/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 00:40:13,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 00:40:13,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 00:40:13,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-26 00:40:13,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 00:40:13,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 00:40:13,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 00:40:13,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 00:40:13,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 00:40:13,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 00:40:13,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 00:40:13,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 00:40:13,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 00:40:13,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 00:40:13,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 00:40:13,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 00:40:13,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 00:40:13,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 00:40:13,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 00:40:13,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 00:40:13,366 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-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 00:40:13,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 00:40:13,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 00:40:13,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 00:40:13,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 00:40:13,419 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 00:40:13,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 00:40:13,419 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 00:40:13,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 00:40:13,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 00:40:13,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 00:40:13,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 00:40:13,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 00:40:13,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 00:40:13,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 00:40:13,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 00:40:13,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 00:40:13,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 00:40:13,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 00:40:13,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 00:40:13,424 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 00:40:13,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 00:40:13,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 00:40:13,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 00:40:13,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 00:40:13,775 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 00:40:13,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-03-26 00:40:13,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44917f4bf/c5fd18ada108438589c3729bcbbee344/FLAG4f4b1e755 [2021-03-26 00:40:14,361 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 00:40:14,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe014_pso.opt.i [2021-03-26 00:40:14,376 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44917f4bf/c5fd18ada108438589c3729bcbbee344/FLAG4f4b1e755 [2021-03-26 00:40:14,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44917f4bf/c5fd18ada108438589c3729bcbbee344 [2021-03-26 00:40:14,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 00:40:14,864 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 00:40:14,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:14,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 00:40:14,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 00:40:14,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:14" (1/1) ... [2021-03-26 00:40:14,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2688ea0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:14, skipping insertion in model container [2021-03-26 00:40:14,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 12:40:14" (1/1) ... [2021-03-26 00:40:14,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 00:40:14,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 00:40:15,032 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/safe014_pso.opt.i[949,962] [2021-03-26 00:40:15,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:15,224 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 00:40:15,238 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/safe014_pso.opt.i[949,962] [2021-03-26 00:40:15,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 00:40:15,345 INFO L208 MainTranslator]: Completed translation [2021-03-26 00:40:15,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15 WrapperNode [2021-03-26 00:40:15,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 00:40:15,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:15,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 00:40:15,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 00:40:15,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 00:40:15,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 00:40:15,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 00:40:15,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 00:40:15,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (1/1) ... [2021-03-26 00:40:15,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 00:40:15,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 00:40:15,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 00:40:15,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 00:40:15,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (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 00:40:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 00:40:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 00:40:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 00:40:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 00:40:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 00:40:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 00:40:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 00:40:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 00:40:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 00:40:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 00:40:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 00:40:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 00:40:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 00:40:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 00:40:15,500 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 00:40:15,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 00:40:15,839 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 00:40:15,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:15 BoogieIcfgContainer [2021-03-26 00:40:15,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 00:40:15,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 00:40:15,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 00:40:15,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 00:40:15,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 12:40:14" (1/3) ... [2021-03-26 00:40:15,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77409457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:15, skipping insertion in model container [2021-03-26 00:40:15,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 12:40:15" (2/3) ... [2021-03-26 00:40:15,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77409457 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 12:40:15, skipping insertion in model container [2021-03-26 00:40:15,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 12:40:15" (3/3) ... [2021-03-26 00:40:15,850 INFO L111 eAbstractionObserver]: Analyzing ICFG safe014_pso.opt.i [2021-03-26 00:40:15,858 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 00:40:15,862 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 00:40:15,863 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 00:40:15,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,900 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,902 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,905 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,913 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,914 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,919 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,925 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,925 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 00:40:15,928 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 00:40:15,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 00:40:15,972 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 00:40:15,973 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 00:40:15,973 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 00:40:15,973 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 00:40:15,973 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 00:40:15,973 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 00:40:15,973 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 00:40:15,973 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 00:40:15,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:40:16,038 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 00:40:16,038 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:16,043 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 00:40:16,044 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 00:40:16,053 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 00:40:16,055 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:16,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:40:16,068 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 00:40:16,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 00:40:16,095 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 00:40:16,095 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:16,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 00:40:16,097 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 00:40:17,718 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-26 00:40:17,759 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 00:40:17,759 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 00:40:17,761 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1707 [2021-03-26 00:40:17,783 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 00:40:17,783 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:17,783 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:17,784 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:17,784 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:17,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:17,791 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-26 00:40:17,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:17,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109157833] [2021-03-26 00:40:17,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:18,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:18,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:18,092 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:18,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:18,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:18,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:18,112 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 00:40:18,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109157833] [2021-03-26 00:40:18,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:18,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:18,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843163636] [2021-03-26 00:40:18,121 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:18,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:18,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:18,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:18,135 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-26 00:40:18,138 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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 00:40:18,138 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:18,138 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-26 00:40:18,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:18,250 INFO L129 PetriNetUnfolder]: 78/208 cut-off events. [2021-03-26 00:40:18,250 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:18,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 208 events. 78/208 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1017 event pairs, 4 based on Foata normal form. 23/218 useless extension candidates. Maximal degree in co-relation 358. Up to 58 conditions per place. [2021-03-26 00:40:18,256 INFO L132 encePairwiseOnDemand]: 108/116 looper letters, 12 selfloop transitions, 6 changer transitions 15/45 dead transitions. [2021-03-26 00:40:18,256 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 165 flow [2021-03-26 00:40:18,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:18,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 00:40:18,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7598522167487685 [2021-03-26 00:40:18,275 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 00:40:18,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 00:40:18,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:18,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 00:40:18,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 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 00:40:18,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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 00:40:18,298 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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 00:40:18,300 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 617 transitions. [2021-03-26 00:40:18,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 165 flow [2021-03-26 00:40:18,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:18,304 INFO L241 Difference]: Finished difference. Result has 40 places, 25 transitions, 106 flow [2021-03-26 00:40:18,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=106, PETRI_PLACES=40, PETRI_TRANSITIONS=25} [2021-03-26 00:40:18,306 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 00:40:18,306 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:18,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:40:18,307 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 25 transitions, 106 flow [2021-03-26 00:40:18,307 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 25 transitions, 106 flow [2021-03-26 00:40:18,318 INFO L129 PetriNetUnfolder]: 36/118 cut-off events. [2021-03-26 00:40:18,318 INFO L130 PetriNetUnfolder]: For 79/88 co-relation queries the response was YES. [2021-03-26 00:40:18,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 118 events. 36/118 cut-off events. For 79/88 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 512 event pairs, 11 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 289. Up to 42 conditions per place. [2021-03-26 00:40:18,320 INFO L142 LiptonReduction]: Number of co-enabled transitions 154 [2021-03-26 00:40:18,738 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:40:18,947 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 00:40:19,022 INFO L154 LiptonReduction]: Checked pairs total: 78 [2021-03-26 00:40:19,022 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:40:19,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 716 [2021-03-26 00:40:19,024 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 22 transitions, 100 flow [2021-03-26 00:40:19,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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 00:40:19,025 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,025 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 00:40:19,025 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1039221852, now seen corresponding path program 1 times [2021-03-26 00:40:19,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087888490] [2021-03-26 00:40:19,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:19,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:19,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,104 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:19,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,118 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 00:40:19,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087888490] [2021-03-26 00:40:19,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:19,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:19,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197462388] [2021-03-26 00:40:19,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:19,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:19,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:19,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:19,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 00:40:19,123 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 22 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 00:40:19,123 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:19,123 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 00:40:19,123 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:19,192 INFO L129 PetriNetUnfolder]: 39/130 cut-off events. [2021-03-26 00:40:19,192 INFO L130 PetriNetUnfolder]: For 214/284 co-relation queries the response was YES. [2021-03-26 00:40:19,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 428 conditions, 130 events. 39/130 cut-off events. For 214/284 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 569 event pairs, 1 based on Foata normal form. 14/139 useless extension candidates. Maximal degree in co-relation 413. Up to 48 conditions per place. [2021-03-26 00:40:19,198 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 11 selfloop transitions, 10 changer transitions 11/42 dead transitions. [2021-03-26 00:40:19,198 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 42 transitions, 286 flow [2021-03-26 00:40:19,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 617 transitions. [2021-03-26 00:40:19,200 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7406962785114045 [2021-03-26 00:40:19,200 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 617 transitions. [2021-03-26 00:40:19,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 617 transitions. [2021-03-26 00:40:19,200 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:19,200 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 617 transitions. [2021-03-26 00:40:19,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 88.14285714285714) internal successors, (617), 7 states have internal predecessors, (617), 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 00:40:19,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,206 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,206 INFO L185 Difference]: Start difference. First operand has 34 places, 22 transitions, 100 flow. Second operand 7 states and 617 transitions. [2021-03-26 00:40:19,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 42 transitions, 286 flow [2021-03-26 00:40:19,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 278 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:19,210 INFO L241 Difference]: Finished difference. Result has 44 places, 27 transitions, 185 flow [2021-03-26 00:40:19,210 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=185, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2021-03-26 00:40:19,210 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 13 predicate places. [2021-03-26 00:40:19,211 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:19,211 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 27 transitions, 185 flow [2021-03-26 00:40:19,212 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 27 transitions, 185 flow [2021-03-26 00:40:19,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 27 transitions, 185 flow [2021-03-26 00:40:19,224 INFO L129 PetriNetUnfolder]: 30/105 cut-off events. [2021-03-26 00:40:19,224 INFO L130 PetriNetUnfolder]: For 231/254 co-relation queries the response was YES. [2021-03-26 00:40:19,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 105 events. 30/105 cut-off events. For 231/254 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 438 event pairs, 4 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 354. Up to 40 conditions per place. [2021-03-26 00:40:19,226 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 00:40:19,240 INFO L154 LiptonReduction]: Checked pairs total: 75 [2021-03-26 00:40:19,241 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:19,241 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-26 00:40:19,242 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 185 flow [2021-03-26 00:40:19,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 00:40:19,242 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,242 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 00:40:19,243 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,243 INFO L82 PathProgramCache]: Analyzing trace with hash 595453726, now seen corresponding path program 1 times [2021-03-26 00:40:19,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106319757] [2021-03-26 00:40:19,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:19,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,287 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:19,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:19,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,304 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 00:40:19,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106319757] [2021-03-26 00:40:19,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:19,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:19,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595498413] [2021-03-26 00:40:19,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:19,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:19,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:19,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 00:40:19,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 00:40:19,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:19,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 00:40:19,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:19,365 INFO L129 PetriNetUnfolder]: 29/111 cut-off events. [2021-03-26 00:40:19,365 INFO L130 PetriNetUnfolder]: For 375/489 co-relation queries the response was YES. [2021-03-26 00:40:19,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 111 events. 29/111 cut-off events. For 375/489 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 475 event pairs, 0 based on Foata normal form. 11/120 useless extension candidates. Maximal degree in co-relation 446. Up to 40 conditions per place. [2021-03-26 00:40:19,367 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 14 selfloop transitions, 14 changer transitions 6/44 dead transitions. [2021-03-26 00:40:19,367 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 406 flow [2021-03-26 00:40:19,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:19,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 613 transitions. [2021-03-26 00:40:19,371 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7358943577430972 [2021-03-26 00:40:19,371 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 613 transitions. [2021-03-26 00:40:19,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 613 transitions. [2021-03-26 00:40:19,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:19,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 613 transitions. [2021-03-26 00:40:19,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 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 00:40:19,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,376 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,376 INFO L185 Difference]: Start difference. First operand has 41 places, 27 transitions, 185 flow. Second operand 7 states and 613 transitions. [2021-03-26 00:40:19,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 406 flow [2021-03-26 00:40:19,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 44 transitions, 384 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-26 00:40:19,383 INFO L241 Difference]: Finished difference. Result has 50 places, 34 transitions, 316 flow [2021-03-26 00:40:19,383 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=316, PETRI_PLACES=50, PETRI_TRANSITIONS=34} [2021-03-26 00:40:19,383 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 19 predicate places. [2021-03-26 00:40:19,383 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:19,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 34 transitions, 316 flow [2021-03-26 00:40:19,384 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 34 transitions, 316 flow [2021-03-26 00:40:19,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 34 transitions, 316 flow [2021-03-26 00:40:19,393 INFO L129 PetriNetUnfolder]: 24/87 cut-off events. [2021-03-26 00:40:19,394 INFO L130 PetriNetUnfolder]: For 289/347 co-relation queries the response was YES. [2021-03-26 00:40:19,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 87 events. 24/87 cut-off events. For 289/347 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 342 event pairs, 2 based on Foata normal form. 3/86 useless extension candidates. Maximal degree in co-relation 368. Up to 34 conditions per place. [2021-03-26 00:40:19,395 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-26 00:40:19,406 INFO L154 LiptonReduction]: Checked pairs total: 203 [2021-03-26 00:40:19,406 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:19,406 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-03-26 00:40:19,407 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 34 transitions, 316 flow [2021-03-26 00:40:19,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 00:40:19,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 00:40:19,408 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1709419105, now seen corresponding path program 1 times [2021-03-26 00:40:19,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039670343] [2021-03-26 00:40:19,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:19,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:19,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,479 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:19,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:19,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,491 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 00:40:19,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039670343] [2021-03-26 00:40:19,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:19,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:19,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765080364] [2021-03-26 00:40:19,492 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:19,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:19,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:19,493 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 00:40:19,494 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 34 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 00:40:19,494 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:19,494 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 00:40:19,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:19,542 INFO L129 PetriNetUnfolder]: 21/95 cut-off events. [2021-03-26 00:40:19,542 INFO L130 PetriNetUnfolder]: For 409/565 co-relation queries the response was YES. [2021-03-26 00:40:19,543 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 95 events. 21/95 cut-off events. For 409/565 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 395 event pairs, 0 based on Foata normal form. 17/111 useless extension candidates. Maximal degree in co-relation 435. Up to 32 conditions per place. [2021-03-26 00:40:19,544 INFO L132 encePairwiseOnDemand]: 111/119 looper letters, 14 selfloop transitions, 18 changer transitions 5/47 dead transitions. [2021-03-26 00:40:19,544 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 543 flow [2021-03-26 00:40:19,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:19,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 610 transitions. [2021-03-26 00:40:19,546 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7322929171668667 [2021-03-26 00:40:19,546 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 610 transitions. [2021-03-26 00:40:19,546 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 610 transitions. [2021-03-26 00:40:19,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:19,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 610 transitions. [2021-03-26 00:40:19,548 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 00:40:19,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,549 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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 00:40:19,550 INFO L185 Difference]: Start difference. First operand has 47 places, 34 transitions, 316 flow. Second operand 7 states and 610 transitions. [2021-03-26 00:40:19,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 543 flow [2021-03-26 00:40:19,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 47 transitions, 509 flow, removed 14 selfloop flow, removed 6 redundant places. [2021-03-26 00:40:19,553 INFO L241 Difference]: Finished difference. Result has 53 places, 39 transitions, 443 flow [2021-03-26 00:40:19,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=443, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2021-03-26 00:40:19,554 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 22 predicate places. [2021-03-26 00:40:19,554 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:19,554 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 39 transitions, 443 flow [2021-03-26 00:40:19,554 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 39 transitions, 443 flow [2021-03-26 00:40:19,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 39 transitions, 443 flow [2021-03-26 00:40:19,562 INFO L129 PetriNetUnfolder]: 19/80 cut-off events. [2021-03-26 00:40:19,562 INFO L130 PetriNetUnfolder]: For 372/454 co-relation queries the response was YES. [2021-03-26 00:40:19,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 80 events. 19/80 cut-off events. For 372/454 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 320 event pairs, 1 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 378. Up to 29 conditions per place. [2021-03-26 00:40:19,563 INFO L142 LiptonReduction]: Number of co-enabled transitions 232 [2021-03-26 00:40:19,641 INFO L154 LiptonReduction]: Checked pairs total: 477 [2021-03-26 00:40:19,641 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 00:40:19,641 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 87 [2021-03-26 00:40:19,642 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 38 transitions, 441 flow [2021-03-26 00:40:19,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 00:40:19,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,643 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 00:40:19,643 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,644 INFO L82 PathProgramCache]: Analyzing trace with hash 682039165, now seen corresponding path program 1 times [2021-03-26 00:40:19,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140680692] [2021-03-26 00:40:19,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:19,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,722 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 00:40:19,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140680692] [2021-03-26 00:40:19,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:19,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:19,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105567761] [2021-03-26 00:40:19,722 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:19,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:19,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:19,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:19,727 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 120 [2021-03-26 00:40:19,728 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 38 transitions, 441 flow. Second operand has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,728 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:19,728 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 120 [2021-03-26 00:40:19,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:19,759 INFO L129 PetriNetUnfolder]: 24/96 cut-off events. [2021-03-26 00:40:19,759 INFO L130 PetriNetUnfolder]: For 783/883 co-relation queries the response was YES. [2021-03-26 00:40:19,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 529 conditions, 96 events. 24/96 cut-off events. For 783/883 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 388 event pairs, 0 based on Foata normal form. 7/103 useless extension candidates. Maximal degree in co-relation 501. Up to 36 conditions per place. [2021-03-26 00:40:19,760 INFO L132 encePairwiseOnDemand]: 116/120 looper letters, 1 selfloop transitions, 4 changer transitions 12/40 dead transitions. [2021-03-26 00:40:19,760 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 40 transitions, 485 flow [2021-03-26 00:40:19,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:40:19,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:40:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2021-03-26 00:40:19,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.78125 [2021-03-26 00:40:19,762 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2021-03-26 00:40:19,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2021-03-26 00:40:19,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:19,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2021-03-26 00:40:19,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 93.75) internal successors, (375), 4 states have internal predecessors, (375), 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 00:40:19,764 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,764 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,764 INFO L185 Difference]: Start difference. First operand has 49 places, 38 transitions, 441 flow. Second operand 4 states and 375 transitions. [2021-03-26 00:40:19,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 40 transitions, 485 flow [2021-03-26 00:40:19,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 40 transitions, 448 flow, removed 14 selfloop flow, removed 5 redundant places. [2021-03-26 00:40:19,768 INFO L241 Difference]: Finished difference. Result has 49 places, 28 transitions, 279 flow [2021-03-26 00:40:19,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=49, PETRI_TRANSITIONS=28} [2021-03-26 00:40:19,768 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:40:19,769 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:19,769 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 28 transitions, 279 flow [2021-03-26 00:40:19,769 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 28 transitions, 279 flow [2021-03-26 00:40:19,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 28 transitions, 279 flow [2021-03-26 00:40:19,773 INFO L129 PetriNetUnfolder]: 7/42 cut-off events. [2021-03-26 00:40:19,773 INFO L130 PetriNetUnfolder]: For 170/178 co-relation queries the response was YES. [2021-03-26 00:40:19,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 42 events. 7/42 cut-off events. For 170/178 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 196. Up to 14 conditions per place. [2021-03-26 00:40:19,774 INFO L142 LiptonReduction]: Number of co-enabled transitions 106 [2021-03-26 00:40:19,840 INFO L154 LiptonReduction]: Checked pairs total: 211 [2021-03-26 00:40:19,840 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:40:19,840 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 00:40:19,842 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 27 transitions, 285 flow [2021-03-26 00:40:19,842 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 92.8) internal successors, (464), 5 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,842 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,842 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,843 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 00:40:19,843 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,843 INFO L82 PathProgramCache]: Analyzing trace with hash -760861359, now seen corresponding path program 1 times [2021-03-26 00:40:19,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202234586] [2021-03-26 00:40:19,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:19,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:19,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:19,900 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 00:40:19,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202234586] [2021-03-26 00:40:19,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:19,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 00:40:19,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993050161] [2021-03-26 00:40:19,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 00:40:19,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:19,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 00:40:19,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 00:40:19,902 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-03-26 00:40:19,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 27 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:19,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-03-26 00:40:19,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:19,940 INFO L129 PetriNetUnfolder]: 58/140 cut-off events. [2021-03-26 00:40:19,940 INFO L130 PetriNetUnfolder]: For 851/886 co-relation queries the response was YES. [2021-03-26 00:40:19,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 506 conditions, 140 events. 58/140 cut-off events. For 851/886 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 595 event pairs, 21 based on Foata normal form. 16/148 useless extension candidates. Maximal degree in co-relation 478. Up to 85 conditions per place. [2021-03-26 00:40:19,942 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 5 selfloop transitions, 6 changer transitions 5/37 dead transitions. [2021-03-26 00:40:19,942 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 37 transitions, 337 flow [2021-03-26 00:40:19,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 00:40:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 00:40:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 468 transitions. [2021-03-26 00:40:19,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7609756097560976 [2021-03-26 00:40:19,944 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 468 transitions. [2021-03-26 00:40:19,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 468 transitions. [2021-03-26 00:40:19,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:19,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 468 transitions. [2021-03-26 00:40:19,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 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 00:40:19,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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 00:40:19,947 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 123.0) internal successors, (738), 6 states have internal predecessors, (738), 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 00:40:19,948 INFO L185 Difference]: Start difference. First operand has 48 places, 27 transitions, 285 flow. Second operand 5 states and 468 transitions. [2021-03-26 00:40:19,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 37 transitions, 337 flow [2021-03-26 00:40:19,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 304 flow, removed 5 selfloop flow, removed 6 redundant places. [2021-03-26 00:40:19,952 INFO L241 Difference]: Finished difference. Result has 49 places, 32 transitions, 298 flow [2021-03-26 00:40:19,952 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=49, PETRI_TRANSITIONS=32} [2021-03-26 00:40:19,952 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:40:19,952 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:19,952 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 32 transitions, 298 flow [2021-03-26 00:40:19,952 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 32 transitions, 298 flow [2021-03-26 00:40:19,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 32 transitions, 298 flow [2021-03-26 00:40:19,962 INFO L129 PetriNetUnfolder]: 35/114 cut-off events. [2021-03-26 00:40:19,962 INFO L130 PetriNetUnfolder]: For 341/376 co-relation queries the response was YES. [2021-03-26 00:40:19,963 INFO L84 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 114 events. 35/114 cut-off events. For 341/376 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 541 event pairs, 18 based on Foata normal form. 1/105 useless extension candidates. Maximal degree in co-relation 436. Up to 69 conditions per place. [2021-03-26 00:40:19,964 INFO L142 LiptonReduction]: Number of co-enabled transitions 152 [2021-03-26 00:40:19,966 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:19,966 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:19,966 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 00:40:19,970 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 32 transitions, 298 flow [2021-03-26 00:40:19,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 90.75) internal successors, (363), 4 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:19,971 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:19,971 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:19,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 00:40:19,971 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:19,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:19,972 INFO L82 PathProgramCache]: Analyzing trace with hash -734238776, now seen corresponding path program 1 times [2021-03-26 00:40:19,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:19,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15988913] [2021-03-26 00:40:19,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:20,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,027 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:40:20,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:40:20,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,037 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 00:40:20,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15988913] [2021-03-26 00:40:20,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:20,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:20,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802283290] [2021-03-26 00:40:20,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:20,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:20,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:20,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:20,042 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-03-26 00:40:20,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 32 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:20,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:20,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-03-26 00:40:20,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:20,095 INFO L129 PetriNetUnfolder]: 40/121 cut-off events. [2021-03-26 00:40:20,095 INFO L130 PetriNetUnfolder]: For 506/664 co-relation queries the response was YES. [2021-03-26 00:40:20,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 121 events. 40/121 cut-off events. For 506/664 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 539 event pairs, 3 based on Foata normal form. 46/160 useless extension candidates. Maximal degree in co-relation 510. Up to 69 conditions per place. [2021-03-26 00:40:20,096 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 5 selfloop transitions, 12 changer transitions 4/42 dead transitions. [2021-03-26 00:40:20,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 42 transitions, 392 flow [2021-03-26 00:40:20,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 00:40:20,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 00:40:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 653 transitions. [2021-03-26 00:40:20,098 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7584204413472706 [2021-03-26 00:40:20,098 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 653 transitions. [2021-03-26 00:40:20,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 653 transitions. [2021-03-26 00:40:20,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:20,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 653 transitions. [2021-03-26 00:40:20,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.28571428571429) internal successors, (653), 7 states have internal predecessors, (653), 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 00:40:20,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 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 00:40:20,102 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 123.0) internal successors, (984), 8 states have internal predecessors, (984), 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 00:40:20,102 INFO L185 Difference]: Start difference. First operand has 49 places, 32 transitions, 298 flow. Second operand 7 states and 653 transitions. [2021-03-26 00:40:20,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 42 transitions, 392 flow [2021-03-26 00:40:20,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 42 transitions, 392 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 00:40:20,105 INFO L241 Difference]: Finished difference. Result has 58 places, 38 transitions, 379 flow [2021-03-26 00:40:20,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=379, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2021-03-26 00:40:20,105 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 27 predicate places. [2021-03-26 00:40:20,105 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:20,105 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 38 transitions, 379 flow [2021-03-26 00:40:20,106 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 38 transitions, 379 flow [2021-03-26 00:40:20,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 38 transitions, 379 flow [2021-03-26 00:40:20,127 INFO L129 PetriNetUnfolder]: 25/103 cut-off events. [2021-03-26 00:40:20,127 INFO L130 PetriNetUnfolder]: For 451/535 co-relation queries the response was YES. [2021-03-26 00:40:20,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 103 events. 25/103 cut-off events. For 451/535 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 472 event pairs, 1 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 494. Up to 57 conditions per place. [2021-03-26 00:40:20,129 INFO L142 LiptonReduction]: Number of co-enabled transitions 168 [2021-03-26 00:40:20,132 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:20,132 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:20,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-26 00:40:20,133 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 379 flow [2021-03-26 00:40:20,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 90.8) internal successors, (454), 5 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:20,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:20,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:20,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 00:40:20,134 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1610380041, now seen corresponding path program 1 times [2021-03-26 00:40:20,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:20,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014442241] [2021-03-26 00:40:20,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:20,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,195 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-03-26 00:40:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 00:40:20,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,207 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 00:40:20,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014442241] [2021-03-26 00:40:20,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:20,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:20,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003707406] [2021-03-26 00:40:20,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 00:40:20,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:20,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 00:40:20,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 00:40:20,209 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 123 [2021-03-26 00:40:20,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:20,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:20,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 123 [2021-03-26 00:40:20,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:20,276 INFO L129 PetriNetUnfolder]: 25/100 cut-off events. [2021-03-26 00:40:20,276 INFO L130 PetriNetUnfolder]: For 606/864 co-relation queries the response was YES. [2021-03-26 00:40:20,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 100 events. 25/100 cut-off events. For 606/864 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 449 event pairs, 0 based on Foata normal form. 67/161 useless extension candidates. Maximal degree in co-relation 525. Up to 56 conditions per place. [2021-03-26 00:40:20,277 INFO L132 encePairwiseOnDemand]: 117/123 looper letters, 2 selfloop transitions, 16 changer transitions 8/42 dead transitions. [2021-03-26 00:40:20,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 42 transitions, 451 flow [2021-03-26 00:40:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 00:40:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 00:40:20,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 833 transitions. [2021-03-26 00:40:20,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7524841915085817 [2021-03-26 00:40:20,280 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 833 transitions. [2021-03-26 00:40:20,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 833 transitions. [2021-03-26 00:40:20,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:20,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 833 transitions. [2021-03-26 00:40:20,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.55555555555556) internal successors, (833), 9 states have internal predecessors, (833), 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 00:40:20,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 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 00:40:20,285 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 123.0) internal successors, (1230), 10 states have internal predecessors, (1230), 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 00:40:20,285 INFO L185 Difference]: Start difference. First operand has 58 places, 38 transitions, 379 flow. Second operand 9 states and 833 transitions. [2021-03-26 00:40:20,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 42 transitions, 451 flow [2021-03-26 00:40:20,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 42 transitions, 424 flow, removed 10 selfloop flow, removed 2 redundant places. [2021-03-26 00:40:20,291 INFO L241 Difference]: Finished difference. Result has 67 places, 34 transitions, 342 flow [2021-03-26 00:40:20,292 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=123, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=342, PETRI_PLACES=67, PETRI_TRANSITIONS=34} [2021-03-26 00:40:20,292 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 36 predicate places. [2021-03-26 00:40:20,292 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:20,292 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 34 transitions, 342 flow [2021-03-26 00:40:20,292 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 34 transitions, 342 flow [2021-03-26 00:40:20,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 34 transitions, 342 flow [2021-03-26 00:40:20,300 INFO L129 PetriNetUnfolder]: 12/64 cut-off events. [2021-03-26 00:40:20,300 INFO L130 PetriNetUnfolder]: For 274/289 co-relation queries the response was YES. [2021-03-26 00:40:20,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 64 events. 12/64 cut-off events. For 274/289 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 254 event pairs, 0 based on Foata normal form. 2/64 useless extension candidates. Maximal degree in co-relation 303. Up to 24 conditions per place. [2021-03-26 00:40:20,301 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 00:40:20,407 INFO L154 LiptonReduction]: Checked pairs total: 32 [2021-03-26 00:40:20,407 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 00:40:20,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 115 [2021-03-26 00:40:20,408 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 30 transitions, 329 flow [2021-03-26 00:40:20,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:20,409 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:20,409 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:20,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 00:40:20,409 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:20,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:20,410 INFO L82 PathProgramCache]: Analyzing trace with hash -2179897, now seen corresponding path program 1 times [2021-03-26 00:40:20,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:20,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503005865] [2021-03-26 00:40:20,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:20,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 00:40:20,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,455 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:20,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:20,467 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 00:40:20,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503005865] [2021-03-26 00:40:20,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:20,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 00:40:20,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513324964] [2021-03-26 00:40:20,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:20,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:20,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:20,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:20,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 125 [2021-03-26 00:40:20,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 30 transitions, 329 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 00:40:20,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:20,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 125 [2021-03-26 00:40:20,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:20,501 INFO L129 PetriNetUnfolder]: 13/50 cut-off events. [2021-03-26 00:40:20,501 INFO L130 PetriNetUnfolder]: For 490/501 co-relation queries the response was YES. [2021-03-26 00:40:20,502 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 50 events. 13/50 cut-off events. For 490/501 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 138 event pairs, 0 based on Foata normal form. 6/54 useless extension candidates. Maximal degree in co-relation 298. Up to 19 conditions per place. [2021-03-26 00:40:20,502 INFO L132 encePairwiseOnDemand]: 117/125 looper letters, 5 selfloop transitions, 8 changer transitions 5/31 dead transitions. [2021-03-26 00:40:20,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 31 transitions, 401 flow [2021-03-26 00:40:20,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 00:40:20,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 00:40:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 545 transitions. [2021-03-26 00:40:20,504 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7266666666666667 [2021-03-26 00:40:20,504 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 545 transitions. [2021-03-26 00:40:20,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 545 transitions. [2021-03-26 00:40:20,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:20,504 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 545 transitions. [2021-03-26 00:40:20,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 00:40:20,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 00:40:20,507 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 125.0) internal successors, (875), 7 states have internal predecessors, (875), 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 00:40:20,507 INFO L185 Difference]: Start difference. First operand has 65 places, 30 transitions, 329 flow. Second operand 6 states and 545 transitions. [2021-03-26 00:40:20,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 31 transitions, 401 flow [2021-03-26 00:40:20,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 31 transitions, 308 flow, removed 18 selfloop flow, removed 15 redundant places. [2021-03-26 00:40:20,510 INFO L241 Difference]: Finished difference. Result has 49 places, 26 transitions, 227 flow [2021-03-26 00:40:20,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=49, PETRI_TRANSITIONS=26} [2021-03-26 00:40:20,510 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 18 predicate places. [2021-03-26 00:40:20,511 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:20,511 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 26 transitions, 227 flow [2021-03-26 00:40:20,511 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 26 transitions, 227 flow [2021-03-26 00:40:20,512 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 26 transitions, 227 flow [2021-03-26 00:40:20,515 INFO L129 PetriNetUnfolder]: 9/37 cut-off events. [2021-03-26 00:40:20,515 INFO L130 PetriNetUnfolder]: For 118/121 co-relation queries the response was YES. [2021-03-26 00:40:20,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 37 events. 9/37 cut-off events. For 118/121 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 84 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 154. Up to 12 conditions per place. [2021-03-26 00:40:20,516 INFO L142 LiptonReduction]: Number of co-enabled transitions 34 [2021-03-26 00:40:20,606 INFO L154 LiptonReduction]: Checked pairs total: 17 [2021-03-26 00:40:20,606 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 00:40:20,606 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-03-26 00:40:20,607 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 25 transitions, 246 flow [2021-03-26 00:40:20,607 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 00:40:20,607 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 00:40:20,607 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 00:40:20,607 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 00:40:20,607 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 00:40:20,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 00:40:20,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1724714198, now seen corresponding path program 1 times [2021-03-26 00:40:20,608 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 00:40:20,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579733550] [2021-03-26 00:40:20,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 00:40:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 00:40:20,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 00:40:20,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 00:40:20,651 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 00:40:20,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 00:40:20,662 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 00:40:20,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579733550] [2021-03-26 00:40:20,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 00:40:20,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 00:40:20,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530731998] [2021-03-26 00:40:20,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 00:40:20,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 00:40:20,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 00:40:20,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-26 00:40:20,664 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 128 [2021-03-26 00:40:20,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 25 transitions, 246 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 00:40:20,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 00:40:20,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 128 [2021-03-26 00:40:20,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 00:40:20,684 INFO L129 PetriNetUnfolder]: 10/39 cut-off events. [2021-03-26 00:40:20,685 INFO L130 PetriNetUnfolder]: For 289/293 co-relation queries the response was YES. [2021-03-26 00:40:20,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 39 events. 10/39 cut-off events. For 289/293 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 93 event pairs, 0 based on Foata normal form. 5/44 useless extension candidates. Maximal degree in co-relation 234. Up to 19 conditions per place. [2021-03-26 00:40:20,685 INFO L132 encePairwiseOnDemand]: 125/128 looper letters, 0 selfloop transitions, 0 changer transitions 24/24 dead transitions. [2021-03-26 00:40:20,685 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 24 transitions, 256 flow [2021-03-26 00:40:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 00:40:20,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 00:40:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2021-03-26 00:40:20,686 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2021-03-26 00:40:20,686 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 364 transitions. [2021-03-26 00:40:20,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 364 transitions. [2021-03-26 00:40:20,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 00:40:20,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 364 transitions. [2021-03-26 00:40:20,688 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 00:40:20,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 00:40:20,689 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 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 00:40:20,689 INFO L185 Difference]: Start difference. First operand has 46 places, 25 transitions, 246 flow. Second operand 4 states and 364 transitions. [2021-03-26 00:40:20,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 24 transitions, 256 flow [2021-03-26 00:40:20,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 24 transitions, 207 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-03-26 00:40:20,690 INFO L241 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2021-03-26 00:40:20,691 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2021-03-26 00:40:20,691 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2021-03-26 00:40:20,691 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 00:40:20,691 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 0 transitions, 0 flow [2021-03-26 00:40:20,691 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 0 transitions, 0 flow [2021-03-26 00:40:20,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:20,692 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 00:40:20,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 00:40:20,692 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 00:40:20,692 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 00:40:20,692 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 00:40:20,692 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 00:40:20,692 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 00:40:20,693 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 00:40:20,693 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 00:40:20,693 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 00:40:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 12:40:20 BasicIcfg [2021-03-26 00:40:20,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 00:40:20,697 INFO L168 Benchmark]: Toolchain (without parser) took 5832.36 ms. Allocated memory was 255.9 MB in the beginning and 446.7 MB in the end (delta: 190.8 MB). Free memory was 235.9 MB in the beginning and 311.2 MB in the end (delta: -75.4 MB). Peak memory consumption was 114.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,697 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 00:40:20,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.76 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 235.9 MB in the beginning and 333.3 MB in the end (delta: -97.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 371.2 MB. Free memory was 333.3 MB in the beginning and 331.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,698 INFO L168 Benchmark]: Boogie Preprocessor took 36.86 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 330.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,698 INFO L168 Benchmark]: RCFGBuilder took 410.10 ms. Allocated memory is still 371.2 MB. Free memory was 330.4 MB in the beginning and 308.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,698 INFO L168 Benchmark]: TraceAbstraction took 4851.16 ms. Allocated memory was 371.2 MB in the beginning and 446.7 MB in the end (delta: 75.5 MB). Free memory was 308.1 MB in the beginning and 311.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 74.4 MB. Max. memory is 16.0 GB. [2021-03-26 00:40:20,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 480.76 ms. Allocated memory was 255.9 MB in the beginning and 371.2 MB in the end (delta: 115.3 MB). Free memory was 235.9 MB in the beginning and 333.3 MB in the end (delta: -97.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 371.2 MB. Free memory was 333.3 MB in the beginning and 331.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.86 ms. Allocated memory is still 371.2 MB. Free memory was 331.8 MB in the beginning and 330.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 410.10 ms. Allocated memory is still 371.2 MB. Free memory was 330.4 MB in the beginning and 308.1 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4851.16 ms. Allocated memory was 371.2 MB in the beginning and 446.7 MB in the end (delta: 75.5 MB). Free memory was 308.1 MB in the beginning and 311.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 74.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1691.6ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 680, positive: 633, positive conditional: 633, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 572, positive: 547, positive conditional: 0, positive unconditional: 547, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 572, positive: 547, positive conditional: 0, positive unconditional: 547, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 572, positive: 547, positive conditional: 0, positive unconditional: 547, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 85, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 85, negative conditional: 0, negative unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 680, positive: 86, positive conditional: 86, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 572, unknown conditional: 572, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 19, Positive conditional cache size: 19, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 715.5ms, 40 PlacesBefore, 34 PlacesAfterwards, 25 TransitionsBefore, 22 TransitionsAfterwards, 154 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 78 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 10, positive conditional: 1, positive unconditional: 9, 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: 12, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 29, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.0ms, 44 PlacesBefore, 41 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 75 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 12, negative conditional: 4, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 9, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 31, Positive conditional cache size: 31, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3ms, 50 PlacesBefore, 47 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 203 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 11, positive conditional: 11, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 33, Positive conditional cache size: 33, Positive unconditional cache size: 0, Negative cache size: 16, Negative conditional cache size: 16, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 86.9ms, 53 PlacesBefore, 49 PlacesAfterwards, 39 TransitionsBefore, 38 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 477 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 29, negative conditional: 29, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 30, positive conditional: 9, positive unconditional: 21, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 30, positive conditional: 9, positive unconditional: 21, 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: 32, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 106, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 27, negative conditional: 27, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 55, Positive conditional cache size: 55, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 71.4ms, 49 PlacesBefore, 48 PlacesAfterwards, 28 TransitionsBefore, 27 TransitionsAfterwards, 106 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 211 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 51, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 11, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 11, positive unconditional: 3, 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: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 51, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 18, negative conditional: 18, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 29, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.9ms, 49 PlacesBefore, 49 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 152 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 29, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 26.3ms, 58 PlacesBefore, 58 PlacesAfterwards, 38 TransitionsBefore, 38 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 29, Positive conditional cache size: 29, Positive unconditional cache size: 0, Negative cache size: 6, Negative conditional cache size: 6, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 114.9ms, 67 PlacesBefore, 65 PlacesAfterwards, 34 TransitionsBefore, 30 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 32 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, positive: 32, positive conditional: 32, 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: 32, positive: 32, positive conditional: 0, positive unconditional: 32, 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: 32, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 32, unknown conditional: 32, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 20, Positive cache size: 17, Positive conditional cache size: 17, Positive unconditional cache size: 0, Negative cache size: 3, Negative conditional cache size: 3, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 95.3ms, 49 PlacesBefore, 46 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 17 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 17, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 3, Positive conditional cache size: 3, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 39 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 3, Positive conditional cache size: 3, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 2, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 4725.4ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 716.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1800.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 72 SDtfs, 75 SDslu, 83 SDs, 0 SdLazy, 194 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 244.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=443occurred in iteration=4, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.4ms SsaConstructionTime, 217.2ms SatisfiabilityAnalysisTime, 579.4ms InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 649 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...