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_spec6_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:44,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:44,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:44,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:44,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:44,536 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:44,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:44,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:44,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:44,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:44,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:44,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:44,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:44,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:44,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:44,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:44,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:44,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:44,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:44,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:44,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:44,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:44,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:44,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:44,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:44,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:44,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:44,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:44,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:44,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:44,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:44,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:44,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:44,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:44,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:44,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:44,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:44,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:44,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:44,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:44,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:44,586 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 03:15:44,600 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:44,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:44,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:44,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:44,602 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:44,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:44,602 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:44,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:44,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:44,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:44,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:44,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:44,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:44,604 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:44,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:44,604 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:44,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:44,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:44,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:44,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:44,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:44,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:44,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:44,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:44,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:44,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:44,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:44,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:44,607 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 [2019-10-15 03:15:44,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:44,884 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:44,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:44,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:44,889 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:44,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-15 03:15:44,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8075b9ec/c6c435e6c1b54634abf17b186fdd7b7d/FLAG364f601ea [2019-10-15 03:15:45,606 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:45,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-15 03:15:45,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8075b9ec/c6c435e6c1b54634abf17b186fdd7b7d/FLAG364f601ea [2019-10-15 03:15:45,787 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8075b9ec/c6c435e6c1b54634abf17b186fdd7b7d [2019-10-15 03:15:45,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:45,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:45,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:45,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:45,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:45,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb33164 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45, skipping insertion in model container [2019-10-15 03:15:45,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,813 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:45,893 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:46,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:46,621 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:46,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:46,846 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:46,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46 WrapperNode [2019-10-15 03:15:46,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:46,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:46,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:46,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:46,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:47,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:47,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:47,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:47,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:47,042 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:47,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (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 03:15:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:47,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:47,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:47,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:47,132 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:47,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:47,135 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:47,136 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:47,138 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:47,139 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:47,140 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:47,141 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:47,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:47,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:47,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:47,145 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:47,146 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:47,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:47,154 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:47,155 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:47,156 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:47,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:47,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:47,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:47,160 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:47,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:47,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:47,163 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:47,164 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:47,165 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:47,167 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:47,168 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:47,169 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:47,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:47,174 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:47,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:47,175 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:47,176 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:47,185 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:47,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:47,187 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:47,188 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:47,189 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:47,190 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:47,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:47,192 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:47,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:47,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:52,028 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:52,029 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:52,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:52 BoogieIcfgContainer [2019-10-15 03:15:52,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:52,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:52,032 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:52,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:52,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:45" (1/3) ... [2019-10-15 03:15:52,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167bdb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:52, skipping insertion in model container [2019-10-15 03:15:52,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (2/3) ... [2019-10-15 03:15:52,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167bdb5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:52, skipping insertion in model container [2019-10-15 03:15:52,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:52" (3/3) ... [2019-10-15 03:15:52,039 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2019-10-15 03:15:52,049 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:52,060 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:52,072 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:52,110 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:52,110 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:52,110 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:52,111 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:52,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:52,115 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:52,115 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:52,115 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:52,156 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states. [2019-10-15 03:15:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:52,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,186 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:52,190 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,197 INFO L82 PathProgramCache]: Analyzing trace with hash 2061290457, now seen corresponding path program 1 times [2019-10-15 03:15:52,211 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,211 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896028633] [2019-10-15 03:15:52,211 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,212 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,212 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:52,879 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:52,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896028633] [2019-10-15 03:15:52,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:52,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:52,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879258478] [2019-10-15 03:15:52,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:52,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:52,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:52,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:52,906 INFO L87 Difference]: Start difference. First operand 400 states. Second operand 2 states. [2019-10-15 03:15:52,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:52,988 INFO L93 Difference]: Finished difference Result 582 states and 696 transitions. [2019-10-15 03:15:52,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:52,990 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-15 03:15:52,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:53,031 INFO L225 Difference]: With dead ends: 582 [2019-10-15 03:15:53,031 INFO L226 Difference]: Without dead ends: 373 [2019-10-15 03:15:53,043 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 03:15:53,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2019-10-15 03:15:53,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 373. [2019-10-15 03:15:53,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-15 03:15:53,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 442 transitions. [2019-10-15 03:15:53,146 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 442 transitions. Word has length 143 [2019-10-15 03:15:53,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:53,148 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 442 transitions. [2019-10-15 03:15:53,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:53,148 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 442 transitions. [2019-10-15 03:15:53,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-15 03:15:53,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:53,155 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:53,155 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:53,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:53,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1103720808, now seen corresponding path program 1 times [2019-10-15 03:15:53,156 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:53,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33264820] [2019-10-15 03:15:53,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:53,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:53,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33264820] [2019-10-15 03:15:53,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:53,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:53,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524162512] [2019-10-15 03:15:53,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:53,471 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:53,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:53,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:53,472 INFO L87 Difference]: Start difference. First operand 373 states and 442 transitions. Second operand 3 states. [2019-10-15 03:15:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:53,563 INFO L93 Difference]: Finished difference Result 567 states and 664 transitions. [2019-10-15 03:15:53,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:53,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-15 03:15:53,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:53,573 INFO L225 Difference]: With dead ends: 567 [2019-10-15 03:15:53,574 INFO L226 Difference]: Without dead ends: 375 [2019-10-15 03:15:53,579 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 03:15:53,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-15 03:15:53,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2019-10-15 03:15:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-15 03:15:53,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 444 transitions. [2019-10-15 03:15:53,615 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 444 transitions. Word has length 144 [2019-10-15 03:15:53,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:53,616 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 444 transitions. [2019-10-15 03:15:53,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:53,616 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 444 transitions. [2019-10-15 03:15:53,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:15:53,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:53,620 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:53,621 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:53,621 INFO L82 PathProgramCache]: Analyzing trace with hash -730650997, now seen corresponding path program 1 times [2019-10-15 03:15:53,621 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:53,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097375537] [2019-10-15 03:15:53,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,622 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:15:53,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097375537] [2019-10-15 03:15:53,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:53,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:53,905 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980422167] [2019-10-15 03:15:53,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:53,909 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:53,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:53,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:53,910 INFO L87 Difference]: Start difference. First operand 375 states and 444 transitions. Second operand 3 states. [2019-10-15 03:15:53,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:53,968 INFO L93 Difference]: Finished difference Result 734 states and 898 transitions. [2019-10-15 03:15:53,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:53,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-15 03:15:53,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:53,974 INFO L225 Difference]: With dead ends: 734 [2019-10-15 03:15:53,974 INFO L226 Difference]: Without dead ends: 417 [2019-10-15 03:15:53,976 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 03:15:53,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-10-15 03:15:54,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 416. [2019-10-15 03:15:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-10-15 03:15:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 515 transitions. [2019-10-15 03:15:54,026 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 515 transitions. Word has length 149 [2019-10-15 03:15:54,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:54,028 INFO L462 AbstractCegarLoop]: Abstraction has 416 states and 515 transitions. [2019-10-15 03:15:54,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:54,028 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 515 transitions. [2019-10-15 03:15:54,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:15:54,036 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:54,036 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:54,036 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:54,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:54,037 INFO L82 PathProgramCache]: Analyzing trace with hash 819131061, now seen corresponding path program 1 times [2019-10-15 03:15:54,037 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:54,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555717102] [2019-10-15 03:15:54,038 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:54,038 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:54,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:54,829 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:15:54,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555717102] [2019-10-15 03:15:54,830 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:54,830 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:15:54,830 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67483570] [2019-10-15 03:15:54,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:15:54,831 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:54,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:15:54,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:15:54,832 INFO L87 Difference]: Start difference. First operand 416 states and 515 transitions. Second operand 24 states. [2019-10-15 03:16:02,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:02,760 INFO L93 Difference]: Finished difference Result 1110 states and 1367 transitions. [2019-10-15 03:16:02,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 03:16:02,760 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 150 [2019-10-15 03:16:02,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:02,771 INFO L225 Difference]: With dead ends: 1110 [2019-10-15 03:16:02,771 INFO L226 Difference]: Without dead ends: 926 [2019-10-15 03:16:02,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-15 03:16:02,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-10-15 03:16:02,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 913. [2019-10-15 03:16:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2019-10-15 03:16:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1110 transitions. [2019-10-15 03:16:02,864 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1110 transitions. Word has length 150 [2019-10-15 03:16:02,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:02,867 INFO L462 AbstractCegarLoop]: Abstraction has 913 states and 1110 transitions. [2019-10-15 03:16:02,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:02,867 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1110 transitions. [2019-10-15 03:16:02,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:16:02,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:02,873 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:02,873 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:02,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1325372908, now seen corresponding path program 1 times [2019-10-15 03:16:02,874 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:02,874 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304338881] [2019-10-15 03:16:02,874 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:02,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:02,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:16:03,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304338881] [2019-10-15 03:16:03,727 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247003861] [2019-10-15 03:16:03,727 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 [2019-10-15 03:16:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:04,282 INFO L256 TraceCheckSpWp]: Trace formula consists of 2772 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:16:04,299 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:04,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:04,421 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:04,735 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:04,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [853129882] [2019-10-15 03:16:04,769 INFO L162 IcfgInterpreter]: Started Sifa with 143 locations of interest [2019-10-15 03:16:04,769 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:04,778 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:04,785 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:04,786 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs