:25,260 INFO L163 LiptonReduction]: Checked pairs total: 62 [2021-06-11 16:00:25,260 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,261 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:00:25,261 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 148 flow [2021-06-11 16:00:25,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 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) [2021-06-11 16:00:25,262 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,262 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:00:25,262 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1356991966, now seen corresponding path program 1 times [2021-06-11 16:00:25,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633948367] [2021-06-11 16:00:25,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633948367] [2021-06-11 16:00:25,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:00:25,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405858413] [2021-06-11 16:00:25,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:25,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:25,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:25,310 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 119 [2021-06-11 16:00:25,311 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2021-06-11 16:00:25,311 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,311 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 119 [2021-06-11 16:00:25,311 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,340 INFO L129 PetriNetUnfolder]: 27/97 cut-off events. [2021-06-11 16:00:25,340 INFO L130 PetriNetUnfolder]: For 112/146 co-relation queries the response was YES. [2021-06-11 16:00:25,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 97 events. 27/97 cut-off events. For 112/146 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 410 event pairs, 4 based on Foata normal form. 12/107 useless extension candidates. Maximal degree in co-relation 296. Up to 48 conditions per place. [2021-06-11 16:00:25,341 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 7 selfloop transitions, 5 changer transitions 9/33 dead transitions. [2021-06-11 16:00:25,341 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 218 flow [2021-06-11 16:00:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:00:25,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:00:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 393 transitions. [2021-06-11 16:00:25,343 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8256302521008403 [2021-06-11 16:00:25,343 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 393 transitions. [2021-06-11 16:00:25,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 393 transitions. [2021-06-11 16:00:25,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 393 transitions. [2021-06-11 16:00:25,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 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) [2021-06-11 16:00:25,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,346 INFO L185 Difference]: Start difference. First operand has 32 places, 28 transitions, 148 flow. Second operand 4 states and 393 transitions. [2021-06-11 16:00:25,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 218 flow [2021-06-11 16:00:25,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 218 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:00:25,348 INFO L241 Difference]: Finished difference. Result has 36 places, 23 transitions, 128 flow [2021-06-11 16:00:25,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=128, PETRI_PLACES=36, PETRI_TRANSITIONS=23} [2021-06-11 16:00:25,349 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2021-06-11 16:00:25,349 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,349 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 23 transitions, 128 flow [2021-06-11 16:00:25,349 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 23 transitions, 128 flow [2021-06-11 16:00:25,350 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 23 transitions, 128 flow [2021-06-11 16:00:25,354 INFO L129 PetriNetUnfolder]: 13/52 cut-off events. [2021-06-11 16:00:25,354 INFO L130 PetriNetUnfolder]: For 71/76 co-relation queries the response was YES. [2021-06-11 16:00:25,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 52 events. 13/52 cut-off events. For 71/76 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 149 event pairs, 5 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 139. Up to 26 conditions per place. [2021-06-11 16:00:25,355 INFO L151 LiptonReduction]: Number of co-enabled transitions 126 [2021-06-11 16:00:25,357 INFO L163 LiptonReduction]: Checked pairs total: 27 [2021-06-11 16:00:25,357 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,357 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-06-11 16:00:25,358 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 23 transitions, 128 flow [2021-06-11 16:00:25,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 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) [2021-06-11 16:00:25,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,359 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:00:25,359 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash -2100171749, now seen corresponding path program 1 times [2021-06-11 16:00:25,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,360 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222351680] [2021-06-11 16:00:25,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,427 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:25,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222351680] [2021-06-11 16:00:25,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:00:25,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696299310] [2021-06-11 16:00:25,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:25,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:25,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:25,439 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2021-06-11 16:00:25,440 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 23 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-06-11 16:00:25,440 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,440 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2021-06-11 16:00:25,440 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,470 INFO L129 PetriNetUnfolder]: 12/48 cut-off events. [2021-06-11 16:00:25,470 INFO L130 PetriNetUnfolder]: For 96/126 co-relation queries the response was YES. [2021-06-11 16:00:25,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 48 events. 12/48 cut-off events. For 96/126 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 130 event pairs, 2 based on Foata normal form. 7/54 useless extension candidates. Maximal degree in co-relation 162. Up to 24 conditions per place. [2021-06-11 16:00:25,471 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 7 selfloop transitions, 8 changer transitions 0/25 dead transitions. [2021-06-11 16:00:25,471 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 25 transitions, 173 flow [2021-06-11 16:00:25,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:00:25,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:00:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-06-11 16:00:25,473 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7857142857142857 [2021-06-11 16:00:25,473 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-06-11 16:00:25,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-06-11 16:00:25,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-06-11 16:00:25,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:00:25,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,476 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,476 INFO L185 Difference]: Start difference. First operand has 36 places, 23 transitions, 128 flow. Second operand 4 states and 374 transitions. [2021-06-11 16:00:25,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 25 transitions, 173 flow [2021-06-11 16:00:25,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 25 transitions, 157 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 16:00:25,479 INFO L241 Difference]: Finished difference. Result has 37 places, 24 transitions, 149 flow [2021-06-11 16:00:25,479 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=149, PETRI_PLACES=37, PETRI_TRANSITIONS=24} [2021-06-11 16:00:25,479 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2021-06-11 16:00:25,480 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,480 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 24 transitions, 149 flow [2021-06-11 16:00:25,480 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 24 transitions, 149 flow [2021-06-11 16:00:25,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 24 transitions, 149 flow [2021-06-11 16:00:25,485 INFO L129 PetriNetUnfolder]: 12/48 cut-off events. [2021-06-11 16:00:25,485 INFO L130 PetriNetUnfolder]: For 68/77 co-relation queries the response was YES. [2021-06-11 16:00:25,485 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 48 events. 12/48 cut-off events. For 68/77 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 130 event pairs, 2 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 149. Up to 24 conditions per place. [2021-06-11 16:00:25,486 INFO L151 LiptonReduction]: Number of co-enabled transitions 130 [2021-06-11 16:00:25,488 INFO L163 LiptonReduction]: Checked pairs total: 28 [2021-06-11 16:00:25,488 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 16:00:25,495 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 24 transitions, 149 flow [2021-06-11 16:00:25,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-06-11 16:00:25,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:00:25,496 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,497 INFO L82 PathProgramCache]: Analyzing trace with hash -628844931, now seen corresponding path program 1 times [2021-06-11 16:00:25,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551099440] [2021-06-11 16:00:25,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:25,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,571 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:25,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551099440] [2021-06-11 16:00:25,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:00:25,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276018511] [2021-06-11 16:00:25,583 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:25,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:25,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:25,584 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2021-06-11 16:00:25,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 24 transitions, 149 flow. Second operand has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-06-11 16:00:25,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2021-06-11 16:00:25,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,613 INFO L129 PetriNetUnfolder]: 9/43 cut-off events. [2021-06-11 16:00:25,613 INFO L130 PetriNetUnfolder]: For 93/122 co-relation queries the response was YES. [2021-06-11 16:00:25,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 43 events. 9/43 cut-off events. For 93/122 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 110 event pairs, 2 based on Foata normal form. 9/51 useless extension candidates. Maximal degree in co-relation 157. Up to 19 conditions per place. [2021-06-11 16:00:25,614 INFO L132 encePairwiseOnDemand]: 114/119 looper letters, 8 selfloop transitions, 7 changer transitions 0/25 dead transitions. [2021-06-11 16:00:25,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 183 flow [2021-06-11 16:00:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:00:25,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:00:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2021-06-11 16:00:25,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2021-06-11 16:00:25,616 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 372 transitions. [2021-06-11 16:00:25,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 372 transitions. [2021-06-11 16:00:25,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 372 transitions. [2021-06-11 16:00:25,617 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 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) [2021-06-11 16:00:25,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,618 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 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) [2021-06-11 16:00:25,619 INFO L185 Difference]: Start difference. First operand has 37 places, 24 transitions, 149 flow. Second operand 4 states and 372 transitions. [2021-06-11 16:00:25,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 183 flow [2021-06-11 16:00:25,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 25 transitions, 177 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-06-11 16:00:25,622 INFO L241 Difference]: Finished difference. Result has 40 places, 24 transitions, 164 flow [2021-06-11 16:00:25,622 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2021-06-11 16:00:25,622 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2021-06-11 16:00:25,622 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,623 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 24 transitions, 164 flow [2021-06-11 16:00:25,623 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 24 transitions, 164 flow [2021-06-11 16:00:25,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 24 transitions, 164 flow [2021-06-11 16:00:25,627 INFO L129 PetriNetUnfolder]: 9/42 cut-off events. [2021-06-11 16:00:25,628 INFO L130 PetriNetUnfolder]: For 98/107 co-relation queries the response was YES. [2021-06-11 16:00:25,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 42 events. 9/42 cut-off events. For 98/107 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 101 event pairs, 1 based on Foata normal form. 1/42 useless extension candidates. Maximal degree in co-relation 144. Up to 19 conditions per place. [2021-06-11 16:00:25,628 INFO L151 LiptonReduction]: Number of co-enabled transitions 130 [2021-06-11 16:00:25,631 INFO L163 LiptonReduction]: Checked pairs total: 28 [2021-06-11 16:00:25,631 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-06-11 16:00:25,633 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 164 flow [2021-06-11 16:00:25,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 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) [2021-06-11 16:00:25,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,634 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:00:25,634 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1467926719, now seen corresponding path program 1 times [2021-06-11 16:00:25,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304607289] [2021-06-11 16:00:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,686 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:25,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304607289] [2021-06-11 16:00:25,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:00:25,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615597004] [2021-06-11 16:00:25,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:00:25,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:00:25,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:00:25,699 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 119 [2021-06-11 16:00:25,699 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 164 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2021-06-11 16:00:25,699 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 119 [2021-06-11 16:00:25,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,727 INFO L129 PetriNetUnfolder]: 9/53 cut-off events. [2021-06-11 16:00:25,728 INFO L130 PetriNetUnfolder]: For 155/184 co-relation queries the response was YES. [2021-06-11 16:00:25,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 53 events. 9/53 cut-off events. For 155/184 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 176 event pairs, 2 based on Foata normal form. 6/58 useless extension candidates. Maximal degree in co-relation 214. Up to 24 conditions per place. [2021-06-11 16:00:25,728 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 5 selfloop transitions, 7 changer transitions 8/30 dead transitions. [2021-06-11 16:00:25,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 254 flow [2021-06-11 16:00:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:00:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:00:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 465 transitions. [2021-06-11 16:00:25,730 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7815126050420168 [2021-06-11 16:00:25,730 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 465 transitions. [2021-06-11 16:00:25,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 465 transitions. [2021-06-11 16:00:25,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 465 transitions. [2021-06-11 16:00:25,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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) [2021-06-11 16:00:25,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2021-06-11 16:00:25,733 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2021-06-11 16:00:25,733 INFO L185 Difference]: Start difference. First operand has 40 places, 24 transitions, 164 flow. Second operand 5 states and 465 transitions. [2021-06-11 16:00:25,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 254 flow [2021-06-11 16:00:25,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 30 transitions, 226 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-06-11 16:00:25,735 INFO L241 Difference]: Finished difference. Result has 42 places, 22 transitions, 141 flow [2021-06-11 16:00:25,735 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=42, PETRI_TRANSITIONS=22} [2021-06-11 16:00:25,735 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 15 predicate places. [2021-06-11 16:00:25,735 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,735 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 22 transitions, 141 flow [2021-06-11 16:00:25,736 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 22 transitions, 141 flow [2021-06-11 16:00:25,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 22 transitions, 141 flow [2021-06-11 16:00:25,739 INFO L129 PetriNetUnfolder]: 6/33 cut-off events. [2021-06-11 16:00:25,739 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-06-11 16:00:25,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 33 events. 6/33 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 58 event pairs, 2 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 109. Up to 16 conditions per place. [2021-06-11 16:00:25,740 INFO L151 LiptonReduction]: Number of co-enabled transitions 92 [2021-06-11 16:00:25,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:25,769 INFO L163 LiptonReduction]: Checked pairs total: 30 [2021-06-11 16:00:25,769 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 16:00:25,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-06-11 16:00:25,770 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 21 transitions, 139 flow [2021-06-11 16:00:25,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2021-06-11 16:00:25,771 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,771 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,771 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:00:25,771 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1980596689, now seen corresponding path program 2 times [2021-06-11 16:00:25,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333510065] [2021-06-11 16:00:25,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:25,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,802 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:00:25,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:00:25,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333510065] [2021-06-11 16:00:25,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:00:25,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013174478] [2021-06-11 16:00:25,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:00:25,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:00:25,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:00:25,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 120 [2021-06-11 16:00:25,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 21 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2021-06-11 16:00:25,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 120 [2021-06-11 16:00:25,815 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,840 INFO L129 PetriNetUnfolder]: 5/34 cut-off events. [2021-06-11 16:00:25,841 INFO L130 PetriNetUnfolder]: For 83/95 co-relation queries the response was YES. [2021-06-11 16:00:25,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 34 events. 5/34 cut-off events. For 83/95 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 1 based on Foata normal form. 9/43 useless extension candidates. Maximal degree in co-relation 131. Up to 17 conditions per place. [2021-06-11 16:00:25,841 INFO L132 encePairwiseOnDemand]: 115/120 looper letters, 4 selfloop transitions, 3 changer transitions 7/23 dead transitions. [2021-06-11 16:00:25,841 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 23 transitions, 175 flow [2021-06-11 16:00:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 16:00:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 16:00:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 553 transitions. [2021-06-11 16:00:25,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7680555555555556 [2021-06-11 16:00:25,843 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 553 transitions. [2021-06-11 16:00:25,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 553 transitions. [2021-06-11 16:00:25,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 553 transitions. [2021-06-11 16:00:25,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.16666666666667) internal successors, (553), 6 states have internal predecessors, (553), 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) [2021-06-11 16:00:25,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-06-11 16:00:25,846 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 120.0) internal successors, (840), 7 states have internal predecessors, (840), 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) [2021-06-11 16:00:25,846 INFO L185 Difference]: Start difference. First operand has 41 places, 21 transitions, 139 flow. Second operand 6 states and 553 transitions. [2021-06-11 16:00:25,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 23 transitions, 175 flow [2021-06-11 16:00:25,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 23 transitions, 140 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-06-11 16:00:25,847 INFO L241 Difference]: Finished difference. Result has 38 places, 16 transitions, 74 flow [2021-06-11 16:00:25,848 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=74, PETRI_PLACES=38, PETRI_TRANSITIONS=16} [2021-06-11 16:00:25,848 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-11 16:00:25,848 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 16 transitions, 74 flow [2021-06-11 16:00:25,848 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 16 transitions, 74 flow [2021-06-11 16:00:25,849 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 16 transitions, 74 flow [2021-06-11 16:00:25,851 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-06-11 16:00:25,851 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-06-11 16:00:25,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 18 events. 1/18 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 1 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 42. Up to 7 conditions per place. [2021-06-11 16:00:25,851 INFO L151 LiptonReduction]: Number of co-enabled transitions 48 [2021-06-11 16:00:25,852 INFO L163 LiptonReduction]: Checked pairs total: 18 [2021-06-11 16:00:25,852 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:25,852 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4 [2021-06-11 16:00:25,853 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 16 transitions, 74 flow [2021-06-11 16:00:25,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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) [2021-06-11 16:00:25,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:25,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:25,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:00:25,854 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:25,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:25,854 INFO L82 PathProgramCache]: Analyzing trace with hash 533677516, now seen corresponding path program 1 times [2021-06-11 16:00:25,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:25,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017327403] [2021-06-11 16:00:25,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:25,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:25,879 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:25,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:00:25,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:25,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017327403] [2021-06-11 16:00:25,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:25,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:00:25,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963704078] [2021-06-11 16:00:25,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:25,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:25,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:25,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:25,891 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-06-11 16:00:25,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 16 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 16:00:25,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:25,892 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-06-11 16:00:25,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:25,918 INFO L129 PetriNetUnfolder]: 32/75 cut-off events. [2021-06-11 16:00:25,919 INFO L130 PetriNetUnfolder]: For 218/253 co-relation queries the response was YES. [2021-06-11 16:00:25,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 75 events. 32/75 cut-off events. For 218/253 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 231 event pairs, 16 based on Foata normal form. 12/79 useless extension candidates. Maximal degree in co-relation 194. Up to 49 conditions per place. [2021-06-11 16:00:25,919 INFO L132 encePairwiseOnDemand]: 114/120 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2021-06-11 16:00:25,919 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 26 transitions, 126 flow [2021-06-11 16:00:25,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:00:25,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:00:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 478 transitions. [2021-06-11 16:00:25,921 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7966666666666666 [2021-06-11 16:00:25,921 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 478 transitions. [2021-06-11 16:00:25,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 478 transitions. [2021-06-11 16:00:25,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:25,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 478 transitions. [2021-06-11 16:00:25,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 95.6) internal successors, (478), 5 states have internal predecessors, (478), 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) [2021-06-11 16:00:25,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2021-06-11 16:00:25,924 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 120.0) internal successors, (720), 6 states have internal predecessors, (720), 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) [2021-06-11 16:00:25,924 INFO L185 Difference]: Start difference. First operand has 35 places, 16 transitions, 74 flow. Second operand 5 states and 478 transitions. [2021-06-11 16:00:25,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 26 transitions, 126 flow [2021-06-11 16:00:25,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 104 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-06-11 16:00:25,925 INFO L241 Difference]: Finished difference. Result has 33 places, 19 transitions, 88 flow [2021-06-11 16:00:25,925 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=33, PETRI_TRANSITIONS=19} [2021-06-11 16:00:25,925 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2021-06-11 16:00:25,925 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:25,926 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 19 transitions, 88 flow [2021-06-11 16:00:25,926 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 19 transitions, 88 flow [2021-06-11 16:00:25,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 19 transitions, 88 flow [2021-06-11 16:00:25,931 INFO L129 PetriNetUnfolder]: 26/61 cut-off events. [2021-06-11 16:00:25,931 INFO L130 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2021-06-11 16:00:25,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 61 events. 26/61 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 167 event pairs, 14 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 179. Up to 38 conditions per place. [2021-06-11 16:00:25,931 INFO L151 LiptonReduction]: Number of co-enabled transitions 36 [2021-06-11 16:00:25,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:25,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:26,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:26,030 INFO L163 LiptonReduction]: Checked pairs total: 8 [2021-06-11 16:00:26,030 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 16:00:26,030 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-06-11 16:00:26,031 INFO L480 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 88 flow [2021-06-11 16:00:26,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2021-06-11 16:00:26,031 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:26,031 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:26,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:00:26,032 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:26,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:26,032 INFO L82 PathProgramCache]: Analyzing trace with hash 620944389, now seen corresponding path program 1 times [2021-06-11 16:00:26,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:26,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591271171] [2021-06-11 16:00:26,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:26,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:00:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:26,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591271171] [2021-06-11 16:00:26,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:26,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:00:26,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304604672] [2021-06-11 16:00:26,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:00:26,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:26,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:00:26,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:00:26,072 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2021-06-11 16:00:26,073 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 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) [2021-06-11 16:00:26,073 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:26,073 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2021-06-11 16:00:26,073 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:26,115 INFO L129 PetriNetUnfolder]: 17/53 cut-off events. [2021-06-11 16:00:26,116 INFO L130 PetriNetUnfolder]: For 153/194 co-relation queries the response was YES. [2021-06-11 16:00:26,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 53 events. 17/53 cut-off events. For 153/194 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 138 event pairs, 3 based on Foata normal form. 19/70 useless extension candidates. Maximal degree in co-relation 188. Up to 35 conditions per place. [2021-06-11 16:00:26,116 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 5 selfloop transitions, 7 changer transitions 7/28 dead transitions. [2021-06-11 16:00:26,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 28 transitions, 184 flow [2021-06-11 16:00:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 16:00:26,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 16:00:26,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 579 transitions. [2021-06-11 16:00:26,118 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7909836065573771 [2021-06-11 16:00:26,118 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 579 transitions. [2021-06-11 16:00:26,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 579 transitions. [2021-06-11 16:00:26,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:26,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 579 transitions. [2021-06-11 16:00:26,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 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) [2021-06-11 16:00:26,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-06-11 16:00:26,121 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 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) [2021-06-11 16:00:26,121 INFO L185 Difference]: Start difference. First operand has 30 places, 18 transitions, 88 flow. Second operand 6 states and 579 transitions. [2021-06-11 16:00:26,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 28 transitions, 184 flow [2021-06-11 16:00:26,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 28 transitions, 178 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 16:00:26,123 INFO L241 Difference]: Finished difference. Result has 36 places, 21 transitions, 138 flow [2021-06-11 16:00:26,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=28, 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=138, PETRI_PLACES=36, PETRI_TRANSITIONS=21} [2021-06-11 16:00:26,123 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2021-06-11 16:00:26,123 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:26,123 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 21 transitions, 138 flow [2021-06-11 16:00:26,124 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 21 transitions, 138 flow [2021-06-11 16:00:26,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 21 transitions, 138 flow [2021-06-11 16:00:26,127 INFO L129 PetriNetUnfolder]: 12/41 cut-off events. [2021-06-11 16:00:26,128 INFO L130 PetriNetUnfolder]: For 108/121 co-relation queries the response was YES. [2021-06-11 16:00:26,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 41 events. 12/41 cut-off events. For 108/121 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 82 event pairs, 3 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 155. Up to 23 conditions per place. [2021-06-11 16:00:26,128 INFO L151 LiptonReduction]: Number of co-enabled transitions 24 [2021-06-11 16:00:26,129 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:00:26,129 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:26,130 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 16:00:26,130 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 138 flow [2021-06-11 16:00:26,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 93.8) internal successors, (469), 5 states have internal predecessors, (469), 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) [2021-06-11 16:00:26,130 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:26,131 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:26,131 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:00:26,131 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash -250871466, now seen corresponding path program 1 times [2021-06-11 16:00:26,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:26,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369298294] [2021-06-11 16:00:26,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:26,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 16:00:26,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:26,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369298294] [2021-06-11 16:00:26,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:26,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:00:26,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943887154] [2021-06-11 16:00:26,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:00:26,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:26,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:00:26,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:00:26,174 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 122 [2021-06-11 16:00:26,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 138 flow. Second operand has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2021-06-11 16:00:26,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:26,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 122 [2021-06-11 16:00:26,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:26,218 INFO L129 PetriNetUnfolder]: 7/33 cut-off events. [2021-06-11 16:00:26,218 INFO L130 PetriNetUnfolder]: For 122/135 co-relation queries the response was YES. [2021-06-11 16:00:26,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 33 events. 7/33 cut-off events. For 122/135 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 12/44 useless extension candidates. Maximal degree in co-relation 134. Up to 20 conditions per place. [2021-06-11 16:00:26,218 INFO L132 encePairwiseOnDemand]: 115/122 looper letters, 2 selfloop transitions, 10 changer transitions 4/25 dead transitions. [2021-06-11 16:00:26,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 25 transitions, 206 flow [2021-06-11 16:00:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:00:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:00:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 669 transitions. [2021-06-11 16:00:26,221 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7833723653395784 [2021-06-11 16:00:26,221 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 669 transitions. [2021-06-11 16:00:26,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 669 transitions. [2021-06-11 16:00:26,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:26,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 669 transitions. [2021-06-11 16:00:26,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.57142857142857) internal successors, (669), 7 states have internal predecessors, (669), 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) [2021-06-11 16:00:26,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 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) [2021-06-11 16:00:26,224 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 122.0) internal successors, (976), 8 states have internal predecessors, (976), 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) [2021-06-11 16:00:26,224 INFO L185 Difference]: Start difference. First operand has 34 places, 21 transitions, 138 flow. Second operand 7 states and 669 transitions. [2021-06-11 16:00:26,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 25 transitions, 206 flow [2021-06-11 16:00:26,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 168 flow, removed 15 selfloop flow, removed 4 redundant places. [2021-06-11 16:00:26,226 INFO L241 Difference]: Finished difference. Result has 39 places, 21 transitions, 138 flow [2021-06-11 16:00:26,226 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=30, 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=138, PETRI_PLACES=39, PETRI_TRANSITIONS=21} [2021-06-11 16:00:26,226 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2021-06-11 16:00:26,226 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:26,226 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 21 transitions, 138 flow [2021-06-11 16:00:26,227 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 21 transitions, 138 flow [2021-06-11 16:00:26,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 21 transitions, 138 flow [2021-06-11 16:00:26,229 INFO L129 PetriNetUnfolder]: 5/27 cut-off events. [2021-06-11 16:00:26,230 INFO L130 PetriNetUnfolder]: For 44/45 co-relation queries the response was YES. [2021-06-11 16:00:26,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 27 events. 5/27 cut-off events. For 44/45 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 1/27 useless extension candidates. Maximal degree in co-relation 83. Up to 11 conditions per place. [2021-06-11 16:00:26,230 INFO L151 LiptonReduction]: Number of co-enabled transitions 20 [2021-06-11 16:00:26,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:26,312 INFO L163 LiptonReduction]: Checked pairs total: 9 [2021-06-11 16:00:26,312 INFO L165 LiptonReduction]: Total number of compositions: 3 [2021-06-11 16:00:26,312 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 86 [2021-06-11 16:00:26,313 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 20 transitions, 136 flow [2021-06-11 16:00:26,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 93.83333333333333) internal successors, (563), 6 states have internal predecessors, (563), 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) [2021-06-11 16:00:26,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:00:26,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:00:26,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 16:00:26,314 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:00:26,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:00:26,314 INFO L82 PathProgramCache]: Analyzing trace with hash -238667346, now seen corresponding path program 1 times [2021-06-11 16:00:26,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:00:26,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468183860] [2021-06-11 16:00:26,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:00:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:00:26,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:00:26,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:00:26,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:00:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:00:26,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468183860] [2021-06-11 16:00:26,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:00:26,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:00:26,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6063357] [2021-06-11 16:00:26,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:00:26,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:00:26,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:00:26,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:00:26,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 125 [2021-06-11 16:00:26,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 20 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2021-06-11 16:00:26,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:00:26,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 125 [2021-06-11 16:00:26,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:00:26,360 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-06-11 16:00:26,361 INFO L130 PetriNetUnfolder]: For 58/59 co-relation queries the response was YES. [2021-06-11 16:00:26,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 24 events. 5/24 cut-off events. For 58/59 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 31 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 87. Up to 11 conditions per place. [2021-06-11 16:00:26,361 INFO L132 encePairwiseOnDemand]: 119/125 looper letters, 0 selfloop transitions, 0 changer transitions 19/19 dead transitions. [2021-06-11 16:00:26,361 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 19 transitions, 136 flow [2021-06-11 16:00:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:00:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:00:26,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2021-06-11 16:00:26,363 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.806 [2021-06-11 16:00:26,363 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 403 transitions. [2021-06-11 16:00:26,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 403 transitions. [2021-06-11 16:00:26,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:00:26,363 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 403 transitions. [2021-06-11 16:00:26,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 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) [2021-06-11 16:00:26,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2021-06-11 16:00:26,365 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 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) [2021-06-11 16:00:26,365 INFO L185 Difference]: Start difference. First operand has 36 places, 20 transitions, 136 flow. Second operand 4 states and 403 transitions. [2021-06-11 16:00:26,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 19 transitions, 136 flow [2021-06-11 16:00:26,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 19 transitions, 102 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-06-11 16:00:26,367 INFO L241 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2021-06-11 16:00:26,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2021-06-11 16:00:26,367 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 6 predicate places. [2021-06-11 16:00:26,367 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:00:26,367 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 0 transitions, 0 flow [2021-06-11 16:00:26,367 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 0 transitions, 0 flow [2021-06-11 16:00:26,367 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:00:26,368 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:00:26,368 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:00:26,368 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. [2021-06-11 16:00:26,368 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:00:26,368 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:00:26,368 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:00:26,368 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:00:26,371 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:00:26,371 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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) [2021-06-11 16:00:26,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 16:00:26,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:00:26 BasicIcfg [2021-06-11 16:00:26,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:00:26,376 INFO L168 Benchmark]: Toolchain (without parser) took 5880.66 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 336.4 MB in the beginning and 335.4 MB in the end (delta: 952.2 kB). Peak memory consumption was 77.6 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,377 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 373.3 MB. Free memory was 354.5 MB in the beginning and 354.4 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:00:26,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.25 ms. Allocated memory is still 373.3 MB. Free memory was 336.1 MB in the beginning and 335.2 MB in the end (delta: 950.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.06 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 333.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,378 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 ms. Allocated memory is still 373.3 MB. Free memory was 333.1 MB in the beginning and 332.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,378 INFO L168 Benchmark]: RCFGBuilder took 529.93 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 307.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,378 INFO L168 Benchmark]: TraceAbstraction took 4684.26 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 307.9 MB in the beginning and 335.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. [2021-06-11 16:00:26,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 373.3 MB. Free memory was 354.5 MB in the beginning and 354.4 MB in the end (delta: 71.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 555.25 ms. Allocated memory is still 373.3 MB. Free memory was 336.1 MB in the beginning and 335.2 MB in the end (delta: 950.3 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.06 ms. Allocated memory is still 373.3 MB. Free memory was 335.2 MB in the beginning and 333.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.03 ms. Allocated memory is still 373.3 MB. Free memory was 333.1 MB in the beginning and 332.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 529.93 ms. Allocated memory is still 373.3 MB. Free memory was 332.0 MB in the beginning and 307.9 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4684.26 ms. Allocated memory was 373.3 MB in the beginning and 448.8 MB in the end (delta: 75.5 MB). Free memory was 307.9 MB in the beginning and 335.4 MB in the end (delta: -27.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2834.6ms, 69 PlacesBefore, 27 PlacesAfterwards, 60 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 44 TotalNumberOfCompositions, 1712 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 850, positive: 766, positive conditional: 766, positive unconditional: 0, negative: 84, negative conditional: 84, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 850, positive: 766, positive conditional: 0, positive unconditional: 766, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 850, positive: 766, positive conditional: 0, positive unconditional: 766, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 616, positive: 580, positive conditional: 0, positive unconditional: 580, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 616, positive: 572, positive conditional: 0, positive unconditional: 572, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 850, positive: 186, positive conditional: 0, positive unconditional: 186, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 616, unknown conditional: 0, unknown unconditional: 616] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 28 PlacesBefore, 28 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 42 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4ms, 32 PlacesBefore, 32 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 62 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, 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): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5ms, 36 PlacesBefore, 36 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 27 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 37 PlacesBefore, 37 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4ms, 40 PlacesBefore, 40 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.8ms, 42 PlacesBefore, 41 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 92 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 30 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8ms, 38 PlacesBefore, 35 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 616, Positive cache size: 580, Positive conditional cache size: 0, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.4ms, 33 PlacesBefore, 30 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 8 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 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: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 618, Positive cache size: 582, Positive conditional cache size: 2, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.8ms, 36 PlacesBefore, 34 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 618, Positive cache size: 582, Positive conditional cache size: 2, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 85.7ms, 39 PlacesBefore, 36 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 20 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 9 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , 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: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 619, Positive cache size: 583, Positive conditional cache size: 3, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 33 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 619, Positive cache size: 583, Positive conditional cache size: 3, Positive unconditional cache size: 580, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4547.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 503.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2944.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 57 SDtfs, 40 SDslu, 28 SDs, 0 SdLazy, 169 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 142.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 176.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=164occurred in iteration=5, InterpolantAutomatonStates: 52, 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: 19.9ms SsaConstructionTime, 151.8ms SatisfiabilityAnalysisTime, 450.9ms InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...