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_spec6_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:01,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:01,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:01,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:01,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:01,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:01,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:01,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:01,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:01,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:01,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:01,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:01,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:01,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:01,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:01,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:01,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:01,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:01,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:01,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:01,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:01,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:01,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:01,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:01,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:01,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:01,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:01,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:01,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:01,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:01,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:01,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:01,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:01,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:01,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:01,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:01,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:01,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:01,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:01,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:01,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:01,789 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:01,811 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:01,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:01,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:01,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:01,817 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:01,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:01,817 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:01,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:01,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:01,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:01,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:01,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:01,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:01,819 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:01,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:01,820 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:01,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:01,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:01,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:01,822 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:01,822 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:01,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:01,822 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:01,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:01,823 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:01,823 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:01,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:01,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:01,823 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 [2019-10-13 21:17:02,114 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:02,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:02,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:02,133 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:02,134 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:02,134 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-13 21:17:02,220 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669edf08/972f94d32af3408c9c531b8d4f0dfb0d/FLAG7d9c84b05 [2019-10-13 21:17:02,896 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:02,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product14.cil.c [2019-10-13 21:17:02,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669edf08/972f94d32af3408c9c531b8d4f0dfb0d/FLAG7d9c84b05 [2019-10-13 21:17:03,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5669edf08/972f94d32af3408c9c531b8d4f0dfb0d [2019-10-13 21:17:03,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:03,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:03,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:03,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:03,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:03,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:03" (1/1) ... [2019-10-13 21:17:03,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@318fb035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:03, skipping insertion in model container [2019-10-13 21:17:03,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:03" (1/1) ... [2019-10-13 21:17:03,170 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:03,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:04,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:04,132 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:04,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:04,461 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:04,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04 WrapperNode [2019-10-13 21:17:04,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:04,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:04,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:04,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:04,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... [2019-10-13 21:17:04,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:04,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:04,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:04,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:04,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:04,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:04,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:04,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:04,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:04,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:04,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:06,908 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:06,909 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:06,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:06 BoogieIcfgContainer [2019-10-13 21:17:06,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:06,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:06,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:06,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:06,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:03" (1/3) ... [2019-10-13 21:17:06,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2344e78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:06, skipping insertion in model container [2019-10-13 21:17:06,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:04" (2/3) ... [2019-10-13 21:17:06,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2344e78b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:06, skipping insertion in model container [2019-10-13 21:17:06,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:06" (3/3) ... [2019-10-13 21:17:06,921 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2019-10-13 21:17:06,932 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:06,947 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:06,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:07,009 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:07,009 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:07,009 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:07,009 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:07,009 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:07,009 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:07,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:07,010 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2019-10-13 21:17:07,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 21:17:07,080 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:07,081 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:07,084 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:07,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:07,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1152105549, now seen corresponding path program 1 times [2019-10-13 21:17:07,099 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:07,100 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876953897] [2019-10-13 21:17:07,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:07,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:07,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:07,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876953897] [2019-10-13 21:17:07,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:07,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:07,828 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109641405] [2019-10-13 21:17:07,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:07,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:07,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:07,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:07,855 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 2 states. [2019-10-13 21:17:07,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:07,984 INFO L93 Difference]: Finished difference Result 703 states and 971 transitions. [2019-10-13 21:17:07,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:07,985 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-13 21:17:07,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:08,030 INFO L225 Difference]: With dead ends: 703 [2019-10-13 21:17:08,031 INFO L226 Difference]: Without dead ends: 474 [2019-10-13 21:17:08,043 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 [2019-10-13 21:17:08,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-13 21:17:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2019-10-13 21:17:08,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-13 21:17:08,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 657 transitions. [2019-10-13 21:17:08,148 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 657 transitions. Word has length 185 [2019-10-13 21:17:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:08,154 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 657 transitions. [2019-10-13 21:17:08,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 657 transitions. [2019-10-13 21:17:08,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 21:17:08,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:08,164 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:08,164 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:08,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:08,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1212655790, now seen corresponding path program 1 times [2019-10-13 21:17:08,166 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:08,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772353811] [2019-10-13 21:17:08,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:08,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772353811] [2019-10-13 21:17:08,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:08,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:08,470 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561944560] [2019-10-13 21:17:08,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:08,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:08,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:08,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:08,476 INFO L87 Difference]: Start difference. First operand 474 states and 657 transitions. Second operand 3 states. [2019-10-13 21:17:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:08,526 INFO L93 Difference]: Finished difference Result 686 states and 936 transitions. [2019-10-13 21:17:08,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:08,526 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 21:17:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:08,532 INFO L225 Difference]: With dead ends: 686 [2019-10-13 21:17:08,532 INFO L226 Difference]: Without dead ends: 477 [2019-10-13 21:17:08,534 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2019-10-13 21:17:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2019-10-13 21:17:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-13 21:17:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 659 transitions. [2019-10-13 21:17:08,585 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 659 transitions. Word has length 186 [2019-10-13 21:17:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:08,586 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 659 transitions. [2019-10-13 21:17:08,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:08,587 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 659 transitions. [2019-10-13 21:17:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:17:08,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:08,593 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:08,593 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:08,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:08,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1634845758, now seen corresponding path program 1 times [2019-10-13 21:17:08,594 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:08,594 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562947349] [2019-10-13 21:17:08,594 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,595 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:08,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:08,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:08,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562947349] [2019-10-13 21:17:08,885 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:08,885 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:08,886 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503033006] [2019-10-13 21:17:08,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:08,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:08,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:08,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:08,892 INFO L87 Difference]: Start difference. First operand 476 states and 659 transitions. Second operand 3 states. [2019-10-13 21:17:08,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:08,962 INFO L93 Difference]: Finished difference Result 928 states and 1316 transitions. [2019-10-13 21:17:08,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:08,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:17:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:08,977 INFO L225 Difference]: With dead ends: 928 [2019-10-13 21:17:08,978 INFO L226 Difference]: Without dead ends: 517 [2019-10-13 21:17:08,980 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-13 21:17:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-13 21:17:09,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-13 21:17:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 728 transitions. [2019-10-13 21:17:09,051 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 728 transitions. Word has length 192 [2019-10-13 21:17:09,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:09,052 INFO L462 AbstractCegarLoop]: Abstraction has 516 states and 728 transitions. [2019-10-13 21:17:09,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:09,052 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 728 transitions. [2019-10-13 21:17:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:17:09,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:09,061 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:09,061 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:09,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1046878051, now seen corresponding path program 1 times [2019-10-13 21:17:09,062 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:09,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628571620] [2019-10-13 21:17:09,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:09,063 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:09,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:09,517 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628571620] [2019-10-13 21:17:09,517 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:09,518 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:09,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765710105] [2019-10-13 21:17:09,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:09,524 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:09,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:09,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:09,525 INFO L87 Difference]: Start difference. First operand 516 states and 728 transitions. Second operand 11 states. [2019-10-13 21:17:13,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:13,953 INFO L93 Difference]: Finished difference Result 2227 states and 3265 transitions. [2019-10-13 21:17:13,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:13,956 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-13 21:17:13,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:13,979 INFO L225 Difference]: With dead ends: 2227 [2019-10-13 21:17:13,979 INFO L226 Difference]: Without dead ends: 2031 [2019-10-13 21:17:13,983 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:13,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2019-10-13 21:17:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 2010. [2019-10-13 21:17:14,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2010 states. [2019-10-13 21:17:14,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2895 transitions. [2019-10-13 21:17:14,129 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2895 transitions. Word has length 193 [2019-10-13 21:17:14,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:14,130 INFO L462 AbstractCegarLoop]: Abstraction has 2010 states and 2895 transitions. [2019-10-13 21:17:14,130 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:14,130 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2895 transitions. [2019-10-13 21:17:14,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:17:14,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:14,138 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:14,138 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:14,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1130161941, now seen corresponding path program 1 times [2019-10-13 21:17:14,139 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:14,140 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140839293] [2019-10-13 21:17:14,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:14,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:14,708 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:14,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140839293] [2019-10-13 21:17:14,710 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:14,711 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:14,711 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068256703] [2019-10-13 21:17:14,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:14,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:14,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:14,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:14,713 INFO L87 Difference]: Start difference. First operand 2010 states and 2895 transitions. Second operand 18 states. [2019-10-13 21:17:15,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:15,211 INFO L93 Difference]: Finished difference Result 3735 states and 5497 transitions. [2019-10-13 21:17:15,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:15,212 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 194 [2019-10-13 21:17:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:15,226 INFO L225 Difference]: With dead ends: 3735 [2019-10-13 21:17:15,226 INFO L226 Difference]: Without dead ends: 2027 [2019-10-13 21:17:15,234 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:15,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-10-13 21:17:15,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 2025. [2019-10-13 21:17:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2025 states. [2019-10-13 21:17:15,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2896 transitions. [2019-10-13 21:17:15,342 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2896 transitions. Word has length 194 [2019-10-13 21:17:15,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:15,343 INFO L462 AbstractCegarLoop]: Abstraction has 2025 states and 2896 transitions. [2019-10-13 21:17:15,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:15,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2896 transitions. [2019-10-13 21:17:15,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:15,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:15,348 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:15,348 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:15,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:15,349 INFO L82 PathProgramCache]: Analyzing trace with hash -463407390, now seen corresponding path program 1 times [2019-10-13 21:17:15,349 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:15,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588503145] [2019-10-13 21:17:15,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:15,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:15,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:15,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588503145] [2019-10-13 21:17:15,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:15,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:15,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166378455] [2019-10-13 21:17:15,641 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:15,642 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:15,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:15,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:15,643 INFO L87 Difference]: Start difference. First operand 2025 states and 2896 transitions. Second operand 6 states. [2019-10-13 21:17:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:16,288 INFO L93 Difference]: Finished difference Result 5814 states and 8483 transitions. [2019-10-13 21:17:16,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:16,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-13 21:17:16,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:16,320 INFO L225 Difference]: With dead ends: 5814 [2019-10-13 21:17:16,320 INFO L226 Difference]: Without dead ends: 4137 [2019-10-13 21:17:16,330 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:16,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2019-10-13 21:17:16,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 4066. [2019-10-13 21:17:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4066 states. [2019-10-13 21:17:16,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4066 states to 4066 states and 5906 transitions. [2019-10-13 21:17:16,590 INFO L78 Accepts]: Start accepts. Automaton has 4066 states and 5906 transitions. Word has length 203 [2019-10-13 21:17:16,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:16,593 INFO L462 AbstractCegarLoop]: Abstraction has 4066 states and 5906 transitions. [2019-10-13 21:17:16,593 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:16,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4066 states and 5906 transitions. [2019-10-13 21:17:16,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:17:16,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:16,600 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:16,600 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:16,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1740905386, now seen corresponding path program 1 times [2019-10-13 21:17:16,601 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:16,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227988256] [2019-10-13 21:17:16,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:16,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:16,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:16,921 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227988256] [2019-10-13 21:17:16,921 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:16,922 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:16,922 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940224730] [2019-10-13 21:17:16,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:16,923 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:16,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:16,923 INFO L87 Difference]: Start difference. First operand 4066 states and 5906 transitions. Second operand 11 states. [2019-10-13 21:17:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:17,472 INFO L93 Difference]: Finished difference Result 7559 states and 10999 transitions. [2019-10-13 21:17:17,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:17,473 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-10-13 21:17:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:17,517 INFO L225 Difference]: With dead ends: 7559 [2019-10-13 21:17:17,517 INFO L226 Difference]: Without dead ends: 4120 [2019-10-13 21:17:17,541 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4120 states. [2019-10-13 21:17:17,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4120 to 4102. [2019-10-13 21:17:17,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4102 states. [2019-10-13 21:17:17,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4102 states to 4102 states and 5942 transitions. [2019-10-13 21:17:17,826 INFO L78 Accepts]: Start accepts. Automaton has 4102 states and 5942 transitions. Word has length 204 [2019-10-13 21:17:17,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:17,829 INFO L462 AbstractCegarLoop]: Abstraction has 4102 states and 5942 transitions. [2019-10-13 21:17:17,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4102 states and 5942 transitions. [2019-10-13 21:17:17,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:17:17,837 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:17,837 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:17,838 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:17,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:17,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1967285791, now seen corresponding path program 1 times [2019-10-13 21:17:17,838 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:17,839 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670532460] [2019-10-13 21:17:17,839 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,839 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,839 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:18,052 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:18,052 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670532460] [2019-10-13 21:17:18,052 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:18,052 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:18,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202136170] [2019-10-13 21:17:18,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:18,053 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:18,054 INFO L87 Difference]: Start difference. First operand 4102 states and 5942 transitions. Second operand 5 states. [2019-10-13 21:17:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:19,281 INFO L93 Difference]: Finished difference Result 14991 states and 21806 transitions. [2019-10-13 21:17:19,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:19,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-13 21:17:19,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:19,371 INFO L225 Difference]: With dead ends: 14991 [2019-10-13 21:17:19,371 INFO L226 Difference]: Without dead ends: 11518 [2019-10-13 21:17:19,395 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:19,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11518 states. [2019-10-13 21:17:20,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11518 to 11406. [2019-10-13 21:17:20,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11406 states. [2019-10-13 21:17:20,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11406 states to 11406 states and 16528 transitions. [2019-10-13 21:17:20,139 INFO L78 Accepts]: Start accepts. Automaton has 11406 states and 16528 transitions. Word has length 204 [2019-10-13 21:17:20,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:20,140 INFO L462 AbstractCegarLoop]: Abstraction has 11406 states and 16528 transitions. [2019-10-13 21:17:20,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 11406 states and 16528 transitions. [2019-10-13 21:17:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-13 21:17:20,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,154 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:20,154 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1138512224, now seen corresponding path program 1 times [2019-10-13 21:17:20,155 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,155 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821830543] [2019-10-13 21:17:20,155 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:20,309 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821830543] [2019-10-13 21:17:20,310 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:20,310 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:20,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430419034] [2019-10-13 21:17:20,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:20,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:20,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:20,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:20,313 INFO L87 Difference]: Start difference. First operand 11406 states and 16528 transitions. Second operand 3 states. [2019-10-13 21:17:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:20,676 INFO L93 Difference]: Finished difference Result 23075 states and 33592 transitions. [2019-10-13 21:17:20,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:20,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-13 21:17:20,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:20,777 INFO L225 Difference]: With dead ends: 23075 [2019-10-13 21:17:20,777 INFO L226 Difference]: Without dead ends: 11734 [2019-10-13 21:17:20,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:20,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2019-10-13 21:17:22,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11730. [2019-10-13 21:17:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11730 states. [2019-10-13 21:17:22,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11730 states to 11730 states and 17125 transitions. [2019-10-13 21:17:22,130 INFO L78 Accepts]: Start accepts. Automaton has 11730 states and 17125 transitions. Word has length 233 [2019-10-13 21:17:22,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:22,131 INFO L462 AbstractCegarLoop]: Abstraction has 11730 states and 17125 transitions. [2019-10-13 21:17:22,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:22,131 INFO L276 IsEmpty]: Start isEmpty. Operand 11730 states and 17125 transitions. [2019-10-13 21:17:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:17:22,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:22,147 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:22,148 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:22,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:22,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1943049739, now seen corresponding path program 1 times [2019-10-13 21:17:22,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:22,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898267336] [2019-10-13 21:17:22,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:22,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:22,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898267336] [2019-10-13 21:17:22,406 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,406 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:22,407 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581660862] [2019-10-13 21:17:22,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:22,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:22,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,410 INFO L87 Difference]: Start difference. First operand 11730 states and 17125 transitions. Second operand 3 states. [2019-10-13 21:17:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,776 INFO L93 Difference]: Finished difference Result 24007 states and 35319 transitions. [2019-10-13 21:17:22,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:22,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-13 21:17:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,846 INFO L225 Difference]: With dead ends: 24007 [2019-10-13 21:17:22,846 INFO L226 Difference]: Without dead ends: 12342 [2019-10-13 21:17:22,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12342 states. [2019-10-13 21:17:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12342 to 12338. [2019-10-13 21:17:23,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12338 states. [2019-10-13 21:17:23,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12338 states to 12338 states and 18247 transitions. [2019-10-13 21:17:23,571 INFO L78 Accepts]: Start accepts. Automaton has 12338 states and 18247 transitions. Word has length 240 [2019-10-13 21:17:23,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,572 INFO L462 AbstractCegarLoop]: Abstraction has 12338 states and 18247 transitions. [2019-10-13 21:17:23,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 12338 states and 18247 transitions. [2019-10-13 21:17:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 21:17:23,600 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,601 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:23,601 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,602 INFO L82 PathProgramCache]: Analyzing trace with hash 765548462, now seen corresponding path program 1 times [2019-10-13 21:17:23,602 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107453219] [2019-10-13 21:17:23,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,603 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:23,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107453219] [2019-10-13 21:17:23,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:23,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742146084] [2019-10-13 21:17:23,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:23,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:23,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:23,861 INFO L87 Difference]: Start difference. First operand 12338 states and 18247 transitions. Second operand 8 states. [2019-10-13 21:17:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:28,818 INFO L93 Difference]: Finished difference Result 37380 states and 56731 transitions. [2019-10-13 21:17:28,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:28,818 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-13 21:17:28,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:28,940 INFO L225 Difference]: With dead ends: 37380 [2019-10-13 21:17:28,940 INFO L226 Difference]: Without dead ends: 25107 [2019-10-13 21:17:28,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:29,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25107 states. [2019-10-13 21:17:29,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25107 to 14654. [2019-10-13 21:17:29,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14654 states. [2019-10-13 21:17:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14654 states to 14654 states and 22883 transitions. [2019-10-13 21:17:29,847 INFO L78 Accepts]: Start accepts. Automaton has 14654 states and 22883 transitions. Word has length 241 [2019-10-13 21:17:29,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:29,848 INFO L462 AbstractCegarLoop]: Abstraction has 14654 states and 22883 transitions. [2019-10-13 21:17:29,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 14654 states and 22883 transitions. [2019-10-13 21:17:29,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-13 21:17:29,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:29,891 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:29,892 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:29,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:29,892 INFO L82 PathProgramCache]: Analyzing trace with hash -119692922, now seen corresponding path program 1 times [2019-10-13 21:17:29,892 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:29,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010739689] [2019-10-13 21:17:29,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,893 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,105 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:30,106 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010739689] [2019-10-13 21:17:30,106 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,106 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:30,106 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132610712] [2019-10-13 21:17:30,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:30,107 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:30,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:30,108 INFO L87 Difference]: Start difference. First operand 14654 states and 22883 transitions. Second operand 8 states.