/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/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:01:55,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:01:55,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:01:55,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:01:55,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:01:55,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:01:55,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:01:55,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:01:55,086 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:01:55,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:01:55,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:01:55,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:01:55,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:01:55,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:01:55,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:01:55,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:01:55,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:01:55,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:01:55,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:01:55,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:01:55,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:01:55,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:01:55,111 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:01:55,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:01:55,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-11 16:01:55,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:01:55,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:01:55,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:01:55,120 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:01:55,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:01:55,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:01:55,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:01:55,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:01:55,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:01:55,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:01:55,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:01:55,127 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 16:01:55,157 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:01:55,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:01:55,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:01:55,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:01:55,160 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:01:55,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:01:55,160 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:01:55,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:01:55,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:01:55,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:01:55,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:01:55,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:01:55,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:01:55,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:01:55,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:01:55,163 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:01:55,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:01:55,164 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:01:55,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:01:55,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:01:55,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:01:55,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:01:55,478 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:01:55,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2021-06-11 16:01:55,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ccc7fdbb/e9b42409a69b4a8dbab135ce16257358/FLAG426658706 [2021-06-11 16:01:56,101 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:01:56,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2021-06-11 16:01:56,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ccc7fdbb/e9b42409a69b4a8dbab135ce16257358/FLAG426658706 [2021-06-11 16:01:56,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ccc7fdbb/e9b42409a69b4a8dbab135ce16257358 [2021-06-11 16:01:56,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:01:56,392 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:01:56,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:01:56,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:01:56,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:01:56,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737ca86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56, skipping insertion in model container [2021-06-11 16:01:56,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:01:56,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:01:56,589 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/safe005_tso.oepc.i[950,963] [2021-06-11 16:01:56,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:01:56,723 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:01:56,733 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/safe005_tso.oepc.i[950,963] [2021-06-11 16:01:56,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:01:56,834 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:01:56,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56 WrapperNode [2021-06-11 16:01:56,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:01:56,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:01:56,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:01:56,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:01:56,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:01:56,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:01:56,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:01:56,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:01:56,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (1/1) ... [2021-06-11 16:01:56,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:01:56,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:01:56,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:01:56,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:01:56,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (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 16:01:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:01:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:01:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:01:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-11 16:01:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-11 16:01:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:01:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:01:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:01:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:01:56,994 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 16:01:57,382 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:01:57,382 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:01:57,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:01:57 BoogieIcfgContainer [2021-06-11 16:01:57,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:01:57,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:01:57,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:01:57,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:01:57,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:01:56" (1/3) ... [2021-06-11 16:01:57,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305b626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:01:57, skipping insertion in model container [2021-06-11 16:01:57,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:01:56" (2/3) ... [2021-06-11 16:01:57,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@305b626d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:01:57, skipping insertion in model container [2021-06-11 16:01:57,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:01:57" (3/3) ... [2021-06-11 16:01:57,391 INFO L111 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2021-06-11 16:01:57,396 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:01:57,400 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:01:57,401 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:01:57,431 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,431 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,432 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,433 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,434 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,434 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,435 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,436 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,438 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,438 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,439 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,439 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,440 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,442 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,443 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,443 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,444 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,449 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,449 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,455 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,455 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:01:57,459 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:01:57,477 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-11 16:01:57,505 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:01:57,505 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:01:57,506 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:01:57,506 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:01:57,506 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:01:57,506 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:01:57,506 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:01:57,506 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:01:57,520 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 16:01:57,565 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-06-11 16:01:57,566 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:01:57,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-06-11 16:01:57,571 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-06-11 16:01:57,585 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-06-11 16:01:57,587 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:01:57,599 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 16:01:57,603 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-06-11 16:01:57,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-06-11 16:01:57,629 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-06-11 16:01:57,629 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:01:57,630 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 16:01:57,633 INFO L151 LiptonReduction]: Number of co-enabled transitions 864 [2021-06-11 16:01:57,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,777 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:57,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:57,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:57,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,876 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:57,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:57,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:58,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:58,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:58,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,269 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:58,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:58,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:58,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,397 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:58,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:58,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:58,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,558 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:58,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:01:58,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:58,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,607 INFO L147 QuantifierPusher]: treesize reduction 29, result has 3.3 percent of original size 1 [2021-06-11 16:01:58,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,686 INFO L142 QuantifierPusher]: treesize reduction 9, result has 30.8 percent of original size [2021-06-11 16:01:58,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,770 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:58,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:58,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:58,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:58,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:58,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:59,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:59,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,294 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:59,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:59,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 16:01:59,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,363 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:01:59,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:01:59,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:01:59,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:01:59,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:01:59,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:01:59,895 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 16:02:00,096 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-06-11 16:02:00,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,161 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:02:00,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:02:00,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:02:00,171 INFO L163 LiptonReduction]: Checked pairs total: 1456 [2021-06-11 16:02:00,171 INFO L165 LiptonReduction]: Total number of compositions: 46 [2021-06-11 16:02:00,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2588 [2021-06-11 16:02:00,181 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2021-06-11 16:02:00,181 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:00,181 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:00,181 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:00,182 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:00,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:00,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1978511600, now seen corresponding path program 1 times [2021-06-11 16:02:00,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:00,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960289441] [2021-06-11 16:02:00,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:00,453 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:02:00,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:02:00,470 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 16:02:00,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960289441] [2021-06-11 16:02:00,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:00,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:02:00,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384539104] [2021-06-11 16:02:00,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:02:00,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:00,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:02:00,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:02:00,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 121 [2021-06-11 16:02:00,499 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 16:02:00,500 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:00,500 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 121 [2021-06-11 16:02:00,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:00,539 INFO L129 PetriNetUnfolder]: 46/130 cut-off events. [2021-06-11 16:02:00,539 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:00,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 130 events. 46/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 597 event pairs, 16 based on Foata normal form. 14/139 useless extension candidates. Maximal degree in co-relation 227. Up to 56 conditions per place. [2021-06-11 16:02:00,542 INFO L132 encePairwiseOnDemand]: 114/121 looper letters, 5 selfloop transitions, 6 changer transitions 0/21 dead transitions. [2021-06-11 16:02:00,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 73 flow [2021-06-11 16:02:00,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:02:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:02:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2021-06-11 16:02:00,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7768595041322314 [2021-06-11 16:02:00,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2021-06-11 16:02:00,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2021-06-11 16:02:00,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:00,555 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2021-06-11 16:02:00,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 16:02:00,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 16:02:00,564 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 121.0) internal successors, (484), 4 states have internal predecessors, (484), 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 16:02:00,566 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 43 flow. Second operand 3 states and 282 transitions. [2021-06-11 16:02:00,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 73 flow [2021-06-11 16:02:00,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 16:02:00,569 INFO L241 Difference]: Finished difference. Result has 28 places, 21 transitions, 82 flow [2021-06-11 16:02:00,570 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2021-06-11 16:02:00,571 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 1 predicate places. [2021-06-11 16:02:00,571 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:00,571 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 21 transitions, 82 flow [2021-06-11 16:02:00,572 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 21 transitions, 82 flow [2021-06-11 16:02:00,572 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 21 transitions, 82 flow [2021-06-11 16:02:00,585 INFO L129 PetriNetUnfolder]: 46/131 cut-off events. [2021-06-11 16:02:00,585 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-06-11 16:02:00,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 131 events. 46/131 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 600 event pairs, 16 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 272. Up to 56 conditions per place. [2021-06-11 16:02:00,587 INFO L151 LiptonReduction]: Number of co-enabled transitions 138 [2021-06-11 16:02:00,590 INFO L163 LiptonReduction]: Checked pairs total: 39 [2021-06-11 16:02:00,590 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:00,590 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-06-11 16:02:00,591 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 82 flow [2021-06-11 16:02:00,591 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 16:02:00,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:00,592 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:00,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:02:00,592 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:00,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1204316874, now seen corresponding path program 1 times [2021-06-11 16:02:00,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:00,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858935570] [2021-06-11 16:02:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:00,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:00,637 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:02:00,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:02:00,645 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 16:02:00,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858935570] [2021-06-11 16:02:00,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:00,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:00,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496724261] [2021-06-11 16:02:00,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:00,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:00,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:00,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:00,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 121 [2021-06-11 16:02:00,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 82 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 16:02:00,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:00,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 121 [2021-06-11 16:02:00,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:00,674 INFO L129 PetriNetUnfolder]: 34/104 cut-off events. [2021-06-11 16:02:00,675 INFO L130 PetriNetUnfolder]: For 37/73 co-relation queries the response was YES. [2021-06-11 16:02:00,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 104 events. 34/104 cut-off events. For 37/73 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 399 event pairs, 0 based on Foata normal form. 3/104 useless extension candidates. Maximal degree in co-relation 292. Up to 44 conditions per place. [2021-06-11 16:02:00,676 INFO L132 encePairwiseOnDemand]: 114/121 looper letters, 7 selfloop transitions, 7 changer transitions 2/26 dead transitions. [2021-06-11 16:02:00,676 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 140 flow [2021-06-11 16:02:00,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:00,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:00,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2021-06-11 16:02:00,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7727272727272727 [2021-06-11 16:02:00,679 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 374 transitions. [2021-06-11 16:02:00,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 374 transitions. [2021-06-11 16:02:00,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:00,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 374 transitions. [2021-06-11 16:02:00,681 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 16:02:00,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,683 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,683 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 82 flow. Second operand 4 states and 374 transitions. [2021-06-11 16:02:00,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 140 flow [2021-06-11 16:02:00,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:02:00,685 INFO L241 Difference]: Finished difference. Result has 32 places, 23 transitions, 112 flow [2021-06-11 16:02:00,685 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2021-06-11 16:02:00,685 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 16:02:00,685 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:00,686 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 23 transitions, 112 flow [2021-06-11 16:02:00,686 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 23 transitions, 112 flow [2021-06-11 16:02:00,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 23 transitions, 112 flow [2021-06-11 16:02:00,695 INFO L129 PetriNetUnfolder]: 33/106 cut-off events. [2021-06-11 16:02:00,695 INFO L130 PetriNetUnfolder]: For 84/87 co-relation queries the response was YES. [2021-06-11 16:02:00,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 106 events. 33/106 cut-off events. For 84/87 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 448 event pairs, 10 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 264. Up to 44 conditions per place. [2021-06-11 16:02:00,697 INFO L151 LiptonReduction]: Number of co-enabled transitions 144 [2021-06-11 16:02:00,699 INFO L163 LiptonReduction]: Checked pairs total: 57 [2021-06-11 16:02:00,699 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:00,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:02:00,700 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 112 flow [2021-06-11 16:02:00,700 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 16:02:00,700 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:00,701 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:00,701 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:02:00,701 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:00,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1320886996, now seen corresponding path program 1 times [2021-06-11 16:02:00,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:00,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778644046] [2021-06-11 16:02:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:00,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:00,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:00,742 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 16:02:00,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778644046] [2021-06-11 16:02:00,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:00,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:00,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866829185] [2021-06-11 16:02:00,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:00,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:00,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:00,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:00,745 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 121 [2021-06-11 16:02:00,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:00,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 121 [2021-06-11 16:02:00,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:00,783 INFO L129 PetriNetUnfolder]: 29/119 cut-off events. [2021-06-11 16:02:00,784 INFO L130 PetriNetUnfolder]: For 148/181 co-relation queries the response was YES. [2021-06-11 16:02:00,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 119 events. 29/119 cut-off events. For 148/181 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 582 event pairs, 0 based on Foata normal form. 13/130 useless extension candidates. Maximal degree in co-relation 353. Up to 49 conditions per place. [2021-06-11 16:02:00,786 INFO L132 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 5 changer transitions 8/33 dead transitions. [2021-06-11 16:02:00,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 216 flow [2021-06-11 16:02:00,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:00,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 390 transitions. [2021-06-11 16:02:00,788 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8057851239669421 [2021-06-11 16:02:00,789 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 390 transitions. [2021-06-11 16:02:00,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 390 transitions. [2021-06-11 16:02:00,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:00,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 390 transitions. [2021-06-11 16:02:00,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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 16:02:00,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,794 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,794 INFO L185 Difference]: Start difference. First operand has 32 places, 23 transitions, 112 flow. Second operand 4 states and 390 transitions. [2021-06-11 16:02:00,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 216 flow [2021-06-11 16:02:00,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 16:02:00,797 INFO L241 Difference]: Finished difference. Result has 36 places, 25 transitions, 144 flow [2021-06-11 16:02:00,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2021-06-11 16:02:00,797 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2021-06-11 16:02:00,797 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:00,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 25 transitions, 144 flow [2021-06-11 16:02:00,798 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 25 transitions, 144 flow [2021-06-11 16:02:00,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 25 transitions, 144 flow [2021-06-11 16:02:00,806 INFO L129 PetriNetUnfolder]: 19/78 cut-off events. [2021-06-11 16:02:00,807 INFO L130 PetriNetUnfolder]: For 86/95 co-relation queries the response was YES. [2021-06-11 16:02:00,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 78 events. 19/78 cut-off events. For 86/95 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 290 event pairs, 0 based on Foata normal form. 1/77 useless extension candidates. Maximal degree in co-relation 222. Up to 32 conditions per place. [2021-06-11 16:02:00,809 INFO L151 LiptonReduction]: Number of co-enabled transitions 148 [2021-06-11 16:02:00,811 INFO L163 LiptonReduction]: Checked pairs total: 65 [2021-06-11 16:02:00,811 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:00,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:02:00,814 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 25 transitions, 144 flow [2021-06-11 16:02:00,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:00,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:00,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:02:00,816 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:00,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:00,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1662845356, now seen corresponding path program 1 times [2021-06-11 16:02:00,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:00,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603930987] [2021-06-11 16:02:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:00,885 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:00,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:00,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:00,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:00,892 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 16:02:00,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603930987] [2021-06-11 16:02:00,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:00,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:02:00,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515051752] [2021-06-11 16:02:00,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:00,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:00,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:00,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:00,901 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 121 [2021-06-11 16:02:00,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 25 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:00,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 121 [2021-06-11 16:02:00,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:00,938 INFO L129 PetriNetUnfolder]: 14/97 cut-off events. [2021-06-11 16:02:00,938 INFO L130 PetriNetUnfolder]: For 171/192 co-relation queries the response was YES. [2021-06-11 16:02:00,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 97 events. 14/97 cut-off events. For 171/192 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 480 event pairs, 0 based on Foata normal form. 12/107 useless extension candidates. Maximal degree in co-relation 300. Up to 34 conditions per place. [2021-06-11 16:02:00,939 INFO L132 encePairwiseOnDemand]: 117/121 looper letters, 6 selfloop transitions, 4 changer transitions 9/31 dead transitions. [2021-06-11 16:02:00,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 222 flow [2021-06-11 16:02:00,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:02:00,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:02:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 485 transitions. [2021-06-11 16:02:00,941 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8016528925619835 [2021-06-11 16:02:00,942 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 485 transitions. [2021-06-11 16:02:00,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 485 transitions. [2021-06-11 16:02:00,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:00,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 485 transitions. [2021-06-11 16:02:00,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 16:02:00,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 16:02:00,945 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 16:02:00,945 INFO L185 Difference]: Start difference. First operand has 36 places, 25 transitions, 144 flow. Second operand 5 states and 485 transitions. [2021-06-11 16:02:00,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 222 flow [2021-06-11 16:02:00,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 207 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-06-11 16:02:00,949 INFO L241 Difference]: Finished difference. Result has 41 places, 22 transitions, 125 flow [2021-06-11 16:02:00,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=41, PETRI_TRANSITIONS=22} [2021-06-11 16:02:00,949 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2021-06-11 16:02:00,949 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:00,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 22 transitions, 125 flow [2021-06-11 16:02:00,950 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 22 transitions, 125 flow [2021-06-11 16:02:00,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 22 transitions, 125 flow [2021-06-11 16:02:00,956 INFO L129 PetriNetUnfolder]: 7/55 cut-off events. [2021-06-11 16:02:00,956 INFO L130 PetriNetUnfolder]: For 91/92 co-relation queries the response was YES. [2021-06-11 16:02:00,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 55 events. 7/55 cut-off events. For 91/92 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 184 event pairs, 0 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 154. Up to 19 conditions per place. [2021-06-11 16:02:00,958 INFO L151 LiptonReduction]: Number of co-enabled transitions 116 [2021-06-11 16:02:00,962 INFO L163 LiptonReduction]: Checked pairs total: 38 [2021-06-11 16:02:00,962 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:00,963 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:02:00,969 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 125 flow [2021-06-11 16:02:00,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:00,970 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:00,970 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:00,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:02:00,970 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:00,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1136080638, now seen corresponding path program 1 times [2021-06-11 16:02:00,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:00,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679070947] [2021-06-11 16:02:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:01,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,026 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:02:01,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:02:01,036 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 16:02:01,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679070947] [2021-06-11 16:02:01,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:01,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:01,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953146583] [2021-06-11 16:02:01,037 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:01,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:01,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:01,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:01,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 121 [2021-06-11 16:02:01,039 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 16:02:01,039 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:01,040 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 121 [2021-06-11 16:02:01,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:01,060 INFO L129 PetriNetUnfolder]: 4/46 cut-off events. [2021-06-11 16:02:01,060 INFO L130 PetriNetUnfolder]: For 101/112 co-relation queries the response was YES. [2021-06-11 16:02:01,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 46 events. 4/46 cut-off events. For 101/112 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 149 event pairs, 0 based on Foata normal form. 3/48 useless extension candidates. Maximal degree in co-relation 146. Up to 14 conditions per place. [2021-06-11 16:02:01,061 INFO L132 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 5 changer transitions 2/25 dead transitions. [2021-06-11 16:02:01,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 25 transitions, 180 flow [2021-06-11 16:02:01,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:02:01,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7665289256198347 [2021-06-11 16:02:01,063 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:01,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 16:02:01,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:01,067 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:01,067 INFO L185 Difference]: Start difference. First operand has 39 places, 22 transitions, 125 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:02:01,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 25 transitions, 180 flow [2021-06-11 16:02:01,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 25 transitions, 150 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-06-11 16:02:01,070 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 133 flow [2021-06-11 16:02:01,070 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=133, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2021-06-11 16:02:01,070 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-06-11 16:02:01,070 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:01,070 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 23 transitions, 133 flow [2021-06-11 16:02:01,071 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 23 transitions, 133 flow [2021-06-11 16:02:01,071 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 23 transitions, 133 flow [2021-06-11 16:02:01,081 INFO L129 PetriNetUnfolder]: 3/43 cut-off events. [2021-06-11 16:02:01,081 INFO L130 PetriNetUnfolder]: For 40/41 co-relation queries the response was YES. [2021-06-11 16:02:01,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 43 events. 3/43 cut-off events. For 40/41 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 137 event pairs, 0 based on Foata normal form. 1/43 useless extension candidates. Maximal degree in co-relation 112. Up to 13 conditions per place. [2021-06-11 16:02:01,082 INFO L151 LiptonReduction]: Number of co-enabled transitions 120 [2021-06-11 16:02:01,084 INFO L163 LiptonReduction]: Checked pairs total: 54 [2021-06-11 16:02:01,084 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:01,084 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-06-11 16:02:01,086 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 133 flow [2021-06-11 16:02:01,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 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 16:02:01,087 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:01,087 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:01,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:02:01,087 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:01,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:01,088 INFO L82 PathProgramCache]: Analyzing trace with hash 545661216, now seen corresponding path program 1 times [2021-06-11 16:02:01,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:01,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722124549] [2021-06-11 16:02:01,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:01,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:01,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,156 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-06-11 16:02:01,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:02:01,165 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 16:02:01,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722124549] [2021-06-11 16:02:01,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:01,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:02:01,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789271581] [2021-06-11 16:02:01,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:01,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:01,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:01,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:01,168 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 121 [2021-06-11 16:02:01,168 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 133 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:01,168 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:01,168 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 121 [2021-06-11 16:02:01,168 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:01,202 INFO L129 PetriNetUnfolder]: 3/48 cut-off events. [2021-06-11 16:02:01,202 INFO L130 PetriNetUnfolder]: For 55/63 co-relation queries the response was YES. [2021-06-11 16:02:01,203 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 48 events. 3/48 cut-off events. For 55/63 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 152 event pairs, 0 based on Foata normal form. 5/52 useless extension candidates. Maximal degree in co-relation 142. Up to 19 conditions per place. [2021-06-11 16:02:01,203 INFO L132 encePairwiseOnDemand]: 114/121 looper letters, 4 selfloop transitions, 4 changer transitions 10/27 dead transitions. [2021-06-11 16:02:01,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 189 flow [2021-06-11 16:02:01,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:02:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:02:01,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 450 transitions. [2021-06-11 16:02:01,205 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.743801652892562 [2021-06-11 16:02:01,205 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 450 transitions. [2021-06-11 16:02:01,205 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 450 transitions. [2021-06-11 16:02:01,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:01,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 450 transitions. [2021-06-11 16:02:01,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 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 16:02:01,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 16:02:01,208 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 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 16:02:01,208 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 133 flow. Second operand 5 states and 450 transitions. [2021-06-11 16:02:01,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 189 flow [2021-06-11 16:02:01,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 172 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-06-11 16:02:01,209 INFO L241 Difference]: Finished difference. Result has 39 places, 17 transitions, 84 flow [2021-06-11 16:02:01,209 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=39, PETRI_TRANSITIONS=17} [2021-06-11 16:02:01,210 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 12 predicate places. [2021-06-11 16:02:01,210 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:01,210 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 17 transitions, 84 flow [2021-06-11 16:02:01,210 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 17 transitions, 84 flow [2021-06-11 16:02:01,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 17 transitions, 84 flow [2021-06-11 16:02:01,224 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-06-11 16:02:01,224 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 16:02:01,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 19 events. 0/19 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 11 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2021-06-11 16:02:01,224 INFO L151 LiptonReduction]: Number of co-enabled transitions 52 [2021-06-11 16:02:01,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:01,248 INFO L163 LiptonReduction]: Checked pairs total: 40 [2021-06-11 16:02:01,249 INFO L165 LiptonReduction]: Total number of compositions: 1 [2021-06-11 16:02:01,249 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 16:02:01,249 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 16 transitions, 82 flow [2021-06-11 16:02:01,250 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:02:01,250 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:01,250 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:01,250 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 16:02:01,250 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:01,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:01,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1136876346, now seen corresponding path program 1 times [2021-06-11 16:02:01,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:01,251 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620542607] [2021-06-11 16:02:01,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:01,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,282 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 16:02:01,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620542607] [2021-06-11 16:02:01,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:01,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:02:01,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382928194] [2021-06-11 16:02:01,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:02:01,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:01,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:02:01,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:02:01,284 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 122 [2021-06-11 16:02:01,285 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 16 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 16:02:01,285 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:01,285 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 122 [2021-06-11 16:02:01,285 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:01,307 INFO L129 PetriNetUnfolder]: 23/64 cut-off events. [2021-06-11 16:02:01,307 INFO L130 PetriNetUnfolder]: For 64/73 co-relation queries the response was YES. [2021-06-11 16:02:01,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 64 events. 23/64 cut-off events. For 64/73 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 192 event pairs, 5 based on Foata normal form. 4/59 useless extension candidates. Maximal degree in co-relation 148. Up to 27 conditions per place. [2021-06-11 16:02:01,308 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 6 selfloop transitions, 4 changer transitions 3/23 dead transitions. [2021-06-11 16:02:01,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 23 transitions, 122 flow [2021-06-11 16:02:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-11 16:02:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-06-11 16:02:01,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2021-06-11 16:02:01,310 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7602459016393442 [2021-06-11 16:02:01,310 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:01,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2021-06-11 16:02:01,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 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 16:02:01,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 16:02:01,313 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 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 16:02:01,313 INFO L185 Difference]: Start difference. First operand has 38 places, 16 transitions, 82 flow. Second operand 4 states and 371 transitions. [2021-06-11 16:02:01,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 23 transitions, 122 flow [2021-06-11 16:02:01,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 94 flow, removed 3 selfloop flow, removed 11 redundant places. [2021-06-11 16:02:01,314 INFO L241 Difference]: Finished difference. Result has 32 places, 18 transitions, 82 flow [2021-06-11 16:02:01,314 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=82, PETRI_PLACES=32, PETRI_TRANSITIONS=18} [2021-06-11 16:02:01,314 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-06-11 16:02:01,314 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:01,314 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 18 transitions, 82 flow [2021-06-11 16:02:01,315 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 18 transitions, 82 flow [2021-06-11 16:02:01,315 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 18 transitions, 82 flow [2021-06-11 16:02:01,318 INFO L129 PetriNetUnfolder]: 7/34 cut-off events. [2021-06-11 16:02:01,318 INFO L130 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2021-06-11 16:02:01,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 34 events. 7/34 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 60 event pairs, 3 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 81. Up to 20 conditions per place. [2021-06-11 16:02:01,318 INFO L151 LiptonReduction]: Number of co-enabled transitions 42 [2021-06-11 16:02:01,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:01,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:01,397 INFO L163 LiptonReduction]: Checked pairs total: 8 [2021-06-11 16:02:01,397 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 16:02:01,398 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-06-11 16:02:01,400 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 82 flow [2021-06-11 16:02:01,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 16:02:01,401 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:01,401 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:01,401 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 16:02:01,401 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:01,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:01,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1113072031, now seen corresponding path program 1 times [2021-06-11 16:02:01,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:01,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589442542] [2021-06-11 16:02:01,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:01,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,454 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 16:02:01,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:02:01,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,461 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 16:02:01,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589442542] [2021-06-11 16:02:01,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:01,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:02:01,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442248701] [2021-06-11 16:02:01,462 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:02:01,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:01,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:02:01,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:02:01,463 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 124 [2021-06-11 16:02:01,464 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 82 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 16:02:01,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:01,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 124 [2021-06-11 16:02:01,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:01,499 INFO L129 PetriNetUnfolder]: 9/41 cut-off events. [2021-06-11 16:02:01,500 INFO L130 PetriNetUnfolder]: For 60/72 co-relation queries the response was YES. [2021-06-11 16:02:01,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 41 events. 9/41 cut-off events. For 60/72 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 99 event pairs, 0 based on Foata normal form. 5/41 useless extension candidates. Maximal degree in co-relation 122. Up to 22 conditions per place. [2021-06-11 16:02:01,500 INFO L132 encePairwiseOnDemand]: 117/124 looper letters, 2 selfloop transitions, 6 changer transitions 7/24 dead transitions. [2021-06-11 16:02:01,500 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 141 flow [2021-06-11 16:02:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:02:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:02:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 467 transitions. [2021-06-11 16:02:01,503 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7532258064516129 [2021-06-11 16:02:01,503 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 467 transitions. [2021-06-11 16:02:01,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 467 transitions. [2021-06-11 16:02:01,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:01,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 467 transitions. [2021-06-11 16:02:01,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.4) internal successors, (467), 5 states have internal predecessors, (467), 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 16:02:01,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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 16:02:01,506 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 124.0) internal successors, (744), 6 states have internal predecessors, (744), 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 16:02:01,506 INFO L185 Difference]: Start difference. First operand has 31 places, 17 transitions, 82 flow. Second operand 5 states and 467 transitions. [2021-06-11 16:02:01,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 24 transitions, 141 flow [2021-06-11 16:02:01,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 24 transitions, 132 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-06-11 16:02:01,507 INFO L241 Difference]: Finished difference. Result has 35 places, 17 transitions, 100 flow [2021-06-11 16:02:01,507 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=35, PETRI_TRANSITIONS=17} [2021-06-11 16:02:01,507 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-06-11 16:02:01,507 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:01,508 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 17 transitions, 100 flow [2021-06-11 16:02:01,508 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 17 transitions, 100 flow [2021-06-11 16:02:01,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 17 transitions, 100 flow [2021-06-11 16:02:01,510 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-06-11 16:02:01,510 INFO L130 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2021-06-11 16:02:01,510 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 22 events. 1/22 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 1/22 useless extension candidates. Maximal degree in co-relation 61. Up to 8 conditions per place. [2021-06-11 16:02:01,511 INFO L151 LiptonReduction]: Number of co-enabled transitions 26 [2021-06-11 16:02:01,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:02:01,603 INFO L163 LiptonReduction]: Checked pairs total: 4 [2021-06-11 16:02:01,603 INFO L165 LiptonReduction]: Total number of compositions: 2 [2021-06-11 16:02:01,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 97 [2021-06-11 16:02:01,604 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 16 transitions, 100 flow [2021-06-11 16:02:01,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 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 16:02:01,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:02:01,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:02:01,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 16:02:01,605 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:02:01,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:02:01,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1209119713, now seen corresponding path program 1 times [2021-06-11 16:02:01,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:02:01,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541172858] [2021-06-11 16:02:01,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:02:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:02:01,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,657 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-06-11 16:02:01,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-06-11 16:02:01,660 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:02:01,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:02:01,664 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 16:02:01,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541172858] [2021-06-11 16:02:01,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:02:01,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 16:02:01,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111520797] [2021-06-11 16:02:01,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 16:02:01,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:02:01,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 16:02:01,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-06-11 16:02:01,666 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 126 [2021-06-11 16:02:01,667 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 16 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 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 16:02:01,667 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:02:01,667 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 126 [2021-06-11 16:02:01,667 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:02:01,701 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-06-11 16:02:01,701 INFO L130 PetriNetUnfolder]: For 54/59 co-relation queries the response was YES. [2021-06-11 16:02:01,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 19 events. 1/19 cut-off events. For 54/59 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 3/21 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2021-06-11 16:02:01,701 INFO L132 encePairwiseOnDemand]: 118/126 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-06-11 16:02:01,701 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 16 transitions, 108 flow [2021-06-11 16:02:01,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 16:02:01,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 16:02:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2021-06-11 16:02:01,703 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7261904761904762 [2021-06-11 16:02:01,703 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 549 transitions. [2021-06-11 16:02:01,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 549 transitions. [2021-06-11 16:02:01,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:02:01,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 549 transitions. [2021-06-11 16:02:01,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.5) internal successors, (549), 6 states have internal predecessors, (549), 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 16:02:01,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 16:02:01,707 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 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 16:02:01,707 INFO L185 Difference]: Start difference. First operand has 34 places, 16 transitions, 100 flow. Second operand 6 states and 549 transitions. [2021-06-11 16:02:01,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 16 transitions, 108 flow [2021-06-11 16:02:01,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 16 transitions, 79 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-06-11 16:02:01,708 INFO L241 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2021-06-11 16:02:01,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2021-06-11 16:02:01,708 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2021-06-11 16:02:01,708 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:02:01,708 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 0 transitions, 0 flow [2021-06-11 16:02:01,708 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 0 transitions, 0 flow [2021-06-11 16:02:01,708 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:02:01,708 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:02:01,709 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:02:01,709 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 16:02:01,709 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:02:01,709 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:02:01,709 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:02:01,709 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:02:01,709 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:02:01,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 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 16:02:01,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 16:02:01,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:02:01 BasicIcfg [2021-06-11 16:02:01,713 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:02:01,713 INFO L168 Benchmark]: Toolchain (without parser) took 5321.38 ms. Allocated memory was 383.8 MB in the beginning and 469.8 MB in the end (delta: 86.0 MB). Free memory was 346.5 MB in the beginning and 346.8 MB in the end (delta: -295.2 kB). Peak memory consumption was 85.8 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:01,714 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 383.8 MB. Free memory was 364.7 MB in the beginning and 364.6 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:02:01,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.25 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.2 MB in the end (delta: 22.9 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:01,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.75 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 344.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:01,715 INFO L168 Benchmark]: Boogie Preprocessor took 32.37 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 343.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:02:01,715 INFO L168 Benchmark]: RCFGBuilder took 446.75 ms. Allocated memory is still 383.8 MB. Free memory was 343.1 MB in the beginning and 319.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:01,715 INFO L168 Benchmark]: TraceAbstraction took 4327.51 ms. Allocated memory was 383.8 MB in the beginning and 469.8 MB in the end (delta: 86.0 MB). Free memory was 319.0 MB in the beginning and 346.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.0 GB. [2021-06-11 16:02:01,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 383.8 MB. Free memory was 364.7 MB in the beginning and 364.6 MB in the end (delta: 76.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 440.25 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 346.2 MB in the end (delta: 22.9 kB). Peak memory consumption was 7.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.75 ms. Allocated memory is still 383.8 MB. Free memory was 346.2 MB in the beginning and 344.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.37 ms. Allocated memory is still 383.8 MB. Free memory was 344.1 MB in the beginning and 343.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 446.75 ms. Allocated memory is still 383.8 MB. Free memory was 343.1 MB in the beginning and 319.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4327.51 ms. Allocated memory was 383.8 MB in the beginning and 469.8 MB in the end (delta: 86.0 MB). Free memory was 319.0 MB in the beginning and 346.8 MB in the end (delta: -27.8 MB). Peak memory consumption was 59.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2568.2ms, 69 PlacesBefore, 27 PlacesAfterwards, 60 TransitionsBefore, 17 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 1456 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 843, positive: 771, positive conditional: 771, positive unconditional: 0, negative: 72, negative conditional: 72, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 843, positive: 771, positive conditional: 0, positive unconditional: 771, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 843, positive: 771, positive conditional: 0, positive unconditional: 771, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 600, positive: 572, positive conditional: 0, positive unconditional: 572, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 600, positive: 564, positive conditional: 0, positive unconditional: 564, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 139, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 843, positive: 199, positive conditional: 0, positive unconditional: 199, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 600, unknown conditional: 0, unknown unconditional: 600] , Statistics on independence cache: Total cache size (in pairs): 600, Positive cache size: 572, Positive conditional cache size: 0, Positive unconditional cache size: 572, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.4ms, 28 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 39 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 19, positive: 16, positive conditional: 16, 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: 19, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 19, positive: 16, positive conditional: 0, positive unconditional: 16, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.2ms, 32 PlacesBefore, 32 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 57 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 28, positive: 24, positive conditional: 24, 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: 28, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 28, positive: 24, positive conditional: 0, positive unconditional: 24, 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: 28, positive: 24, positive conditional: 0, positive unconditional: 24, 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): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 9 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.8ms, 36 PlacesBefore, 36 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 65 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 33, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 33, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 33, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1ms, 41 PlacesBefore, 39 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 116 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 8, positive conditional: 8, 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: 12, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 12, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 12, positive: 8, positive conditional: 0, positive unconditional: 8, 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): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.5ms, 38 PlacesBefore, 38 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 39 PlacesBefore, 38 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 52 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 40 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 3, positive conditional: 3, 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: 7, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 7, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 7, positive: 3, positive conditional: 0, positive unconditional: 3, 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): 602, Positive cache size: 574, Positive conditional cache size: 0, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.8ms, 32 PlacesBefore, 31 PlacesAfterwards, 18 TransitionsBefore, 17 TransitionsAfterwards, 42 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): 604, Positive cache size: 576, Positive conditional cache size: 2, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.6ms, 35 PlacesBefore, 34 PlacesAfterwards, 17 TransitionsBefore, 16 TransitionsAfterwards, 26 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, 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: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 4, positive conditional: 4, 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): 604, Positive cache size: 576, Positive conditional cache size: 2, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 31 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): 604, Positive cache size: 576, Positive conditional cache size: 2, Positive unconditional cache size: 574, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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: 2.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4210.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 417.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2671.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49 SDtfs, 30 SDslu, 20 SDs, 0 SdLazy, 101 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 93.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 111.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=3, InterpolantAutomatonStates: 40, 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: 23.5ms SsaConstructionTime, 195.2ms SatisfiabilityAnalysisTime, 414.0ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...