java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:11,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:11,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:11,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:11,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:11,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:11,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:11,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:11,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:11,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:11,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:11,580 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:11,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:11,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:11,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:11,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:11,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:11,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:11,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:11,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:11,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:11,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:11,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:11,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:11,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:11,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:11,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:11,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:11,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:11,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:11,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:11,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:11,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:11,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:11,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:11,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:11,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:11,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:11,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:11,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:11,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:11,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:11,656 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:11,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:11,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:11,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:11,659 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:11,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:11,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:11,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:11,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:11,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:11,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:11,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:11,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:11,662 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:11,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:11,662 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:11,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:11,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:11,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:11,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:11,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:11,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:11,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:11,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:11,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:11,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:11,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:11,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:11,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:11,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:11,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:12,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:12,003 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:12,003 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:12,004 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-10-15 01:16:12,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b78c047/97e095953be3492eaf45569d51485aca/FLAG23b06b8fa [2019-10-15 01:16:12,742 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:12,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product22.cil.c [2019-10-15 01:16:12,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b78c047/97e095953be3492eaf45569d51485aca/FLAG23b06b8fa [2019-10-15 01:16:12,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b78c047/97e095953be3492eaf45569d51485aca [2019-10-15 01:16:12,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:12,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:12,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:12,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:12,899 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:12,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:12, skipping insertion in model container [2019-10-15 01:16:12,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:12" (1/1) ... [2019-10-15 01:16:12,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:12,994 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:13,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:13,745 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:13,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:13,966 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:13,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13 WrapperNode [2019-10-15 01:16:13,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:13,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:13,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:13,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:13,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:13,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... [2019-10-15 01:16:14,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:14,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:14,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:14,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:14,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:14,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:14,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:14,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:14,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:14,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:14,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:14,265 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:14,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:14,270 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:14,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:16:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:14,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:14,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:14,283 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:14,286 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:14,287 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:14,288 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:14,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:14,290 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:14,291 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:14,292 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:14,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:14,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:14,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:14,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:14,297 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:14,298 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:14,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-15 01:16:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:14,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:16,720 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:16,720 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:16,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:16 BoogieIcfgContainer [2019-10-15 01:16:16,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:16,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:16,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:16,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:16,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:12" (1/3) ... [2019-10-15 01:16:16,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ac2996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:16, skipping insertion in model container [2019-10-15 01:16:16,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:13" (2/3) ... [2019-10-15 01:16:16,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ac2996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:16, skipping insertion in model container [2019-10-15 01:16:16,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:16" (3/3) ... [2019-10-15 01:16:16,734 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product22.cil.c [2019-10-15 01:16:16,745 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:16,760 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:16,772 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:16,814 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:16,814 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:16,814 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:16,815 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:16,815 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:16,815 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:16,815 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:16,815 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:16,864 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states. [2019-10-15 01:16:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:16:16,912 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:16,914 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:16,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:16,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:16,926 INFO L82 PathProgramCache]: Analyzing trace with hash 769070679, now seen corresponding path program 1 times [2019-10-15 01:16:16,948 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:16,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120192192] [2019-10-15 01:16:16,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:16,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:17,650 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:17,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120192192] [2019-10-15 01:16:17,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:17,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:17,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599101954] [2019-10-15 01:16:17,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:17,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:17,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:17,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:17,679 INFO L87 Difference]: Start difference. First operand 516 states. Second operand 2 states. [2019-10-15 01:16:17,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:17,763 INFO L93 Difference]: Finished difference Result 763 states and 1004 transitions. [2019-10-15 01:16:17,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:17,764 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-15 01:16:17,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:17,788 INFO L225 Difference]: With dead ends: 763 [2019-10-15 01:16:17,789 INFO L226 Difference]: Without dead ends: 493 [2019-10-15 01:16:17,796 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-15 01:16:17,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 493. [2019-10-15 01:16:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2019-10-15 01:16:17,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 653 transitions. [2019-10-15 01:16:17,949 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 653 transitions. Word has length 176 [2019-10-15 01:16:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:17,953 INFO L462 AbstractCegarLoop]: Abstraction has 493 states and 653 transitions. [2019-10-15 01:16:17,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 653 transitions. [2019-10-15 01:16:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:16:17,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:17,962 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:17,962 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:17,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:17,963 INFO L82 PathProgramCache]: Analyzing trace with hash -688559635, now seen corresponding path program 1 times [2019-10-15 01:16:17,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:17,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278089165] [2019-10-15 01:16:17,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:17,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:18,301 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:18,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278089165] [2019-10-15 01:16:18,302 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:18,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:18,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032788237] [2019-10-15 01:16:18,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:18,312 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:18,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:18,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,313 INFO L87 Difference]: Start difference. First operand 493 states and 653 transitions. Second operand 3 states. [2019-10-15 01:16:18,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,412 INFO L93 Difference]: Finished difference Result 746 states and 972 transitions. [2019-10-15 01:16:18,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:18,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 01:16:18,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,467 INFO L225 Difference]: With dead ends: 746 [2019-10-15 01:16:18,469 INFO L226 Difference]: Without dead ends: 496 [2019-10-15 01:16:18,472 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-15 01:16:18,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2019-10-15 01:16:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-15 01:16:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 655 transitions. [2019-10-15 01:16:18,509 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 655 transitions. Word has length 177 [2019-10-15 01:16:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,511 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 655 transitions. [2019-10-15 01:16:18,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:18,511 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 655 transitions. [2019-10-15 01:16:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:16:18,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,517 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,518 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,518 INFO L82 PathProgramCache]: Analyzing trace with hash -786901730, now seen corresponding path program 1 times [2019-10-15 01:16:18,518 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210739433] [2019-10-15 01:16:18,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,519 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:18,779 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210739433] [2019-10-15 01:16:18,780 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:18,780 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:18,780 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780659714] [2019-10-15 01:16:18,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:18,785 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:18,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:18,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,786 INFO L87 Difference]: Start difference. First operand 495 states and 655 transitions. Second operand 3 states. [2019-10-15 01:16:18,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,840 INFO L93 Difference]: Finished difference Result 968 states and 1311 transitions. [2019-10-15 01:16:18,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:18,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-15 01:16:18,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,852 INFO L225 Difference]: With dead ends: 968 [2019-10-15 01:16:18,853 INFO L226 Difference]: Without dead ends: 538 [2019-10-15 01:16:18,856 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:18,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-10-15 01:16:18,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 537. [2019-10-15 01:16:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-10-15 01:16:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 727 transitions. [2019-10-15 01:16:18,906 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 727 transitions. Word has length 189 [2019-10-15 01:16:18,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,907 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 727 transitions. [2019-10-15 01:16:18,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:18,908 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 727 transitions. [2019-10-15 01:16:18,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:16:18,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,923 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,923 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,924 INFO L82 PathProgramCache]: Analyzing trace with hash 647973382, now seen corresponding path program 1 times [2019-10-15 01:16:18,925 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679529545] [2019-10-15 01:16:18,925 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,928 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:19,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679529545] [2019-10-15 01:16:19,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:19,202 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838001772] [2019-10-15 01:16:19,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:19,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:19,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,254 INFO L87 Difference]: Start difference. First operand 537 states and 727 transitions. Second operand 3 states. [2019-10-15 01:16:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,302 INFO L93 Difference]: Finished difference Result 1091 states and 1522 transitions. [2019-10-15 01:16:19,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:19,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:16:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,308 INFO L225 Difference]: With dead ends: 1091 [2019-10-15 01:16:19,308 INFO L226 Difference]: Without dead ends: 619 [2019-10-15 01:16:19,310 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-15 01:16:19,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 618. [2019-10-15 01:16:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-15 01:16:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 865 transitions. [2019-10-15 01:16:19,339 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 865 transitions. Word has length 190 [2019-10-15 01:16:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:19,340 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 865 transitions. [2019-10-15 01:16:19,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 865 transitions. [2019-10-15 01:16:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:16:19,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:19,345 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:19,345 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:19,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:19,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1688592318, now seen corresponding path program 1 times [2019-10-15 01:16:19,346 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:19,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507667666] [2019-10-15 01:16:19,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:19,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507667666] [2019-10-15 01:16:19,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:19,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008609398] [2019-10-15 01:16:19,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:19,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:19,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,522 INFO L87 Difference]: Start difference. First operand 618 states and 865 transitions. Second operand 3 states. [2019-10-15 01:16:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,563 INFO L93 Difference]: Finished difference Result 1328 states and 1926 transitions. [2019-10-15 01:16:19,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:19,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-15 01:16:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,569 INFO L225 Difference]: With dead ends: 1328 [2019-10-15 01:16:19,569 INFO L226 Difference]: Without dead ends: 775 [2019-10-15 01:16:19,571 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:19,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2019-10-15 01:16:19,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 774. [2019-10-15 01:16:19,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 774 states. [2019-10-15 01:16:19,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1129 transitions. [2019-10-15 01:16:19,604 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1129 transitions. Word has length 191 [2019-10-15 01:16:19,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:19,605 INFO L462 AbstractCegarLoop]: Abstraction has 774 states and 1129 transitions. [2019-10-15 01:16:19,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:19,605 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1129 transitions. [2019-10-15 01:16:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:16:19,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:19,610 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:19,611 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:19,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:19,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1410664810, now seen corresponding path program 1 times [2019-10-15 01:16:19,611 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:19,612 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083385401] [2019-10-15 01:16:19,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,612 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:20,002 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:20,003 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083385401] [2019-10-15 01:16:20,004 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:20,004 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:20,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505697092] [2019-10-15 01:16:20,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:20,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:20,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:20,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:20,007 INFO L87 Difference]: Start difference. First operand 774 states and 1129 transitions. Second operand 11 states. [2019-10-15 01:16:24,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:24,697 INFO L93 Difference]: Finished difference Result 2730 states and 3704 transitions. [2019-10-15 01:16:24,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:24,700 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-15 01:16:24,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:24,714 INFO L225 Difference]: With dead ends: 2730 [2019-10-15 01:16:24,714 INFO L226 Difference]: Without dead ends: 2185 [2019-10-15 01:16:24,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:24,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2185 states. [2019-10-15 01:16:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2185 to 2170. [2019-10-15 01:16:24,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2019-10-15 01:16:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 2938 transitions. [2019-10-15 01:16:24,818 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 2938 transitions. Word has length 193 [2019-10-15 01:16:24,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:24,819 INFO L462 AbstractCegarLoop]: Abstraction has 2170 states and 2938 transitions. [2019-10-15 01:16:24,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:24,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 2938 transitions. [2019-10-15 01:16:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:24,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:24,825 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:24,826 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:24,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2066868888, now seen corresponding path program 1 times [2019-10-15 01:16:24,826 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:24,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376677686] [2019-10-15 01:16:24,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:25,196 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376677686] [2019-10-15 01:16:25,196 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:16:25,197 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205477040] [2019-10-15 01:16:25,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:25,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:25,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:25,198 INFO L87 Difference]: Start difference. First operand 2170 states and 2938 transitions. Second operand 16 states. [2019-10-15 01:16:25,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:25,689 INFO L93 Difference]: Finished difference Result 3602 states and 4793 transitions. [2019-10-15 01:16:25,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:16:25,690 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 194 [2019-10-15 01:16:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:25,707 INFO L225 Difference]: With dead ends: 3602 [2019-10-15 01:16:25,708 INFO L226 Difference]: Without dead ends: 1795 [2019-10-15 01:16:25,715 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:16:25,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2019-10-15 01:16:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1748. [2019-10-15 01:16:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1748 states. [2019-10-15 01:16:25,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2379 transitions. [2019-10-15 01:16:25,818 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2379 transitions. Word has length 194 [2019-10-15 01:16:25,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,819 INFO L462 AbstractCegarLoop]: Abstraction has 1748 states and 2379 transitions. [2019-10-15 01:16:25,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:25,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2379 transitions. [2019-10-15 01:16:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-15 01:16:25,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,825 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:25,825 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,826 INFO L82 PathProgramCache]: Analyzing trace with hash 470827017, now seen corresponding path program 1 times [2019-10-15 01:16:25,826 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,826 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319847434] [2019-10-15 01:16:25,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,827 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:26,016 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319847434] [2019-10-15 01:16:26,017 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:26,017 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:26,017 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058010259] [2019-10-15 01:16:26,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:26,018 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:26,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:26,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:26,020 INFO L87 Difference]: Start difference. First operand 1748 states and 2379 transitions. Second operand 6 states. [2019-10-15 01:16:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:26,704 INFO L93 Difference]: Finished difference Result 4670 states and 6300 transitions. [2019-10-15 01:16:26,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:26,705 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-15 01:16:26,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:26,728 INFO L225 Difference]: With dead ends: 4670 [2019-10-15 01:16:26,728 INFO L226 Difference]: Without dead ends: 3487 [2019-10-15 01:16:26,734 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:26,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3487 states. [2019-10-15 01:16:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3487 to 3416. [2019-10-15 01:16:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3416 states. [2019-10-15 01:16:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 4702 transitions. [2019-10-15 01:16:26,906 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 4702 transitions. Word has length 203 [2019-10-15 01:16:26,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,907 INFO L462 AbstractCegarLoop]: Abstraction has 3416 states and 4702 transitions. [2019-10-15 01:16:26,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:26,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 4702 transitions. [2019-10-15 01:16:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:26,916 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,917 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:26,917 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1952139048, now seen corresponding path program 1 times [2019-10-15 01:16:26,918 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,918 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047964876] [2019-10-15 01:16:26,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:27,169 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:27,170 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047964876] [2019-10-15 01:16:27,170 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:27,170 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:16:27,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853204074] [2019-10-15 01:16:27,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:27,171 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:27,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:27,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:27,172 INFO L87 Difference]: Start difference. First operand 3416 states and 4702 transitions. Second operand 9 states. [2019-10-15 01:16:27,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:27,575 INFO L93 Difference]: Finished difference Result 5805 states and 7737 transitions. [2019-10-15 01:16:27,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:27,576 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2019-10-15 01:16:27,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:27,598 INFO L225 Difference]: With dead ends: 5805 [2019-10-15 01:16:27,598 INFO L226 Difference]: Without dead ends: 3434 [2019-10-15 01:16:27,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:16:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2019-10-15 01:16:27,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3404. [2019-10-15 01:16:27,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3404 states. [2019-10-15 01:16:27,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4676 transitions. [2019-10-15 01:16:27,882 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4676 transitions. Word has length 204 [2019-10-15 01:16:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:27,883 INFO L462 AbstractCegarLoop]: Abstraction has 3404 states and 4676 transitions. [2019-10-15 01:16:27,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4676 transitions. [2019-10-15 01:16:27,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-15 01:16:27,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:27,894 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:27,895 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:27,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:27,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1365362929, now seen corresponding path program 1 times [2019-10-15 01:16:27,896 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:27,896 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690555918] [2019-10-15 01:16:27,896 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,897 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:28,189 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:28,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690555918] [2019-10-15 01:16:28,190 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:28,190 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:28,191 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090805354] [2019-10-15 01:16:28,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:28,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:28,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:28,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:28,194 INFO L87 Difference]: Start difference. First operand 3404 states and 4676 transitions. Second operand 5 states. [2019-10-15 01:16:29,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:29,545 INFO L93 Difference]: Finished difference Result 11031 states and 14823 transitions. [2019-10-15 01:16:29,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:29,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-15 01:16:29,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:29,593 INFO L225 Difference]: With dead ends: 11031 [2019-10-15 01:16:29,594 INFO L226 Difference]: Without dead ends: 7882 [2019-10-15 01:16:29,610 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:29,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7882 states. [2019-10-15 01:16:29,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7882 to 7616. [2019-10-15 01:16:29,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7616 states. [2019-10-15 01:16:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7616 states to 7616 states and 10488 transitions. [2019-10-15 01:16:30,011 INFO L78 Accepts]: Start accepts. Automaton has 7616 states and 10488 transitions. Word has length 204 [2019-10-15 01:16:30,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:30,011 INFO L462 AbstractCegarLoop]: Abstraction has 7616 states and 10488 transitions. [2019-10-15 01:16:30,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:30,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7616 states and 10488 transitions. [2019-10-15 01:16:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 01:16:30,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:30,031 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:30,031 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:30,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:30,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1812320115, now seen corresponding path program 1 times [2019-10-15 01:16:30,032 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:30,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028947855] [2019-10-15 01:16:30,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:30,264 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028947855] [2019-10-15 01:16:30,264 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:30,264 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:30,265 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254529742] [2019-10-15 01:16:30,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:30,265 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:30,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:30,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:30,266 INFO L87 Difference]: Start difference. First operand 7616 states and 10488 transitions. Second operand 8 states. [2019-10-15 01:16:34,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:34,817 INFO L93 Difference]: Finished difference Result 23214 states and 33454 transitions. [2019-10-15 01:16:34,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:34,818 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-15 01:16:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:34,931 INFO L225 Difference]: With dead ends: 23214 [2019-10-15 01:16:34,931 INFO L226 Difference]: Without dead ends: 15663 [2019-10-15 01:16:34,962 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:34,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15663 states. [2019-10-15 01:16:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15663 to 9868. [2019-10-15 01:16:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9868 states. [2019-10-15 01:16:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9868 states to 9868 states and 14984 transitions. [2019-10-15 01:16:35,716 INFO L78 Accepts]: Start accepts. Automaton has 9868 states and 14984 transitions. Word has length 241 [2019-10-15 01:16:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,718 INFO L462 AbstractCegarLoop]: Abstraction has 9868 states and 14984 transitions. [2019-10-15 01:16:35,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:35,718 INFO L276 IsEmpty]: Start isEmpty. Operand 9868 states and 14984 transitions. [2019-10-15 01:16:35,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:16:35,761 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,761 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,761 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1051604355, now seen corresponding path program 1 times [2019-10-15 01:16:35,762 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616913650] [2019-10-15 01:16:35,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:36,002 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616913650] [2019-10-15 01:16:36,003 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:36,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:36,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952762526] [2019-10-15 01:16:36,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:36,004 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:36,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:36,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:36,005 INFO L87 Difference]: Start difference. First operand 9868 states and 14984 transitions. Second operand 8 states. [2019-10-15 01:16:41,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:41,467 INFO L93 Difference]: Finished difference Result 30506 states and 49190 transitions. [2019-10-15 01:16:41,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:41,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-15 01:16:41,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:41,572 INFO L225 Difference]: With dead ends: 30506 [2019-10-15 01:16:41,572 INFO L226 Difference]: Without dead ends: 20703 [2019-10-15 01:16:41,615 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20703 states. [2019-10-15 01:16:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20703 to 14492. [2019-10-15 01:16:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14492 states. [2019-10-15 01:16:42,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14492 states to 14492 states and 24816 transitions. [2019-10-15 01:16:42,615 INFO L78 Accepts]: Start accepts. Automaton has 14492 states and 24816 transitions. Word has length 227 [2019-10-15 01:16:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:42,616 INFO L462 AbstractCegarLoop]: Abstraction has 14492 states and 24816 transitions. [2019-10-15 01:16:42,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 14492 states and 24816 transitions. [2019-10-15 01:16:42,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-15 01:16:42,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:42,712 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:42,713 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:42,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:42,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1204731446, now seen corresponding path program 1 times [2019-10-15 01:16:42,713 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:42,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312823534] [2019-10-15 01:16:42,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:42,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:42,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:42,973 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:42,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312823534] [2019-10-15 01:16:42,973 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:42,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:42,974 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386032948] [2019-10-15 01:16:42,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:42,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:42,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:42,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:42,976 INFO L87 Difference]: Start difference. First operand 14492 states and 24816 transitions. Second operand 3 states. [2019-10-15 01:16:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:43,464 INFO L93 Difference]: Finished difference Result 33723 states and 60331 transitions. [2019-10-15 01:16:43,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:43,465 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-10-15 01:16:43,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:43,581 INFO L225 Difference]: With dead ends: 33723 [2019-10-15 01:16:43,582 INFO L226 Difference]: Without dead ends: 19296