/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_spec11_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:46:34,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:46:34,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:46:34,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:46:34,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:46:34,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:46:34,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:46:34,157 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:46:34,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:46:34,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:46:34,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:46:34,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:46:34,161 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:46:34,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:46:34,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:46:34,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:46:34,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:46:34,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:46:34,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:46:34,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:46:34,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:46:34,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:46:34,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:46:34,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:46:34,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 11:46:34,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 11:46:34,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 11:46:34,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 11:46:34,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 11:46:34,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 11:46:34,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:46:34,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:46:34,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:46:34,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:46:34,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:46:34,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:46:34,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:46:34,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:46:34,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:46:34,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:46:34,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:46:34,189 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 11:46:34,216 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:46:34,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:46:34,216 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:46:34,216 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:46:34,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:46:34,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:46:34,217 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:46:34,217 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:46:34,218 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:46:34,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:46:34,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:46:34,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:46:34,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:46:34,219 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:46:34,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:46:34,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:46:34,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:46:34,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:46:34,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:46:34,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:46:34,226 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:46:34,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:46:34,227 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:46:34,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:46:34,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:46:34,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:46:34,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:46:34,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:46:34,228 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:46:34,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:46:34,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:46:34,229 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:46:34,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:46:34,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:46:34,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:46:34,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:46:34,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:46:34,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:46:34,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:46:34,470 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:46:34,471 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:46:34,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-04-01 11:46:35,672 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:46:35,953 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:46:35,954 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec11_product30.cil.c [2023-04-01 11:46:35,977 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ccc7e79/c69610a14fbc4b2da52b7c6b9e6ec5bd/FLAG897837869 [2023-04-01 11:46:35,988 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71ccc7e79/c69610a14fbc4b2da52b7c6b9e6ec5bd [2023-04-01 11:46:35,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:46:35,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:46:35,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:46:35,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:46:35,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:46:35,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:46:35" (1/1) ... [2023-04-01 11:46:35,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd846ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:35, skipping insertion in model container [2023-04-01 11:46:35,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:46:35" (1/1) ... [2023-04-01 11:46:36,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:46:36,048 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:46:36,422 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_spec11_product30.cil.c[29507,29520] [2023-04-01 11:46:36,532 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:46:36,561 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:46:36,617 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_spec11_product30.cil.c[29507,29520] [2023-04-01 11:46:36,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:46:36,673 WARN L667 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 11:46:36,679 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:46:36,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36 WrapperNode [2023-04-01 11:46:36,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:46:36,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:46:36,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:46:36,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:46:36,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:46:36,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:46:36,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:46:36,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:46:36,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (1/1) ... [2023-04-01 11:46:36,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:46:36,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:46:36,875 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 11:46:36,897 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 11:46:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:46:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:46:36,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2023-04-01 11:46:36,916 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2023-04-01 11:46:36,917 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-04-01 11:46:36,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-04-01 11:46:36,919 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-04-01 11:46:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-04-01 11:46:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-04-01 11:46:36,920 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2023-04-01 11:46:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-04-01 11:46:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2023-04-01 11:46:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-04-01 11:46:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2023-04-01 11:46:36,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-04-01 11:46:36,922 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2023-04-01 11:46:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2023-04-01 11:46:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 11:46:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 11:46:36,923 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2023-04-01 11:46:36,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2023-04-01 11:46:36,925 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2023-04-01 11:46:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2023-04-01 11:46:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2023-04-01 11:46:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2023-04-01 11:46:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 11:46:36,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 11:46:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 11:46:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 11:46:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 11:46:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 11:46:36,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 11:46:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2023-04-01 11:46:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2023-04-01 11:46:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2023-04-01 11:46:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2023-04-01 11:46:36,928 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2023-04-01 11:46:36,929 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2023-04-01 11:46:36,930 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-04-01 11:46:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-04-01 11:46:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2023-04-01 11:46:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2023-04-01 11:46:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2023-04-01 11:46:36,931 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-04-01 11:46:36,931 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:46:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:46:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:46:36,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:46:36,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:46:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 11:46:36,935 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2023-04-01 11:46:36,939 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-04-01 11:46:36,940 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2023-04-01 11:46:36,941 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2023-04-01 11:46:36,942 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-04-01 11:46:36,943 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2023-04-01 11:46:36,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2023-04-01 11:46:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2023-04-01 11:46:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2023-04-01 11:46:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-04-01 11:46:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2023-04-01 11:46:36,945 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2023-04-01 11:46:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2023-04-01 11:46:36,946 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2023-04-01 11:46:36,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2023-04-01 11:46:36,948 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 11:46:36,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-04-01 11:46:36,950 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:46:36,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:46:37,247 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:46:37,251 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:46:38,487 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:46:39,205 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:46:39,206 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-04-01 11:46:39,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:46:39 BoogieIcfgContainer [2023-04-01 11:46:39,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:46:39,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:46:39,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:46:39,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:46:39,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:46:35" (1/3) ... [2023-04-01 11:46:39,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4274f8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:46:39, skipping insertion in model container [2023-04-01 11:46:39,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:46:36" (2/3) ... [2023-04-01 11:46:39,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4274f8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:46:39, skipping insertion in model container [2023-04-01 11:46:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:46:39" (3/3) ... [2023-04-01 11:46:39,220 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product30.cil.c [2023-04-01 11:46:39,236 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:46:39,237 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:46:39,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:46:39,311 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;@14941205, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:46:39,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:46:39,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 200 states have (on average 1.2) internal successors, (240), 209 states have internal predecessors, (240), 113 states have call successors, (113), 74 states have call predecessors, (113), 74 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-01 11:46:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-01 11:46:39,347 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:46:39,348 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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, 1] [2023-04-01 11:46:39,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:46:39,355 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:46:39,355 INFO L85 PathProgramCache]: Analyzing trace with hash 392028869, now seen corresponding path program 1 times [2023-04-01 11:46:39,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:46:39,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6030402] [2023-04-01 11:46:39,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:39,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:46:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:39,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:39,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:46:39,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6030402] [2023-04-01 11:46:39,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6030402] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:46:39,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:46:39,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 11:46:39,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619732787] [2023-04-01 11:46:39,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:46:39,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 11:46:39,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:46:39,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 11:46:39,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 11:46:39,938 INFO L87 Difference]: Start difference. First operand has 396 states, 200 states have (on average 1.2) internal successors, (240), 209 states have internal predecessors, (240), 113 states have call successors, (113), 74 states have call predecessors, (113), 74 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:46:40,097 INFO L93 Difference]: Finished difference Result 558 states and 662 transitions. [2023-04-01 11:46:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 11:46:40,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 174 [2023-04-01 11:46:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:46:40,122 INFO L225 Difference]: With dead ends: 558 [2023-04-01 11:46:40,122 INFO L226 Difference]: Without dead ends: 354 [2023-04-01 11:46:40,129 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 11:46:40,132 INFO L413 NwaCegarLoop]: 387 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:46:40,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 387 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:46:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-04-01 11:46:40,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2023-04-01 11:46:40,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 182 states have (on average 1.1978021978021978) internal successors, (218), 188 states have internal predecessors, (218), 102 states have call successors, (102), 73 states have call predecessors, (102), 69 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-01 11:46:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 417 transitions. [2023-04-01 11:46:40,201 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 417 transitions. Word has length 174 [2023-04-01 11:46:40,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:46:40,202 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 417 transitions. [2023-04-01 11:46:40,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.0) internal successors, (76), 2 states have internal predecessors, (76), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:40,203 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 417 transitions. [2023-04-01 11:46:40,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-01 11:46:40,207 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:46:40,207 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2023-04-01 11:46:40,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 11:46:40,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:46:40,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:46:40,208 INFO L85 PathProgramCache]: Analyzing trace with hash -49668429, now seen corresponding path program 1 times [2023-04-01 11:46:40,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:46:40,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298867940] [2023-04-01 11:46:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:46:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:40,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:46:40,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298867940] [2023-04-01 11:46:40,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298867940] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:46:40,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:46:40,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:46:40,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970610878] [2023-04-01 11:46:40,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:46:40,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:46:40,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:46:40,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:46:40,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:46:40,586 INFO L87 Difference]: Start difference. First operand 354 states and 417 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:46:40,710 INFO L93 Difference]: Finished difference Result 543 states and 629 transitions. [2023-04-01 11:46:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:46:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 175 [2023-04-01 11:46:40,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:46:40,714 INFO L225 Difference]: With dead ends: 543 [2023-04-01 11:46:40,714 INFO L226 Difference]: Without dead ends: 356 [2023-04-01 11:46:40,719 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 11:46:40,721 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 0 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:46:40,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 754 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:46:40,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2023-04-01 11:46:40,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2023-04-01 11:46:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 184 states have (on average 1.1956521739130435) internal successors, (220), 190 states have internal predecessors, (220), 102 states have call successors, (102), 73 states have call predecessors, (102), 69 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-04-01 11:46:40,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 419 transitions. [2023-04-01 11:46:40,764 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 419 transitions. Word has length 175 [2023-04-01 11:46:40,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:46:40,765 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 419 transitions. [2023-04-01 11:46:40,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:40,766 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 419 transitions. [2023-04-01 11:46:40,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-01 11:46:40,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:46:40,773 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:46:40,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 11:46:40,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:46:40,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:46:40,774 INFO L85 PathProgramCache]: Analyzing trace with hash -648388130, now seen corresponding path program 1 times [2023-04-01 11:46:40,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:46:40,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694232282] [2023-04-01 11:46:40,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:40,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:46:40,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:41,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:46:41,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694232282] [2023-04-01 11:46:41,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694232282] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:46:41,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:46:41,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:46:41,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081238774] [2023-04-01 11:46:41,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:46:41,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:46:41,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:46:41,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:46:41,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:46:41,044 INFO L87 Difference]: Start difference. First operand 356 states and 419 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:41,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:46:41,140 INFO L93 Difference]: Finished difference Result 694 states and 845 transitions. [2023-04-01 11:46:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:46:41,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 184 [2023-04-01 11:46:41,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:46:41,145 INFO L225 Difference]: With dead ends: 694 [2023-04-01 11:46:41,145 INFO L226 Difference]: Without dead ends: 396 [2023-04-01 11:46:41,148 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 11:46:41,152 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 52 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:46:41,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 752 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:46:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2023-04-01 11:46:41,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 395. [2023-04-01 11:46:41,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 221 states have internal predecessors, (272), 110 states have call successors, (110), 73 states have call predecessors, (110), 69 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2023-04-01 11:46:41,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 487 transitions. [2023-04-01 11:46:41,181 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 487 transitions. Word has length 184 [2023-04-01 11:46:41,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:46:41,181 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 487 transitions. [2023-04-01 11:46:41,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:41,182 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 487 transitions. [2023-04-01 11:46:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-04-01 11:46:41,186 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:46:41,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:46:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 11:46:41,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:46:41,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:46:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -111814741, now seen corresponding path program 1 times [2023-04-01 11:46:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:46:41,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862181514] [2023-04-01 11:46:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:41,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:46:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:41,383 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:41,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:46:41,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862181514] [2023-04-01 11:46:41,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862181514] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:46:41,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:46:41,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 11:46:41,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139845706] [2023-04-01 11:46:41,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:46:41,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 11:46:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:46:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 11:46:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 11:46:41,386 INFO L87 Difference]: Start difference. First operand 395 states and 487 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:46:41,476 INFO L93 Difference]: Finished difference Result 808 states and 1044 transitions. [2023-04-01 11:46:41,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 11:46:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 185 [2023-04-01 11:46:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:46:41,480 INFO L225 Difference]: With dead ends: 808 [2023-04-01 11:46:41,480 INFO L226 Difference]: Without dead ends: 471 [2023-04-01 11:46:41,481 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 11:46:41,488 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 50 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:46:41,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 752 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:46:41,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-04-01 11:46:41,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 470. [2023-04-01 11:46:41,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 275 states have (on average 1.3527272727272728) internal successors, (372), 281 states have internal predecessors, (372), 125 states have call successors, (125), 73 states have call predecessors, (125), 69 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2023-04-01 11:46:41,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 617 transitions. [2023-04-01 11:46:41,513 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 617 transitions. Word has length 185 [2023-04-01 11:46:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:46:41,514 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 617 transitions. [2023-04-01 11:46:41,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-04-01 11:46:41,514 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 617 transitions. [2023-04-01 11:46:41,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-04-01 11:46:41,517 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:46:41,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:46:41,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 11:46:41,517 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:46:41,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:46:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1331505646, now seen corresponding path program 1 times [2023-04-01 11:46:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:46:41,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697740412] [2023-04-01 11:46:41,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:41,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:46:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:41,821 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:41,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:46:41,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697740412] [2023-04-01 11:46:41,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697740412] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 11:46:41,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675619749] [2023-04-01 11:46:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:46:41,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:46:41,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:46:41,826 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 11:46:41,827 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 11:46:42,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:46:42,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 2524 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 11:46:42,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:46:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:42,493 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:46:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-01 11:46:42,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675619749] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:46:42,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1797387122] [2023-04-01 11:46:42,732 INFO L159 IcfgInterpreter]: Started Sifa with 165 locations of interest [2023-04-01 11:46:42,733 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:46:42,736 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:46:42,740 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:46:42,741 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:46:52,827 WARN L223 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:46:59,001 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 337 for LOIs [2023-04-01 11:46:59,592 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 576 for LOIs [2023-04-01 11:47:12,603 WARN L223 SmtUtils]: Spent 10.83s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:47:22,079 WARN L223 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:47:31,447 WARN L223 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-01 11:47:42,303 WARN L223 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 576 DAG size of output: 576 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)