java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:42,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:42,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:42,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:42,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:42,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:42,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:42,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:42,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:42,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:42,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:42,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:42,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:42,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:42,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:42,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:42,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:42,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:42,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:42,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:42,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:42,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:42,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:42,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:42,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:42,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:42,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:42,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:42,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:42,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:42,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:42,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:42,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:42,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:42,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:42,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:42,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:42,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:42,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:42,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:42,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:42,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:09:42,268 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:42,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:42,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:42,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:42,270 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:42,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:42,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:42,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:42,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:42,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:42,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:42,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:42,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:42,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:42,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:42,273 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:42,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:42,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:42,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:42,275 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:42,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:42,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:42,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:42,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:42,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:42,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:42,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:42,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:42,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:09:42,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:42,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:42,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:42,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:42,572 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:42,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-10-13 23:09:42,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03253a01a/75563fa1462e413bae944abdd4d6341c/FLAGf26dee119 [2019-10-13 23:09:43,270 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:43,271 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product27.cil.c [2019-10-13 23:09:43,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03253a01a/75563fa1462e413bae944abdd4d6341c/FLAGf26dee119 [2019-10-13 23:09:43,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03253a01a/75563fa1462e413bae944abdd4d6341c [2019-10-13 23:09:43,487 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:43,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:43,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:43,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:43,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:43,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:43" (1/1) ... [2019-10-13 23:09:43,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60903e1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:43, skipping insertion in model container [2019-10-13 23:09:43,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:43" (1/1) ... [2019-10-13 23:09:43,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:43,568 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:44,311 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:44,330 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:44,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:44,621 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:44,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44 WrapperNode [2019-10-13 23:09:44,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:44,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:44,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:44,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:44,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... [2019-10-13 23:09:44,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:44,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:44,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:44,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:44,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:44,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:44,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:09:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:44,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:44,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:44,907 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:44,908 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:44,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:44,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:44,914 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:44,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:44,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:44,917 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 23:09:44,920 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:09:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:44,921 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:44,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:09:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:44,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:09:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:44,933 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:44,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:44,935 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:44,938 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:44,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:44,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:44,941 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:44,942 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:44,943 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:44,944 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:44,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:44,946 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:44,947 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:44,948 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:44,949 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:44,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:44,951 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:44,952 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:44,953 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:44,954 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:44,955 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:44,956 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:44,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:49,775 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:49,776 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:49,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:49 BoogieIcfgContainer [2019-10-13 23:09:49,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:49,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:49,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:49,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:49,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:43" (1/3) ... [2019-10-13 23:09:49,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9d3c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:49, skipping insertion in model container [2019-10-13 23:09:49,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:44" (2/3) ... [2019-10-13 23:09:49,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9d3c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:49, skipping insertion in model container [2019-10-13 23:09:49,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:49" (3/3) ... [2019-10-13 23:09:49,842 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2019-10-13 23:09:49,855 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:49,866 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:49,879 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:49,917 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:49,917 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:49,917 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:49,917 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:49,917 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:49,917 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:49,918 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:49,918 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:49,947 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states. [2019-10-13 23:09:49,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-13 23:09:49,965 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:49,967 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:49,969 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:49,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:49,975 INFO L82 PathProgramCache]: Analyzing trace with hash -721341714, now seen corresponding path program 1 times [2019-10-13 23:09:49,985 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:49,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555309082] [2019-10-13 23:09:49,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:49,986 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:49,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:50,730 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555309082] [2019-10-13 23:09:50,731 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:50,732 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:50,732 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911500605] [2019-10-13 23:09:50,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:50,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:50,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:50,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:50,757 INFO L87 Difference]: Start difference. First operand 439 states. Second operand 2 states. [2019-10-13 23:09:50,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:50,832 INFO L93 Difference]: Finished difference Result 653 states and 778 transitions. [2019-10-13 23:09:50,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:50,834 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 141 [2019-10-13 23:09:50,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:50,857 INFO L225 Difference]: With dead ends: 653 [2019-10-13 23:09:50,857 INFO L226 Difference]: Without dead ends: 412 [2019-10-13 23:09:50,864 INFO L600 BasicCegarLoop]: 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 [2019-10-13 23:09:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2019-10-13 23:09:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2019-10-13 23:09:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-13 23:09:51,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 485 transitions. [2019-10-13 23:09:51,008 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 485 transitions. Word has length 141 [2019-10-13 23:09:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:51,011 INFO L462 AbstractCegarLoop]: Abstraction has 412 states and 485 transitions. [2019-10-13 23:09:51,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 485 transitions. [2019-10-13 23:09:51,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-13 23:09:51,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:51,025 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:51,025 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:51,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:51,026 INFO L82 PathProgramCache]: Analyzing trace with hash -961450106, now seen corresponding path program 1 times [2019-10-13 23:09:51,026 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:51,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141229481] [2019-10-13 23:09:51,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:51,397 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:51,398 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141229481] [2019-10-13 23:09:51,398 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:51,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:51,399 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381634119] [2019-10-13 23:09:51,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:51,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:51,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:51,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:51,402 INFO L87 Difference]: Start difference. First operand 412 states and 485 transitions. Second operand 3 states. [2019-10-13 23:09:51,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:51,484 INFO L93 Difference]: Finished difference Result 638 states and 743 transitions. [2019-10-13 23:09:51,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:51,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-13 23:09:51,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:51,494 INFO L225 Difference]: With dead ends: 638 [2019-10-13 23:09:51,494 INFO L226 Difference]: Without dead ends: 414 [2019-10-13 23:09:51,501 INFO L600 BasicCegarLoop]: 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 [2019-10-13 23:09:51,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2019-10-13 23:09:51,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2019-10-13 23:09:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-10-13 23:09:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 487 transitions. [2019-10-13 23:09:51,535 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 487 transitions. Word has length 142 [2019-10-13 23:09:51,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:51,536 INFO L462 AbstractCegarLoop]: Abstraction has 414 states and 487 transitions. [2019-10-13 23:09:51,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 487 transitions. [2019-10-13 23:09:51,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:09:51,539 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:51,540 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:51,540 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:51,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:51,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1649681840, now seen corresponding path program 1 times [2019-10-13 23:09:51,541 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:51,541 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160589883] [2019-10-13 23:09:51,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:09:51,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160589883] [2019-10-13 23:09:51,812 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:51,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:51,813 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239386760] [2019-10-13 23:09:51,813 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:51,814 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:51,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:51,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:51,814 INFO L87 Difference]: Start difference. First operand 414 states and 487 transitions. Second operand 3 states. [2019-10-13 23:09:51,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:51,865 INFO L93 Difference]: Finished difference Result 814 states and 987 transitions. [2019-10-13 23:09:51,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:51,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-13 23:09:51,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:51,872 INFO L225 Difference]: With dead ends: 814 [2019-10-13 23:09:51,872 INFO L226 Difference]: Without dead ends: 458 [2019-10-13 23:09:51,875 INFO L600 BasicCegarLoop]: 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 [2019-10-13 23:09:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2019-10-13 23:09:51,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 457. [2019-10-13 23:09:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-13 23:09:51,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 561 transitions. [2019-10-13 23:09:51,924 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 561 transitions. Word has length 154 [2019-10-13 23:09:51,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:51,928 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 561 transitions. [2019-10-13 23:09:51,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 561 transitions. [2019-10-13 23:09:51,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 23:09:51,939 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:51,940 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:51,940 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:51,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1213551604, now seen corresponding path program 1 times [2019-10-13 23:09:51,941 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:51,943 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509403560] [2019-10-13 23:09:51,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,943 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:51,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:09:52,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509403560] [2019-10-13 23:09:52,720 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:52,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:52,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697200331] [2019-10-13 23:09:52,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:52,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:52,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:52,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:52,724 INFO L87 Difference]: Start difference. First operand 457 states and 561 transitions. Second operand 25 states. [2019-10-13 23:10:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:08,692 INFO L93 Difference]: Finished difference Result 1256 states and 1503 transitions. [2019-10-13 23:10:08,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-13 23:10:08,693 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 155 [2019-10-13 23:10:08,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:08,702 INFO L225 Difference]: With dead ends: 1256 [2019-10-13 23:10:08,702 INFO L226 Difference]: Without dead ends: 1032 [2019-10-13 23:10:08,705 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=404, Invalid=3018, Unknown=0, NotChecked=0, Total=3422 [2019-10-13 23:10:08,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1032 states. [2019-10-13 23:10:08,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1032 to 1021. [2019-10-13 23:10:08,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2019-10-13 23:10:08,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1218 transitions. [2019-10-13 23:10:08,834 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1218 transitions. Word has length 155 [2019-10-13 23:10:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:08,836 INFO L462 AbstractCegarLoop]: Abstraction has 1021 states and 1218 transitions. [2019-10-13 23:10:08,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:10:08,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1218 transitions. [2019-10-13 23:10:08,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 23:10:08,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:08,842 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:08,842 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:08,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1044904695, now seen corresponding path program 1 times [2019-10-13 23:10:08,843 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:08,843 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686723819] [2019-10-13 23:10:08,844 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:08,844 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:08,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:10:09,046 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686723819] [2019-10-13 23:10:09,047 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497085129] [2019-10-13 23:10:09,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:10:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:09,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 2877 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:09,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:10:09,776 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:10:10,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1776676493] [2019-10-13 23:10:10,104 INFO L162 IcfgInterpreter]: Started Sifa with 150 locations of interest [2019-10-13 23:10:10,104 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:10,117 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:10,136 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:10,136 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs