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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:22,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:22,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:22,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:22,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:22,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:22,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:22,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:22,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:22,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:22,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:22,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:22,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:22,703 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:22,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:22,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:22,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:22,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:22,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:22,717 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:22,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:22,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:22,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:22,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:22,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:22,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:22,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:22,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:22,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:22,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:22,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:22,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:22,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:22,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:22,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:22,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:22,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:22,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:22,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:22,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:22,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:22,743 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 [2019-10-15 01:13:22,775 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:22,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:22,782 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:22,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:22,783 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:22,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:22,783 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:22,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:22,784 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:22,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:22,785 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:22,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:22,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:22,785 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:22,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:22,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:22,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:22,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:22,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:22,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:22,787 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:22,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:22,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:22,788 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:13:23,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:23,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:23,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:23,079 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:23,079 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:23,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c [2019-10-15 01:13:23,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8313711b/b048d475a7cc48c5b4351b699537e86a/FLAG9473de09e [2019-10-15 01:13:23,752 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:23,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c [2019-10-15 01:13:23,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8313711b/b048d475a7cc48c5b4351b699537e86a/FLAG9473de09e [2019-10-15 01:13:23,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8313711b/b048d475a7cc48c5b4351b699537e86a [2019-10-15 01:13:24,003 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:24,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:24,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:24,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:24,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:24,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:23" (1/1) ... [2019-10-15 01:13:24,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3283d116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:24, skipping insertion in model container [2019-10-15 01:13:24,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:23" (1/1) ... [2019-10-15 01:13:24,023 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:24,124 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:25,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:25,056 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:25,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:25,339 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:25,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25 WrapperNode [2019-10-15 01:13:25,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:25,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:25,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:25,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:25,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (1/1) ... [2019-10-15 01:13:25,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:25,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:25,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:25,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:25,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (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 [2019-10-15 01:13:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:13:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:25,626 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:25,627 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:13:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:13:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:25,630 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:13:25,632 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:25,633 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:25,634 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:25,635 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:25,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:25,638 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:25,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:25,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:25,641 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:25,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:25,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:25,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:13:25,645 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:25,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:25,647 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:25,648 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:25,649 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:13:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:13:25,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:25,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:25,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:25,651 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:25,652 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:25,653 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:13:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:25,654 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:25,655 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:25,655 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:25,658 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:25,659 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:25,660 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:25,667 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:25,668 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:25,669 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:25,670 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:13:25,671 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:13:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:25,674 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:25,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:25,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:25,677 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:25,678 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:25,679 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:25,680 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:13:25,681 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:25,682 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:25,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:25,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:27,941 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:27,941 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:27,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:27 BoogieIcfgContainer [2019-10-15 01:13:27,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:27,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:27,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:27,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:27,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:23" (1/3) ... [2019-10-15 01:13:27,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eb1ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:27, skipping insertion in model container [2019-10-15 01:13:27,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:25" (2/3) ... [2019-10-15 01:13:27,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31eb1ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:27, skipping insertion in model container [2019-10-15 01:13:27,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:27" (3/3) ... [2019-10-15 01:13:27,952 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product32.cil.c [2019-10-15 01:13:27,966 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:27,977 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:27,989 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:28,026 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:28,027 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:28,027 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:28,027 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:28,027 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:28,030 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:28,030 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:28,030 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:28,072 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states. [2019-10-15 01:13:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 01:13:28,106 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:28,108 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:28,109 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:28,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:28,114 INFO L82 PathProgramCache]: Analyzing trace with hash 759210105, now seen corresponding path program 1 times [2019-10-15 01:13:28,124 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:28,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826870873] [2019-10-15 01:13:28,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:28,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:28,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:28,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826870873] [2019-10-15 01:13:28,768 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:28,768 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:28,768 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959475052] [2019-10-15 01:13:28,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:28,775 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:28,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:28,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:28,792 INFO L87 Difference]: Start difference. First operand 637 states. Second operand 2 states. [2019-10-15 01:13:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:28,868 INFO L93 Difference]: Finished difference Result 904 states and 1227 transitions. [2019-10-15 01:13:28,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:28,870 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-15 01:13:28,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:28,910 INFO L225 Difference]: With dead ends: 904 [2019-10-15 01:13:28,910 INFO L226 Difference]: Without dead ends: 580 [2019-10-15 01:13:28,921 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 [2019-10-15 01:13:28,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-15 01:13:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2019-10-15 01:13:29,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-15 01:13:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 792 transitions. [2019-10-15 01:13:29,038 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 792 transitions. Word has length 167 [2019-10-15 01:13:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:29,040 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 792 transitions. [2019-10-15 01:13:29,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 792 transitions. [2019-10-15 01:13:29,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-15 01:13:29,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:29,047 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:29,048 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash -425552683, now seen corresponding path program 1 times [2019-10-15 01:13:29,048 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:29,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306832343] [2019-10-15 01:13:29,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:29,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306832343] [2019-10-15 01:13:29,359 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:29,359 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:29,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545687823] [2019-10-15 01:13:29,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:29,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:29,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:29,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:29,363 INFO L87 Difference]: Start difference. First operand 580 states and 792 transitions. Second operand 3 states. [2019-10-15 01:13:29,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:29,434 INFO L93 Difference]: Finished difference Result 887 states and 1192 transitions. [2019-10-15 01:13:29,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:29,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-15 01:13:29,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:29,443 INFO L225 Difference]: With dead ends: 887 [2019-10-15 01:13:29,445 INFO L226 Difference]: Without dead ends: 583 [2019-10-15 01:13:29,448 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 [2019-10-15 01:13:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-15 01:13:29,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 582. [2019-10-15 01:13:29,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 582 states. [2019-10-15 01:13:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 794 transitions. [2019-10-15 01:13:29,511 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 794 transitions. Word has length 168 [2019-10-15 01:13:29,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:29,511 INFO L462 AbstractCegarLoop]: Abstraction has 582 states and 794 transitions. [2019-10-15 01:13:29,512 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:29,512 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 794 transitions. [2019-10-15 01:13:29,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 01:13:29,516 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:29,516 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:29,517 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:29,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:29,517 INFO L82 PathProgramCache]: Analyzing trace with hash -102964987, now seen corresponding path program 1 times [2019-10-15 01:13:29,517 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:29,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515839280] [2019-10-15 01:13:29,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,518 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:29,673 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515839280] [2019-10-15 01:13:29,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:29,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:29,674 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194021030] [2019-10-15 01:13:29,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:29,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:29,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:29,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:29,676 INFO L87 Difference]: Start difference. First operand 582 states and 794 transitions. Second operand 3 states. [2019-10-15 01:13:29,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:29,714 INFO L93 Difference]: Finished difference Result 1142 states and 1589 transitions. [2019-10-15 01:13:29,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:29,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 01:13:29,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:29,720 INFO L225 Difference]: With dead ends: 1142 [2019-10-15 01:13:29,720 INFO L226 Difference]: Without dead ends: 625 [2019-10-15 01:13:29,722 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 [2019-10-15 01:13:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-10-15 01:13:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-10-15 01:13:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-10-15 01:13:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 866 transitions. [2019-10-15 01:13:29,761 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 866 transitions. Word has length 178 [2019-10-15 01:13:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:29,762 INFO L462 AbstractCegarLoop]: Abstraction has 624 states and 866 transitions. [2019-10-15 01:13:29,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:29,762 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 866 transitions. [2019-10-15 01:13:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:13:29,769 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:29,770 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:29,770 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash 739135623, now seen corresponding path program 1 times [2019-10-15 01:13:29,771 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:29,771 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147128706] [2019-10-15 01:13:29,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:30,114 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2019-10-15 01:13:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:30,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147128706] [2019-10-15 01:13:30,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:30,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:30,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708592641] [2019-10-15 01:13:30,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:30,157 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:30,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:30,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:30,159 INFO L87 Difference]: Start difference. First operand 624 states and 866 transitions. Second operand 3 states. [2019-10-15 01:13:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:30,231 INFO L93 Difference]: Finished difference Result 1265 states and 1800 transitions. [2019-10-15 01:13:30,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:30,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-15 01:13:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:30,242 INFO L225 Difference]: With dead ends: 1265 [2019-10-15 01:13:30,243 INFO L226 Difference]: Without dead ends: 706 [2019-10-15 01:13:30,245 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2019-10-15 01:13:30,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 705. [2019-10-15 01:13:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-10-15 01:13:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 1004 transitions. [2019-10-15 01:13:30,293 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 1004 transitions. Word has length 179 [2019-10-15 01:13:30,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:30,294 INFO L462 AbstractCegarLoop]: Abstraction has 705 states and 1004 transitions. [2019-10-15 01:13:30,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 1004 transitions. [2019-10-15 01:13:30,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:13:30,302 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:30,302 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:30,303 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:30,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:30,303 INFO L82 PathProgramCache]: Analyzing trace with hash -804739163, now seen corresponding path program 1 times [2019-10-15 01:13:30,304 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:30,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058299584] [2019-10-15 01:13:30,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:30,572 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058299584] [2019-10-15 01:13:30,573 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:30,573 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:30,574 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028670833] [2019-10-15 01:13:30,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:30,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:30,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:30,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:30,576 INFO L87 Difference]: Start difference. First operand 705 states and 1004 transitions. Second operand 3 states. [2019-10-15 01:13:30,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:30,638 INFO L93 Difference]: Finished difference Result 1502 states and 2204 transitions. [2019-10-15 01:13:30,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:30,638 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:13:30,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:30,649 INFO L225 Difference]: With dead ends: 1502 [2019-10-15 01:13:30,649 INFO L226 Difference]: Without dead ends: 862 [2019-10-15 01:13:30,652 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 [2019-10-15 01:13:30,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2019-10-15 01:13:30,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 861. [2019-10-15 01:13:30,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-15 01:13:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1268 transitions. [2019-10-15 01:13:30,715 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1268 transitions. Word has length 180 [2019-10-15 01:13:30,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:30,716 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1268 transitions. [2019-10-15 01:13:30,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:30,717 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1268 transitions. [2019-10-15 01:13:30,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:13:30,726 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:30,726 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:30,727 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:30,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:30,727 INFO L82 PathProgramCache]: Analyzing trace with hash 320279015, now seen corresponding path program 1 times [2019-10-15 01:13:30,728 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:30,728 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577185944] [2019-10-15 01:13:30,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,729 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:30,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:30,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577185944] [2019-10-15 01:13:30,958 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:30,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:30,958 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226340266] [2019-10-15 01:13:30,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:30,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:30,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:30,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:30,960 INFO L87 Difference]: Start difference. First operand 861 states and 1268 transitions. Second operand 3 states. [2019-10-15 01:13:31,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:31,023 INFO L93 Difference]: Finished difference Result 1958 states and 2976 transitions. [2019-10-15 01:13:31,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:31,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-15 01:13:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:31,033 INFO L225 Difference]: With dead ends: 1958 [2019-10-15 01:13:31,033 INFO L226 Difference]: Without dead ends: 1162 [2019-10-15 01:13:31,039 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 [2019-10-15 01:13:31,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2019-10-15 01:13:31,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1161. [2019-10-15 01:13:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1161 states. [2019-10-15 01:13:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1772 transitions. [2019-10-15 01:13:31,096 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1772 transitions. Word has length 181 [2019-10-15 01:13:31,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:31,097 INFO L462 AbstractCegarLoop]: Abstraction has 1161 states and 1772 transitions. [2019-10-15 01:13:31,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1772 transitions. [2019-10-15 01:13:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:13:31,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:31,105 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:31,105 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:31,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:31,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1317079888, now seen corresponding path program 1 times [2019-10-15 01:13:31,106 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:31,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601383148] [2019-10-15 01:13:31,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:31,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:31,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 01:13:32,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601383148] [2019-10-15 01:13:32,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:32,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2019-10-15 01:13:32,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454869996] [2019-10-15 01:13:32,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-10-15 01:13:32,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:32,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-10-15 01:13:32,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1717, Unknown=0, NotChecked=0, Total=1806 [2019-10-15 01:13:32,827 INFO L87 Difference]: Start difference. First operand 1161 states and 1772 transitions. Second operand 43 states.