/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 16:27:39,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 16:27:39,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 16:27:39,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 16:27:39,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 16:27:39,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 16:27:39,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 16:27:39,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 16:27:39,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 16:27:39,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 16:27:39,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 16:27:39,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 16:27:39,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 16:27:39,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 16:27:39,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 16:27:39,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 16:27:39,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 16:27:39,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 16:27:39,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 16:27:39,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 16:27:39,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 16:27:39,850 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 16:27:39,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 16:27:39,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 16:27:39,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 16:27:39,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 16:27:39,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 16:27:39,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 16:27:39,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 16:27:39,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 16:27:39,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 16:27:39,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 16:27:39,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 16:27:39,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 16:27:39,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 16:27:39,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 16:27:39,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 16:27:39,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 16:27:39,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 16:27:39,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 16:27:39,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 16:27:39,870 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-06-11 16:27:39,903 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 16:27:39,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 16:27:39,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 16:27:39,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 16:27:39,906 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 16:27:39,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 16:27:39,906 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 16:27:39,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 16:27:39,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 16:27:39,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 16:27:39,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 16:27:39,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 16:27:39,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 16:27:39,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 16:27:39,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:27:39,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 16:27:39,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 16:27:39,910 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-06-11 16:27:39,910 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 16:27:39,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 16:27:39,910 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 16:27:40,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 16:27:40,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 16:27:40,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 16:27:40,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-11 16:27:40,207 INFO L275 PluginConnector]: CDTParser initialized [2021-06-11 16:27:40,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-06-11 16:27:40,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6566301fb/cbc6a5697afe4b7cb8ffdfa6ee8b3d09/FLAG17a7e31ac [2021-06-11 16:27:40,720 INFO L306 CDTParser]: Found 1 translation units. [2021-06-11 16:27:40,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-06-11 16:27:40,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6566301fb/cbc6a5697afe4b7cb8ffdfa6ee8b3d09/FLAG17a7e31ac [2021-06-11 16:27:40,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6566301fb/cbc6a5697afe4b7cb8ffdfa6ee8b3d09 [2021-06-11 16:27:40,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 16:27:40,751 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-11 16:27:40,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-11 16:27:40,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-11 16:27:40,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-11 16:27:40,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:27:40" (1/1) ... [2021-06-11 16:27:40,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69aaa262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:40, skipping insertion in model container [2021-06-11 16:27:40,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.06 04:27:40" (1/1) ... [2021-06-11 16:27:40,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-11 16:27:40,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-11 16:27:41,010 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/safe033_tso.oepc.i[950,963] [2021-06-11 16:27:41,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:27:41,149 INFO L203 MainTranslator]: Completed pre-run [2021-06-11 16:27:41,160 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/safe033_tso.oepc.i[950,963] [2021-06-11 16:27:41,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-11 16:27:41,269 INFO L208 MainTranslator]: Completed translation [2021-06-11 16:27:41,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41 WrapperNode [2021-06-11 16:27:41,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-11 16:27:41,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 16:27:41,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 16:27:41,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 16:27:41,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 16:27:41,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 16:27:41,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 16:27:41,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 16:27:41,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... [2021-06-11 16:27:41,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 16:27:41,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 16:27:41,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 16:27:41,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 16:27:41,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 16:27:41,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-11 16:27:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-11 16:27:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-11 16:27:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-11 16:27:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-11 16:27:41,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-11 16:27:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-11 16:27:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-11 16:27:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-11 16:27:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-11 16:27:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 16:27:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 16:27:41,423 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 16:27:41,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 16:27:41,772 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-11 16:27:41,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:27:41 BoogieIcfgContainer [2021-06-11 16:27:41,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 16:27:41,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 16:27:41,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 16:27:41,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 16:27:41,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.06 04:27:40" (1/3) ... [2021-06-11 16:27:41,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346612b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:27:41, skipping insertion in model container [2021-06-11 16:27:41,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.06 04:27:41" (2/3) ... [2021-06-11 16:27:41,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346612b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 04:27:41, skipping insertion in model container [2021-06-11 16:27:41,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 04:27:41" (3/3) ... [2021-06-11 16:27:41,781 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-06-11 16:27:41,786 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 16:27:41,789 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 16:27:41,790 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,818 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,818 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,822 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,827 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,827 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-11 16:27:41,828 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-11 16:27:41,843 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-11 16:27:41,869 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 16:27:41,869 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 16:27:41,869 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 16:27:41,870 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 16:27:41,870 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 16:27:41,870 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 16:27:41,870 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 16:27:41,871 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 16:27:41,880 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-06-11 16:27:41,917 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-06-11 16:27:41,917 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:41,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 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. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-06-11 16:27:41,920 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 60 transitions, 130 flow [2021-06-11 16:27:41,924 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 48 transitions, 102 flow [2021-06-11 16:27:41,925 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:41,936 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 102 flow [2021-06-11 16:27:41,939 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 102 flow [2021-06-11 16:27:41,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 102 flow [2021-06-11 16:27:41,950 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-06-11 16:27:41,951 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:41,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-06-11 16:27:41,953 INFO L151 LiptonReduction]: Number of co-enabled transitions 456 [2021-06-11 16:27:42,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,052 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:42,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:42,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:27:42,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,417 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:42,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:42,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:27:42,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,640 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:42,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:42,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:27:42,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:42,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,824 INFO L147 QuantifierPusher]: treesize reduction 15, result has 6.3 percent of original size 1 [2021-06-11 16:27:42,900 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:42,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:43,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:43,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:27:43,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:43,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:43,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:27:43,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,325 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:43,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 16:27:43,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:27:43,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,344 INFO L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-06-11 16:27:43,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,541 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:43,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:43,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:43,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-06-11 16:27:43,739 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 16:27:43,952 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-06-11 16:27:44,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,046 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:44,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,053 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:44,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-06-11 16:27:44,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-06-11 16:27:44,057 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:44,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,059 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:44,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 16:27:44,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-06-11 16:27:44,064 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-06-11 16:27:44,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-06-11 16:27:44,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 16:27:44,079 INFO L163 LiptonReduction]: Checked pairs total: 810 [2021-06-11 16:27:44,079 INFO L165 LiptonReduction]: Total number of compositions: 39 [2021-06-11 16:27:44,083 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2158 [2021-06-11 16:27:44,094 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-06-11 16:27:44,094 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:44,094 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:27:44,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-06-11 16:27:44,095 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:27:44,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:27:44,100 INFO L82 PathProgramCache]: Analyzing trace with hash 201136086, now seen corresponding path program 1 times [2021-06-11 16:27:44,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:27:44,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95338123] [2021-06-11 16:27:44,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:27:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:27:44,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:27:44,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95338123] [2021-06-11 16:27:44,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:27:44,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:27:44,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453685955] [2021-06-11 16:27:44,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-11 16:27:44,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:27:44,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-11 16:27:44,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-11 16:27:44,280 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 99 [2021-06-11 16:27:44,282 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 13 transitions, 32 flow. Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,282 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:27:44,282 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 99 [2021-06-11 16:27:44,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:27:44,293 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-11 16:27:44,293 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:44,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 1/13 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:27:44,295 INFO L132 encePairwiseOnDemand]: 98/99 looper letters, 0 selfloop transitions, 0 changer transitions 0/12 dead transitions. [2021-06-11 16:27:44,295 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 12 transitions, 30 flow [2021-06-11 16:27:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-11 16:27:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-06-11 16:27:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 185 transitions. [2021-06-11 16:27:44,305 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9343434343434344 [2021-06-11 16:27:44,306 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 185 transitions. [2021-06-11 16:27:44,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 185 transitions. [2021-06-11 16:27:44,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:27:44,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 185 transitions. [2021-06-11 16:27:44,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,320 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,321 INFO L185 Difference]: Start difference. First operand has 19 places, 13 transitions, 32 flow. Second operand 2 states and 185 transitions. [2021-06-11 16:27:44,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 12 transitions, 30 flow [2021-06-11 16:27:44,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 18 places, 12 transitions, 28 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:27:44,324 INFO L241 Difference]: Finished difference. Result has 18 places, 12 transitions, 28 flow [2021-06-11 16:27:44,325 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=28, PETRI_PLACES=18, PETRI_TRANSITIONS=12} [2021-06-11 16:27:44,326 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, -1 predicate places. [2021-06-11 16:27:44,326 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:44,326 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 18 places, 12 transitions, 28 flow [2021-06-11 16:27:44,327 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 18 places, 12 transitions, 28 flow [2021-06-11 16:27:44,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 12 transitions, 28 flow [2021-06-11 16:27:44,331 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-06-11 16:27:44,331 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:44,331 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 12 events. 0/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-11 16:27:44,331 INFO L151 LiptonReduction]: Number of co-enabled transitions 54 [2021-06-11 16:27:44,333 INFO L163 LiptonReduction]: Checked pairs total: 60 [2021-06-11 16:27:44,333 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:27:44,333 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 16:27:44,337 INFO L480 AbstractCegarLoop]: Abstraction has has 17 places, 12 transitions, 28 flow [2021-06-11 16:27:44,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:27:44,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-06-11 16:27:44,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 16:27:44,338 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:27:44,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:27:44,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1940251111, now seen corresponding path program 1 times [2021-06-11 16:27:44,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:27:44,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747245587] [2021-06-11 16:27:44,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:27:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:27:44,443 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-11 16:27:44,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:27:44,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:27:44,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747245587] [2021-06-11 16:27:44,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:27:44,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-11 16:27:44,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569426054] [2021-06-11 16:27:44,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 16:27:44,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:27:44,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 16:27:44,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 16:27:44,458 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 99 [2021-06-11 16:27:44,459 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 17 places, 12 transitions, 28 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:27:44,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 99 [2021-06-11 16:27:44,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:27:44,481 INFO L129 PetriNetUnfolder]: 4/31 cut-off events. [2021-06-11 16:27:44,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:44,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 31 events. 4/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 88 event pairs, 2 based on Foata normal form. 4/33 useless extension candidates. Maximal degree in co-relation 48. Up to 13 conditions per place. [2021-06-11 16:27:44,482 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 3 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2021-06-11 16:27:44,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 14 transitions, 46 flow [2021-06-11 16:27:44,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 16:27:44,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 16:27:44,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 230 transitions. [2021-06-11 16:27:44,488 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7744107744107744 [2021-06-11 16:27:44,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 230 transitions. [2021-06-11 16:27:44,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 230 transitions. [2021-06-11 16:27:44,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:27:44,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 230 transitions. [2021-06-11 16:27:44,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,492 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 99.0) internal successors, (396), 4 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,492 INFO L185 Difference]: Start difference. First operand has 17 places, 12 transitions, 28 flow. Second operand 3 states and 230 transitions. [2021-06-11 16:27:44,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 14 transitions, 46 flow [2021-06-11 16:27:44,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 14 transitions, 46 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:27:44,494 INFO L241 Difference]: Finished difference. Result has 21 places, 14 transitions, 54 flow [2021-06-11 16:27:44,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2021-06-11 16:27:44,494 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, 2 predicate places. [2021-06-11 16:27:44,495 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:44,495 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 14 transitions, 54 flow [2021-06-11 16:27:44,496 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 14 transitions, 54 flow [2021-06-11 16:27:44,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 54 flow [2021-06-11 16:27:44,502 INFO L129 PetriNetUnfolder]: 4/31 cut-off events. [2021-06-11 16:27:44,502 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-06-11 16:27:44,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 31 events. 4/31 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 88 event pairs, 2 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 56. Up to 13 conditions per place. [2021-06-11 16:27:44,504 INFO L151 LiptonReduction]: Number of co-enabled transitions 50 [2021-06-11 16:27:44,506 INFO L163 LiptonReduction]: Checked pairs total: 18 [2021-06-11 16:27:44,507 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:27:44,507 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 16:27:44,508 INFO L480 AbstractCegarLoop]: Abstraction has has 21 places, 14 transitions, 54 flow [2021-06-11 16:27:44,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:27:44,509 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:27:44,509 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 16:27:44,509 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:27:44,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:27:44,509 INFO L82 PathProgramCache]: Analyzing trace with hash 18241728, now seen corresponding path program 1 times [2021-06-11 16:27:44,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:27:44,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838157479] [2021-06-11 16:27:44,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:27:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:27:44,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:27:44,617 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 16:27:44,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:44,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:27:44,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838157479] [2021-06-11 16:27:44,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:27:44,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-11 16:27:44,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736418937] [2021-06-11 16:27:44,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:27:44,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:27:44,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:27:44,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:27:44,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2021-06-11 16:27:44,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 14 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:27:44,629 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2021-06-11 16:27:44,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:27:44,665 INFO L129 PetriNetUnfolder]: 12/53 cut-off events. [2021-06-11 16:27:44,665 INFO L130 PetriNetUnfolder]: For 13/16 co-relation queries the response was YES. [2021-06-11 16:27:44,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 53 events. 12/53 cut-off events. For 13/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 205 event pairs, 4 based on Foata normal form. 10/60 useless extension candidates. Maximal degree in co-relation 112. Up to 29 conditions per place. [2021-06-11 16:27:44,666 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 4 selfloop transitions, 5 changer transitions 3/21 dead transitions. [2021-06-11 16:27:44,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 21 transitions, 92 flow [2021-06-11 16:27:44,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:27:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:27:44,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 379 transitions. [2021-06-11 16:27:44,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7656565656565657 [2021-06-11 16:27:44,668 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 379 transitions. [2021-06-11 16:27:44,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 379 transitions. [2021-06-11 16:27:44,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:27:44,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 379 transitions. [2021-06-11 16:27:44,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,671 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,671 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,671 INFO L185 Difference]: Start difference. First operand has 21 places, 14 transitions, 54 flow. Second operand 5 states and 379 transitions. [2021-06-11 16:27:44,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 21 transitions, 92 flow [2021-06-11 16:27:44,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 21 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 16:27:44,673 INFO L241 Difference]: Finished difference. Result has 26 places, 18 transitions, 83 flow [2021-06-11 16:27:44,673 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2021-06-11 16:27:44,673 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, 7 predicate places. [2021-06-11 16:27:44,673 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:44,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 18 transitions, 83 flow [2021-06-11 16:27:44,674 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 18 transitions, 83 flow [2021-06-11 16:27:44,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 26 places, 18 transitions, 83 flow [2021-06-11 16:27:44,680 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-06-11 16:27:44,680 INFO L130 PetriNetUnfolder]: For 26/29 co-relation queries the response was YES. [2021-06-11 16:27:44,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 46 events. 7/46 cut-off events. For 26/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 167 event pairs, 3 based on Foata normal form. 3/48 useless extension candidates. Maximal degree in co-relation 113. Up to 21 conditions per place. [2021-06-11 16:27:44,681 INFO L151 LiptonReduction]: Number of co-enabled transitions 60 [2021-06-11 16:27:44,683 INFO L163 LiptonReduction]: Checked pairs total: 12 [2021-06-11 16:27:44,683 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:27:44,683 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-06-11 16:27:44,683 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 83 flow [2021-06-11 16:27:44,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:27:44,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:27:44,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 16:27:44,684 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:27:44,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:27:44,685 INFO L82 PathProgramCache]: Analyzing trace with hash 335030024, now seen corresponding path program 1 times [2021-06-11 16:27:44,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:27:44,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848077752] [2021-06-11 16:27:44,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:27:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:27:44,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:27:44,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:27:44,725 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-06-11 16:27:44,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 16:27:44,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:27:44,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848077752] [2021-06-11 16:27:44,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:27:44,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:27:44,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032301519] [2021-06-11 16:27:44,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 16:27:44,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:27:44,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 16:27:44,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-11 16:27:44,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2021-06-11 16:27:44,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:27:44,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2021-06-11 16:27:44,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:27:44,788 INFO L129 PetriNetUnfolder]: 5/40 cut-off events. [2021-06-11 16:27:44,788 INFO L130 PetriNetUnfolder]: For 59/82 co-relation queries the response was YES. [2021-06-11 16:27:44,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 40 events. 5/40 cut-off events. For 59/82 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 137 event pairs, 0 based on Foata normal form. 25/64 useless extension candidates. Maximal degree in co-relation 119. Up to 20 conditions per place. [2021-06-11 16:27:44,790 INFO L132 encePairwiseOnDemand]: 94/99 looper letters, 2 selfloop transitions, 8 changer transitions 2/21 dead transitions. [2021-06-11 16:27:44,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 21 transitions, 121 flow [2021-06-11 16:27:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 16:27:44,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 16:27:44,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 525 transitions. [2021-06-11 16:27:44,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7575757575757576 [2021-06-11 16:27:44,793 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 525 transitions. [2021-06-11 16:27:44,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 525 transitions. [2021-06-11 16:27:44,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:27:44,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 525 transitions. [2021-06-11 16:27:44,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 75.0) internal successors, (525), 7 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,797 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 99.0) internal successors, (792), 8 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,797 INFO L185 Difference]: Start difference. First operand has 26 places, 18 transitions, 83 flow. Second operand 7 states and 525 transitions. [2021-06-11 16:27:44,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 21 transitions, 121 flow [2021-06-11 16:27:44,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 21 transitions, 121 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-06-11 16:27:44,800 INFO L241 Difference]: Finished difference. Result has 35 places, 19 transitions, 116 flow [2021-06-11 16:27:44,800 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=116, PETRI_PLACES=35, PETRI_TRANSITIONS=19} [2021-06-11 16:27:44,800 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, 16 predicate places. [2021-06-11 16:27:44,800 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:44,800 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 19 transitions, 116 flow [2021-06-11 16:27:44,801 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 19 transitions, 116 flow [2021-06-11 16:27:44,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 19 transitions, 116 flow [2021-06-11 16:27:44,812 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-06-11 16:27:44,812 INFO L130 PetriNetUnfolder]: For 54/56 co-relation queries the response was YES. [2021-06-11 16:27:44,813 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 34 events. 3/34 cut-off events. For 54/56 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 103 event pairs, 0 based on Foata normal form. 2/35 useless extension candidates. Maximal degree in co-relation 108. Up to 16 conditions per place. [2021-06-11 16:27:44,813 INFO L151 LiptonReduction]: Number of co-enabled transitions 54 [2021-06-11 16:27:44,816 INFO L163 LiptonReduction]: Checked pairs total: 10 [2021-06-11 16:27:44,816 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:27:44,816 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-06-11 16:27:44,817 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 116 flow [2021-06-11 16:27:44,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 73.8) internal successors, (369), 5 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,818 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 16:27:44,818 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-11 16:27:44,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 16:27:44,818 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-11 16:27:44,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 16:27:44,818 INFO L82 PathProgramCache]: Analyzing trace with hash 884981244, now seen corresponding path program 1 times [2021-06-11 16:27:44,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 16:27:44,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088470366] [2021-06-11 16:27:44,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 16:27:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 16:27:44,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 16:27:44,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 16:27:44,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 16:27:44,892 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-06-11 16:27:44,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-06-11 16:27:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 16:27:44,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088470366] [2021-06-11 16:27:44,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 16:27:44,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 16:27:44,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447200304] [2021-06-11 16:27:44,905 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-11 16:27:44,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 16:27:44,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-11 16:27:44,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-11 16:27:44,907 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 99 [2021-06-11 16:27:44,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 116 flow. Second operand has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 16:27:44,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 99 [2021-06-11 16:27:44,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 16:27:44,937 INFO L129 PetriNetUnfolder]: 5/40 cut-off events. [2021-06-11 16:27:44,937 INFO L130 PetriNetUnfolder]: For 74/81 co-relation queries the response was YES. [2021-06-11 16:27:44,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 40 events. 5/40 cut-off events. For 74/81 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 133 event pairs, 0 based on Foata normal form. 6/45 useless extension candidates. Maximal degree in co-relation 139. Up to 18 conditions per place. [2021-06-11 16:27:44,938 INFO L132 encePairwiseOnDemand]: 93/99 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-06-11 16:27:44,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 22 transitions, 140 flow [2021-06-11 16:27:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 16:27:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 16:27:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 366 transitions. [2021-06-11 16:27:44,940 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7393939393939394 [2021-06-11 16:27:44,940 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 366 transitions. [2021-06-11 16:27:44,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 366 transitions. [2021-06-11 16:27:44,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 16:27:44,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 366 transitions. [2021-06-11 16:27:44,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,944 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 99.0) internal successors, (594), 6 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,944 INFO L185 Difference]: Start difference. First operand has 34 places, 19 transitions, 116 flow. Second operand 5 states and 366 transitions. [2021-06-11 16:27:44,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 22 transitions, 140 flow [2021-06-11 16:27:44,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 115 flow, removed 4 selfloop flow, removed 7 redundant places. [2021-06-11 16:27:44,947 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-06-11 16:27:44,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-06-11 16:27:44,947 INFO L343 CegarLoopForPetriNet]: 19 programPoint places, 11 predicate places. [2021-06-11 16:27:44,947 INFO L173 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-06-11 16:27:44,947 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-06-11 16:27:44,947 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-06-11 16:27:44,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-06-11 16:27:44,948 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-11 16:27:44,948 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 16:27:44,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-06-11 16:27:44,948 INFO L151 LiptonReduction]: Number of co-enabled transitions 0 [2021-06-11 16:27:44,948 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 16:27:44,948 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 16:27:44,948 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-06-11 16:27:44,950 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-06-11 16:27:44,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 72.5) internal successors, (290), 4 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-11 16:27:44,951 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 16:27:44,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 04:27:44 BasicIcfg [2021-06-11 16:27:44,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 16:27:44,956 INFO L168 Benchmark]: Toolchain (without parser) took 4203.24 ms. Allocated memory was 362.8 MB in the beginning and 482.3 MB in the end (delta: 119.5 MB). Free memory was 325.3 MB in the beginning and 385.1 MB in the end (delta: -59.8 MB). Peak memory consumption was 61.6 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,957 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 362.8 MB. Free memory was 343.5 MB in the beginning and 343.3 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 16:27:44,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.90 ms. Allocated memory is still 362.8 MB. Free memory was 325.2 MB in the beginning and 324.7 MB in the end (delta: 482.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,957 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.72 ms. Allocated memory is still 362.8 MB. Free memory was 324.7 MB in the beginning and 322.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,958 INFO L168 Benchmark]: Boogie Preprocessor took 31.90 ms. Allocated memory is still 362.8 MB. Free memory was 322.6 MB in the beginning and 320.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,958 INFO L168 Benchmark]: RCFGBuilder took 420.12 ms. Allocated memory is still 362.8 MB. Free memory was 320.5 MB in the beginning and 299.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,959 INFO L168 Benchmark]: TraceAbstraction took 3178.08 ms. Allocated memory was 362.8 MB in the beginning and 482.3 MB in the end (delta: 119.5 MB). Free memory was 298.5 MB in the beginning and 385.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. [2021-06-11 16:27:44,961 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 362.8 MB. Free memory was 343.5 MB in the beginning and 343.3 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 513.90 ms. Allocated memory is still 362.8 MB. Free memory was 325.2 MB in the beginning and 324.7 MB in the end (delta: 482.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.72 ms. Allocated memory is still 362.8 MB. Free memory was 324.7 MB in the beginning and 322.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 31.90 ms. Allocated memory is still 362.8 MB. Free memory was 322.6 MB in the beginning and 320.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 420.12 ms. Allocated memory is still 362.8 MB. Free memory was 320.5 MB in the beginning and 299.5 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3178.08 ms. Allocated memory was 362.8 MB in the beginning and 482.3 MB in the end (delta: 119.5 MB). Free memory was 298.5 MB in the beginning and 385.1 MB in the end (delta: -86.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2140.4ms, 54 PlacesBefore, 19 PlacesAfterwards, 48 TransitionsBefore, 13 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 6 FixpointIterations, 16 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 39 TotalNumberOfCompositions, 810 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 462, positive: 405, positive conditional: 405, positive unconditional: 0, negative: 57, negative conditional: 57, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 462, positive: 405, positive conditional: 0, positive unconditional: 405, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 462, positive: 405, positive conditional: 0, positive unconditional: 405, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 324, positive: 303, positive conditional: 0, positive unconditional: 303, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 324, positive: 300, positive conditional: 0, positive unconditional: 300, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 24, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 81, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 462, positive: 102, positive conditional: 0, positive unconditional: 102, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 324, unknown conditional: 0, unknown unconditional: 324] , Statistics on independence cache: Total cache size (in pairs): 324, Positive cache size: 303, Positive conditional cache size: 0, Positive unconditional cache size: 303, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.0ms, 18 PlacesBefore, 17 PlacesAfterwards, 12 TransitionsBefore, 12 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 60 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 31, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 31, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 31, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 31, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 1, unknown conditional: 0, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 325, Positive cache size: 304, Positive conditional cache size: 0, Positive unconditional cache size: 304, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.8ms, 21 PlacesBefore, 21 PlacesAfterwards, 14 TransitionsBefore, 14 TransitionsAfterwards, 50 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 18 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 325, Positive cache size: 304, Positive conditional cache size: 0, Positive unconditional cache size: 304, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.2ms, 26 PlacesBefore, 26 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 307, Positive conditional cache size: 1, Positive unconditional cache size: 306, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.7ms, 35 PlacesBefore, 34 PlacesAfterwards, 19 TransitionsBefore, 19 TransitionsAfterwards, 54 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, positive: 8, positive conditional: 6, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 6, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10, positive: 8, positive conditional: 6, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 307, Positive conditional cache size: 1, Positive unconditional cache size: 306, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9ms, 30 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 328, Positive cache size: 307, Positive conditional cache size: 1, Positive unconditional cache size: 306, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Eliminated conditions: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3086.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 240.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2219.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 7 SDs, 0 SdLazy, 41 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 63.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 22, 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: 36.8ms SsaConstructionTime, 109.9ms SatisfiabilityAnalysisTime, 270.9ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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...