/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 02:23:00,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 02:23:00,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 02:23:00,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 02:23:00,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 02:23:00,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 02:23:00,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 02:23:00,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 02:23:00,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 02:23:00,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 02:23:00,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 02:23:00,268 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 02:23:00,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 02:23:00,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 02:23:00,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 02:23:00,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 02:23:00,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 02:23:00,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 02:23:00,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 02:23:00,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 02:23:00,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 02:23:00,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 02:23:00,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 02:23:00,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 02:23:00,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 02:23:00,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 02:23:00,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 02:23:00,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 02:23:00,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 02:23:00,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 02:23:00,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 02:23:00,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 02:23:00,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 02:23:00,309 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 02:23:00,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 02:23:00,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 02:23:00,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 02:23:00,311 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 02:23:00,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 02:23:00,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 02:23:00,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 02:23:00,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 02:23:00,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 02:23:00,313 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 02:23:00,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 02:23:00,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 02:23:00,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 02:23:00,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 02:23:00,578 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 02:23:00,579 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-26 02:23:00,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226cd8bda/77fe8fc2f4034423bc1f23bf9ebf5c1a/FLAG2183bd2fc [2021-03-26 02:23:01,168 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 02:23:01,169 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2021-03-26 02:23:01,179 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226cd8bda/77fe8fc2f4034423bc1f23bf9ebf5c1a/FLAG2183bd2fc [2021-03-26 02:23:01,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/226cd8bda/77fe8fc2f4034423bc1f23bf9ebf5c1a [2021-03-26 02:23:01,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 02:23:01,657 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 02:23:01,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 02:23:01,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 02:23:01,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 02:23:01,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 02:23:01" (1/1) ... [2021-03-26 02:23:01,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53754995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:01, skipping insertion in model container [2021-03-26 02:23:01,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 02:23:01" (1/1) ... [2021-03-26 02:23:01,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 02:23:01,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 02:23:01,924 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-03-26 02:23:01,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 02:23:01,984 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 02:23:02,021 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i[29913,29926] [2021-03-26 02:23:02,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 02:23:02,105 INFO L208 MainTranslator]: Completed translation [2021-03-26 02:23:02,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02 WrapperNode [2021-03-26 02:23:02,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 02:23:02,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 02:23:02,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 02:23:02,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 02:23:02,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 02:23:02,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 02:23:02,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 02:23:02,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 02:23:02,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... [2021-03-26 02:23:02,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 02:23:02,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 02:23:02,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 02:23:02,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 02:23:02,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 02:23:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-26 02:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 02:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-26 02:23:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 02:23:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-03-26 02:23:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-03-26 02:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 02:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 02:23:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 02:23:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 02:23:02,294 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 02:23:02,647 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 02:23:02,648 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-03-26 02:23:02,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:23:02 BoogieIcfgContainer [2021-03-26 02:23:02,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 02:23:02,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 02:23:02,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 02:23:02,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 02:23:02,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 02:23:01" (1/3) ... [2021-03-26 02:23:02,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f707f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 02:23:02, skipping insertion in model container [2021-03-26 02:23:02,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 02:23:02" (2/3) ... [2021-03-26 02:23:02,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f707f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 02:23:02, skipping insertion in model container [2021-03-26 02:23:02,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 02:23:02" (3/3) ... [2021-03-26 02:23:02,656 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2021-03-26 02:23:02,660 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 02:23:02,664 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 02:23:02,665 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,688 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,689 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,690 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,691 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,692 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,693 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,694 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,695 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,696 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,697 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,698 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,700 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,701 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,702 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 02:23:02,709 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-26 02:23:02,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 02:23:02,741 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 02:23:02,742 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 02:23:02,742 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 02:23:02,742 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 02:23:02,742 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 02:23:02,742 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 02:23:02,742 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 02:23:02,742 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 02:23:02,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-03-26 02:23:02,791 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-03-26 02:23:02,792 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 02:23:02,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 9/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 143 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-26 02:23:02,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 99 transitions, 206 flow [2021-03-26 02:23:02,800 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 89 transitions, 181 flow [2021-03-26 02:23:02,801 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 02:23:02,812 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-26 02:23:02,815 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 89 transitions, 181 flow [2021-03-26 02:23:02,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 89 transitions, 181 flow [2021-03-26 02:23:02,833 INFO L129 PetriNetUnfolder]: 9/89 cut-off events. [2021-03-26 02:23:02,834 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 02:23:02,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 89 events. 9/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2021-03-26 02:23:02,837 INFO L142 LiptonReduction]: Number of co-enabled transitions 1386 [2021-03-26 02:23:04,548 INFO L154 LiptonReduction]: Checked pairs total: 829 [2021-03-26 02:23:04,549 INFO L156 LiptonReduction]: Total number of compositions: 44 [2021-03-26 02:23:04,551 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1751 [2021-03-26 02:23:04,562 INFO L129 PetriNetUnfolder]: 4/40 cut-off events. [2021-03-26 02:23:04,562 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 02:23:04,563 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 02:23:04,563 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 02:23:04,563 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 02:23:04,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 02:23:04,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1156551475, now seen corresponding path program 1 times [2021-03-26 02:23:04,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 02:23:04,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176431534] [2021-03-26 02:23:04,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 02:23:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 02:23:04,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:04,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 02:23:04,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:04,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 02:23:04,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:04,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 02:23:04,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:04,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 02:23:04,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:04,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 02:23:04,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 02:23:04,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176431534] [2021-03-26 02:23:04,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 02:23:04,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 02:23:04,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273541913] [2021-03-26 02:23:04,772 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 02:23:04,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 02:23:04,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 02:23:04,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 02:23:04,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 143 [2021-03-26 02:23:04,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 55 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:04,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 02:23:04,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 143 [2021-03-26 02:23:04,795 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 02:23:05,032 INFO L129 PetriNetUnfolder]: 41/237 cut-off events. [2021-03-26 02:23:05,033 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 02:23:05,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 237 events. 41/237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1185 event pairs, 10 based on Foata normal form. 93/325 useless extension candidates. Maximal degree in co-relation 332. Up to 34 conditions per place. [2021-03-26 02:23:05,035 INFO L132 encePairwiseOnDemand]: 126/143 looper letters, 14 selfloop transitions, 2 changer transitions 36/77 dead transitions. [2021-03-26 02:23:05,035 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 77 transitions, 257 flow [2021-03-26 02:23:05,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 02:23:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 02:23:05,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 982 transitions. [2021-03-26 02:23:05,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5722610722610723 [2021-03-26 02:23:05,054 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 982 transitions. [2021-03-26 02:23:05,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 982 transitions. [2021-03-26 02:23:05,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 02:23:05,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 982 transitions. [2021-03-26 02:23:05,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 81.83333333333333) internal successors, (982), 12 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:05,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:05,078 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 143.0) internal successors, (1859), 13 states have internal predecessors, (1859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:05,080 INFO L185 Difference]: Start difference. First operand has 50 places, 55 transitions, 113 flow. Second operand 12 states and 982 transitions. [2021-03-26 02:23:05,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 77 transitions, 257 flow [2021-03-26 02:23:05,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 77 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 02:23:05,086 INFO L241 Difference]: Finished difference. Result has 67 places, 41 transitions, 104 flow [2021-03-26 02:23:05,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=104, PETRI_PLACES=67, PETRI_TRANSITIONS=41} [2021-03-26 02:23:05,089 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2021-03-26 02:23:05,089 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 02:23:05,089 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 41 transitions, 104 flow [2021-03-26 02:23:05,090 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 41 transitions, 104 flow [2021-03-26 02:23:05,090 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 41 transitions, 104 flow [2021-03-26 02:23:05,096 INFO L129 PetriNetUnfolder]: 0/41 cut-off events. [2021-03-26 02:23:05,097 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 02:23:05,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 41 events. 0/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 20 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 02:23:05,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 334 [2021-03-26 02:23:06,291 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-03-26 02:23:06,395 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 02:23:06,567 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2021-03-26 02:23:06,672 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-03-26 02:23:07,264 WARN L205 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2021-03-26 02:23:07,489 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-03-26 02:23:07,956 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2021-03-26 02:23:08,159 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2021-03-26 02:23:08,221 INFO L154 LiptonReduction]: Checked pairs total: 370 [2021-03-26 02:23:08,221 INFO L156 LiptonReduction]: Total number of compositions: 27 [2021-03-26 02:23:08,221 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3132 [2021-03-26 02:23:08,223 INFO L480 AbstractCegarLoop]: Abstraction has has 26 places, 14 transitions, 50 flow [2021-03-26 02:23:08,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 76.0) internal successors, (456), 6 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,223 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 02:23:08,223 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 02:23:08,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 02:23:08,224 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 02:23:08,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 02:23:08,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1959786695, now seen corresponding path program 1 times [2021-03-26 02:23:08,224 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 02:23:08,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325341133] [2021-03-26 02:23:08,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 02:23:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 02:23:08,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 02:23:08,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 02:23:08,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 02:23:08,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-26 02:23:08,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 02:23:08,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 02:23:08,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 02:23:08,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325341133] [2021-03-26 02:23:08,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 02:23:08,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 02:23:08,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197055007] [2021-03-26 02:23:08,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 02:23:08,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 02:23:08,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 02:23:08,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 02:23:08,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 170 [2021-03-26 02:23:08,347 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 14 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,347 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 02:23:08,347 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 170 [2021-03-26 02:23:08,347 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 02:23:08,387 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 02:23:08,387 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-26 02:23:08,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 16 events. 0/16 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 6/22 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2021-03-26 02:23:08,388 INFO L132 encePairwiseOnDemand]: 166/170 looper letters, 4 selfloop transitions, 4 changer transitions 0/14 dead transitions. [2021-03-26 02:23:08,388 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 14 transitions, 66 flow [2021-03-26 02:23:08,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 02:23:08,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 02:23:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 322 transitions. [2021-03-26 02:23:08,390 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.47352941176470587 [2021-03-26 02:23:08,390 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 322 transitions. [2021-03-26 02:23:08,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 322 transitions. [2021-03-26 02:23:08,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 02:23:08,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 322 transitions. [2021-03-26 02:23:08,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,394 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,394 INFO L185 Difference]: Start difference. First operand has 26 places, 14 transitions, 50 flow. Second operand 4 states and 322 transitions. [2021-03-26 02:23:08,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 14 transitions, 66 flow [2021-03-26 02:23:08,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 14 transitions, 50 flow, removed 6 selfloop flow, removed 8 redundant places. [2021-03-26 02:23:08,395 INFO L241 Difference]: Finished difference. Result has 21 places, 14 transitions, 42 flow [2021-03-26 02:23:08,395 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=42, PETRI_PLACES=21, PETRI_TRANSITIONS=14} [2021-03-26 02:23:08,396 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -29 predicate places. [2021-03-26 02:23:08,396 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 02:23:08,396 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 14 transitions, 42 flow [2021-03-26 02:23:08,396 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 14 transitions, 42 flow [2021-03-26 02:23:08,397 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 21 places, 14 transitions, 42 flow [2021-03-26 02:23:08,399 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-03-26 02:23:08,399 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 02:23:08,399 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 02:23:08,399 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 02:23:08,670 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 02:23:08,670 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 02:23:08,670 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 274 [2021-03-26 02:23:08,671 INFO L480 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 28 flow [2021-03-26 02:23:08,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,672 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 02:23:08,672 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 02:23:08,672 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 02:23:08,672 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 02:23:08,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 02:23:08,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2092726114, now seen corresponding path program 1 times [2021-03-26 02:23:08,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 02:23:08,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577041087] [2021-03-26 02:23:08,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 02:23:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 02:23:08,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 02:23:08,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 02:23:08,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 02:23:08,763 INFO L142 QuantifierPusher]: treesize reduction 5, result has 66.7 percent of original size [2021-03-26 02:23:08,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 02:23:08,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 02:23:08,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 02:23:08,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 02:23:08,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 02:23:08,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-26 02:23:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 02:23:08,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577041087] [2021-03-26 02:23:08,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 02:23:08,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 02:23:08,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272243281] [2021-03-26 02:23:08,794 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 02:23:08,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 02:23:08,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 02:23:08,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-03-26 02:23:08,796 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 177 [2021-03-26 02:23:08,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 7 transitions, 28 flow. Second operand has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 02:23:08,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 177 [2021-03-26 02:23:08,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 02:23:08,825 INFO L129 PetriNetUnfolder]: 0/7 cut-off events. [2021-03-26 02:23:08,826 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 02:23:08,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23 conditions, 7 events. 0/7 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/8 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 02:23:08,826 INFO L132 encePairwiseOnDemand]: 172/177 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2021-03-26 02:23:08,826 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 18 places, 6 transitions, 32 flow [2021-03-26 02:23:08,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 02:23:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 02:23:08,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 467 transitions. [2021-03-26 02:23:08,828 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4397363465160075 [2021-03-26 02:23:08,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 467 transitions. [2021-03-26 02:23:08,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 467 transitions. [2021-03-26 02:23:08,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 02:23:08,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 467 transitions. [2021-03-26 02:23:08,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 77.83333333333333) internal successors, (467), 6 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,832 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 177.0) internal successors, (1239), 7 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,832 INFO L185 Difference]: Start difference. First operand has 14 places, 7 transitions, 28 flow. Second operand 6 states and 467 transitions. [2021-03-26 02:23:08,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 18 places, 6 transitions, 32 flow [2021-03-26 02:23:08,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 02:23:08,833 INFO L241 Difference]: Finished difference. Result has 15 places, 0 transitions, 0 flow [2021-03-26 02:23:08,833 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=10, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=15, PETRI_TRANSITIONS=0} [2021-03-26 02:23:08,833 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -35 predicate places. [2021-03-26 02:23:08,833 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 02:23:08,833 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 0 transitions, 0 flow [2021-03-26 02:23:08,833 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 0 transitions, 0 flow [2021-03-26 02:23:08,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 02:23:08,834 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 02:23:08,834 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 02:23:08,834 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 02:23:08,834 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 02:23:08,834 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 02:23:08,834 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 02:23:08,834 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 02:23:08,835 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 02:23:08,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 02:23:08,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 02:23:08,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 02:23:08 BasicIcfg [2021-03-26 02:23:08,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 02:23:08,840 INFO L168 Benchmark]: Toolchain (without parser) took 7182.88 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 299.1 MB in the beginning and 229.6 MB in the end (delta: 69.4 MB). Peak memory consumption was 139.0 MB. Max. memory is 16.0 GB. [2021-03-26 02:23:08,840 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 335.5 MB. Free memory was 317.0 MB in the beginning and 316.9 MB in the end (delta: 74.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 02:23:08,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.52 ms. Allocated memory is still 335.5 MB. Free memory was 298.9 MB in the beginning and 299.8 MB in the end (delta: -952.0 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-03-26 02:23:08,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.89 ms. Allocated memory is still 335.5 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 02:23:08,841 INFO L168 Benchmark]: Boogie Preprocessor took 40.75 ms. Allocated memory is still 335.5 MB. Free memory was 297.7 MB in the beginning and 296.7 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 02:23:08,842 INFO L168 Benchmark]: RCFGBuilder took 442.11 ms. Allocated memory is still 335.5 MB. Free memory was 296.7 MB in the beginning and 268.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-03-26 02:23:08,842 INFO L168 Benchmark]: TraceAbstraction took 6188.46 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 268.4 MB in the beginning and 229.6 MB in the end (delta: 38.7 MB). Peak memory consumption was 107.9 MB. Max. memory is 16.0 GB. [2021-03-26 02:23:08,851 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 335.5 MB. Free memory was 317.0 MB in the beginning and 316.9 MB in the end (delta: 74.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 443.52 ms. Allocated memory is still 335.5 MB. Free memory was 298.9 MB in the beginning and 299.8 MB in the end (delta: -952.0 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 56.89 ms. Allocated memory is still 335.5 MB. Free memory was 299.8 MB in the beginning and 297.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 40.75 ms. Allocated memory is still 335.5 MB. Free memory was 297.7 MB in the beginning and 296.7 MB in the end (delta: 995.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 442.11 ms. Allocated memory is still 335.5 MB. Free memory was 296.7 MB in the beginning and 268.4 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6188.46 ms. Allocated memory was 335.5 MB in the beginning and 402.7 MB in the end (delta: 67.1 MB). Free memory was 268.4 MB in the beginning and 229.6 MB in the end (delta: 38.7 MB). Peak memory consumption was 107.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1734.3ms, 84 PlacesBefore, 50 PlacesAfterwards, 89 TransitionsBefore, 55 TransitionsAfterwards, 1386 CoEnabledTransitionPairs, 5 FixpointIterations, 26 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 44 TotalNumberOfCompositions, 829 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 573, positive: 559, positive conditional: 559, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 474, positive: 466, positive conditional: 0, positive unconditional: 466, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 474, positive: 466, positive conditional: 0, positive unconditional: 466, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 474, positive: 451, positive conditional: 0, positive unconditional: 451, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 126, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 573, positive: 93, positive conditional: 93, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 474, unknown conditional: 474, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 64, Positive cache size: 59, Positive conditional cache size: 59, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3131.3ms, 67 PlacesBefore, 26 PlacesAfterwards, 41 TransitionsBefore, 14 TransitionsAfterwards, 334 CoEnabledTransitionPairs, 4 FixpointIterations, 7 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 27 TotalNumberOfCompositions, 370 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 228, positive: 206, positive conditional: 206, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 186, positive: 172, positive conditional: 2, positive unconditional: 170, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 186, positive: 172, positive conditional: 2, positive unconditional: 170, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 186, positive: 159, positive conditional: 0, positive unconditional: 159, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 109, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 65, negative conditional: 0, negative unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 228, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 186, unknown conditional: 186, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 17, Positive cache size: 12, Positive conditional cache size: 12, Positive unconditional cache size: 0, Negative cache size: 5, Negative conditional cache size: 5, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 273.8ms, 21 PlacesBefore, 14 PlacesAfterwards, 14 TransitionsBefore, 7 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8ms, 15 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 684]: 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 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6099.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 399.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1813.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 51 SDslu, 48 SDs, 0 SdLazy, 98 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 141.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=0, 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: 9.3ms SsaConstructionTime, 80.9ms SatisfiabilityAnalysisTime, 274.0ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 378 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...