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_spec8_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:17:39,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:17:39,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:17:39,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:17:39,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:17:39,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:17:39,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:17:39,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:17:39,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:17:39,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:17:39,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:17:39,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:17:39,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:17:39,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:17:39,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:17:39,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:17:39,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:17:39,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:17:39,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:17:39,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:17:39,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:17:39,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:17:39,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:17:39,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:17:39,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:17:39,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:17:39,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:17:39,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:17:39,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:17:39,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:17:39,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:17:39,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:17:39,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:17:39,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:17:39,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:17:39,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:17:39,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:17:39,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:17:39,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:17:39,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:17:39,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:17:39,713 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 01:17:39,728 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:17:39,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:17:39,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:17:39,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:17:39,730 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:17:39,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:17:39,730 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:17:39,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:17:39,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:17:39,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:17:39,732 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:17:39,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:17:39,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:17:39,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:17:39,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:17:39,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:17:39,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:17:39,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:17:39,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:17:39,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:17:39,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:17:39,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:17:39,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:17:39,734 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 01:17:40,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:17:40,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:17:40,048 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:17:40,050 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:17:40,050 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:17:40,051 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-15 01:17:40,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e301400f7/ff5e0c5a49fb4c158d0d16e22d653ff9/FLAG55a79d73a [2019-10-15 01:17:40,807 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:17:40,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-15 01:17:40,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e301400f7/ff5e0c5a49fb4c158d0d16e22d653ff9/FLAG55a79d73a [2019-10-15 01:17:40,903 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e301400f7/ff5e0c5a49fb4c158d0d16e22d653ff9 [2019-10-15 01:17:40,914 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:17:40,916 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:17:40,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:40,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:17:40,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:17:40,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:40" (1/1) ... [2019-10-15 01:17:40,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a0daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:40, skipping insertion in model container [2019-10-15 01:17:40,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:17:40" (1/1) ... [2019-10-15 01:17:40,931 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:17:41,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:17:41,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:41,899 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:17:42,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:42,261 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:17:42,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42 WrapperNode [2019-10-15 01:17:42,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:42,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:17:42,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:17:42,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:17:42,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (1/1) ... [2019-10-15 01:17:42,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:17:42,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:17:42,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:17:42,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:17:42,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (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 01:17:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:17:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:17:42,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:17:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:17:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:17:42,572 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:17:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:17:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:17:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:42,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:17:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:17:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:17:42,574 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:17:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:17:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:17:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:17:42,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:17:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:17:42,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:17:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:17:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:17:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:17:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:17:42,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:17:42,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:17:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:17:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:17:42,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:17:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:17:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:17:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:17:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:17:42,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:17:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:17:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:17:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:17:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:17:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:17:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:17:42,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:17:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:17:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:17:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:17:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:17:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:17:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:17:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:17:42,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-15 01:17:42,586 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-15 01:17:42,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-15 01:17:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:17:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-15 01:17:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-15 01:17:42,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:17:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:17:42,589 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:17:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:17:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-15 01:17:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-15 01:17:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-15 01:17:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-15 01:17:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-15 01:17:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-15 01:17:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:17:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:17:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-15 01:17:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-15 01:17:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:17:42,615 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:17:42,616 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:17:42,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:17:42,618 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:17:42,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:17:42,620 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:17:42,621 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:17:42,622 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:17:42,623 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:17:42,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:42,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:17:42,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:17:42,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:17:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:17:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:17:42,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:17:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:17:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 01:17:42,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-15 01:17:42,634 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:17:42,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:17:42,636 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-15 01:17:42,637 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-15 01:17:42,638 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:17:42,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-15 01:17:42,640 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:17:42,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:17:42,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:45,139 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:45,139 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:45,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:45 BoogieIcfgContainer [2019-10-15 01:17:45,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:45,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:45,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:45,146 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:45,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:17:40" (1/3) ... [2019-10-15 01:17:45,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d8690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:45, skipping insertion in model container [2019-10-15 01:17:45,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:42" (2/3) ... [2019-10-15 01:17:45,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@770d8690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:45, skipping insertion in model container [2019-10-15 01:17:45,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:45" (3/3) ... [2019-10-15 01:17:45,149 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2019-10-15 01:17:45,159 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:45,169 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:45,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:45,221 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:45,221 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:45,221 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:45,221 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:45,221 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:45,221 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:45,221 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:45,222 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:45,267 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states. [2019-10-15 01:17:45,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 01:17:45,309 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:45,311 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:45,316 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:45,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:45,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1272279262, now seen corresponding path program 1 times [2019-10-15 01:17:45,333 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:45,334 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885976505] [2019-10-15 01:17:45,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:45,334 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:45,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:46,027 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:46,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885976505] [2019-10-15 01:17:46,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:46,029 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:46,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853037630] [2019-10-15 01:17:46,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:46,038 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:46,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:46,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:46,056 INFO L87 Difference]: Start difference. First operand 818 states. Second operand 6 states. [2019-10-15 01:17:46,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:46,335 INFO L93 Difference]: Finished difference Result 1554 states and 2145 transitions. [2019-10-15 01:17:46,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:17:46,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2019-10-15 01:17:46,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:46,383 INFO L225 Difference]: With dead ends: 1554 [2019-10-15 01:17:46,384 INFO L226 Difference]: Without dead ends: 789 [2019-10-15 01:17:46,398 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-15 01:17:46,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-15 01:17:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-15 01:17:46,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1073 transitions. [2019-10-15 01:17:46,577 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1073 transitions. Word has length 170 [2019-10-15 01:17:46,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:46,583 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1073 transitions. [2019-10-15 01:17:46,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:17:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1073 transitions. [2019-10-15 01:17:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:17:46,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:46,597 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:46,597 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:46,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1687310560, now seen corresponding path program 1 times [2019-10-15 01:17:46,599 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:46,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224193469] [2019-10-15 01:17:46,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:46,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:46,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:46,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224193469] [2019-10-15 01:17:46,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:46,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:17:46,930 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793730702] [2019-10-15 01:17:46,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:17:46,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:46,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:17:46,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:46,950 INFO L87 Difference]: Start difference. First operand 789 states and 1073 transitions. Second operand 4 states. [2019-10-15 01:17:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:47,851 INFO L93 Difference]: Finished difference Result 1541 states and 2131 transitions. [2019-10-15 01:17:47,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:17:47,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2019-10-15 01:17:47,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:47,860 INFO L225 Difference]: With dead ends: 1541 [2019-10-15 01:17:47,860 INFO L226 Difference]: Without dead ends: 788 [2019-10-15 01:17:47,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-15 01:17:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-15 01:17:47,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-15 01:17:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1063 transitions. [2019-10-15 01:17:47,907 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1063 transitions. Word has length 176 [2019-10-15 01:17:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:47,908 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1063 transitions. [2019-10-15 01:17:47,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:17:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1063 transitions. [2019-10-15 01:17:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:17:47,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:47,913 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:47,914 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:47,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:47,914 INFO L82 PathProgramCache]: Analyzing trace with hash -544519570, now seen corresponding path program 1 times [2019-10-15 01:17:47,914 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:47,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121809093] [2019-10-15 01:17:47,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:47,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:47,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:48,145 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121809093] [2019-10-15 01:17:48,145 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:48,146 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:48,146 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585375168] [2019-10-15 01:17:48,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:48,149 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:48,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:48,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:48,150 INFO L87 Difference]: Start difference. First operand 788 states and 1063 transitions. Second operand 3 states. [2019-10-15 01:17:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:48,372 INFO L93 Difference]: Finished difference Result 1534 states and 2090 transitions. [2019-10-15 01:17:48,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:48,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 01:17:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:48,384 INFO L225 Difference]: With dead ends: 1534 [2019-10-15 01:17:48,384 INFO L226 Difference]: Without dead ends: 787 [2019-10-15 01:17:48,390 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 01:17:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-15 01:17:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-15 01:17:48,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-15 01:17:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1059 transitions. [2019-10-15 01:17:48,462 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1059 transitions. Word has length 194 [2019-10-15 01:17:48,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:48,463 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1059 transitions. [2019-10-15 01:17:48,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:48,463 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1059 transitions. [2019-10-15 01:17:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:17:48,473 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:48,473 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:48,474 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash -428530514, now seen corresponding path program 1 times [2019-10-15 01:17:48,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:48,475 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374731830] [2019-10-15 01:17:48,475 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:48,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:48,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:48,870 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:48,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374731830] [2019-10-15 01:17:48,871 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:48,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:17:48,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362676445] [2019-10-15 01:17:48,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:17:48,873 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:48,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:17:48,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:48,874 INFO L87 Difference]: Start difference. First operand 787 states and 1059 transitions. Second operand 4 states. [2019-10-15 01:17:49,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:49,626 INFO L93 Difference]: Finished difference Result 1505 states and 2036 transitions. [2019-10-15 01:17:49,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:17:49,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-15 01:17:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:49,634 INFO L225 Difference]: With dead ends: 1505 [2019-10-15 01:17:49,635 INFO L226 Difference]: Without dead ends: 784 [2019-10-15 01:17:49,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:49,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-15 01:17:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2019-10-15 01:17:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-15 01:17:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1042 transitions. [2019-10-15 01:17:49,688 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1042 transitions. Word has length 195 [2019-10-15 01:17:49,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:49,744 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1042 transitions. [2019-10-15 01:17:49,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:17:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1042 transitions. [2019-10-15 01:17:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:17:49,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:49,750 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:49,750 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:49,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:49,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1946876725, now seen corresponding path program 1 times [2019-10-15 01:17:49,751 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:49,752 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110959152] [2019-10-15 01:17:49,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:49,752 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:49,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:49,952 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:17:49,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110959152] [2019-10-15 01:17:49,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:49,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:49,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659513241] [2019-10-15 01:17:49,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:49,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:49,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:49,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:49,955 INFO L87 Difference]: Start difference. First operand 784 states and 1042 transitions. Second operand 3 states. [2019-10-15 01:17:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:50,002 INFO L93 Difference]: Finished difference Result 1221 states and 1603 transitions. [2019-10-15 01:17:50,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:50,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-15 01:17:50,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:50,009 INFO L225 Difference]: With dead ends: 1221 [2019-10-15 01:17:50,009 INFO L226 Difference]: Without dead ends: 787 [2019-10-15 01:17:50,011 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 01:17:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-15 01:17:50,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 786. [2019-10-15 01:17:50,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-15 01:17:50,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1044 transitions. [2019-10-15 01:17:50,048 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1044 transitions. Word has length 222 [2019-10-15 01:17:50,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:50,048 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1044 transitions. [2019-10-15 01:17:50,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1044 transitions. [2019-10-15 01:17:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:17:50,053 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:50,053 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:50,054 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:50,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:50,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1749524217, now seen corresponding path program 1 times [2019-10-15 01:17:50,054 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:50,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172072116] [2019-10-15 01:17:50,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,055 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:50,272 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:17:50,272 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172072116] [2019-10-15 01:17:50,273 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:50,273 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:50,273 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970636951] [2019-10-15 01:17:50,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:50,274 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:50,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:50,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:50,275 INFO L87 Difference]: Start difference. First operand 786 states and 1044 transitions. Second operand 3 states. [2019-10-15 01:17:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:50,335 INFO L93 Difference]: Finished difference Result 1510 states and 2044 transitions. [2019-10-15 01:17:50,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:50,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-15 01:17:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:50,343 INFO L225 Difference]: With dead ends: 1510 [2019-10-15 01:17:50,344 INFO L226 Difference]: Without dead ends: 841 [2019-10-15 01:17:50,347 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 01:17:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-15 01:17:50,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2019-10-15 01:17:50,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2019-10-15 01:17:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1132 transitions. [2019-10-15 01:17:50,400 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1132 transitions. Word has length 230 [2019-10-15 01:17:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:50,401 INFO L462 AbstractCegarLoop]: Abstraction has 840 states and 1132 transitions. [2019-10-15 01:17:50,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1132 transitions. [2019-10-15 01:17:50,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:17:50,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:50,409 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:50,409 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:50,410 INFO L82 PathProgramCache]: Analyzing trace with hash -377999714, now seen corresponding path program 1 times [2019-10-15 01:17:50,410 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:50,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794421283] [2019-10-15 01:17:50,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:17:50,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794421283] [2019-10-15 01:17:50,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:50,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:50,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402401441] [2019-10-15 01:17:50,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:50,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:50,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:50,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:50,688 INFO L87 Difference]: Start difference. First operand 840 states and 1132 transitions. Second operand 3 states. [2019-10-15 01:17:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:50,743 INFO L93 Difference]: Finished difference Result 1413 states and 1904 transitions. [2019-10-15 01:17:50,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:50,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:17:50,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:50,751 INFO L225 Difference]: With dead ends: 1413 [2019-10-15 01:17:50,751 INFO L226 Difference]: Without dead ends: 992 [2019-10-15 01:17:50,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 01:17:50,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-15 01:17:50,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 991. [2019-10-15 01:17:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2019-10-15 01:17:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1343 transitions. [2019-10-15 01:17:50,807 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1343 transitions. Word has length 231 [2019-10-15 01:17:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:50,808 INFO L462 AbstractCegarLoop]: Abstraction has 991 states and 1343 transitions. [2019-10-15 01:17:50,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:50,809 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1343 transitions. [2019-10-15 01:17:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2019-10-15 01:17:50,817 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:50,818 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:50,818 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:50,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:50,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1431521957, now seen corresponding path program 1 times [2019-10-15 01:17:50,819 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:50,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542407925] [2019-10-15 01:17:50,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:50,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:51,184 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-15 01:17:51,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542407925] [2019-10-15 01:17:51,185 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:51,185 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:51,186 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540731233] [2019-10-15 01:17:51,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:51,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:51,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:51,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:51,189 INFO L87 Difference]: Start difference. First operand 991 states and 1343 transitions. Second operand 6 states. [2019-10-15 01:17:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:52,006 INFO L93 Difference]: Finished difference Result 2407 states and 3264 transitions. [2019-10-15 01:17:52,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:17:52,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 378 [2019-10-15 01:17:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:52,019 INFO L225 Difference]: With dead ends: 2407 [2019-10-15 01:17:52,020 INFO L226 Difference]: Without dead ends: 1881 [2019-10-15 01:17:52,023 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:17:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2019-10-15 01:17:52,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1870. [2019-10-15 01:17:52,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2019-10-15 01:17:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2561 transitions. [2019-10-15 01:17:52,133 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2561 transitions. Word has length 378 [2019-10-15 01:17:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:52,134 INFO L462 AbstractCegarLoop]: Abstraction has 1870 states and 2561 transitions. [2019-10-15 01:17:52,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:17:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2561 transitions. [2019-10-15 01:17:52,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-10-15 01:17:52,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:52,147 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:52,147 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:52,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1421916208, now seen corresponding path program 1 times [2019-10-15 01:17:52,148 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:52,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091640878] [2019-10-15 01:17:52,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:52,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:52,149 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:52,546 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-15 01:17:52,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091640878] [2019-10-15 01:17:52,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:52,547 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:17:52,547 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838210746] [2019-10-15 01:17:52,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:17:52,548 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:52,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:17:52,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:52,549 INFO L87 Difference]: Start difference. First operand 1870 states and 2561 transitions. Second operand 13 states. [2019-10-15 01:17:53,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:53,158 INFO L93 Difference]: Finished difference Result 2973 states and 4015 transitions. [2019-10-15 01:17:53,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:53,159 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 379 [2019-10-15 01:17:53,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:53,172 INFO L225 Difference]: With dead ends: 2973 [2019-10-15 01:17:53,172 INFO L226 Difference]: Without dead ends: 1916 [2019-10-15 01:17:53,176 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 01:17:53,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2019-10-15 01:17:53,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1912. [2019-10-15 01:17:53,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-10-15 01:17:53,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2618 transitions. [2019-10-15 01:17:53,286 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2618 transitions. Word has length 379 [2019-10-15 01:17:53,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:53,287 INFO L462 AbstractCegarLoop]: Abstraction has 1912 states and 2618 transitions. [2019-10-15 01:17:53,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:17:53,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2618 transitions. [2019-10-15 01:17:53,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-15 01:17:53,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:53,305 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:53,305 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:53,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:53,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2109443007, now seen corresponding path program 1 times [2019-10-15 01:17:53,306 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:53,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466433433] [2019-10-15 01:17:53,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:53,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:53,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 01:17:53,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466433433] [2019-10-15 01:17:53,615 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:53,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:53,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802898455] [2019-10-15 01:17:53,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:53,617 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:53,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:53,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:53,617 INFO L87 Difference]: Start difference. First operand 1912 states and 2618 transitions. Second operand 3 states. [2019-10-15 01:17:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:53,852 INFO L93 Difference]: Finished difference Result 5430 states and 7564 transitions. [2019-10-15 01:17:53,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:53,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2019-10-15 01:17:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:53,873 INFO L225 Difference]: With dead ends: 5430 [2019-10-15 01:17:53,874 INFO L226 Difference]: Without dead ends: 3554 [2019-10-15 01:17:53,880 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 01:17:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2019-10-15 01:17:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3547. [2019-10-15 01:17:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2019-10-15 01:17:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4907 transitions. [2019-10-15 01:17:54,056 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4907 transitions. Word has length 392 [2019-10-15 01:17:54,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:54,057 INFO L462 AbstractCegarLoop]: Abstraction has 3547 states and 4907 transitions. [2019-10-15 01:17:54,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:54,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4907 transitions. [2019-10-15 01:17:54,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2019-10-15 01:17:54,072 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:54,073 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:54,073 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:54,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:54,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1767957727, now seen corresponding path program 1 times [2019-10-15 01:17:54,074 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:54,074 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360516279] [2019-10-15 01:17:54,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:54,075 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:54,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:54,307 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 01:17:54,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360516279] [2019-10-15 01:17:54,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:54,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:54,309 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252043158] [2019-10-15 01:17:54,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:54,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:54,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:54,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:54,311 INFO L87 Difference]: Start difference. First operand 3547 states and 4907 transitions. Second operand 3 states. [2019-10-15 01:17:54,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:54,646 INFO L93 Difference]: Finished difference Result 8601 states and 12117 transitions. [2019-10-15 01:17:54,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:54,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2019-10-15 01:17:54,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:54,680 INFO L225 Difference]: With dead ends: 8601 [2019-10-15 01:17:54,680 INFO L226 Difference]: Without dead ends: 5102 [2019-10-15 01:17:54,697 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 01:17:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2019-10-15 01:17:55,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5099. [2019-10-15 01:17:55,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-10-15 01:17:55,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7066 transitions. [2019-10-15 01:17:55,047 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7066 transitions. Word has length 394 [2019-10-15 01:17:55,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:55,048 INFO L462 AbstractCegarLoop]: Abstraction has 5099 states and 7066 transitions. [2019-10-15 01:17:55,048 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7066 transitions. [2019-10-15 01:17:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2019-10-15 01:17:55,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:55,068 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:55,069 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:55,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:55,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1960027132, now seen corresponding path program 1 times [2019-10-15 01:17:55,070 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:55,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339193946] [2019-10-15 01:17:55,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:55,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:55,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:17:55,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339193946] [2019-10-15 01:17:55,595 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467082005] [2019-10-15 01:17:55,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:17:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:56,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 4230 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:17:56,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:17:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-15 01:17:56,989 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:17:58,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:58,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:17:58,214 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:58,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:17:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-15 01:17:59,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:17:59,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24, 11] total 41 [2019-10-15 01:17:59,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445878973] [2019-10-15 01:17:59,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:17:59,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:59,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:17:59,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1531, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:17:59,078 INFO L87 Difference]: Start difference. First operand 5099 states and 7066 transitions. Second operand 11 states. [2019-10-15 01:18:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:01,738 INFO L93 Difference]: Finished difference Result 10090 states and 14023 transitions. [2019-10-15 01:18:01,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:18:01,738 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 362 [2019-10-15 01:18:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:01,768 INFO L225 Difference]: With dead ends: 10090 [2019-10-15 01:18:01,768 INFO L226 Difference]: Without dead ends: 5141 [2019-10-15 01:18:01,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 708 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=1843, Unknown=0, NotChecked=0, Total=1980 [2019-10-15 01:18:01,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2019-10-15 01:18:02,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5141. [2019-10-15 01:18:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2019-10-15 01:18:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 7120 transitions. [2019-10-15 01:18:02,094 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 7120 transitions. Word has length 362 [2019-10-15 01:18:02,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:02,094 INFO L462 AbstractCegarLoop]: Abstraction has 5141 states and 7120 transitions. [2019-10-15 01:18:02,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:18:02,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 7120 transitions. [2019-10-15 01:18:02,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-15 01:18:02,118 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:02,119 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:02,339 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:02,339 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:02,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:02,340 INFO L82 PathProgramCache]: Analyzing trace with hash -983027631, now seen corresponding path program 1 times [2019-10-15 01:18:02,340 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:02,340 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732516317] [2019-10-15 01:18:02,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:02,341 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:02,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:18:03,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732516317] [2019-10-15 01:18:03,023 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246194048] [2019-10-15 01:18:03,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:03,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:18:03,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:18:04,387 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-15 01:18:04,388 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:05,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:05,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:05,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-15 01:18:05,581 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:18:05,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [24, 9] total 37 [2019-10-15 01:18:05,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814128138] [2019-10-15 01:18:05,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:18:05,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:05,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:18:05,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1237, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:18:05,584 INFO L87 Difference]: Start difference. First operand 5141 states and 7120 transitions. Second operand 9 states. [2019-10-15 01:18:08,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:08,187 INFO L93 Difference]: Finished difference Result 10099 states and 14050 transitions. [2019-10-15 01:18:08,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:18:08,187 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 363 [2019-10-15 01:18:08,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:08,214 INFO L225 Difference]: With dead ends: 10099 [2019-10-15 01:18:08,214 INFO L226 Difference]: Without dead ends: 5153 [2019-10-15 01:18:08,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 715 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:18:08,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2019-10-15 01:18:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2019-10-15 01:18:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2019-10-15 01:18:08,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7135 transitions. [2019-10-15 01:18:08,463 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7135 transitions. Word has length 363 [2019-10-15 01:18:08,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:08,463 INFO L462 AbstractCegarLoop]: Abstraction has 5153 states and 7135 transitions. [2019-10-15 01:18:08,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:18:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7135 transitions. [2019-10-15 01:18:08,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-15 01:18:08,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:08,487 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:08,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:08,697 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:08,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:08,697 INFO L82 PathProgramCache]: Analyzing trace with hash -651685919, now seen corresponding path program 1 times [2019-10-15 01:18:08,697 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:08,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125882972] [2019-10-15 01:18:08,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:08,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:08,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:09,414 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:18:09,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125882972] [2019-10-15 01:18:09,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618848704] [2019-10-15 01:18:09,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:10,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 4232 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:18:10,510 INFO L279 TraceCheckSpWp]: Computing forward predicates...