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_spec11_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:28,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:28,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:28,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:28,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:28,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:28,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:28,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:28,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:28,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:28,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:28,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:28,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:28,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:28,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:28,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:28,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:28,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:28,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:28,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:28,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:28,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:28,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:28,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:28,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:28,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:28,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:28,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:28,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:28,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:28,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:28,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:28,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:28,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:28,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:28,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:28,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:28,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:28,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:28,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:28,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:28,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:28,743 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:28,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:28,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:28,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:28,745 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:28,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:28,745 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:28,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:28,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:28,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:28,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:28,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:28,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:28,747 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:28,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:28,747 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:28,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:28,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:28,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:28,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:28,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:28,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:28,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:28,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:28,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:28,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:28,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:28,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:28,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:29,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:29,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:29,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:29,078 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:29,079 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:29,080 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-15 01:12:29,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b8960a7/26db52c144bd4e12be815a2cdca90d00/FLAGbcbbf0fc6 [2019-10-15 01:12:29,830 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:29,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product15.cil.c [2019-10-15 01:12:29,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b8960a7/26db52c144bd4e12be815a2cdca90d00/FLAGbcbbf0fc6 [2019-10-15 01:12:30,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49b8960a7/26db52c144bd4e12be815a2cdca90d00 [2019-10-15 01:12:30,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:30,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:30,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:30,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:30,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:30,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:30" (1/1) ... [2019-10-15 01:12:30,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31952563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:30, skipping insertion in model container [2019-10-15 01:12:30,054 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:30" (1/1) ... [2019-10-15 01:12:30,064 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:30,156 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:30,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:31,011 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:31,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:31,257 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:31,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31 WrapperNode [2019-10-15 01:12:31,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:31,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:31,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:31,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:31,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... [2019-10-15 01:12:31,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:31,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:31,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:31,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:31,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:31,527 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:31,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:31,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:31,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:31,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:31,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:31,536 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:31,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:31,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:31,537 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:31,538 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:31,539 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:31,540 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:31,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:31,540 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:31,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:31,540 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:31,543 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:31,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:31,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:31,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:31,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:31,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:31,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:31,553 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:31,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:31,555 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:31,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:31,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:31,569 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:31,570 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:31,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:31,572 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:31,583 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:31,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:31,585 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:31,586 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:31,587 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:31,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:31,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:31,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:33,835 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:33,836 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:33,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:33 BoogieIcfgContainer [2019-10-15 01:12:33,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:33,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:33,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:33,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:33,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:30" (1/3) ... [2019-10-15 01:12:33,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db69b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:33, skipping insertion in model container [2019-10-15 01:12:33,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:31" (2/3) ... [2019-10-15 01:12:33,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db69b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:33, skipping insertion in model container [2019-10-15 01:12:33,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:33" (3/3) ... [2019-10-15 01:12:33,848 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product15.cil.c [2019-10-15 01:12:33,860 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:33,872 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:33,884 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:33,927 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:33,927 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:33,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:33,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:33,927 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:33,927 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:33,928 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:33,928 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states. [2019-10-15 01:12:33,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:12:33,998 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:34,000 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] [2019-10-15 01:12:34,003 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1009460557, now seen corresponding path program 1 times [2019-10-15 01:12:34,018 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:34,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672425308] [2019-10-15 01:12:34,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:34,642 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672425308] [2019-10-15 01:12:34,643 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:34,643 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:34,643 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234465780] [2019-10-15 01:12:34,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:34,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:34,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:34,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:34,670 INFO L87 Difference]: Start difference. First operand 463 states. Second operand 2 states. [2019-10-15 01:12:34,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:34,734 INFO L93 Difference]: Finished difference Result 642 states and 848 transitions. [2019-10-15 01:12:34,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:34,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 184 [2019-10-15 01:12:34,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:34,756 INFO L225 Difference]: With dead ends: 642 [2019-10-15 01:12:34,756 INFO L226 Difference]: Without dead ends: 427 [2019-10-15 01:12:34,764 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:34,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-15 01:12:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2019-10-15 01:12:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-10-15 01:12:34,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 567 transitions. [2019-10-15 01:12:34,854 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 567 transitions. Word has length 184 [2019-10-15 01:12:34,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:34,856 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 567 transitions. [2019-10-15 01:12:34,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:34,856 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 567 transitions. [2019-10-15 01:12:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:12:34,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:34,862 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] [2019-10-15 01:12:34,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:34,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1618025728, now seen corresponding path program 1 times [2019-10-15 01:12:34,863 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:34,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118177900] [2019-10-15 01:12:34,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:35,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118177900] [2019-10-15 01:12:35,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:35,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:35,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082229330] [2019-10-15 01:12:35,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:35,131 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:35,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:35,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,131 INFO L87 Difference]: Start difference. First operand 427 states and 567 transitions. Second operand 3 states. [2019-10-15 01:12:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:35,193 INFO L93 Difference]: Finished difference Result 625 states and 814 transitions. [2019-10-15 01:12:35,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:35,193 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-15 01:12:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:35,198 INFO L225 Difference]: With dead ends: 625 [2019-10-15 01:12:35,199 INFO L226 Difference]: Without dead ends: 430 [2019-10-15 01:12:35,201 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-15 01:12:35,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 429. [2019-10-15 01:12:35,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-15 01:12:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 569 transitions. [2019-10-15 01:12:35,264 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 569 transitions. Word has length 185 [2019-10-15 01:12:35,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:35,265 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 569 transitions. [2019-10-15 01:12:35,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:35,265 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 569 transitions. [2019-10-15 01:12:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:12:35,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:35,276 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] [2019-10-15 01:12:35,276 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:35,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:35,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1065076368, now seen corresponding path program 1 times [2019-10-15 01:12:35,277 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:35,278 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968165094] [2019-10-15 01:12:35,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,278 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:35,609 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968165094] [2019-10-15 01:12:35,609 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:35,609 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:35,610 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765636773] [2019-10-15 01:12:35,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:35,611 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:35,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:35,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,612 INFO L87 Difference]: Start difference. First operand 429 states and 569 transitions. Second operand 3 states. [2019-10-15 01:12:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:35,652 INFO L93 Difference]: Finished difference Result 834 states and 1136 transitions. [2019-10-15 01:12:35,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:35,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-15 01:12:35,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:35,658 INFO L225 Difference]: With dead ends: 834 [2019-10-15 01:12:35,658 INFO L226 Difference]: Without dead ends: 470 [2019-10-15 01:12:35,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-15 01:12:35,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 469. [2019-10-15 01:12:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-15 01:12:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 638 transitions. [2019-10-15 01:12:35,693 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 638 transitions. Word has length 195 [2019-10-15 01:12:35,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:35,694 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 638 transitions. [2019-10-15 01:12:35,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:35,695 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 638 transitions. [2019-10-15 01:12:35,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:12:35,707 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:35,708 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] [2019-10-15 01:12:35,708 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash 328316479, now seen corresponding path program 1 times [2019-10-15 01:12:35,709 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:35,710 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144397758] [2019-10-15 01:12:35,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:35,914 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:35,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144397758] [2019-10-15 01:12:35,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:35,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:35,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018853561] [2019-10-15 01:12:35,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:35,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:35,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:35,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,917 INFO L87 Difference]: Start difference. First operand 469 states and 638 transitions. Second operand 3 states. [2019-10-15 01:12:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:35,961 INFO L93 Difference]: Finished difference Result 951 states and 1338 transitions. [2019-10-15 01:12:35,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:35,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:12:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:35,973 INFO L225 Difference]: With dead ends: 951 [2019-10-15 01:12:35,974 INFO L226 Difference]: Without dead ends: 547 [2019-10-15 01:12:35,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:35,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2019-10-15 01:12:36,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 546. [2019-10-15 01:12:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-15 01:12:36,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 770 transitions. [2019-10-15 01:12:36,008 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 770 transitions. Word has length 196 [2019-10-15 01:12:36,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:36,009 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 770 transitions. [2019-10-15 01:12:36,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 770 transitions. [2019-10-15 01:12:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:12:36,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:36,015 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] [2019-10-15 01:12:36,015 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:36,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1785624336, now seen corresponding path program 1 times [2019-10-15 01:12:36,016 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:36,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648541274] [2019-10-15 01:12:36,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:36,250 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648541274] [2019-10-15 01:12:36,250 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:36,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:36,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935149284] [2019-10-15 01:12:36,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:36,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:36,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:36,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:36,254 INFO L87 Difference]: Start difference. First operand 546 states and 770 transitions. Second operand 3 states. [2019-10-15 01:12:36,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:36,311 INFO L93 Difference]: Finished difference Result 1176 states and 1724 transitions. [2019-10-15 01:12:36,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:36,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-15 01:12:36,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:36,320 INFO L225 Difference]: With dead ends: 1176 [2019-10-15 01:12:36,320 INFO L226 Difference]: Without dead ends: 695 [2019-10-15 01:12:36,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:36,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2019-10-15 01:12:36,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 694. [2019-10-15 01:12:36,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2019-10-15 01:12:36,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1022 transitions. [2019-10-15 01:12:36,376 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1022 transitions. Word has length 197 [2019-10-15 01:12:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:36,377 INFO L462 AbstractCegarLoop]: Abstraction has 694 states and 1022 transitions. [2019-10-15 01:12:36,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1022 transitions. [2019-10-15 01:12:36,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:12:36,384 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:36,385 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] [2019-10-15 01:12:36,385 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:36,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:36,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1999560001, now seen corresponding path program 1 times [2019-10-15 01:12:36,386 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:36,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860219102] [2019-10-15 01:12:36,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:36,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860219102] [2019-10-15 01:12:36,603 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:36,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:36,604 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819438006] [2019-10-15 01:12:36,604 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:36,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:36,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:36,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:36,605 INFO L87 Difference]: Start difference. First operand 694 states and 1022 transitions. Second operand 3 states. [2019-10-15 01:12:36,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:36,663 INFO L93 Difference]: Finished difference Result 1608 states and 2460 transitions. [2019-10-15 01:12:36,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:36,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-15 01:12:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:36,673 INFO L225 Difference]: With dead ends: 1608 [2019-10-15 01:12:36,674 INFO L226 Difference]: Without dead ends: 979 [2019-10-15 01:12:36,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2019-10-15 01:12:36,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 978. [2019-10-15 01:12:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-10-15 01:12:36,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1502 transitions. [2019-10-15 01:12:36,819 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1502 transitions. Word has length 198 [2019-10-15 01:12:36,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:36,821 INFO L462 AbstractCegarLoop]: Abstraction has 978 states and 1502 transitions. [2019-10-15 01:12:36,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1502 transitions. [2019-10-15 01:12:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:12:36,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:36,828 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] [2019-10-15 01:12:36,828 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:36,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:36,829 INFO L82 PathProgramCache]: Analyzing trace with hash 164433568, now seen corresponding path program 1 times [2019-10-15 01:12:36,829 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:36,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818768114] [2019-10-15 01:12:36,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:36,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:37,235 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:37,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818768114] [2019-10-15 01:12:37,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:37,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:37,237 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691156957] [2019-10-15 01:12:37,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:37,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:37,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:37,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:37,238 INFO L87 Difference]: Start difference. First operand 978 states and 1502 transitions. Second operand 19 states. [2019-10-15 01:12:41,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,524 INFO L93 Difference]: Finished difference Result 2535 states and 3849 transitions. [2019-10-15 01:12:41,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:41,525 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 201 [2019-10-15 01:12:41,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,542 INFO L225 Difference]: With dead ends: 2535 [2019-10-15 01:12:41,543 INFO L226 Difference]: Without dead ends: 2353 [2019-10-15 01:12:41,546 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2019-10-15 01:12:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2316. [2019-10-15 01:12:41,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2316 states. [2019-10-15 01:12:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3563 transitions. [2019-10-15 01:12:41,669 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3563 transitions. Word has length 201 [2019-10-15 01:12:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:41,669 INFO L462 AbstractCegarLoop]: Abstraction has 2316 states and 3563 transitions. [2019-10-15 01:12:41,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:41,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3563 transitions. [2019-10-15 01:12:41,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:41,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:41,681 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] [2019-10-15 01:12:41,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:41,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:41,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1129710859, now seen corresponding path program 1 times [2019-10-15 01:12:41,682 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:41,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447126056] [2019-10-15 01:12:41,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:41,890 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447126056] [2019-10-15 01:12:41,891 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:41,891 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:41,891 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122012816] [2019-10-15 01:12:41,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:41,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:41,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:41,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:41,893 INFO L87 Difference]: Start difference. First operand 2316 states and 3563 transitions. Second operand 9 states. [2019-10-15 01:12:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:42,264 INFO L93 Difference]: Finished difference Result 3149 states and 4658 transitions. [2019-10-15 01:12:42,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:42,265 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 202 [2019-10-15 01:12:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,283 INFO L225 Difference]: With dead ends: 3149 [2019-10-15 01:12:42,284 INFO L226 Difference]: Without dead ends: 2362 [2019-10-15 01:12:42,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:42,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2019-10-15 01:12:42,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2019-10-15 01:12:42,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2362 states. [2019-10-15 01:12:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 3636 transitions. [2019-10-15 01:12:42,448 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 3636 transitions. Word has length 202 [2019-10-15 01:12:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,449 INFO L462 AbstractCegarLoop]: Abstraction has 2362 states and 3636 transitions. [2019-10-15 01:12:42,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 3636 transitions. [2019-10-15 01:12:42,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:42,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,474 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1961451491, now seen corresponding path program 1 times [2019-10-15 01:12:42,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304888385] [2019-10-15 01:12:42,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:12:42,730 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304888385] [2019-10-15 01:12:42,730 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 01:12:42,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121483383] [2019-10-15 01:12:42,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:12:42,731 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:12:42,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:12:42,732 INFO L87 Difference]: Start difference. First operand 2362 states and 3636 transitions. Second operand 14 states. [2019-10-15 01:12:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:43,051 INFO L93 Difference]: Finished difference Result 3233 states and 4784 transitions. [2019-10-15 01:12:43,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:12:43,051 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 202 [2019-10-15 01:12:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:43,070 INFO L225 Difference]: With dead ends: 3233 [2019-10-15 01:12:43,071 INFO L226 Difference]: Without dead ends: 2394 [2019-10-15 01:12:43,076 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2019-10-15 01:12:43,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2394. [2019-10-15 01:12:43,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2394 states. [2019-10-15 01:12:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2394 states to 2394 states and 3668 transitions. [2019-10-15 01:12:43,274 INFO L78 Accepts]: Start accepts. Automaton has 2394 states and 3668 transitions. Word has length 202 [2019-10-15 01:12:43,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:43,274 INFO L462 AbstractCegarLoop]: Abstraction has 2394 states and 3668 transitions. [2019-10-15 01:12:43,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:12:43,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2394 states and 3668 transitions. [2019-10-15 01:12:43,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:43,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:43,288 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] [2019-10-15 01:12:43,288 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:43,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:43,289 INFO L82 PathProgramCache]: Analyzing trace with hash 193335460, now seen corresponding path program 1 times [2019-10-15 01:12:43,289 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:43,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370311035] [2019-10-15 01:12:43,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:43,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:43,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370311035] [2019-10-15 01:12:43,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:43,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005689717] [2019-10-15 01:12:43,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:43,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:43,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:43,553 INFO L87 Difference]: Start difference. First operand 2394 states and 3668 transitions. Second operand 15 states. [2019-10-15 01:12:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:47,341 INFO L93 Difference]: Finished difference Result 3273 states and 4819 transitions. [2019-10-15 01:12:47,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:47,341 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 202 [2019-10-15 01:12:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:47,360 INFO L225 Difference]: With dead ends: 3273 [2019-10-15 01:12:47,360 INFO L226 Difference]: Without dead ends: 2478 [2019-10-15 01:12:47,368 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:47,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-10-15 01:12:47,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2423. [2019-10-15 01:12:47,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2019-10-15 01:12:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 3711 transitions. [2019-10-15 01:12:47,527 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 3711 transitions. Word has length 202 [2019-10-15 01:12:47,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:47,527 INFO L462 AbstractCegarLoop]: Abstraction has 2423 states and 3711 transitions. [2019-10-15 01:12:47,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:47,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 3711 transitions. [2019-10-15 01:12:47,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:47,538 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:47,539 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] [2019-10-15 01:12:47,539 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:47,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:47,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1971016039, now seen corresponding path program 1 times [2019-10-15 01:12:47,540 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:47,540 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733915951] [2019-10-15 01:12:47,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:47,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:47,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:47,741 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:47,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733915951] [2019-10-15 01:12:47,742 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:47,742 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:47,742 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15841995] [2019-10-15 01:12:47,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:47,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:47,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:47,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:47,744 INFO L87 Difference]: Start difference. First operand 2423 states and 3711 transitions. Second operand 5 states. [2019-10-15 01:12:48,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:48,567 INFO L93 Difference]: Finished difference Result 4799 states and 7182 transitions. [2019-10-15 01:12:48,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:48,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2019-10-15 01:12:48,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:48,595 INFO L225 Difference]: With dead ends: 4799 [2019-10-15 01:12:48,595 INFO L226 Difference]: Without dead ends: 4396 [2019-10-15 01:12:48,599 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 [2019-10-15 01:12:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4396 states. [2019-10-15 01:12:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4396 to 4365. [2019-10-15 01:12:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4365 states. [2019-10-15 01:12:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4365 states to 4365 states and 6623 transitions. [2019-10-15 01:12:48,839 INFO L78 Accepts]: Start accepts. Automaton has 4365 states and 6623 transitions. Word has length 202 [2019-10-15 01:12:48,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:48,839 INFO L462 AbstractCegarLoop]: Abstraction has 4365 states and 6623 transitions. [2019-10-15 01:12:48,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:48,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4365 states and 6623 transitions. [2019-10-15 01:12:48,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:48,861 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:48,862 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] [2019-10-15 01:12:48,862 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:48,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:48,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1840275930, now seen corresponding path program 1 times [2019-10-15 01:12:48,863 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:48,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249695255] [2019-10-15 01:12:48,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:48,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:48,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:49,065 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249695255] [2019-10-15 01:12:49,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:49,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:12:49,066 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748976564] [2019-10-15 01:12:49,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:12:49,067 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:49,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:12:49,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:49,067 INFO L87 Difference]: Start difference. First operand 4365 states and 6623 transitions. Second operand 7 states. [2019-10-15 01:12:50,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:50,840 INFO L93 Difference]: Finished difference Result 10441 states and 14838 transitions. [2019-10-15 01:12:50,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:12:50,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 202 [2019-10-15 01:12:50,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:50,901 INFO L225 Difference]: With dead ends: 10441 [2019-10-15 01:12:50,901 INFO L226 Difference]: Without dead ends: 8499 [2019-10-15 01:12:50,914 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8499 states. [2019-10-15 01:12:51,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8499 to 8461. [2019-10-15 01:12:51,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8461 states. [2019-10-15 01:12:51,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8461 states to 8461 states and 12143 transitions. [2019-10-15 01:12:51,398 INFO L78 Accepts]: Start accepts. Automaton has 8461 states and 12143 transitions. Word has length 202 [2019-10-15 01:12:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:51,399 INFO L462 AbstractCegarLoop]: Abstraction has 8461 states and 12143 transitions. [2019-10-15 01:12:51,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:12:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 8461 states and 12143 transitions. [2019-10-15 01:12:51,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:12:51,418 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:51,418 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] [2019-10-15 01:12:51,418 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:51,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:51,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1975708119, now seen corresponding path program 1 times [2019-10-15 01:12:51,419 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:51,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400336111] [2019-10-15 01:12:51,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:51,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:51,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:51,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400336111] [2019-10-15 01:12:51,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:51,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:12:51,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677484214] [2019-10-15 01:12:51,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:12:51,812 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:12:51,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:12:51,813 INFO L87 Difference]: Start difference. First operand 8461 states and 12143 transitions. Second operand 24 states. [2019-10-15 01:12:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:53,173 INFO L93 Difference]: Finished difference Result 15254 states and 21358 transitions. [2019-10-15 01:12:53,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-10-15 01:12:53,174 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 203 [2019-10-15 01:12:53,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:53,213 INFO L225 Difference]: With dead ends: 15254 [2019-10-15 01:12:53,214 INFO L226 Difference]: Without dead ends: 8814 [2019-10-15 01:12:53,234 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:12:53,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8814 states. [2019-10-15 01:12:53,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8814 to 8591. [2019-10-15 01:12:53,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8591 states. [2019-10-15 01:12:53,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8591 states to 8591 states and 12329 transitions. [2019-10-15 01:12:53,618 INFO L78 Accepts]: Start accepts. Automaton has 8591 states and 12329 transitions. Word has length 203 [2019-10-15 01:12:53,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:53,619 INFO L462 AbstractCegarLoop]: Abstraction has 8591 states and 12329 transitions. [2019-10-15 01:12:53,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 01:12:53,619 INFO L276 IsEmpty]: Start isEmpty. Operand 8591 states and 12329 transitions. [2019-10-15 01:12:53,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:12:53,637 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:53,637 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] [2019-10-15 01:12:53,638 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:53,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:53,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1635585549, now seen corresponding path program 1 times [2019-10-15 01:12:53,638 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:53,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928687963] [2019-10-15 01:12:53,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:53,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928687963] [2019-10-15 01:12:53,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:53,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:12:53,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207427474] [2019-10-15 01:12:53,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:12:53,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:53,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:12:53,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:12:53,818 INFO L87 Difference]: Start difference. First operand 8591 states and 12329 transitions. Second operand 10 states. [2019-10-15 01:12:54,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,065 INFO L93 Difference]: Finished difference Result 8656 states and 12393 transitions. [2019-10-15 01:12:54,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:12:54,066 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2019-10-15 01:12:54,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,109 INFO L225 Difference]: With dead ends: 8656 [2019-10-15 01:12:54,109 INFO L226 Difference]: Without dead ends: 8442 [2019-10-15 01:12:54,118 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:12:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2019-10-15 01:12:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 8438. [2019-10-15 01:12:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8438 states. [2019-10-15 01:12:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8438 states to 8438 states and 12096 transitions. [2019-10-15 01:12:54,616 INFO L78 Accepts]: Start accepts. Automaton has 8438 states and 12096 transitions. Word has length 207 [2019-10-15 01:12:54,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,617 INFO L462 AbstractCegarLoop]: Abstraction has 8438 states and 12096 transitions. [2019-10-15 01:12:54,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:12:54,618 INFO L276 IsEmpty]: Start isEmpty. Operand 8438 states and 12096 transitions. [2019-10-15 01:12:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:12:54,645 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,645 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] [2019-10-15 01:12:54,646 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1032859762, now seen corresponding path program 1 times [2019-10-15 01:12:54,646 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107425825] [2019-10-15 01:12:54,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:54,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107425825] [2019-10-15 01:12:54,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:54,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:54,780 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385888208] [2019-10-15 01:12:54,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:54,781 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:54,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:54,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:54,781 INFO L87 Difference]: Start difference. First operand 8438 states and 12096 transitions. Second operand 5 states. [2019-10-15 01:12:54,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,979 INFO L93 Difference]: Finished difference Result 12964 states and 17977 transitions. [2019-10-15 01:12:54,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:12:54,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2019-10-15 01:12:54,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:55,015 INFO L225 Difference]: With dead ends: 12964 [2019-10-15 01:12:55,015 INFO L226 Difference]: Without dead ends: 8621 [2019-10-15 01:12:55,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:55,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8621 states. [2019-10-15 01:12:55,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8621 to 8516. [2019-10-15 01:12:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8516 states. [2019-10-15 01:12:55,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8516 states to 8516 states and 12137 transitions. [2019-10-15 01:12:55,415 INFO L78 Accepts]: Start accepts. Automaton has 8516 states and 12137 transitions. Word has length 212 [2019-10-15 01:12:55,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:55,416 INFO L462 AbstractCegarLoop]: Abstraction has 8516 states and 12137 transitions. [2019-10-15 01:12:55,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:55,416 INFO L276 IsEmpty]: Start isEmpty. Operand 8516 states and 12137 transitions. [2019-10-15 01:12:55,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:55,438 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:55,439 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] [2019-10-15 01:12:55,439 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:55,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:55,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1647701080, now seen corresponding path program 1 times [2019-10-15 01:12:55,440 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:55,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957429953] [2019-10-15 01:12:55,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:55,440 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:55,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:55,583 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:55,583 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957429953] [2019-10-15 01:12:55,583 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:55,584 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:55,584 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005582458] [2019-10-15 01:12:55,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:55,585 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:55,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:55,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:55,585 INFO L87 Difference]: Start difference. First operand 8516 states and 12137 transitions. Second operand 6 states. [2019-10-15 01:12:56,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:56,441 INFO L93 Difference]: Finished difference Result 22193 states and 31338 transitions. [2019-10-15 01:12:56,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:56,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 213 [2019-10-15 01:12:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:56,521 INFO L225 Difference]: With dead ends: 22193 [2019-10-15 01:12:56,521 INFO L226 Difference]: Without dead ends: 17105 [2019-10-15 01:12:56,542 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 [2019-10-15 01:12:56,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17105 states. [2019-10-15 01:12:57,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17105 to 16858. [2019-10-15 01:12:57,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16858 states. [2019-10-15 01:12:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16858 states to 16858 states and 24372 transitions. [2019-10-15 01:12:57,250 INFO L78 Accepts]: Start accepts. Automaton has 16858 states and 24372 transitions. Word has length 213 [2019-10-15 01:12:57,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:57,251 INFO L462 AbstractCegarLoop]: Abstraction has 16858 states and 24372 transitions. [2019-10-15 01:12:57,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:57,251 INFO L276 IsEmpty]: Start isEmpty. Operand 16858 states and 24372 transitions. [2019-10-15 01:12:57,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:12:57,285 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:57,286 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] [2019-10-15 01:12:57,286 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:57,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1801570746, now seen corresponding path program 1 times [2019-10-15 01:12:57,287 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:57,287 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346291853] [2019-10-15 01:12:57,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,287 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:57,498 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:57,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346291853] [2019-10-15 01:12:57,499 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:57,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:12:57,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993678302] [2019-10-15 01:12:57,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:12:57,500 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:57,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:12:57,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:12:57,501 INFO L87 Difference]: Start difference. First operand 16858 states and 24372 transitions. Second operand 8 states.