/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/safe015_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:33:15,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:33:15,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:33:15,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:33:15,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:33:15,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:33:15,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:33:15,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:33:15,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:33:15,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:33:15,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:33:15,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:33:15,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:33:15,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:33:15,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:33:15,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:33:15,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:33:15,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:33:15,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:33:15,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:33:15,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:33:15,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:33:15,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:33:15,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:33:15,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:33:15,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:33:15,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:33:15,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:33:15,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:33:16,019 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:33:16,020 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:33:16,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:33:16,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:33:16,022 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:33:16,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:33:16,023 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:33:16,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:33:16,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:33:16,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:33:16,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:33:16,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:33:16,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:33:16,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:33:16,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:33:16,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:33:16,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:33:16,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:33:16,026 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:33:16,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:33:16,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:33:16,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:33:16,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:33:16,284 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:33:16,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-03-26 10:33:16,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc9efba1/171db47612e549ecbeb9269be24f87cf/FLAG222ccc4b5 [2021-03-26 10:33:16,856 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:33:16,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_pso.opt.i [2021-03-26 10:33:16,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc9efba1/171db47612e549ecbeb9269be24f87cf/FLAG222ccc4b5 [2021-03-26 10:33:17,051 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc9efba1/171db47612e549ecbeb9269be24f87cf [2021-03-26 10:33:17,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:33:17,054 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:33:17,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:33:17,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:33:17,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:33:17,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab6dba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17, skipping insertion in model container [2021-03-26 10:33:17,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:33:17,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:33:17,190 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/safe015_pso.opt.i[949,962] [2021-03-26 10:33:17,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:33:17,323 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:33:17,331 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/safe015_pso.opt.i[949,962] [2021-03-26 10:33:17,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:33:17,409 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:33:17,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17 WrapperNode [2021-03-26 10:33:17,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:33:17,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:33:17,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:33:17,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:33:17,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:33:17,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:33:17,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:33:17,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:33:17,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... [2021-03-26 10:33:17,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:33:17,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:33:17,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:33:17,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:33:17,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:33:17,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:33:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:33:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:33:17,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:33:17,494 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:33:17,494 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:33:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:33:17,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:33:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:33:17,495 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:33:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:33:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:33:17,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:33:17,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:33:17,496 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:33:17,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:33:17,788 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:33:17,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:33:17 BoogieIcfgContainer [2021-03-26 10:33:17,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:33:17,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:33:17,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:33:17,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:33:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:33:17" (1/3) ... [2021-03-26 10:33:17,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fa7c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:33:17, skipping insertion in model container [2021-03-26 10:33:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:33:17" (2/3) ... [2021-03-26 10:33:17,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16fa7c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:33:17, skipping insertion in model container [2021-03-26 10:33:17,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:33:17" (3/3) ... [2021-03-26 10:33:17,793 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_pso.opt.i [2021-03-26 10:33:17,797 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:33:17,800 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:33:17,800 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:33:17,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,821 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,821 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,822 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,823 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,824 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,827 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,827 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,830 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,830 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,830 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,832 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,832 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:33:17,834 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:33:17,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:33:17,858 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:33:17,858 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:33:17,858 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:33:17,858 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:33:17,858 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:33:17,858 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:33:17,858 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:33:17,859 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:33:17,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 10:33:17,893 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-03-26 10:33:17,893 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:17,896 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:33:17,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-03-26 10:33:17,898 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-03-26 10:33:17,899 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:17,907 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 10:33:17,920 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-03-26 10:33:17,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-03-26 10:33:17,931 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-03-26 10:33:17,931 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:17,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:33:17,933 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:33:19,083 INFO L154 LiptonReduction]: Checked pairs total: 1194 [2021-03-26 10:33:19,083 INFO L156 LiptonReduction]: Total number of compositions: 40 [2021-03-26 10:33:19,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1186 [2021-03-26 10:33:19,091 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 10:33:19,091 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:19,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:19,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:19,092 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:19,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:19,095 INFO L82 PathProgramCache]: Analyzing trace with hash 509991216, now seen corresponding path program 1 times [2021-03-26 10:33:19,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:19,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966791217] [2021-03-26 10:33:19,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:19,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:19,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:19,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:19,233 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:19,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:19,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:19,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966791217] [2021-03-26 10:33:19,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:19,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:19,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385472234] [2021-03-26 10:33:19,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:19,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:19,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:19,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:19,259 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 114 [2021-03-26 10:33:19,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:19,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:19,260 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 114 [2021-03-26 10:33:19,261 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:19,327 INFO L129 PetriNetUnfolder]: 178/361 cut-off events. [2021-03-26 10:33:19,327 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:19,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 681 conditions, 361 events. 178/361 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1696 event pairs, 14 based on Foata normal form. 37/384 useless extension candidates. Maximal degree in co-relation 667. Up to 110 conditions per place. [2021-03-26 10:33:19,330 INFO L132 encePairwiseOnDemand]: 105/114 looper letters, 13 selfloop transitions, 7 changer transitions 17/48 dead transitions. [2021-03-26 10:33:19,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 48 transitions, 179 flow [2021-03-26 10:33:19,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:19,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 614 transitions. [2021-03-26 10:33:19,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7694235588972431 [2021-03-26 10:33:19,341 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 614 transitions. [2021-03-26 10:33:19,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 614 transitions. [2021-03-26 10:33:19,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:19,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 614 transitions. [2021-03-26 10:33:19,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.71428571428571) internal successors, (614), 7 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:19,352 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:19,353 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 114.0) internal successors, (912), 8 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:19,354 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 614 transitions. [2021-03-26 10:33:19,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 48 transitions, 179 flow [2021-03-26 10:33:19,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 176 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:33:19,357 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 116 flow [2021-03-26 10:33:19,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=114, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2021-03-26 10:33:19,361 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 10:33:19,361 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:19,361 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 26 transitions, 116 flow [2021-03-26 10:33:19,361 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 26 transitions, 116 flow [2021-03-26 10:33:19,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 26 transitions, 116 flow [2021-03-26 10:33:19,383 INFO L129 PetriNetUnfolder]: 93/221 cut-off events. [2021-03-26 10:33:19,383 INFO L130 PetriNetUnfolder]: For 172/189 co-relation queries the response was YES. [2021-03-26 10:33:19,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 221 events. 93/221 cut-off events. For 172/189 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1028 event pairs, 26 based on Foata normal form. 6/208 useless extension candidates. Maximal degree in co-relation 587. Up to 91 conditions per place. [2021-03-26 10:33:19,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 10:33:19,665 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:33:19,856 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-03-26 10:33:19,928 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:33:19,928 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:33:19,928 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 567 [2021-03-26 10:33:19,929 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 110 flow [2021-03-26 10:33:19,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:19,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:19,930 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:19,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:33:19,930 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:19,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:19,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1370680032, now seen corresponding path program 1 times [2021-03-26 10:33:19,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:19,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431846665] [2021-03-26 10:33:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:19,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:19,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:19,993 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:19,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:19,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:19,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431846665] [2021-03-26 10:33:20,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:20,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105547831] [2021-03-26 10:33:20,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:20,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:20,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:20,011 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 10:33:20,011 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 110 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,011 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,012 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 10:33:20,012 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,073 INFO L129 PetriNetUnfolder]: 106/259 cut-off events. [2021-03-26 10:33:20,073 INFO L130 PetriNetUnfolder]: For 417/493 co-relation queries the response was YES. [2021-03-26 10:33:20,074 INFO L84 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 259 events. 106/259 cut-off events. For 417/493 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1258 event pairs, 2 based on Foata normal form. 28/281 useless extension candidates. Maximal degree in co-relation 897. Up to 98 conditions per place. [2021-03-26 10:33:20,075 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 15 selfloop transitions, 11 changer transitions 17/52 dead transitions. [2021-03-26 10:33:20,075 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 52 transitions, 372 flow [2021-03-26 10:33:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 609 transitions. [2021-03-26 10:33:20,081 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7435897435897436 [2021-03-26 10:33:20,081 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 609 transitions. [2021-03-26 10:33:20,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 609 transitions. [2021-03-26 10:33:20,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 609 transitions. [2021-03-26 10:33:20,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.0) internal successors, (609), 7 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,087 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,087 INFO L185 Difference]: Start difference. First operand has 34 places, 23 transitions, 110 flow. Second operand 7 states and 609 transitions. [2021-03-26 10:33:20,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 52 transitions, 372 flow [2021-03-26 10:33:20,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 52 transitions, 364 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 10:33:20,090 INFO L241 Difference]: Finished difference. Result has 44 places, 30 transitions, 219 flow [2021-03-26 10:33:20,090 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=219, PETRI_PLACES=44, PETRI_TRANSITIONS=30} [2021-03-26 10:33:20,091 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 10:33:20,091 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 10:33:20,091 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 30 transitions, 219 flow [2021-03-26 10:33:20,091 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 30 transitions, 219 flow [2021-03-26 10:33:20,105 INFO L129 PetriNetUnfolder]: 66/172 cut-off events. [2021-03-26 10:33:20,106 INFO L130 PetriNetUnfolder]: For 406/426 co-relation queries the response was YES. [2021-03-26 10:33:20,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 172 events. 66/172 cut-off events. For 406/426 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 748 event pairs, 13 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 650. Up to 58 conditions per place. [2021-03-26 10:33:20,109 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 10:33:20,126 INFO L154 LiptonReduction]: Checked pairs total: 92 [2021-03-26 10:33:20,126 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:20,126 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 10:33:20,129 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 219 flow [2021-03-26 10:33:20,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,129 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,129 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:33:20,130 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,130 INFO L82 PathProgramCache]: Analyzing trace with hash 836745912, now seen corresponding path program 1 times [2021-03-26 10:33:20,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669542839] [2021-03-26 10:33:20,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,175 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:20,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:20,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669542839] [2021-03-26 10:33:20,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:20,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609662520] [2021-03-26 10:33:20,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:20,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:20,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:20,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 10:33:20,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 10:33:20,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,226 INFO L129 PetriNetUnfolder]: 79/210 cut-off events. [2021-03-26 10:33:20,226 INFO L130 PetriNetUnfolder]: For 830/967 co-relation queries the response was YES. [2021-03-26 10:33:20,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 210 events. 79/210 cut-off events. For 830/967 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 957 event pairs, 2 based on Foata normal form. 21/229 useless extension candidates. Maximal degree in co-relation 960. Up to 77 conditions per place. [2021-03-26 10:33:20,227 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 16 selfloop transitions, 21 changer transitions 12/58 dead transitions. [2021-03-26 10:33:20,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 566 flow [2021-03-26 10:33:20,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:20,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2021-03-26 10:33:20,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7448107448107448 [2021-03-26 10:33:20,229 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2021-03-26 10:33:20,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2021-03-26 10:33:20,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2021-03-26 10:33:20,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.14285714285714) internal successors, (610), 7 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) [2021-03-26 10:33:20,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,232 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,232 INFO L185 Difference]: Start difference. First operand has 41 places, 30 transitions, 219 flow. Second operand 7 states and 610 transitions. [2021-03-26 10:33:20,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 566 flow [2021-03-26 10:33:20,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 58 transitions, 548 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-03-26 10:33:20,236 INFO L241 Difference]: Finished difference. Result has 51 places, 42 transitions, 430 flow [2021-03-26 10:33:20,237 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=430, PETRI_PLACES=51, PETRI_TRANSITIONS=42} [2021-03-26 10:33:20,237 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 20 predicate places. [2021-03-26 10:33:20,237 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,237 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 42 transitions, 430 flow [2021-03-26 10:33:20,238 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 42 transitions, 430 flow [2021-03-26 10:33:20,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 430 flow [2021-03-26 10:33:20,248 INFO L129 PetriNetUnfolder]: 57/160 cut-off events. [2021-03-26 10:33:20,248 INFO L130 PetriNetUnfolder]: For 615/645 co-relation queries the response was YES. [2021-03-26 10:33:20,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 160 events. 57/160 cut-off events. For 615/645 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 686 event pairs, 6 based on Foata normal form. 8/165 useless extension candidates. Maximal degree in co-relation 755. Up to 58 conditions per place. [2021-03-26 10:33:20,250 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-26 10:33:20,257 INFO L154 LiptonReduction]: Checked pairs total: 123 [2021-03-26 10:33:20,257 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:20,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-03-26 10:33:20,260 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 430 flow [2021-03-26 10:33:20,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:33:20,260 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1325592192, now seen corresponding path program 1 times [2021-03-26 10:33:20,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281715055] [2021-03-26 10:33:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:20,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,313 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:20,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:20,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281715055] [2021-03-26 10:33:20,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:20,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975574855] [2021-03-26 10:33:20,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:20,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:20,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:20,322 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 117 [2021-03-26 10:33:20,323 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 430 flow. Second operand has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,323 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,323 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 117 [2021-03-26 10:33:20,323 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,369 INFO L129 PetriNetUnfolder]: 56/164 cut-off events. [2021-03-26 10:33:20,370 INFO L130 PetriNetUnfolder]: For 937/1129 co-relation queries the response was YES. [2021-03-26 10:33:20,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 164 events. 56/164 cut-off events. For 937/1129 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 698 event pairs, 0 based on Foata normal form. 24/186 useless extension candidates. Maximal degree in co-relation 904. Up to 64 conditions per place. [2021-03-26 10:33:20,371 INFO L132 encePairwiseOnDemand]: 108/117 looper letters, 22 selfloop transitions, 24 changer transitions 11/66 dead transitions. [2021-03-26 10:33:20,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 66 transitions, 823 flow [2021-03-26 10:33:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:20,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:20,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 604 transitions. [2021-03-26 10:33:20,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7374847374847375 [2021-03-26 10:33:20,373 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 604 transitions. [2021-03-26 10:33:20,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 604 transitions. [2021-03-26 10:33:20,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 604 transitions. [2021-03-26 10:33:20,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.28571428571429) internal successors, (604), 7 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,377 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,377 INFO L185 Difference]: Start difference. First operand has 48 places, 42 transitions, 430 flow. Second operand 7 states and 604 transitions. [2021-03-26 10:33:20,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 66 transitions, 823 flow [2021-03-26 10:33:20,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 66 transitions, 799 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-26 10:33:20,380 INFO L241 Difference]: Finished difference. Result has 55 places, 50 transitions, 640 flow [2021-03-26 10:33:20,381 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=640, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2021-03-26 10:33:20,381 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 24 predicate places. [2021-03-26 10:33:20,381 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,381 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 50 transitions, 640 flow [2021-03-26 10:33:20,382 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 50 transitions, 640 flow [2021-03-26 10:33:20,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 50 transitions, 640 flow [2021-03-26 10:33:20,392 INFO L129 PetriNetUnfolder]: 43/129 cut-off events. [2021-03-26 10:33:20,392 INFO L130 PetriNetUnfolder]: For 786/816 co-relation queries the response was YES. [2021-03-26 10:33:20,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 745 conditions, 129 events. 43/129 cut-off events. For 786/816 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 545 event pairs, 1 based on Foata normal form. 8/136 useless extension candidates. Maximal degree in co-relation 717. Up to 48 conditions per place. [2021-03-26 10:33:20,394 INFO L142 LiptonReduction]: Number of co-enabled transitions 244 [2021-03-26 10:33:20,403 INFO L154 LiptonReduction]: Checked pairs total: 200 [2021-03-26 10:33:20,403 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:20,403 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 10:33:20,404 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 50 transitions, 640 flow [2021-03-26 10:33:20,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.2) internal successors, (416), 5 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,404 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,404 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,404 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:33:20,404 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1170559470, now seen corresponding path program 1 times [2021-03-26 10:33:20,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319062240] [2021-03-26 10:33:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,438 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:33:20,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:33:20,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319062240] [2021-03-26 10:33:20,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:20,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408923432] [2021-03-26 10:33:20,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:33:20,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:33:20,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:33:20,444 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 10:33:20,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 640 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,444 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 10:33:20,444 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,487 INFO L129 PetriNetUnfolder]: 129/315 cut-off events. [2021-03-26 10:33:20,488 INFO L130 PetriNetUnfolder]: For 1646/1797 co-relation queries the response was YES. [2021-03-26 10:33:20,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 315 events. 129/315 cut-off events. For 1646/1797 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 1770 event pairs, 30 based on Foata normal form. 50/348 useless extension candidates. Maximal degree in co-relation 1270. Up to 152 conditions per place. [2021-03-26 10:33:20,490 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 8 selfloop transitions, 8 changer transitions 0/60 dead transitions. [2021-03-26 10:33:20,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 692 flow [2021-03-26 10:33:20,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:33:20,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:33:20,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 448 transitions. [2021-03-26 10:33:20,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7658119658119659 [2021-03-26 10:33:20,491 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 448 transitions. [2021-03-26 10:33:20,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 448 transitions. [2021-03-26 10:33:20,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 448 transitions. [2021-03-26 10:33:20,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,493 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,493 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,493 INFO L185 Difference]: Start difference. First operand has 52 places, 50 transitions, 640 flow. Second operand 5 states and 448 transitions. [2021-03-26 10:33:20,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 692 flow [2021-03-26 10:33:20,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 60 transitions, 677 flow, removed 3 selfloop flow, removed 3 redundant places. [2021-03-26 10:33:20,498 INFO L241 Difference]: Finished difference. Result has 56 places, 57 transitions, 685 flow [2021-03-26 10:33:20,498 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=685, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2021-03-26 10:33:20,498 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 25 predicate places. [2021-03-26 10:33:20,498 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,498 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 57 transitions, 685 flow [2021-03-26 10:33:20,498 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 57 transitions, 685 flow [2021-03-26 10:33:20,499 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 56 places, 57 transitions, 685 flow [2021-03-26 10:33:20,521 INFO L129 PetriNetUnfolder]: 137/341 cut-off events. [2021-03-26 10:33:20,522 INFO L130 PetriNetUnfolder]: For 1241/1321 co-relation queries the response was YES. [2021-03-26 10:33:20,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1479 conditions, 341 events. 137/341 cut-off events. For 1241/1321 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 1987 event pairs, 33 based on Foata normal form. 17/345 useless extension candidates. Maximal degree in co-relation 1448. Up to 188 conditions per place. [2021-03-26 10:33:20,525 INFO L142 LiptonReduction]: Number of co-enabled transitions 394 [2021-03-26 10:33:20,532 INFO L154 LiptonReduction]: Checked pairs total: 38 [2021-03-26 10:33:20,532 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:33:20,532 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 10:33:20,534 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 679 flow [2021-03-26 10:33:20,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,534 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,534 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 10:33:20,535 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,535 INFO L82 PathProgramCache]: Analyzing trace with hash -219544953, now seen corresponding path program 1 times [2021-03-26 10:33:20,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672370461] [2021-03-26 10:33:20,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,588 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:33:20,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:33:20,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672370461] [2021-03-26 10:33:20,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:20,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534946942] [2021-03-26 10:33:20,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:20,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:20,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:20,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 10:33:20,596 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 679 flow. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,596 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,596 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 10:33:20,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,637 INFO L129 PetriNetUnfolder]: 81/218 cut-off events. [2021-03-26 10:33:20,637 INFO L130 PetriNetUnfolder]: For 1257/1461 co-relation queries the response was YES. [2021-03-26 10:33:20,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 218 events. 81/218 cut-off events. For 1257/1461 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1088 event pairs, 3 based on Foata normal form. 59/271 useless extension candidates. Maximal degree in co-relation 1111. Up to 120 conditions per place. [2021-03-26 10:33:20,638 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 5 selfloop transitions, 11 changer transitions 3/63 dead transitions. [2021-03-26 10:33:20,639 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 757 flow [2021-03-26 10:33:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 10:33:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 10:33:20,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 537 transitions. [2021-03-26 10:33:20,640 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7649572649572649 [2021-03-26 10:33:20,640 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 537 transitions. [2021-03-26 10:33:20,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 537 transitions. [2021-03-26 10:33:20,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 537 transitions. [2021-03-26 10:33:20,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.5) internal successors, (537), 6 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,643 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 117.0) internal successors, (819), 7 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,644 INFO L185 Difference]: Start difference. First operand has 56 places, 56 transitions, 679 flow. Second operand 6 states and 537 transitions. [2021-03-26 10:33:20,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 757 flow [2021-03-26 10:33:20,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 745 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-26 10:33:20,649 INFO L241 Difference]: Finished difference. Result has 59 places, 60 transitions, 737 flow [2021-03-26 10:33:20,649 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=737, PETRI_PLACES=59, PETRI_TRANSITIONS=60} [2021-03-26 10:33:20,649 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 28 predicate places. [2021-03-26 10:33:20,649 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,649 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 60 transitions, 737 flow [2021-03-26 10:33:20,649 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 60 transitions, 737 flow [2021-03-26 10:33:20,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 60 transitions, 737 flow [2021-03-26 10:33:20,663 INFO L129 PetriNetUnfolder]: 81/230 cut-off events. [2021-03-26 10:33:20,663 INFO L130 PetriNetUnfolder]: For 962/1024 co-relation queries the response was YES. [2021-03-26 10:33:20,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 230 events. 81/230 cut-off events. For 962/1024 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1239 event pairs, 4 based on Foata normal form. 2/228 useless extension candidates. Maximal degree in co-relation 1198. Up to 132 conditions per place. [2021-03-26 10:33:20,665 INFO L142 LiptonReduction]: Number of co-enabled transitions 306 [2021-03-26 10:33:20,675 INFO L154 LiptonReduction]: Checked pairs total: 24 [2021-03-26 10:33:20,675 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:33:20,675 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 10:33:20,678 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 59 transitions, 729 flow [2021-03-26 10:33:20,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,679 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,679 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,679 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 10:33:20,679 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1139411128, now seen corresponding path program 1 times [2021-03-26 10:33:20,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120754314] [2021-03-26 10:33:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:20,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120754314] [2021-03-26 10:33:20,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:20,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737234543] [2021-03-26 10:33:20,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:33:20,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:33:20,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:33:20,724 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 117 [2021-03-26 10:33:20,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 59 transitions, 729 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,725 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 117 [2021-03-26 10:33:20,725 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,753 INFO L129 PetriNetUnfolder]: 81/225 cut-off events. [2021-03-26 10:33:20,753 INFO L130 PetriNetUnfolder]: For 1332/1455 co-relation queries the response was YES. [2021-03-26 10:33:20,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 225 events. 81/225 cut-off events. For 1332/1455 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1085 event pairs, 6 based on Foata normal form. 11/229 useless extension candidates. Maximal degree in co-relation 1257. Up to 115 conditions per place. [2021-03-26 10:33:20,755 INFO L132 encePairwiseOnDemand]: 113/117 looper letters, 8 selfloop transitions, 12 changer transitions 2/59 dead transitions. [2021-03-26 10:33:20,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 59 transitions, 775 flow [2021-03-26 10:33:20,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:33:20,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:33:20,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-03-26 10:33:20,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8307692307692308 [2021-03-26 10:33:20,756 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-03-26 10:33:20,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-03-26 10:33:20,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-03-26 10:33:20,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,758 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,758 INFO L185 Difference]: Start difference. First operand has 59 places, 59 transitions, 729 flow. Second operand 5 states and 486 transitions. [2021-03-26 10:33:20,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 59 transitions, 775 flow [2021-03-26 10:33:20,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 59 transitions, 735 flow, removed 18 selfloop flow, removed 4 redundant places. [2021-03-26 10:33:20,763 INFO L241 Difference]: Finished difference. Result has 60 places, 56 transitions, 705 flow [2021-03-26 10:33:20,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=705, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2021-03-26 10:33:20,763 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 29 predicate places. [2021-03-26 10:33:20,763 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,763 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 705 flow [2021-03-26 10:33:20,763 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 705 flow [2021-03-26 10:33:20,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 56 transitions, 705 flow [2021-03-26 10:33:20,775 INFO L129 PetriNetUnfolder]: 77/208 cut-off events. [2021-03-26 10:33:20,776 INFO L130 PetriNetUnfolder]: For 870/902 co-relation queries the response was YES. [2021-03-26 10:33:20,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1066 conditions, 208 events. 77/208 cut-off events. For 870/902 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 991 event pairs, 7 based on Foata normal form. 3/208 useless extension candidates. Maximal degree in co-relation 1033. Up to 73 conditions per place. [2021-03-26 10:33:20,777 INFO L142 LiptonReduction]: Number of co-enabled transitions 218 [2021-03-26 10:33:20,780 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:33:20,780 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:20,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 10:33:20,783 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 705 flow [2021-03-26 10:33:20,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:20,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:20,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 10:33:20,783 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash -867661807, now seen corresponding path program 1 times [2021-03-26 10:33:20,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:20,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293489127] [2021-03-26 10:33:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:20,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:20,831 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-03-26 10:33:20,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 10:33:20,836 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:20,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:20,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293489127] [2021-03-26 10:33:20,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:20,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:33:20,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419510310] [2021-03-26 10:33:20,837 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:33:20,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:20,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:33:20,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:33:20,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 117 [2021-03-26 10:33:20,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 705 flow. Second operand has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:20,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 117 [2021-03-26 10:33:20,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:20,876 INFO L129 PetriNetUnfolder]: 70/191 cut-off events. [2021-03-26 10:33:20,877 INFO L130 PetriNetUnfolder]: For 822/976 co-relation queries the response was YES. [2021-03-26 10:33:20,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1073 conditions, 191 events. 70/191 cut-off events. For 822/976 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 886 event pairs, 0 based on Foata normal form. 49/233 useless extension candidates. Maximal degree in co-relation 1046. Up to 68 conditions per place. [2021-03-26 10:33:20,878 INFO L132 encePairwiseOnDemand]: 111/117 looper letters, 2 selfloop transitions, 11 changer transitions 27/60 dead transitions. [2021-03-26 10:33:20,878 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 60 transitions, 767 flow [2021-03-26 10:33:20,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:33:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:33:20,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 620 transitions. [2021-03-26 10:33:20,879 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.757020757020757 [2021-03-26 10:33:20,879 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 620 transitions. [2021-03-26 10:33:20,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 620 transitions. [2021-03-26 10:33:20,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:20,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 620 transitions. [2021-03-26 10:33:20,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.57142857142857) internal successors, (620), 7 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,882 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 117.0) internal successors, (936), 8 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:20,882 INFO L185 Difference]: Start difference. First operand has 58 places, 56 transitions, 705 flow. Second operand 7 states and 620 transitions. [2021-03-26 10:33:20,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 60 transitions, 767 flow [2021-03-26 10:33:20,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 60 transitions, 725 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-03-26 10:33:20,887 INFO L241 Difference]: Finished difference. Result has 64 places, 33 transitions, 357 flow [2021-03-26 10:33:20,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=117, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=357, PETRI_PLACES=64, PETRI_TRANSITIONS=33} [2021-03-26 10:33:20,887 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 33 predicate places. [2021-03-26 10:33:20,887 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:20,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 33 transitions, 357 flow [2021-03-26 10:33:20,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 33 transitions, 357 flow [2021-03-26 10:33:20,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 33 transitions, 357 flow [2021-03-26 10:33:20,891 INFO L129 PetriNetUnfolder]: 12/55 cut-off events. [2021-03-26 10:33:20,892 INFO L130 PetriNetUnfolder]: For 167/169 co-relation queries the response was YES. [2021-03-26 10:33:20,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 55 events. 12/55 cut-off events. For 167/169 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 150 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 279. Up to 20 conditions per place. [2021-03-26 10:33:20,892 INFO L142 LiptonReduction]: Number of co-enabled transitions 36 [2021-03-26 10:33:21,064 INFO L154 LiptonReduction]: Checked pairs total: 23 [2021-03-26 10:33:21,064 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 10:33:21,064 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 177 [2021-03-26 10:33:21,065 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 31 transitions, 401 flow [2021-03-26 10:33:21,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 86.83333333333333) internal successors, (521), 6 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:21,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:21,065 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 10:33:21,065 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:21,066 INFO L82 PathProgramCache]: Analyzing trace with hash 343565028, now seen corresponding path program 1 times [2021-03-26 10:33:21,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:21,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518669469] [2021-03-26 10:33:21,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:21,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:33:21,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:21,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:21,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:21,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:21,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518669469] [2021-03-26 10:33:21,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:21,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 10:33:21,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309565822] [2021-03-26 10:33:21,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:21,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:21,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:21,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:21,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 122 [2021-03-26 10:33:21,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 31 transitions, 401 flow. Second operand has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:21,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 122 [2021-03-26 10:33:21,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:21,124 INFO L129 PetriNetUnfolder]: 16/66 cut-off events. [2021-03-26 10:33:21,124 INFO L130 PetriNetUnfolder]: For 671/684 co-relation queries the response was YES. [2021-03-26 10:33:21,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 66 events. 16/66 cut-off events. For 671/684 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 209 event pairs, 0 based on Foata normal form. 6/72 useless extension candidates. Maximal degree in co-relation 466. Up to 29 conditions per place. [2021-03-26 10:33:21,125 INFO L132 encePairwiseOnDemand]: 116/122 looper letters, 6 selfloop transitions, 6 changer transitions 7/34 dead transitions. [2021-03-26 10:33:21,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 34 transitions, 501 flow [2021-03-26 10:33:21,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 10:33:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 10:33:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2021-03-26 10:33:21,126 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7459016393442623 [2021-03-26 10:33:21,126 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 455 transitions. [2021-03-26 10:33:21,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 455 transitions. [2021-03-26 10:33:21,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:21,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 455 transitions. [2021-03-26 10:33:21,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,128 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,128 INFO L185 Difference]: Start difference. First operand has 60 places, 31 transitions, 401 flow. Second operand 5 states and 455 transitions. [2021-03-26 10:33:21,128 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 34 transitions, 501 flow [2021-03-26 10:33:21,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 34 transitions, 338 flow, removed 24 selfloop flow, removed 17 redundant places. [2021-03-26 10:33:21,131 INFO L241 Difference]: Finished difference. Result has 48 places, 27 transitions, 237 flow [2021-03-26 10:33:21,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=122, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=48, PETRI_TRANSITIONS=27} [2021-03-26 10:33:21,131 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 17 predicate places. [2021-03-26 10:33:21,131 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:21,132 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 27 transitions, 237 flow [2021-03-26 10:33:21,132 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 27 transitions, 237 flow [2021-03-26 10:33:21,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 27 transitions, 237 flow [2021-03-26 10:33:21,136 INFO L129 PetriNetUnfolder]: 11/41 cut-off events. [2021-03-26 10:33:21,136 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2021-03-26 10:33:21,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 41 events. 11/41 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 82 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 186. Up to 14 conditions per place. [2021-03-26 10:33:21,136 INFO L142 LiptonReduction]: Number of co-enabled transitions 24 [2021-03-26 10:33:21,152 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:33:21,152 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:33:21,152 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-26 10:33:21,153 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 239 flow [2021-03-26 10:33:21,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.4) internal successors, (447), 5 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,153 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:33:21,153 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:33:21,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 10:33:21,153 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:33:21,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:33:21,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1324521762, now seen corresponding path program 1 times [2021-03-26 10:33:21,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:33:21,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020709455] [2021-03-26 10:33:21,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:33:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:33:21,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:21,180 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:33:21,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:33:21,184 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:33:21,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:33:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:33:21,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020709455] [2021-03-26 10:33:21,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:33:21,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:33:21,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433388253] [2021-03-26 10:33:21,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:33:21,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:33:21,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:33:21,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:33:21,192 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 123 [2021-03-26 10:33:21,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 239 flow. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:33:21,192 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 123 [2021-03-26 10:33:21,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:33:21,207 INFO L129 PetriNetUnfolder]: 10/37 cut-off events. [2021-03-26 10:33:21,207 INFO L130 PetriNetUnfolder]: For 283/288 co-relation queries the response was YES. [2021-03-26 10:33:21,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 37 events. 10/37 cut-off events. For 283/288 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 71 event pairs, 0 based on Foata normal form. 6/43 useless extension candidates. Maximal degree in co-relation 199. Up to 17 conditions per place. [2021-03-26 10:33:21,207 INFO L132 encePairwiseOnDemand]: 120/123 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2021-03-26 10:33:21,207 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 26 transitions, 251 flow [2021-03-26 10:33:21,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:33:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:33:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2021-03-26 10:33:21,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.725609756097561 [2021-03-26 10:33:21,208 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2021-03-26 10:33:21,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2021-03-26 10:33:21,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:33:21,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2021-03-26 10:33:21,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,210 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,210 INFO L185 Difference]: Start difference. First operand has 44 places, 27 transitions, 239 flow. Second operand 4 states and 357 transitions. [2021-03-26 10:33:21,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 26 transitions, 251 flow [2021-03-26 10:33:21,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 26 transitions, 193 flow, removed 3 selfloop flow, removed 9 redundant places. [2021-03-26 10:33:21,211 INFO L241 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2021-03-26 10:33:21,211 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2021-03-26 10:33:21,212 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 6 predicate places. [2021-03-26 10:33:21,212 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:33:21,212 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 0 transitions, 0 flow [2021-03-26 10:33:21,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 0 transitions, 0 flow [2021-03-26 10:33:21,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:33:21,212 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:33:21,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:33:21,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 10:33:21,212 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:33:21,212 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:33:21,212 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:33:21,212 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 0 [2021-03-26 10:33:21,213 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:33:21,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 10:33:21,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 10:33:21,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:33:21 BasicIcfg [2021-03-26 10:33:21,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:33:21,216 INFO L168 Benchmark]: Toolchain (without parser) took 4161.64 ms. Allocated memory was 255.9 MB in the beginning and 425.7 MB in the end (delta: 169.9 MB). Free memory was 235.4 MB in the beginning and 245.0 MB in the end (delta: -9.5 MB). Peak memory consumption was 160.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,216 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:33:21,216 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.76 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 235.4 MB in the beginning and 317.6 MB in the end (delta: -82.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.48 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 315.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,217 INFO L168 Benchmark]: Boogie Preprocessor took 12.93 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 314.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,217 INFO L168 Benchmark]: RCFGBuilder took 336.44 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 292.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,217 INFO L168 Benchmark]: TraceAbstraction took 3425.70 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 291.8 MB in the beginning and 245.0 MB in the end (delta: 46.9 MB). Peak memory consumption was 120.3 MB. Max. memory is 16.0 GB. [2021-03-26 10:33:21,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 354.76 ms. Allocated memory was 255.9 MB in the beginning and 354.4 MB in the end (delta: 98.6 MB). Free memory was 235.4 MB in the beginning and 317.6 MB in the end (delta: -82.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.48 ms. Allocated memory is still 354.4 MB. Free memory was 317.0 MB in the beginning and 315.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.93 ms. Allocated memory is still 354.4 MB. Free memory was 315.5 MB in the beginning and 314.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 336.44 ms. Allocated memory is still 354.4 MB. Free memory was 314.2 MB in the beginning and 292.5 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3425.70 ms. Allocated memory was 354.4 MB in the beginning and 425.7 MB in the end (delta: 71.3 MB). Free memory was 291.8 MB in the beginning and 245.0 MB in the end (delta: 46.9 MB). Peak memory consumption was 120.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1163.3ms, 68 PlacesBefore, 31 PlacesAfterwards, 59 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 4 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 1194 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 743, positive: 704, positive conditional: 704, positive unconditional: 0, negative: 39, negative conditional: 39, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 743, positive: 704, positive conditional: 0, positive unconditional: 704, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 743, positive: 704, positive conditional: 0, positive unconditional: 704, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 631, positive: 602, positive conditional: 0, positive unconditional: 602, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 631, positive: 596, positive conditional: 0, positive unconditional: 596, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 103, negative conditional: 0, negative unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 743, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 631, unknown conditional: 0, unknown unconditional: 631] , Statistics on independence cache: Total cache size (in pairs): 631, Positive cache size: 602, Positive conditional cache size: 0, Positive unconditional cache size: 602, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 567.1ms, 40 PlacesBefore, 34 PlacesAfterwards, 26 TransitionsBefore, 23 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 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): 631, Positive cache size: 602, Positive conditional cache size: 0, Positive unconditional cache size: 602, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.0ms, 44 PlacesBefore, 41 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 92 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 39, positive: 34, positive conditional: 34, 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: 39, positive: 34, positive conditional: 0, positive unconditional: 34, 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: 39, positive: 34, positive conditional: 0, positive unconditional: 34, 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: 14, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 39, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 14, unknown conditional: 0, unknown unconditional: 14] , Statistics on independence cache: Total cache size (in pairs): 645, Positive cache size: 614, Positive conditional cache size: 0, Positive unconditional cache size: 614, Negative cache size: 31, Negative conditional cache size: 0, Negative unconditional cache size: 31, Eliminated conditions: 4 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.7ms, 51 PlacesBefore, 48 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 123 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 64, positive: 57, positive conditional: 7, positive unconditional: 50, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 57, positive conditional: 7, positive unconditional: 50, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 2, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 64, positive: 48, positive conditional: 5, positive unconditional: 43, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 10, unknown conditional: 2, unknown unconditional: 8] , Statistics on independence cache: Total cache size (in pairs): 655, Positive cache size: 623, Positive conditional cache size: 2, Positive unconditional cache size: 621, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.8ms, 55 PlacesBefore, 52 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 244 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 200 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 98, positive: 87, positive conditional: 87, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 98, positive: 87, positive conditional: 4, positive unconditional: 83, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 98, positive: 87, positive conditional: 4, positive unconditional: 83, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 98, positive: 85, positive conditional: 4, positive unconditional: 81, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 657, Positive cache size: 625, Positive conditional cache size: 2, Positive unconditional cache size: 623, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 35 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.0ms, 56 PlacesBefore, 56 PlacesAfterwards, 57 TransitionsBefore, 56 TransitionsAfterwards, 394 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 38 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 38, 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: 38, positive: 38, positive conditional: 38, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 38, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 662, Positive cache size: 630, Positive conditional cache size: 7, Positive unconditional cache size: 623, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.5ms, 59 PlacesBefore, 59 PlacesAfterwards, 60 TransitionsBefore, 59 TransitionsAfterwards, 306 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 24 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 24, positive: 24, positive conditional: 24, 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: 5, positive: 5, positive conditional: 5, 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: 5, positive: 5, positive conditional: 0, positive unconditional: 5, 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: 24, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 667, Positive cache size: 635, Positive conditional cache size: 12, Positive unconditional cache size: 623, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.3ms, 60 PlacesBefore, 58 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 218 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): 667, Positive cache size: 635, Positive conditional cache size: 12, Positive unconditional cache size: 623, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 177.1ms, 64 PlacesBefore, 60 PlacesAfterwards, 33 TransitionsBefore, 31 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 23 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 23, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 21, positive conditional: 18, positive unconditional: 3, negative: 10, negative conditional: 2, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 21, positive conditional: 18, positive unconditional: 3, negative: 10, negative conditional: 2, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 20, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 6, negative conditional: 4, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 31, positive: 17, positive conditional: 15, positive unconditional: 2, negative: 8, negative conditional: 1, negative unconditional: 7, unknown: 6, unknown conditional: 4, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 673, Positive cache size: 639, Positive conditional cache size: 15, Positive unconditional cache size: 624, Negative cache size: 34, Negative conditional cache size: 1, Negative unconditional cache size: 33, Eliminated conditions: 11 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 48 PlacesBefore, 44 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 24 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 673, Positive cache size: 639, Positive conditional cache size: 15, Positive unconditional cache size: 624, Negative cache size: 34, Negative conditional cache size: 1, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.5ms, 37 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): 673, Positive cache size: 639, Positive conditional cache size: 15, Positive unconditional cache size: 624, Negative cache size: 34, Negative conditional cache size: 1, Negative unconditional cache size: 33, 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, 73 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: 3357.6ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 546.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1229.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 89 SDtfs, 84 SDslu, 110 SDs, 0 SdLazy, 207 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 139.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=737occurred in iteration=6, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 17.1ms SsaConstructionTime, 158.7ms SatisfiabilityAnalysisTime, 331.8ms InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 129 ConstructedInterpolants, 0 QuantifiedInterpolants, 587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...