/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/thin000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:49:42,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:49:42,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:49:42,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:49:42,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:49:42,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:49:42,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:49:42,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:49:42,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:49:42,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:49:42,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:49:42,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:49:42,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:49:42,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:49:42,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:49:42,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:49:42,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:49:42,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:49:42,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:49:42,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:49:42,432 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 [2021-04-29 00:49:42,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:49:42,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:49:42,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:49:42,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:49:42,462 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:49:42,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:49:42,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:49:42,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:49:42,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:49:42,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:49:42,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:49:42,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:49:42,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:49:42,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:49:42,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:49:42,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:49:42,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:49:42,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:49:42,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:49:42,466 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:49:42,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:49:42,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:49:42,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:49:42,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:49:42,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:49:42,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:49:42,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:49:42,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:49:42,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:49:42,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:49:42,469 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:49:42,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:49:42,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:49:42,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:49:42,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:49:42,851 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:49:42,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_pso.oepc.i [2021-04-29 00:49:42,945 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e85447b/cc48bf7413244fc098a6c2282591f09c/FLAG21bbdbf0f [2021-04-29 00:49:43,739 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:49:43,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_pso.oepc.i [2021-04-29 00:49:43,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e85447b/cc48bf7413244fc098a6c2282591f09c/FLAG21bbdbf0f [2021-04-29 00:49:44,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67e85447b/cc48bf7413244fc098a6c2282591f09c [2021-04-29 00:49:44,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:49:44,093 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:49:44,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:49:44,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:49:44,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:49:44,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc721a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44, skipping insertion in model container [2021-04-29 00:49:44,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:49:44,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:49:44,319 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/thin000_pso.oepc.i[950,963] [2021-04-29 00:49:44,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:49:44,635 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:49:44,657 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/thin000_pso.oepc.i[950,963] [2021-04-29 00:49:44,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:49:44,852 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:49:44,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44 WrapperNode [2021-04-29 00:49:44,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:49:44,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:49:44,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:49:44,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:49:44,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:49:44,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:49:44,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:49:44,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:49:44,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,966 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (1/1) ... [2021-04-29 00:49:44,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:49:44,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:49:44,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:49:44,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:49:44,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (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 [2021-04-29 00:49:45,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:49:45,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:49:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:49:45,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:49:45,107 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:49:45,107 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:49:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:49:45,109 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:49:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:49:45,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:49:45,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:49:45,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:49:45,112 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:49:45,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:49:45,655 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:49:45,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:49:45 BoogieIcfgContainer [2021-04-29 00:49:45,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:49:45,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:49:45,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:49:45,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:49:45,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:49:44" (1/3) ... [2021-04-29 00:49:45,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2422bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:49:45, skipping insertion in model container [2021-04-29 00:49:45,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:49:44" (2/3) ... [2021-04-29 00:49:45,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2422bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:49:45, skipping insertion in model container [2021-04-29 00:49:45,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:49:45" (3/3) ... [2021-04-29 00:49:45,666 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_pso.oepc.i [2021-04-29 00:49:45,673 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:49:45,679 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:49:45,680 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:49:45,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,714 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,715 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,715 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,716 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,717 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,718 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,722 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,723 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,728 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,729 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,729 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:49:45,732 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:49:45,758 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:49:45,788 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:49:45,788 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:49:45,788 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:49:45,788 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:49:45,789 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:49:45,789 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:49:45,789 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:49:45,789 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:49:45,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:49:45,846 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:49:45,846 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:45,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:49:45,850 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:49:45,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:49:45,858 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:45,877 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:49:45,881 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:49:45,883 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:49:45,905 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:49:45,905 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:45,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:49:45,908 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:49:50,024 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:50,462 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:50,635 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:49:50,785 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:49:50,958 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:49:51,129 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:49:51,291 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:52,582 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:52,749 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:52,925 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:53,111 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:53,303 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:49:53,492 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:49:55,141 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:55,378 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:55,591 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:55,801 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:49:56,001 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:56,192 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:49:56,377 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:56,539 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:56,812 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:57,128 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:49:57,429 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:57,705 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:49:57,954 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:58,181 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:58,423 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:58,645 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:49:58,830 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:58,992 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:49:59,279 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:49:59,358 INFO L158 LiptonReduction]: Checked pairs total: 4326 [2021-04-29 00:49:59,358 INFO L160 LiptonReduction]: Total number of compositions: 110 [2021-04-29 00:49:59,363 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13507 [2021-04-29 00:49:59,385 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:49:59,386 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:59,386 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:59,387 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:49:59,387 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:59,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash -405816546, now seen corresponding path program 1 times [2021-04-29 00:49:59,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:59,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303501162] [2021-04-29 00:49:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:49:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:49:59,688 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:49:59,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:49:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:49:59,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303501162] [2021-04-29 00:49:59,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:49:59,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:49:59,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351743754] [2021-04-29 00:49:59,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:49:59,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:49:59,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:49:59,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:49:59,757 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:49:59,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-04-29 00:49:59,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:49:59,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:49:59,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:49:59,888 INFO L129 PetriNetUnfolder]: 25/143 cut-off events. [2021-04-29 00:49:59,888 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:59,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 143 events. 25/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 761 event pairs, 7 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 50 conditions per place. [2021-04-29 00:49:59,891 INFO L132 encePairwiseOnDemand]: 153/171 looper letters, 3 selfloop transitions, 3 changer transitions 42/73 dead transitions. [2021-04-29 00:49:59,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 212 flow [2021-04-29 00:49:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:49:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:49:59,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2021-04-29 00:49:59,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6471734892787524 [2021-04-29 00:49:59,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2021-04-29 00:49:59,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2021-04-29 00:49:59,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:49:59,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2021-04-29 00:49:59,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2021-04-29 00:49:59,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-04-29 00:49:59,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-04-29 00:49:59,933 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 3 states and 332 transitions. [2021-04-29 00:49:59,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 212 flow [2021-04-29 00:49:59,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:49:59,940 INFO L241 Difference]: Finished difference. Result has 74 places, 31 transitions, 81 flow [2021-04-29 00:49:59,942 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=74, PETRI_TRANSITIONS=31} [2021-04-29 00:49:59,943 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-04-29 00:49:59,943 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:49:59,944 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-29 00:49:59,944 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-29 00:49:59,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-29 00:49:59,951 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-04-29 00:49:59,951 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:49:59,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 159 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-04-29 00:49:59,953 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-29 00:49:59,977 INFO L158 LiptonReduction]: Checked pairs total: 254 [2021-04-29 00:49:59,977 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:49:59,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-29 00:49:59,979 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-29 00:49:59,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-04-29 00:49:59,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:49:59,980 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:49:59,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:49:59,980 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:49:59,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:49:59,981 INFO L82 PathProgramCache]: Analyzing trace with hash 290793743, now seen corresponding path program 1 times [2021-04-29 00:49:59,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:49:59,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519241105] [2021-04-29 00:49:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:00,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,074 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:00,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:50:00,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519241105] [2021-04-29 00:50:00,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:00,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:50:00,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843584731] [2021-04-29 00:50:00,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:50:00,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:00,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:50:00,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:50:00,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:00,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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) [2021-04-29 00:50:00,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:00,088 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:00,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:00,149 INFO L129 PetriNetUnfolder]: 4/65 cut-off events. [2021-04-29 00:50:00,149 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-04-29 00:50:00,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 65 events. 4/65 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 286 event pairs, 0 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2021-04-29 00:50:00,154 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 4 selfloop transitions, 6 changer transitions 1/34 dead transitions. [2021-04-29 00:50:00,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 111 flow [2021-04-29 00:50:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:50:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:50:00,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-04-29 00:50:00,164 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2021-04-29 00:50:00,164 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-04-29 00:50:00,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-04-29 00:50:00,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:00,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-04-29 00:50:00,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:00,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-04-29 00:50:00,175 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-04-29 00:50:00,176 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 5 states and 486 transitions. [2021-04-29 00:50:00,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 111 flow [2021-04-29 00:50:00,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:50:00,178 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:00,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-04-29 00:50:00,179 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2021-04-29 00:50:00,179 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:00,179 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:00,181 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-29 00:50:00,182 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 110 flow [2021-04-29 00:50:00,191 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-29 00:50:00,191 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-29 00:50:00,192 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 58 events. 1/58 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 241 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2021-04-29 00:50:00,193 INFO L146 LiptonReduction]: Number of co-enabled transitions 466 [2021-04-29 00:50:00,204 INFO L158 LiptonReduction]: Checked pairs total: 141 [2021-04-29 00:50:00,204 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:00,204 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-29 00:50:00,212 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 110 flow [2021-04-29 00:50:00,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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) [2021-04-29 00:50:00,213 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:00,213 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:00,213 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:50:00,213 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:00,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:00,214 INFO L82 PathProgramCache]: Analyzing trace with hash 304575444, now seen corresponding path program 1 times [2021-04-29 00:50:00,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:00,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212623911] [2021-04-29 00:50:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:00,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,334 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:00,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:00,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:50:00,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212623911] [2021-04-29 00:50:00,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:00,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:50:00,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918030638] [2021-04-29 00:50:00,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:50:00,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:00,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:50:00,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:50:00,354 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:50:00,354 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:00,355 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:00,355 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:50:00,355 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:00,387 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-04-29 00:50:00,387 INFO L130 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2021-04-29 00:50:00,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 43 events. 1/43 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 166 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 70. Up to 7 conditions per place. [2021-04-29 00:50:00,388 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2021-04-29 00:50:00,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 124 flow [2021-04-29 00:50:00,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:50:00,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:50:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-04-29 00:50:00,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2021-04-29 00:50:00,391 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-04-29 00:50:00,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-04-29 00:50:00,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:00,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-04-29 00:50:00,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2021-04-29 00:50:00,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-04-29 00:50:00,395 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 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) [2021-04-29 00:50:00,395 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 110 flow. Second operand 3 states and 306 transitions. [2021-04-29 00:50:00,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 124 flow [2021-04-29 00:50:00,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:50:00,400 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:00,400 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-04-29 00:50:00,400 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2021-04-29 00:50:00,400 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:00,401 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:00,403 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-29 00:50:00,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 29 transitions, 103 flow [2021-04-29 00:50:00,410 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-04-29 00:50:00,411 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-29 00:50:00,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 33 events. 1/33 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 118 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2021-04-29 00:50:00,412 INFO L146 LiptonReduction]: Number of co-enabled transitions 370 [2021-04-29 00:50:00,418 INFO L158 LiptonReduction]: Checked pairs total: 132 [2021-04-29 00:50:00,418 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:00,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-29 00:50:00,419 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 103 flow [2021-04-29 00:50:00,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:50:00,420 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:00,420 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:00,420 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:50:00,421 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:00,421 INFO L82 PathProgramCache]: Analyzing trace with hash 852276573, now seen corresponding path program 1 times [2021-04-29 00:50:00,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:00,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672101959] [2021-04-29 00:50:00,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:00,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,519 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:00,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:50:00,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672101959] [2021-04-29 00:50:00,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:00,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:50:00,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943980231] [2021-04-29 00:50:00,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:50:00,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:00,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:50:00,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:50:00,531 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-29 00:50:00,532 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-29 00:50:00,532 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:00,532 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-29 00:50:00,532 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:00,560 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-04-29 00:50:00,561 INFO L130 PetriNetUnfolder]: For 37/39 co-relation queries the response was YES. [2021-04-29 00:50:00,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 37 events. 0/37 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 125 event pairs, 0 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-29 00:50:00,561 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 2 selfloop transitions, 3 changer transitions 13/29 dead transitions. [2021-04-29 00:50:00,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 117 flow [2021-04-29 00:50:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:50:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:50:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-04-29 00:50:00,566 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5672514619883041 [2021-04-29 00:50:00,566 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-04-29 00:50:00,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-04-29 00:50:00,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:00,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-04-29 00:50:00,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2021-04-29 00:50:00,571 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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) [2021-04-29 00:50:00,572 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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) [2021-04-29 00:50:00,572 INFO L185 Difference]: Start difference. First operand has 42 places, 29 transitions, 103 flow. Second operand 4 states and 388 transitions. [2021-04-29 00:50:00,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 117 flow [2021-04-29 00:50:00,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 103 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-29 00:50:00,574 INFO L241 Difference]: Finished difference. Result has 42 places, 16 transitions, 70 flow [2021-04-29 00:50:00,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=16} [2021-04-29 00:50:00,575 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -31 predicate places. [2021-04-29 00:50:00,575 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:00,575 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 16 transitions, 70 flow [2021-04-29 00:50:00,575 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 16 transitions, 70 flow [2021-04-29 00:50:00,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 16 transitions, 70 flow [2021-04-29 00:50:00,579 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 00:50:00,579 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:50:00,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 16 events. 0/16 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:50:00,579 INFO L146 LiptonReduction]: Number of co-enabled transitions 64 [2021-04-29 00:50:00,669 INFO L158 LiptonReduction]: Checked pairs total: 35 [2021-04-29 00:50:00,669 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:50:00,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 95 [2021-04-29 00:50:00,671 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 70 flow [2021-04-29 00:50:00,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-29 00:50:00,672 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:50:00,672 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:50:00,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:50:00,672 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:50:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:50:00,673 INFO L82 PathProgramCache]: Analyzing trace with hash 639156765, now seen corresponding path program 1 times [2021-04-29 00:50:00,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:50:00,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077851075] [2021-04-29 00:50:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:50:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:50:00,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:50:00,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:50:00,718 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:50:00,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:50:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:50:00,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077851075] [2021-04-29 00:50:00,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:50:00,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:50:00,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378941146] [2021-04-29 00:50:00,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:50:00,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:50:00,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:50:00,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:50:00,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-04-29 00:50:00,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-29 00:50:00,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:50:00,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-04-29 00:50:00,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:50:00,753 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 00:50:00,753 INFO L130 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2021-04-29 00:50:00,753 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 15 events. 0/15 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 13 event pairs, 0 based on Foata normal form. 5/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:50:00,754 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-04-29 00:50:00,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 15 transitions, 72 flow [2021-04-29 00:50:00,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:50:00,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:50:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2021-04-29 00:50:00,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5589080459770115 [2021-04-29 00:50:00,756 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2021-04-29 00:50:00,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2021-04-29 00:50:00,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:50:00,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2021-04-29 00:50:00,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2021-04-29 00:50:00,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2021-04-29 00:50:00,761 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2021-04-29 00:50:00,762 INFO L185 Difference]: Start difference. First operand has 31 places, 16 transitions, 70 flow. Second operand 4 states and 389 transitions. [2021-04-29 00:50:00,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 15 transitions, 72 flow [2021-04-29 00:50:00,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 15 transitions, 48 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-04-29 00:50:00,763 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:00,763 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-04-29 00:50:00,763 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -50 predicate places. [2021-04-29 00:50:00,763 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:50:00,764 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:00,764 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-29 00:50:00,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:50:00,764 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:50:00,764 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:50:00,765 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. [2021-04-29 00:50:00,765 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:50:00,765 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:50:00,765 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:50:00,765 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:50:00,766 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:50:00,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-29 00:50:00,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:50:00,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:50:00 BasicIcfg [2021-04-29 00:50:00,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:50:00,773 INFO L168 Benchmark]: Toolchain (without parser) took 16724.49 ms. Allocated memory was 302.0 MB in the beginning and 463.5 MB in the end (delta: 161.5 MB). Free memory was 277.5 MB in the beginning and 208.2 MB in the end (delta: 69.3 MB). Peak memory consumption was 232.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,774 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:50:00,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.06 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 283.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.38 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 281.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,776 INFO L168 Benchmark]: Boogie Preprocessor took 28.82 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,776 INFO L168 Benchmark]: RCFGBuilder took 682.21 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 259.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,777 INFO L168 Benchmark]: TraceAbstraction took 15113.31 ms. Allocated memory was 302.0 MB in the beginning and 463.5 MB in the end (delta: 161.5 MB). Free memory was 258.3 MB in the beginning and 208.2 MB in the end (delta: 50.1 MB). Peak memory consumption was 214.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:50:00,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 759.06 ms. Allocated memory is still 302.0 MB. Free memory was 274.4 MB in the beginning and 283.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 90.38 ms. Allocated memory is still 302.0 MB. Free memory was 283.7 MB in the beginning and 281.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.82 ms. Allocated memory is still 302.0 MB. Free memory was 281.4 MB in the beginning and 280.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 682.21 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 259.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 15113.31 ms. Allocated memory was 302.0 MB in the beginning and 463.5 MB in the end (delta: 161.5 MB). Free memory was 258.3 MB in the beginning and 208.2 MB in the end (delta: 50.1 MB). Peak memory consumption was 214.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13477.2ms, 55 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 66 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 4326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1481, positive: 1293, positive conditional: 1293, positive unconditional: 0, negative: 188, negative conditional: 188, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 594, positive: 548, positive conditional: 0, positive unconditional: 548, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 282, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 251, negative conditional: 0, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1481, positive: 740, positive conditional: 740, positive unconditional: 0, negative: 147, negative conditional: 147, negative unconditional: 0, unknown: 594, unknown conditional: 594, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 543, Positive conditional cache size: 543, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.7ms, 74 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 74, positive conditional: 74, 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: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, 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: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 597, Positive cache size: 553, Positive conditional cache size: 553, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.5ms, 43 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, 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: 54, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 557, Positive conditional cache size: 557, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.2ms, 44 PlacesBefore, 42 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.3ms, 42 PlacesBefore, 31 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 35 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 560, Positive conditional cache size: 560, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 23 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): 605, Positive cache size: 560, Positive conditional cache size: 560, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14986.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 419.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13583.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 19 SDslu, 4 SDs, 0 SdLazy, 39 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 19, 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: 18.4ms SsaConstructionTime, 157.6ms SatisfiabilityAnalysisTime, 374.1ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...