/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/product-lines/email_spec6_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:54:26,622 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:54:26,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:54:26,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:54:26,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:54:26,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:54:26,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:54:26,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:54:26,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:54:26,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:54:26,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:54:26,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:54:26,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:54:26,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:54:26,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:54:26,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:54:26,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:54:26,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:54:26,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:54:26,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:54:26,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:54:26,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:54:26,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:54:26,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:54:26,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:54:26,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:54:26,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:54:26,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:54:26,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:54:26,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:54:26,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:54:26,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:54:26,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:54:26,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:54:26,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:54:26,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:54:26,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:54:26,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:54:26,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:54:26,687 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:54:26,688 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:54:26,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 11:54:26,715 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:54:26,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:54:26,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:54:26,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:54:26,716 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:54:26,716 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:54:26,717 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:54:26,717 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:54:26,717 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:54:26,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:54:26,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:54:26,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:54:26,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:54:26,719 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:54:26,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:54:26,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:54:26,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:54:26,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:54:26,956 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:54:26,957 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:54:26,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec6_product30.cil.c [2023-04-01 11:54:27,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:54:28,244 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:54:28,246 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c [2023-04-01 11:54:28,259 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9416363d6/04d58e77bbdf4e8e9870b507a9a78adb/FLAG0f7a5f5e1 [2023-04-01 11:54:28,269 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9416363d6/04d58e77bbdf4e8e9870b507a9a78adb [2023-04-01 11:54:28,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:54:28,272 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:54:28,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:54:28,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:54:28,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:54:28,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:28,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae99e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28, skipping insertion in model container [2023-04-01 11:54:28,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:28,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:54:28,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:54:28,775 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c[64728,64741] [2023-04-01 11:54:28,779 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:54:28,792 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:54:28,890 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c[64728,64741] [2023-04-01 11:54:28,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:54:28,909 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 11:54:28,914 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:54:28,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28 WrapperNode [2023-04-01 11:54:28,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:54:28,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:54:28,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:54:28,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:54:28,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:28,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:28,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:28,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:54:29,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:54:29,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:54:29,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:54:29,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (1/1) ... [2023-04-01 11:54:29,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:54:29,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:54:29,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 11:54:29,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 11:54:29,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 11:54:29,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 11:54:29,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 11:54:29,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 11:54:29,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2023-04-01 11:54:29,158 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 11:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 11:54:29,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 11:54:29,161 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-01 11:54:29,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 11:54:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:54:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:54:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:54:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:54:29,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 11:54:29,163 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 11:54:29,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 11:54:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 11:54:29,167 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 11:54:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 11:54:29,169 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 11:54:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 11:54:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 11:54:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 11:54:29,170 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 11:54:29,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 11:54:29,172 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 11:54:29,173 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 11:54:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-01 11:54:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:54:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2023-04-01 11:54:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 11:54:29,174 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 11:54:29,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 11:54:29,176 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 11:54:29,177 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 11:54:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:54:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:54:29,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:54:29,451 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:54:29,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:54:30,263 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:54:30,959 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:54:30,959 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 11:54:30,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:54:30 BoogieIcfgContainer [2023-04-01 11:54:30,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:54:30,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:54:30,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:54:30,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:54:30,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:54:28" (1/3) ... [2023-04-01 11:54:30,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639cc8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:54:30, skipping insertion in model container [2023-04-01 11:54:30,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:54:28" (2/3) ... [2023-04-01 11:54:30,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@639cc8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:54:30, skipping insertion in model container [2023-04-01 11:54:30,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:54:30" (3/3) ... [2023-04-01 11:54:30,971 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2023-04-01 11:54:30,985 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:54:30,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:54:31,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:54:31,039 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@78d98cdb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:54:31,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:54:31,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 406 states, 205 states have (on average 1.2) internal successors, (246), 214 states have internal predecessors, (246), 117 states have call successors, (117), 75 states have call predecessors, (117), 75 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-04-01 11:54:31,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-01 11:54:31,067 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:54:31,068 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1] [2023-04-01 11:54:31,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:54:31,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:54:31,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1263349063, now seen corresponding path program 1 times [2023-04-01 11:54:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:54:31,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189937692] [2023-04-01 11:54:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:54:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:31,517 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:31,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:54:31,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189937692] [2023-04-01 11:54:31,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189937692] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:54:31,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:54:31,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:54:31,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465357798] [2023-04-01 11:54:31,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:54:31,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:54:31,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:54:31,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:54:31,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:54:31,562 INFO L87 Difference]: Start difference. First operand has 406 states, 205 states have (on average 1.2) internal successors, (246), 214 states have internal predecessors, (246), 117 states have call successors, (117), 75 states have call predecessors, (117), 75 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) Second operand has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:54:31,744 INFO L93 Difference]: Finished difference Result 578 states and 687 transitions. [2023-04-01 11:54:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:54:31,747 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 147 [2023-04-01 11:54:31,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:54:31,757 INFO L225 Difference]: With dead ends: 578 [2023-04-01 11:54:31,757 INFO L226 Difference]: Without dead ends: 364 [2023-04-01 11:54:31,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:54:31,762 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:54:31,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:54:31,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-04-01 11:54:31,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2023-04-01 11:54:31,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 187 states have (on average 1.1978609625668448) internal successors, (224), 193 states have internal predecessors, (224), 106 states have call successors, (106), 74 states have call predecessors, (106), 70 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-04-01 11:54:31,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 431 transitions. [2023-04-01 11:54:31,808 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 431 transitions. Word has length 147 [2023-04-01 11:54:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:54:31,809 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 431 transitions. [2023-04-01 11:54:31,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.5) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 431 transitions. [2023-04-01 11:54:31,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-04-01 11:54:31,812 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:54:31,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2023-04-01 11:54:31,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:54:31,812 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:54:31,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:54:31,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1427096304, now seen corresponding path program 1 times [2023-04-01 11:54:31,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:54:31,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942701698] [2023-04-01 11:54:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:31,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:54:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:32,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:54:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942701698] [2023-04-01 11:54:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942701698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:54:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:54:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:54:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789111470] [2023-04-01 11:54:32,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:54:32,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:54:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:54:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:54:32,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,118 INFO L87 Difference]: Start difference. First operand 364 states and 431 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:54:32,239 INFO L93 Difference]: Finished difference Result 563 states and 657 transitions. [2023-04-01 11:54:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:54:32,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 148 [2023-04-01 11:54:32,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:54:32,246 INFO L225 Difference]: With dead ends: 563 [2023-04-01 11:54:32,246 INFO L226 Difference]: Without dead ends: 366 [2023-04-01 11:54:32,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,254 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 0 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:54:32,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 780 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:54:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-04-01 11:54:32,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2023-04-01 11:54:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 189 states have (on average 1.1957671957671958) internal successors, (226), 195 states have internal predecessors, (226), 106 states have call successors, (106), 74 states have call predecessors, (106), 70 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2023-04-01 11:54:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 433 transitions. [2023-04-01 11:54:32,283 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 433 transitions. Word has length 148 [2023-04-01 11:54:32,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:54:32,284 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 433 transitions. [2023-04-01 11:54:32,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,286 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 433 transitions. [2023-04-01 11:54:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-01 11:54:32,289 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:54:32,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:54:32,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:54:32,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:54:32,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:54:32,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1242986545, now seen corresponding path program 1 times [2023-04-01 11:54:32,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:54:32,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481756579] [2023-04-01 11:54:32,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:32,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:54:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:32,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:54:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481756579] [2023-04-01 11:54:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481756579] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:54:32,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:54:32,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:54:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124583487] [2023-04-01 11:54:32,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:54:32,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:54:32,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:54:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:54:32,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,459 INFO L87 Difference]: Start difference. First operand 366 states and 433 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:54:32,543 INFO L93 Difference]: Finished difference Result 714 states and 873 transitions. [2023-04-01 11:54:32,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:54:32,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 157 [2023-04-01 11:54:32,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:54:32,547 INFO L225 Difference]: With dead ends: 714 [2023-04-01 11:54:32,547 INFO L226 Difference]: Without dead ends: 406 [2023-04-01 11:54:32,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,553 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 52 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:54:32,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 784 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:54:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-04-01 11:54:32,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2023-04-01 11:54:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 220 states have (on average 1.2636363636363637) internal successors, (278), 226 states have internal predecessors, (278), 114 states have call successors, (114), 74 states have call predecessors, (114), 70 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2023-04-01 11:54:32,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 501 transitions. [2023-04-01 11:54:32,579 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 501 transitions. Word has length 157 [2023-04-01 11:54:32,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:54:32,580 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 501 transitions. [2023-04-01 11:54:32,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 501 transitions. [2023-04-01 11:54:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-01 11:54:32,586 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:54:32,586 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:54:32,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:54:32,586 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:54:32,587 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:54:32,587 INFO L85 PathProgramCache]: Analyzing trace with hash -606919340, now seen corresponding path program 1 times [2023-04-01 11:54:32,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:54:32,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448657654] [2023-04-01 11:54:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:32,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:54:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:32,727 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:54:32,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448657654] [2023-04-01 11:54:32,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448657654] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:54:32,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:54:32,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:54:32,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177003124] [2023-04-01 11:54:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:54:32,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:54:32,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:54:32,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:54:32,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,729 INFO L87 Difference]: Start difference. First operand 405 states and 501 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:54:32,802 INFO L93 Difference]: Finished difference Result 828 states and 1072 transitions. [2023-04-01 11:54:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:54:32,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 158 [2023-04-01 11:54:32,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:54:32,806 INFO L225 Difference]: With dead ends: 828 [2023-04-01 11:54:32,806 INFO L226 Difference]: Without dead ends: 481 [2023-04-01 11:54:32,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:54:32,810 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 50 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:54:32,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 778 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:54:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2023-04-01 11:54:32,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 480. [2023-04-01 11:54:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 280 states have (on average 1.35) internal successors, (378), 286 states have internal predecessors, (378), 129 states have call successors, (129), 74 states have call predecessors, (129), 70 states have return successors, (124), 124 states have call predecessors, (124), 124 states have call successors, (124) [2023-04-01 11:54:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 631 transitions. [2023-04-01 11:54:32,831 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 631 transitions. Word has length 158 [2023-04-01 11:54:32,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:54:32,832 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 631 transitions. [2023-04-01 11:54:32,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 11:54:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 631 transitions. [2023-04-01 11:54:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-01 11:54:32,835 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:54:32,835 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:54:32,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 11:54:32,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:54:32,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:54:32,835 INFO L85 PathProgramCache]: Analyzing trace with hash 614256279, now seen corresponding path program 1 times [2023-04-01 11:54:32,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:54:32,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747296703] [2023-04-01 11:54:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:32,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:54:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:33,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:33,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:54:33,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747296703] [2023-04-01 11:54:33,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747296703] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:54:33,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860867931] [2023-04-01 11:54:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:54:33,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:54:33,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:54:33,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:54:33,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:54:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:54:33,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 11:54:33,574 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:54:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:33,633 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:54:33,825 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-01 11:54:33,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860867931] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:54:33,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2009060951] [2023-04-01 11:54:33,868 INFO L159 IcfgInterpreter]: Started Sifa with 146 locations of interest [2023-04-01 11:54:33,869 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:54:33,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:54:33,875 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:54:33,875 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:54:42,649 WARN L223 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 506 DAG size of output: 506 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:54:48,802 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 340 for LOIs [2023-04-01 11:54:49,332 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 597 for LOIs [2023-04-01 11:55:01,651 WARN L223 SmtUtils]: Spent 10.21s on a formula simplification. DAG size of input: 597 DAG size of output: 597 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:55:11,835 WARN L223 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 597 DAG size of output: 597 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:55:22,197 WARN L223 SmtUtils]: Spent 10.36s on a formula simplification. DAG size of input: 597 DAG size of output: 597 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:55:33,000 WARN L223 SmtUtils]: Spent 10.80s on a formula simplification. DAG size of input: 597 DAG size of output: 597 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)