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_spec7_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:54,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:54,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:54,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:54,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:54,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:54,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:54,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:54,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:54,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:54,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:54,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:54,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:54,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:54,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:54,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:54,546 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:54,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:54,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:54,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:54,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:54,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:54,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:54,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:54,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:54,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:54,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:54,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:54,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:54,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:54,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:54,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:54,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:54,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:54,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:54,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:54,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:54,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:54,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:54,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:54,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:54,569 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 01:16:54,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:54,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:54,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:54,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:54,586 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:54,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:54,586 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:54,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:54,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:54,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:54,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:54,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:54,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:54,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:54,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:54,588 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:54,588 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:54,588 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:54,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:54,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:54,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:54,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:54,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:54,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:54,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:54,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:54,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:54,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:54,591 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 01:16:54,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:54,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:54,913 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:54,914 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:54,915 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:54,916 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-15 01:16:54,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361114386/c599f2f6db444134bf3e50c618570cc1/FLAG93cfb537d [2019-10-15 01:16:55,643 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:55,644 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product32.cil.c [2019-10-15 01:16:55,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361114386/c599f2f6db444134bf3e50c618570cc1/FLAG93cfb537d [2019-10-15 01:16:55,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/361114386/c599f2f6db444134bf3e50c618570cc1 [2019-10-15 01:16:55,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:55,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:55,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:55,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:55,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:55,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:55, skipping insertion in model container [2019-10-15 01:16:55,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:55" (1/1) ... [2019-10-15 01:16:55,836 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:55,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:56,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:56,717 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:56,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:56,928 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:56,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56 WrapperNode [2019-10-15 01:16:56,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:56,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:56,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:56,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:56,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:56,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:56,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:56,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:57,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:57,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:57,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (1/1) ... [2019-10-15 01:16:57,116 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:57,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:57,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:57,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:57,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (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 01:16:57,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:57,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:57,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:57,203 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:57,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:57,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:57,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:57,207 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:57,208 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:57,209 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:57,212 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:57,214 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:57,215 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:57,216 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:57,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:57,218 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:57,219 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:57,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:57,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:57,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:57,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:57,225 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:57,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:57,227 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:57,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:57,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:57,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:57,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:57,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:57,234 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:57,235 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:57,236 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:57,237 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:57,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:57,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:57,239 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:57,243 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:57,248 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:57,249 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:57,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:57,260 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:57,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:57,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:57,267 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:59,563 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:59,563 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:59,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:59 BoogieIcfgContainer [2019-10-15 01:16:59,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:59,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:59,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:59,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:59,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:55" (1/3) ... [2019-10-15 01:16:59,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f77832a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:59, skipping insertion in model container [2019-10-15 01:16:59,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:56" (2/3) ... [2019-10-15 01:16:59,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f77832a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:59, skipping insertion in model container [2019-10-15 01:16:59,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:59" (3/3) ... [2019-10-15 01:16:59,573 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product32.cil.c [2019-10-15 01:16:59,584 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:59,593 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:59,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:59,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:59,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:59,640 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:59,641 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:59,641 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:59,643 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:59,643 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:59,644 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:59,684 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states. [2019-10-15 01:16:59,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:16:59,719 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:59,721 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:59,723 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:59,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:59,729 INFO L82 PathProgramCache]: Analyzing trace with hash -311164788, now seen corresponding path program 1 times [2019-10-15 01:16:59,739 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:59,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699742085] [2019-10-15 01:16:59,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,740 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:59,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:00,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699742085] [2019-10-15 01:17:00,464 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:00,464 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:17:00,464 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386782880] [2019-10-15 01:17:00,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:17:00,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:00,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:17:00,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:17:00,490 INFO L87 Difference]: Start difference. First operand 633 states. Second operand 2 states. [2019-10-15 01:17:00,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:00,615 INFO L93 Difference]: Finished difference Result 896 states and 1218 transitions. [2019-10-15 01:17:00,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:17:00,617 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-15 01:17:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:00,642 INFO L225 Difference]: With dead ends: 896 [2019-10-15 01:17:00,642 INFO L226 Difference]: Without dead ends: 576 [2019-10-15 01:17:00,650 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 01:17:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2019-10-15 01:17:00,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 576. [2019-10-15 01:17:00,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 576 states. [2019-10-15 01:17:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 786 transitions. [2019-10-15 01:17:00,752 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 786 transitions. Word has length 191 [2019-10-15 01:17:00,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:00,754 INFO L462 AbstractCegarLoop]: Abstraction has 576 states and 786 transitions. [2019-10-15 01:17:00,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:17:00,755 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 786 transitions. [2019-10-15 01:17:00,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:17:00,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:00,761 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:00,761 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:00,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 544104814, now seen corresponding path program 1 times [2019-10-15 01:17:00,762 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:00,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332267455] [2019-10-15 01:17:00,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:00,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:00,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:01,036 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332267455] [2019-10-15 01:17:01,036 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:01,036 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:01,037 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522603223] [2019-10-15 01:17:01,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:01,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:01,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:01,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:01,044 INFO L87 Difference]: Start difference. First operand 576 states and 786 transitions. Second operand 3 states. [2019-10-15 01:17:01,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:01,140 INFO L93 Difference]: Finished difference Result 879 states and 1180 transitions. [2019-10-15 01:17:01,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:01,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:17:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:01,152 INFO L225 Difference]: With dead ends: 879 [2019-10-15 01:17:01,153 INFO L226 Difference]: Without dead ends: 579 [2019-10-15 01:17:01,156 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 01:17:01,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-15 01:17:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 578. [2019-10-15 01:17:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2019-10-15 01:17:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 788 transitions. [2019-10-15 01:17:01,220 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 788 transitions. Word has length 192 [2019-10-15 01:17:01,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:01,221 INFO L462 AbstractCegarLoop]: Abstraction has 578 states and 788 transitions. [2019-10-15 01:17:01,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 788 transitions. [2019-10-15 01:17:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:17:01,230 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:01,230 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:01,231 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:01,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1874665950, now seen corresponding path program 1 times [2019-10-15 01:17:01,231 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:01,232 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703827598] [2019-10-15 01:17:01,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:01,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703827598] [2019-10-15 01:17:01,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:01,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:01,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65783551] [2019-10-15 01:17:01,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:01,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:01,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:01,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:01,526 INFO L87 Difference]: Start difference. First operand 578 states and 788 transitions. Second operand 3 states. [2019-10-15 01:17:01,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:01,574 INFO L93 Difference]: Finished difference Result 1134 states and 1577 transitions. [2019-10-15 01:17:01,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:01,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-15 01:17:01,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:01,583 INFO L225 Difference]: With dead ends: 1134 [2019-10-15 01:17:01,583 INFO L226 Difference]: Without dead ends: 621 [2019-10-15 01:17:01,585 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 01:17:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2019-10-15 01:17:01,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 620. [2019-10-15 01:17:01,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-15 01:17:01,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 860 transitions. [2019-10-15 01:17:01,614 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 860 transitions. Word has length 202 [2019-10-15 01:17:01,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:01,615 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 860 transitions. [2019-10-15 01:17:01,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:01,615 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 860 transitions. [2019-10-15 01:17:01,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:17:01,619 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:01,620 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:01,620 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:01,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:01,621 INFO L82 PathProgramCache]: Analyzing trace with hash -620463334, now seen corresponding path program 1 times [2019-10-15 01:17:01,621 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:01,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5768749] [2019-10-15 01:17:01,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:01,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:01,945 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:01,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5768749] [2019-10-15 01:17:01,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:01,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:01,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291916022] [2019-10-15 01:17:01,947 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:01,948 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:01,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:01,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:01,949 INFO L87 Difference]: Start difference. First operand 620 states and 860 transitions. Second operand 3 states. [2019-10-15 01:17:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,006 INFO L93 Difference]: Finished difference Result 1257 states and 1788 transitions. [2019-10-15 01:17:02,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:02,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-15 01:17:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,015 INFO L225 Difference]: With dead ends: 1257 [2019-10-15 01:17:02,015 INFO L226 Difference]: Without dead ends: 702 [2019-10-15 01:17:02,018 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 01:17:02,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-15 01:17:02,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 701. [2019-10-15 01:17:02,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 701 states. [2019-10-15 01:17:02,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 998 transitions. [2019-10-15 01:17:02,064 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 998 transitions. Word has length 203 [2019-10-15 01:17:02,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,065 INFO L462 AbstractCegarLoop]: Abstraction has 701 states and 998 transitions. [2019-10-15 01:17:02,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 998 transitions. [2019-10-15 01:17:02,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:17:02,070 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,071 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:02,071 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1948319678, now seen corresponding path program 1 times [2019-10-15 01:17:02,072 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046299665] [2019-10-15 01:17:02,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:02,332 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046299665] [2019-10-15 01:17:02,332 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,332 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:02,333 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261224229] [2019-10-15 01:17:02,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:02,333 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:02,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,335 INFO L87 Difference]: Start difference. First operand 701 states and 998 transitions. Second operand 3 states. [2019-10-15 01:17:02,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,383 INFO L93 Difference]: Finished difference Result 1494 states and 2192 transitions. [2019-10-15 01:17:02,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:02,383 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-15 01:17:02,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,390 INFO L225 Difference]: With dead ends: 1494 [2019-10-15 01:17:02,390 INFO L226 Difference]: Without dead ends: 858 [2019-10-15 01:17:02,393 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 01:17:02,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-10-15 01:17:02,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 857. [2019-10-15 01:17:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-10-15 01:17:02,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1262 transitions. [2019-10-15 01:17:02,439 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1262 transitions. Word has length 204 [2019-10-15 01:17:02,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,440 INFO L462 AbstractCegarLoop]: Abstraction has 857 states and 1262 transitions. [2019-10-15 01:17:02,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:02,440 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1262 transitions. [2019-10-15 01:17:02,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:17:02,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,446 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:02,446 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1879306950, now seen corresponding path program 1 times [2019-10-15 01:17:02,447 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408538234] [2019-10-15 01:17:02,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:02,693 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:02,694 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408538234] [2019-10-15 01:17:02,694 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:02,694 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:02,695 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075974926] [2019-10-15 01:17:02,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:02,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:02,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:02,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:02,696 INFO L87 Difference]: Start difference. First operand 857 states and 1262 transitions. Second operand 3 states. [2019-10-15 01:17:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:02,761 INFO L93 Difference]: Finished difference Result 1950 states and 2964 transitions. [2019-10-15 01:17:02,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:02,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:17:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:02,770 INFO L225 Difference]: With dead ends: 1950 [2019-10-15 01:17:02,770 INFO L226 Difference]: Without dead ends: 1158 [2019-10-15 01:17:02,776 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 01:17:02,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2019-10-15 01:17:02,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2019-10-15 01:17:02,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-15 01:17:02,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1766 transitions. [2019-10-15 01:17:02,850 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1766 transitions. Word has length 205 [2019-10-15 01:17:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:02,852 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1766 transitions. [2019-10-15 01:17:02,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1766 transitions. [2019-10-15 01:17:02,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:17:02,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:02,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:02,863 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:02,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:02,864 INFO L82 PathProgramCache]: Analyzing trace with hash -59408994, now seen corresponding path program 1 times [2019-10-15 01:17:02,864 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:02,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052740209] [2019-10-15 01:17:02,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:02,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:17:03,126 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052740209] [2019-10-15 01:17:03,127 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,127 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:03,127 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685080025] [2019-10-15 01:17:03,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:03,129 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:03,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:03,130 INFO L87 Difference]: Start difference. First operand 1157 states and 1766 transitions. Second operand 3 states. [2019-10-15 01:17:03,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:03,231 INFO L93 Difference]: Finished difference Result 2826 states and 4436 transitions. [2019-10-15 01:17:03,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:03,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-10-15 01:17:03,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:03,244 INFO L225 Difference]: With dead ends: 2826 [2019-10-15 01:17:03,244 INFO L226 Difference]: Without dead ends: 1734 [2019-10-15 01:17:03,250 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 01:17:03,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2019-10-15 01:17:03,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1733. [2019-10-15 01:17:03,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2019-10-15 01:17:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2726 transitions. [2019-10-15 01:17:03,414 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2726 transitions. Word has length 206 [2019-10-15 01:17:03,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:03,415 INFO L462 AbstractCegarLoop]: Abstraction has 1733 states and 2726 transitions. [2019-10-15 01:17:03,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:03,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2726 transitions. [2019-10-15 01:17:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:17:03,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,429 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:03,429 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1504076601, now seen corresponding path program 1 times [2019-10-15 01:17:03,430 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248295404] [2019-10-15 01:17:03,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:03,879 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248295404] [2019-10-15 01:17:03,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:17:03,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890417870] [2019-10-15 01:17:03,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:17:03,881 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:17:03,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:17:03,881 INFO L87 Difference]: Start difference. First operand 1733 states and 2726 transitions. Second operand 19 states. [2019-10-15 01:17:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,415 INFO L93 Difference]: Finished difference Result 4360 states and 6828 transitions. [2019-10-15 01:17:09,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:17:09,415 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 208 [2019-10-15 01:17:09,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,443 INFO L225 Difference]: With dead ends: 4360 [2019-10-15 01:17:09,443 INFO L226 Difference]: Without dead ends: 4073 [2019-10-15 01:17:09,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:17:09,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2019-10-15 01:17:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4036. [2019-10-15 01:17:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2019-10-15 01:17:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 6377 transitions. [2019-10-15 01:17:09,675 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 6377 transitions. Word has length 208 [2019-10-15 01:17:09,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,676 INFO L462 AbstractCegarLoop]: Abstraction has 4036 states and 6377 transitions. [2019-10-15 01:17:09,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 6377 transitions. [2019-10-15 01:17:09,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:17:09,700 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,701 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,701 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,702 INFO L82 PathProgramCache]: Analyzing trace with hash 499285188, now seen corresponding path program 1 times [2019-10-15 01:17:09,702 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539971735] [2019-10-15 01:17:09,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:09,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539971735] [2019-10-15 01:17:09,964 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,964 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:17:09,964 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163901495] [2019-10-15 01:17:09,965 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:17:09,965 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:17:09,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:09,966 INFO L87 Difference]: Start difference. First operand 4036 states and 6377 transitions. Second operand 13 states. [2019-10-15 01:17:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,730 INFO L93 Difference]: Finished difference Result 5385 states and 8273 transitions. [2019-10-15 01:17:10,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:10,731 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2019-10-15 01:17:10,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,765 INFO L225 Difference]: With dead ends: 5385 [2019-10-15 01:17:10,765 INFO L226 Difference]: Without dead ends: 4170 [2019-10-15 01:17:10,775 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:17:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2019-10-15 01:17:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 4170. [2019-10-15 01:17:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4170 states. [2019-10-15 01:17:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 6594 transitions. [2019-10-15 01:17:11,157 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 6594 transitions. Word has length 209 [2019-10-15 01:17:11,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,158 INFO L462 AbstractCegarLoop]: Abstraction has 4170 states and 6594 transitions. [2019-10-15 01:17:11,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:17:11,159 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 6594 transitions. [2019-10-15 01:17:11,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:17:11,185 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,186 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:11,186 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1211410007, now seen corresponding path program 1 times [2019-10-15 01:17:11,187 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643030423] [2019-10-15 01:17:11,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:11,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643030423] [2019-10-15 01:17:11,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:11,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852758866] [2019-10-15 01:17:11,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:11,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:11,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:11,554 INFO L87 Difference]: Start difference. First operand 4170 states and 6594 transitions. Second operand 15 states. [2019-10-15 01:17:15,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:15,533 INFO L93 Difference]: Finished difference Result 5557 states and 8565 transitions. [2019-10-15 01:17:15,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:17:15,534 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2019-10-15 01:17:15,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:15,564 INFO L225 Difference]: With dead ends: 5557 [2019-10-15 01:17:15,564 INFO L226 Difference]: Without dead ends: 4288 [2019-10-15 01:17:15,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:17:15,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4288 states. [2019-10-15 01:17:15,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4288 to 4251. [2019-10-15 01:17:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4251 states. [2019-10-15 01:17:15,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6732 transitions. [2019-10-15 01:17:15,834 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6732 transitions. Word has length 209 [2019-10-15 01:17:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:15,835 INFO L462 AbstractCegarLoop]: Abstraction has 4251 states and 6732 transitions. [2019-10-15 01:17:15,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6732 transitions. [2019-10-15 01:17:15,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:17:15,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:15,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:15,864 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:15,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:15,865 INFO L82 PathProgramCache]: Analyzing trace with hash 493886152, now seen corresponding path program 1 times [2019-10-15 01:17:15,865 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:15,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269435621] [2019-10-15 01:17:15,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:15,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:15,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:16,547 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:16,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269435621] [2019-10-15 01:17:16,547 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:16,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:17:16,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245082101] [2019-10-15 01:17:16,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:17:16,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:16,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:17:16,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:17:16,549 INFO L87 Difference]: Start difference. First operand 4251 states and 6732 transitions. Second operand 18 states. [2019-10-15 01:17:17,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:17,107 INFO L93 Difference]: Finished difference Result 5668 states and 8728 transitions. [2019-10-15 01:17:17,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:17:17,108 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 209 [2019-10-15 01:17:17,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:17,136 INFO L225 Difference]: With dead ends: 5668 [2019-10-15 01:17:17,136 INFO L226 Difference]: Without dead ends: 4298 [2019-10-15 01:17:17,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:17:17,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2019-10-15 01:17:17,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 4296. [2019-10-15 01:17:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4296 states. [2019-10-15 01:17:17,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 6771 transitions. [2019-10-15 01:17:17,337 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 6771 transitions. Word has length 209 [2019-10-15 01:17:17,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:17,337 INFO L462 AbstractCegarLoop]: Abstraction has 4296 states and 6771 transitions. [2019-10-15 01:17:17,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:17:17,338 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 6771 transitions. [2019-10-15 01:17:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:17:17,357 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:17,358 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:17,358 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:17,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:17,359 INFO L82 PathProgramCache]: Analyzing trace with hash -216412755, now seen corresponding path program 1 times [2019-10-15 01:17:17,359 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:17,359 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685658041] [2019-10-15 01:17:17,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,360 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:17,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,530 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:17,530 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685658041] [2019-10-15 01:17:17,530 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:17,531 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573221819] [2019-10-15 01:17:17,532 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:17,532 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:17,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:17,532 INFO L87 Difference]: Start difference. First operand 4296 states and 6771 transitions. Second operand 5 states. [2019-10-15 01:17:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:18,850 INFO L93 Difference]: Finished difference Result 8545 states and 13391 transitions. [2019-10-15 01:17:18,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:18,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-10-15 01:17:18,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:18,898 INFO L225 Difference]: With dead ends: 8545 [2019-10-15 01:17:18,898 INFO L226 Difference]: Without dead ends: 7834 [2019-10-15 01:17:18,906 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 01:17:18,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7834 states. [2019-10-15 01:17:19,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7834 to 7820. [2019-10-15 01:17:19,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7820 states. [2019-10-15 01:17:19,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7820 states to 7820 states and 12337 transitions. [2019-10-15 01:17:19,268 INFO L78 Accepts]: Start accepts. Automaton has 7820 states and 12337 transitions. Word has length 209 [2019-10-15 01:17:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,269 INFO L462 AbstractCegarLoop]: Abstraction has 7820 states and 12337 transitions. [2019-10-15 01:17:19,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7820 states and 12337 transitions. [2019-10-15 01:17:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:17:19,301 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,302 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:19,302 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,303 INFO L82 PathProgramCache]: Analyzing trace with hash -196075380, now seen corresponding path program 1 times [2019-10-15 01:17:19,303 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,303 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099893323] [2019-10-15 01:17:19,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:19,492 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099893323] [2019-10-15 01:17:19,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:19,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:19,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198772797] [2019-10-15 01:17:19,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:19,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:19,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:19,495 INFO L87 Difference]: Start difference. First operand 7820 states and 12337 transitions. Second operand 7 states. [2019-10-15 01:17:22,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:22,247 INFO L93 Difference]: Finished difference Result 18483 states and 29904 transitions. [2019-10-15 01:17:22,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:22,248 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-10-15 01:17:22,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:22,327 INFO L225 Difference]: With dead ends: 18483 [2019-10-15 01:17:22,327 INFO L226 Difference]: Without dead ends: 14982 [2019-10-15 01:17:22,352 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 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 01:17:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14982 states. [2019-10-15 01:17:23,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14982 to 14976. [2019-10-15 01:17:23,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14976 states. [2019-10-15 01:17:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14976 states to 14976 states and 24039 transitions. [2019-10-15 01:17:23,149 INFO L78 Accepts]: Start accepts. Automaton has 14976 states and 24039 transitions. Word has length 209 [2019-10-15 01:17:23,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:23,150 INFO L462 AbstractCegarLoop]: Abstraction has 14976 states and 24039 transitions. [2019-10-15 01:17:23,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand 14976 states and 24039 transitions. [2019-10-15 01:17:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:23,183 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:23,184 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:23,184 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:23,184 INFO L82 PathProgramCache]: Analyzing trace with hash -428249634, now seen corresponding path program 1 times [2019-10-15 01:17:23,184 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:23,185 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778917940] [2019-10-15 01:17:23,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:23,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:23,746 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778917940] [2019-10-15 01:17:23,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:23,746 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 01:17:23,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393632540] [2019-10-15 01:17:23,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 01:17:23,747 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:23,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 01:17:23,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:17:23,748 INFO L87 Difference]: Start difference. First operand 14976 states and 24039 transitions. Second operand 28 states. [2019-10-15 01:17:25,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:25,763 INFO L93 Difference]: Finished difference Result 26074 states and 42246 transitions. [2019-10-15 01:17:25,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 01:17:25,763 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 210 [2019-10-15 01:17:25,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:25,836 INFO L225 Difference]: With dead ends: 26074 [2019-10-15 01:17:25,836 INFO L226 Difference]: Without dead ends: 15417 [2019-10-15 01:17:25,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:17:25,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15417 states. [2019-10-15 01:17:26,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15417 to 15384. [2019-10-15 01:17:26,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15384 states. [2019-10-15 01:17:26,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15384 states to 15384 states and 24558 transitions. [2019-10-15 01:17:26,581 INFO L78 Accepts]: Start accepts. Automaton has 15384 states and 24558 transitions. Word has length 210 [2019-10-15 01:17:26,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:26,582 INFO L462 AbstractCegarLoop]: Abstraction has 15384 states and 24558 transitions. [2019-10-15 01:17:26,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 01:17:26,582 INFO L276 IsEmpty]: Start isEmpty. Operand 15384 states and 24558 transitions. [2019-10-15 01:17:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 01:17:26,611 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:26,611 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:26,612 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:26,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1086081098, now seen corresponding path program 1 times [2019-10-15 01:17:26,612 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:26,613 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217803259] [2019-10-15 01:17:26,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,613 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:26,839 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:26,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217803259] [2019-10-15 01:17:26,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:26,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:26,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606949188] [2019-10-15 01:17:26,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:26,841 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:26,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:26,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:26,842 INFO L87 Difference]: Start difference. First operand 15384 states and 24558 transitions. Second operand 10 states. [2019-10-15 01:17:27,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:27,365 INFO L93 Difference]: Finished difference Result 15507 states and 24760 transitions. [2019-10-15 01:17:27,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:27,366 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 214 [2019-10-15 01:17:27,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:27,441 INFO L225 Difference]: With dead ends: 15507 [2019-10-15 01:17:27,441 INFO L226 Difference]: Without dead ends: 15504 [2019-10-15 01:17:27,456 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 01:17:27,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15504 states.