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_spec1_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:02,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:02,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:02,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:02,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:02,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:02,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:02,651 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:02,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:02,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:02,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:02,665 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:02,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:02,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:02,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:02,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:02,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:02,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:02,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:02,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:02,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:02,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:02,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:02,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:02,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:02,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:02,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:02,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:02,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:02,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:02,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:02,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:02,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:02,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:02,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:02,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:02,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:02,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:02,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:02,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:02,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:02,710 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:14:02,729 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:02,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:02,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:02,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:02,731 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:02,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:02,731 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:02,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:02,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:02,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:02,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:02,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:02,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:02,733 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:02,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:02,733 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:02,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:02,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:02,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:02,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:02,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:02,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:02,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:02,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:02,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:02,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:02,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:02,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:02,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:14:03,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:03,032 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:03,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:03,037 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:03,037 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:03,038 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-13 21:14:03,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181fee9d8/f0a7a94df5e843b09456bf3b612b6b9c/FLAG0cf739e1d [2019-10-13 21:14:03,766 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:03,768 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-13 21:14:03,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181fee9d8/f0a7a94df5e843b09456bf3b612b6b9c/FLAG0cf739e1d [2019-10-13 21:14:03,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/181fee9d8/f0a7a94df5e843b09456bf3b612b6b9c [2019-10-13 21:14:03,985 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:03,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:03,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:03,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:03,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:03,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:03" (1/1) ... [2019-10-13 21:14:03,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3283d116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:03, skipping insertion in model container [2019-10-13 21:14:03,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:03" (1/1) ... [2019-10-13 21:14:04,001 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:04,088 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:04,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:04,902 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:05,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:05,112 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:05,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05 WrapperNode [2019-10-13 21:14:05,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:05,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:05,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:05,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:05,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:05,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:05,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:05,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:05,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:05,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:05,388 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:05,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:05,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:05,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:05,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:05,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:05,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:05,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:05,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:05,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:05,399 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:14:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:05,418 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:05,419 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:05,420 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:05,440 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:05,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:05,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:05,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:05,444 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:05,448 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:05,450 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:05,451 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:05,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:14:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:05,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:07,663 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:07,664 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:07,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:07 BoogieIcfgContainer [2019-10-13 21:14:07,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:07,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:07,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:07,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:07,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:03" (1/3) ... [2019-10-13 21:14:07,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c19723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:07, skipping insertion in model container [2019-10-13 21:14:07,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05" (2/3) ... [2019-10-13 21:14:07,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c19723 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:07, skipping insertion in model container [2019-10-13 21:14:07,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:07" (3/3) ... [2019-10-13 21:14:07,678 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product16.cil.c [2019-10-13 21:14:07,689 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:07,701 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:07,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:07,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:07,747 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:07,747 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:07,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:07,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:07,747 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:07,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:07,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:07,778 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states. [2019-10-13 21:14:07,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-13 21:14:07,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:07,800 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:07,802 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:07,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:07,807 INFO L82 PathProgramCache]: Analyzing trace with hash 1028752379, now seen corresponding path program 1 times [2019-10-13 21:14:07,816 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:07,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343283742] [2019-10-13 21:14:07,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:07,817 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:07,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:08,468 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343283742] [2019-10-13 21:14:08,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:08,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:08,474 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414375826] [2019-10-13 21:14:08,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:08,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:08,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:08,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:08,501 INFO L87 Difference]: Start difference. First operand 476 states. Second operand 2 states. [2019-10-13 21:14:08,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:08,614 INFO L93 Difference]: Finished difference Result 694 states and 913 transitions. [2019-10-13 21:14:08,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:08,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-13 21:14:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:08,655 INFO L225 Difference]: With dead ends: 694 [2019-10-13 21:14:08,656 INFO L226 Difference]: Without dead ends: 453 [2019-10-13 21:14:08,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:08,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-13 21:14:08,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2019-10-13 21:14:08,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-13 21:14:08,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 601 transitions. [2019-10-13 21:14:08,789 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 601 transitions. Word has length 145 [2019-10-13 21:14:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:08,791 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 601 transitions. [2019-10-13 21:14:08,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 601 transitions. [2019-10-13 21:14:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 21:14:08,799 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:08,799 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:08,799 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:08,800 INFO L82 PathProgramCache]: Analyzing trace with hash -711556920, now seen corresponding path program 1 times [2019-10-13 21:14:08,800 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:08,800 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896552919] [2019-10-13 21:14:08,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:08,800 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:08,801 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:09,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896552919] [2019-10-13 21:14:09,091 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:09,091 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:09,091 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078618171] [2019-10-13 21:14:09,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:09,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:09,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:09,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:09,103 INFO L87 Difference]: Start difference. First operand 453 states and 601 transitions. Second operand 3 states. [2019-10-13 21:14:09,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:09,195 INFO L93 Difference]: Finished difference Result 677 states and 882 transitions. [2019-10-13 21:14:09,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:09,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-13 21:14:09,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:09,204 INFO L225 Difference]: With dead ends: 677 [2019-10-13 21:14:09,205 INFO L226 Difference]: Without dead ends: 456 [2019-10-13 21:14:09,209 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2019-10-13 21:14:09,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 455. [2019-10-13 21:14:09,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-13 21:14:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 603 transitions. [2019-10-13 21:14:09,239 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 603 transitions. Word has length 146 [2019-10-13 21:14:09,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:09,239 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 603 transitions. [2019-10-13 21:14:09,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:09,240 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 603 transitions. [2019-10-13 21:14:09,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 21:14:09,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:09,243 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:09,244 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:09,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:09,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1834454924, now seen corresponding path program 1 times [2019-10-13 21:14:09,244 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:09,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889145300] [2019-10-13 21:14:09,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:09,492 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:09,493 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889145300] [2019-10-13 21:14:09,493 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:09,493 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:09,493 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346441959] [2019-10-13 21:14:09,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:09,494 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:09,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:09,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:09,495 INFO L87 Difference]: Start difference. First operand 455 states and 603 transitions. Second operand 3 states. [2019-10-13 21:14:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:09,530 INFO L93 Difference]: Finished difference Result 886 states and 1204 transitions. [2019-10-13 21:14:09,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:09,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-13 21:14:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:09,535 INFO L225 Difference]: With dead ends: 886 [2019-10-13 21:14:09,535 INFO L226 Difference]: Without dead ends: 496 [2019-10-13 21:14:09,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-13 21:14:09,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2019-10-13 21:14:09,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-13 21:14:09,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 672 transitions. [2019-10-13 21:14:09,563 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 672 transitions. Word has length 152 [2019-10-13 21:14:09,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:09,563 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 672 transitions. [2019-10-13 21:14:09,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:09,564 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 672 transitions. [2019-10-13 21:14:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 21:14:09,567 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:09,567 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:09,568 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:09,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:09,568 INFO L82 PathProgramCache]: Analyzing trace with hash 316559845, now seen corresponding path program 1 times [2019-10-13 21:14:09,568 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:09,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891003946] [2019-10-13 21:14:09,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,569 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:10,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891003946] [2019-10-13 21:14:10,416 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:10,417 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-13 21:14:10,417 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740655725] [2019-10-13 21:14:10,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-13 21:14:10,420 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:10,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-13 21:14:10,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:14:10,422 INFO L87 Difference]: Start difference. First operand 495 states and 672 transitions. Second operand 31 states. [2019-10-13 21:14:15,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:15,329 INFO L93 Difference]: Finished difference Result 1423 states and 1968 transitions. [2019-10-13 21:14:15,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:14:15,330 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 153 [2019-10-13 21:14:15,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:15,338 INFO L225 Difference]: With dead ends: 1423 [2019-10-13 21:14:15,338 INFO L226 Difference]: Without dead ends: 964 [2019-10-13 21:14:15,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-13 21:14:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2019-10-13 21:14:15,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 718. [2019-10-13 21:14:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2019-10-13 21:14:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1025 transitions. [2019-10-13 21:14:15,386 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1025 transitions. Word has length 153 [2019-10-13 21:14:15,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:15,386 INFO L462 AbstractCegarLoop]: Abstraction has 718 states and 1025 transitions. [2019-10-13 21:14:15,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-13 21:14:15,387 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1025 transitions. [2019-10-13 21:14:15,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:14:15,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:15,391 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-13 21:14:15,391 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:15,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:15,392 INFO L82 PathProgramCache]: Analyzing trace with hash 410280145, now seen corresponding path program 1 times [2019-10-13 21:14:15,392 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:15,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195493692] [2019-10-13 21:14:15,392 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:15,393 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:15,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:14:16,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195493692] [2019-10-13 21:14:16,120 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572768094] [2019-10-13 21:14:16,120 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 [2019-10-13 21:14:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:16,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 2366 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:14:16,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:14:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:14:16,887 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:14:17,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:17,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:17,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:14:17,420 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-13 21:14:17,420 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683625799] [2019-10-13 21:14:17,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:14:17,421 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:17,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:14:17,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:17,422 INFO L87 Difference]: Start difference. First operand 718 states and 1025 transitions. Second operand 7 states. [2019-10-13 21:14:18,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:18,624 INFO L93 Difference]: Finished difference Result 1389 states and 2003 transitions. [2019-10-13 21:14:18,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:18,624 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2019-10-13 21:14:18,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:18,628 INFO L225 Difference]: With dead ends: 1389 [2019-10-13 21:14:18,629 INFO L226 Difference]: Without dead ends: 722 [2019-10-13 21:14:18,632 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:14:18,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2019-10-13 21:14:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2019-10-13 21:14:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2019-10-13 21:14:18,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1030 transitions. [2019-10-13 21:14:18,670 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1030 transitions. Word has length 154 [2019-10-13 21:14:18,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:18,671 INFO L462 AbstractCegarLoop]: Abstraction has 722 states and 1030 transitions. [2019-10-13 21:14:18,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:14:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1030 transitions. [2019-10-13 21:14:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:14:18,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:18,676 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:18,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:18,884 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:18,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2095426242, now seen corresponding path program 1 times [2019-10-13 21:14:18,884 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:18,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198237949] [2019-10-13 21:14:18,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:19,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:19,423 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198237949] [2019-10-13 21:14:19,423 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:19,423 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:14:19,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102740903] [2019-10-13 21:14:19,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:14:19,424 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:19,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:14:19,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:14:19,425 INFO L87 Difference]: Start difference. First operand 722 states and 1030 transitions. Second operand 26 states. [2019-10-13 21:14:23,913 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-10-13 21:14:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:27,247 INFO L93 Difference]: Finished difference Result 2306 states and 3160 transitions. [2019-10-13 21:14:27,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-13 21:14:27,248 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 155 [2019-10-13 21:14:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:27,258 INFO L225 Difference]: With dead ends: 2306 [2019-10-13 21:14:27,258 INFO L226 Difference]: Without dead ends: 2094 [2019-10-13 21:14:27,262 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-13 21:14:27,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2019-10-13 21:14:27,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1611. [2019-10-13 21:14:27,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2019-10-13 21:14:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2289 transitions. [2019-10-13 21:14:27,382 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2289 transitions. Word has length 155 [2019-10-13 21:14:27,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:27,384 INFO L462 AbstractCegarLoop]: Abstraction has 1611 states and 2289 transitions. [2019-10-13 21:14:27,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:14:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2289 transitions. [2019-10-13 21:14:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 21:14:27,392 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:27,392 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:27,393 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:27,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:27,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1906791, now seen corresponding path program 1 times [2019-10-13 21:14:27,393 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:27,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136841034] [2019-10-13 21:14:27,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:27,394 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:27,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:27,586 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:14:27,587 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136841034] [2019-10-13 21:14:27,588 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:27,588 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:27,588 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003663529] [2019-10-13 21:14:27,589 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:27,589 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:27,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:27,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:27,590 INFO L87 Difference]: Start difference. First operand 1611 states and 2289 transitions. Second operand 5 states. [2019-10-13 21:14:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:28,705 INFO L93 Difference]: Finished difference Result 3981 states and 5487 transitions. [2019-10-13 21:14:28,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:28,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-10-13 21:14:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:28,725 INFO L225 Difference]: With dead ends: 3981 [2019-10-13 21:14:28,725 INFO L226 Difference]: Without dead ends: 3348 [2019-10-13 21:14:28,729 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:14:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2019-10-13 21:14:28,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3119. [2019-10-13 21:14:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2019-10-13 21:14:28,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4301 transitions. [2019-10-13 21:14:28,906 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4301 transitions. Word has length 156 [2019-10-13 21:14:28,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:28,907 INFO L462 AbstractCegarLoop]: Abstraction has 3119 states and 4301 transitions. [2019-10-13 21:14:28,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4301 transitions. [2019-10-13 21:14:28,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 21:14:28,915 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:28,916 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:28,916 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:28,916 INFO L82 PathProgramCache]: Analyzing trace with hash -523903257, now seen corresponding path program 1 times [2019-10-13 21:14:28,916 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:28,917 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880953947] [2019-10-13 21:14:28,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:28,917 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:28,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:14:29,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880953947] [2019-10-13 21:14:29,099 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:29,099 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:14:29,099 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471685740] [2019-10-13 21:14:29,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:14:29,100 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:29,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:14:29,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:14:29,101 INFO L87 Difference]: Start difference. First operand 3119 states and 4301 transitions. Second operand 10 states. [2019-10-13 21:14:29,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:29,324 INFO L93 Difference]: Finished difference Result 5123 states and 6897 transitions. [2019-10-13 21:14:29,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:14:29,325 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2019-10-13 21:14:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:29,344 INFO L225 Difference]: With dead ends: 5123 [2019-10-13 21:14:29,345 INFO L226 Difference]: Without dead ends: 3200 [2019-10-13 21:14:29,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:14:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2019-10-13 21:14:29,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3181. [2019-10-13 21:14:29,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3181 states. [2019-10-13 21:14:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4395 transitions. [2019-10-13 21:14:29,562 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4395 transitions. Word has length 156 [2019-10-13 21:14:29,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:29,564 INFO L462 AbstractCegarLoop]: Abstraction has 3181 states and 4395 transitions. [2019-10-13 21:14:29,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:14:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4395 transitions. [2019-10-13 21:14:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 21:14:29,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:29,575 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:29,575 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:29,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2012010632, now seen corresponding path program 1 times [2019-10-13 21:14:29,576 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:29,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577634395] [2019-10-13 21:14:29,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:29,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:29,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:29,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:29,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577634395] [2019-10-13 21:14:29,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:29,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:14:29,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37842081] [2019-10-13 21:14:29,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:14:29,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:29,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:14:29,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:14:29,735 INFO L87 Difference]: Start difference. First operand 3181 states and 4395 transitions. Second operand 9 states. [2019-10-13 21:14:30,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:30,062 INFO L93 Difference]: Finished difference Result 3627 states and 4964 transitions. [2019-10-13 21:14:30,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:14:30,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-10-13 21:14:30,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:30,069 INFO L225 Difference]: With dead ends: 3627 [2019-10-13 21:14:30,070 INFO L226 Difference]: Without dead ends: 1186 [2019-10-13 21:14:30,077 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:14:30,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2019-10-13 21:14:30,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1184. [2019-10-13 21:14:30,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2019-10-13 21:14:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1623 transitions. [2019-10-13 21:14:30,132 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1623 transitions. Word has length 156 [2019-10-13 21:14:30,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:30,133 INFO L462 AbstractCegarLoop]: Abstraction has 1184 states and 1623 transitions. [2019-10-13 21:14:30,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:14:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1623 transitions. [2019-10-13 21:14:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 21:14:30,137 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:30,137 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:30,137 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:30,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:30,138 INFO L82 PathProgramCache]: Analyzing trace with hash 938095298, now seen corresponding path program 2 times [2019-10-13 21:14:30,138 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:30,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334539424] [2019-10-13 21:14:30,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:30,139 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:30,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 21:14:30,674 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334539424] [2019-10-13 21:14:30,674 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:30,674 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:14:30,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909838412] [2019-10-13 21:14:30,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:14:30,681 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:14:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:14:30,682 INFO L87 Difference]: Start difference. First operand 1184 states and 1623 transitions. Second operand 24 states. [2019-10-13 21:14:37,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:37,556 INFO L93 Difference]: Finished difference Result 4949 states and 6737 transitions. [2019-10-13 21:14:37,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-10-13 21:14:37,557 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 156 [2019-10-13 21:14:37,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:37,581 INFO L225 Difference]: With dead ends: 4949 [2019-10-13 21:14:37,581 INFO L226 Difference]: Without dead ends: 4352 [2019-10-13 21:14:37,587 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1671 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=769, Invalid=5711, Unknown=0, NotChecked=0, Total=6480 [2019-10-13 21:14:37,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4352 states. [2019-10-13 21:14:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4352 to 3176. [2019-10-13 21:14:37,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3176 states. [2019-10-13 21:14:37,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3176 states to 3176 states and 4387 transitions. [2019-10-13 21:14:37,795 INFO L78 Accepts]: Start accepts. Automaton has 3176 states and 4387 transitions. Word has length 156 [2019-10-13 21:14:37,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:37,796 INFO L462 AbstractCegarLoop]: Abstraction has 3176 states and 4387 transitions. [2019-10-13 21:14:37,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 21:14:37,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3176 states and 4387 transitions. [2019-10-13 21:14:37,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 21:14:37,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:37,804 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:37,804 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:37,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:37,805 INFO L82 PathProgramCache]: Analyzing trace with hash 765435768, now seen corresponding path program 2 times [2019-10-13 21:14:37,805 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:37,805 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46016333] [2019-10-13 21:14:37,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:37,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:37,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 21:14:37,946 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46016333] [2019-10-13 21:14:37,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:37,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:14:37,947 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772188633] [2019-10-13 21:14:37,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:14:37,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:37,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:14:37,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:14:37,950 INFO L87 Difference]: Start difference. First operand 3176 states and 4387 transitions. Second operand 7 states. [2019-10-13 21:14:38,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:38,328 INFO L93 Difference]: Finished difference Result 3622 states and 4956 transitions. [2019-10-13 21:14:38,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:14:38,329 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2019-10-13 21:14:38,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:38,338 INFO L225 Difference]: With dead ends: 3622 [2019-10-13 21:14:38,339 INFO L226 Difference]: Without dead ends: 1186 [2019-10-13 21:14:38,345 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:14:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states. [2019-10-13 21:14:38,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 1184. [2019-10-13 21:14:38,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1184 states. [2019-10-13 21:14:38,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1622 transitions. [2019-10-13 21:14:38,406 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1622 transitions. Word has length 157 [2019-10-13 21:14:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:38,406 INFO L462 AbstractCegarLoop]: Abstraction has 1184 states and 1622 transitions. [2019-10-13 21:14:38,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:14:38,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1622 transitions. [2019-10-13 21:14:38,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 21:14:38,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:38,411 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-13 21:14:38,411 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:38,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1498051715, now seen corresponding path program 3 times [2019-10-13 21:14:38,412 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:38,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258072637] [2019-10-13 21:14:38,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:38,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:38,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat