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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:50,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:50,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:50,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:50,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:50,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:50,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:50,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:50,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:50,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:50,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:50,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:50,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:50,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:50,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:50,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:50,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:50,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:50,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:50,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:50,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:50,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:50,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:50,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:50,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:50,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:50,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:50,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:50,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:50,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:50,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:50,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:50,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:50,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:50,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:50,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:50,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:50,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:50,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:50,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:50,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:50,436 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 23:09:50,457 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:50,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:50,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:50,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:50,460 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:50,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:50,460 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:50,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:50,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:50,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:50,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:50,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:50,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:50,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:50,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:50,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:50,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:50,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:50,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:50,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:50,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:50,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:50,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:50,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:50,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:50,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:50,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:50,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:50,470 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 23:09:50,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:50,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:50,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:50,752 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:50,752 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:50,753 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2019-10-13 23:09:50,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea211bddd/47d3fa0d67e043dc9ddddb0f1f146c72/FLAGc83c6aa63 [2019-10-13 23:09:51,428 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:51,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product32.cil.c [2019-10-13 23:09:51,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea211bddd/47d3fa0d67e043dc9ddddb0f1f146c72/FLAGc83c6aa63 [2019-10-13 23:09:51,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea211bddd/47d3fa0d67e043dc9ddddb0f1f146c72 [2019-10-13 23:09:51,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:51,664 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:51,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:51,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:51,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:51,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba36926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:51, skipping insertion in model container [2019-10-13 23:09:51,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:51" (1/1) ... [2019-10-13 23:09:51,680 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:51,757 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:52,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:52,466 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:52,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:52,738 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:52,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52 WrapperNode [2019-10-13 23:09:52,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:52,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:52,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:52,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:52,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (1/1) ... [2019-10-13 23:09:52,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:52,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:52,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:52,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:52,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (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 23:09:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:52,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:52,991 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:52,991 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:09:52,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:09:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:53,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:53,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:53,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:53,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:53,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:53,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:53,034 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:53,035 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 23:09:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:09:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:53,040 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:53,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:53,042 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:53,043 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:53,044 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:57,641 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:57,641 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:57,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:57 BoogieIcfgContainer [2019-10-13 23:09:57,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:57,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:57,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:57,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:57,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:51" (1/3) ... [2019-10-13 23:09:57,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221a4fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:57, skipping insertion in model container [2019-10-13 23:09:57,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:52" (2/3) ... [2019-10-13 23:09:57,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221a4fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:57, skipping insertion in model container [2019-10-13 23:09:57,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:57" (3/3) ... [2019-10-13 23:09:57,659 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2019-10-13 23:09:57,669 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:57,680 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:57,691 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:57,731 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:57,731 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:57,732 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:57,734 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:57,734 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:57,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:57,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:57,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:57,771 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states. [2019-10-13 23:09:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:09:57,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,793 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:57,795 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1947175262, now seen corresponding path program 1 times [2019-10-13 23:09:57,808 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108575468] [2019-10-13 23:09:57,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,392 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:58,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108575468] [2019-10-13 23:09:58,393 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:58,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243638024] [2019-10-13 23:09:58,401 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:58,401 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:58,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:58,417 INFO L87 Difference]: Start difference. First operand 455 states. Second operand 2 states. [2019-10-13 23:09:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:58,523 INFO L93 Difference]: Finished difference Result 650 states and 785 transitions. [2019-10-13 23:09:58,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:58,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 159 [2019-10-13 23:09:58,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:58,548 INFO L225 Difference]: With dead ends: 650 [2019-10-13 23:09:58,549 INFO L226 Difference]: Without dead ends: 407 [2019-10-13 23:09:58,561 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 23:09:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2019-10-13 23:09:58,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2019-10-13 23:09:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-13 23:09:58,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 484 transitions. [2019-10-13 23:09:58,708 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 484 transitions. Word has length 159 [2019-10-13 23:09:58,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:58,711 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 484 transitions. [2019-10-13 23:09:58,711 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:58,711 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 484 transitions. [2019-10-13 23:09:58,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:09:58,721 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:58,722 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:58,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:58,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:58,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1130368248, now seen corresponding path program 1 times [2019-10-13 23:09:58,723 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:58,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471513766] [2019-10-13 23:09:58,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:58,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,005 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:59,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471513766] [2019-10-13 23:09:59,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:59,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505781941] [2019-10-13 23:09:59,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:59,010 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:59,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,011 INFO L87 Difference]: Start difference. First operand 407 states and 484 transitions. Second operand 3 states. [2019-10-13 23:09:59,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:59,175 INFO L93 Difference]: Finished difference Result 635 states and 748 transitions. [2019-10-13 23:09:59,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:59,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-13 23:09:59,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:59,183 INFO L225 Difference]: With dead ends: 635 [2019-10-13 23:09:59,183 INFO L226 Difference]: Without dead ends: 409 [2019-10-13 23:09:59,186 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 23:09:59,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2019-10-13 23:09:59,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2019-10-13 23:09:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-10-13 23:09:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 486 transitions. [2019-10-13 23:09:59,211 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 486 transitions. Word has length 160 [2019-10-13 23:09:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:59,212 INFO L462 AbstractCegarLoop]: Abstraction has 409 states and 486 transitions. [2019-10-13 23:09:59,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 486 transitions. [2019-10-13 23:09:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-13 23:09:59,216 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:59,217 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:59,217 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:59,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:59,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2037557988, now seen corresponding path program 1 times [2019-10-13 23:09:59,218 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:59,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748831602] [2019-10-13 23:09:59,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,219 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,448 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:59,448 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748831602] [2019-10-13 23:09:59,449 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,449 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:59,449 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689765055] [2019-10-13 23:09:59,450 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:59,451 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:59,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,452 INFO L87 Difference]: Start difference. First operand 409 states and 486 transitions. Second operand 3 states. [2019-10-13 23:09:59,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:59,512 INFO L93 Difference]: Finished difference Result 802 states and 982 transitions. [2019-10-13 23:09:59,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:59,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2019-10-13 23:09:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:59,523 INFO L225 Difference]: With dead ends: 802 [2019-10-13 23:09:59,523 INFO L226 Difference]: Without dead ends: 451 [2019-10-13 23:09:59,525 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 23:09:59,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2019-10-13 23:09:59,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 450. [2019-10-13 23:09:59,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-10-13 23:09:59,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 557 transitions. [2019-10-13 23:09:59,566 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 557 transitions. Word has length 169 [2019-10-13 23:09:59,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:59,567 INFO L462 AbstractCegarLoop]: Abstraction has 450 states and 557 transitions. [2019-10-13 23:09:59,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:59,567 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 557 transitions. [2019-10-13 23:09:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 23:09:59,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:59,574 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:59,575 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:59,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1532345087, now seen corresponding path program 1 times [2019-10-13 23:09:59,576 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:59,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635851282] [2019-10-13 23:09:59,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:59,808 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635851282] [2019-10-13 23:09:59,808 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:59,808 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:59,809 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612038999] [2019-10-13 23:09:59,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:59,810 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:59,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:59,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:59,811 INFO L87 Difference]: Start difference. First operand 450 states and 557 transitions. Second operand 3 states. [2019-10-13 23:09:59,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:59,850 INFO L93 Difference]: Finished difference Result 922 states and 1190 transitions. [2019-10-13 23:09:59,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:59,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 23:09:59,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:59,856 INFO L225 Difference]: With dead ends: 922 [2019-10-13 23:09:59,856 INFO L226 Difference]: Without dead ends: 530 [2019-10-13 23:09:59,858 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 23:09:59,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2019-10-13 23:09:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 529. [2019-10-13 23:09:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2019-10-13 23:09:59,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 693 transitions. [2019-10-13 23:09:59,884 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 693 transitions. Word has length 170 [2019-10-13 23:09:59,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:59,886 INFO L462 AbstractCegarLoop]: Abstraction has 529 states and 693 transitions. [2019-10-13 23:09:59,887 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 693 transitions. [2019-10-13 23:09:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 23:09:59,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:59,891 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:59,891 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:59,891 INFO L82 PathProgramCache]: Analyzing trace with hash -409055810, now seen corresponding path program 1 times [2019-10-13 23:09:59,892 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:59,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553399228] [2019-10-13 23:09:59,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:59,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:00,680 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:10:00,680 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553399228] [2019-10-13 23:10:00,681 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:10:00,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2019-10-13 23:10:00,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585305138] [2019-10-13 23:10:00,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-10-13 23:10:00,683 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:10:00,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-10-13 23:10:00,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2019-10-13 23:10:00,685 INFO L87 Difference]: Start difference. First operand 529 states and 693 transitions. Second operand 27 states. [2019-10-13 23:10:16,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:16,142 INFO L93 Difference]: Finished difference Result 1332 states and 1658 transitions. [2019-10-13 23:10:16,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-13 23:10:16,143 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 173 [2019-10-13 23:10:16,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:16,152 INFO L225 Difference]: With dead ends: 1332 [2019-10-13 23:10:16,152 INFO L226 Difference]: Without dead ends: 1106 [2019-10-13 23:10:16,156 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 839 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=434, Invalid=3472, Unknown=0, NotChecked=0, Total=3906 [2019-10-13 23:10:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2019-10-13 23:10:16,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1095. [2019-10-13 23:10:16,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2019-10-13 23:10:16,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1363 transitions. [2019-10-13 23:10:16,226 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1363 transitions. Word has length 173 [2019-10-13 23:10:16,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:16,227 INFO L462 AbstractCegarLoop]: Abstraction has 1095 states and 1363 transitions. [2019-10-13 23:10:16,227 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-10-13 23:10:16,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1363 transitions. [2019-10-13 23:10:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:10:16,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:16,231 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2019-10-13 23:10:16,232 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:16,232 INFO L82 PathProgramCache]: Analyzing trace with hash -642290405, now seen corresponding path program 1 times [2019-10-13 23:10:16,232 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:16,232 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918918847] [2019-10-13 23:10:16,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:16,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:10:18,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918918847] [2019-10-13 23:10:18,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108588221] [2019-10-13 23:10:18,740 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 23:10:19,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:19,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:19,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:19,590 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:19,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:19,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1831516532] [2019-10-13 23:10:20,017 INFO L162 IcfgInterpreter]: Started Sifa with 162 locations of interest [2019-10-13 23:10:20,017 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:20,024 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:20,030 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:20,031 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs