java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:04,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:04,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:04,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:04,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:04,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:04,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:04,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:04,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:04,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:04,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:04,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:04,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:04,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:04,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:04,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:04,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:04,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:04,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:04,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:04,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:04,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:04,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:04,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:04,280 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:04,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:04,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:04,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:04,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:04,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:04,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:04,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:04,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:04,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:04,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:04,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:04,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:04,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:04,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:04,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:04,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:04,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:14:04,318 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:04,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:04,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:04,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:04,320 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:04,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:04,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:04,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:04,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:04,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:04,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:04,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:04,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:04,322 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:04,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:04,322 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:04,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:04,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:04,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:04,323 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:04,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:04,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:04,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:04,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:04,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:04,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:04,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:04,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:04,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:14:04,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:04,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:04,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:04,620 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:04,621 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:04,621 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-10-13 21:14:04,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1c05f54/8157b52ce53a46e3b14bc7cd81676293/FLAG254e895db [2019-10-13 21:14:05,276 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:05,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-10-13 21:14:05,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1c05f54/8157b52ce53a46e3b14bc7cd81676293/FLAG254e895db [2019-10-13 21:14:05,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa1c05f54/8157b52ce53a46e3b14bc7cd81676293 [2019-10-13 21:14:05,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:05,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:05,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:05,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:05,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:05,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11e8ed57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:05, skipping insertion in model container [2019-10-13 21:14:05,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:05" (1/1) ... [2019-10-13 21:14:05,570 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:05,652 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:06,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:06,443 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:06,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:06,620 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:06,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06 WrapperNode [2019-10-13 21:14:06,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:06,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:06,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:06,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:06,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:06,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:06,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:06,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:06,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:06,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:06,849 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:06,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:06,851 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:06,852 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:06,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:06,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:14:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:06,855 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:06,856 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:06,857 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:06,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:14:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:14:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:06,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:06,864 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:06,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:06,867 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:06,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:06,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:06,870 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:06,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:06,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:06,872 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:06,873 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:06,874 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:06,875 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:06,876 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:06,877 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:06,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:06,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:06,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:06,881 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:06,882 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:14:06,883 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:06,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:06,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:06,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:06,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:09,032 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:09,033 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:09,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:09 BoogieIcfgContainer [2019-10-13 21:14:09,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:09,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:09,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:09,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:09,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:05" (1/3) ... [2019-10-13 21:14:09,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521115d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:09, skipping insertion in model container [2019-10-13 21:14:09,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06" (2/3) ... [2019-10-13 21:14:09,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521115d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:09, skipping insertion in model container [2019-10-13 21:14:09,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:09" (3/3) ... [2019-10-13 21:14:09,044 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2019-10-13 21:14:09,055 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:09,067 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:09,078 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:09,118 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:09,118 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:09,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:09,119 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:09,119 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:09,119 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:09,119 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:09,119 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:09,159 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states. [2019-10-13 21:14:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:14:09,194 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:09,195 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:09,201 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:09,208 INFO L82 PathProgramCache]: Analyzing trace with hash -165489832, now seen corresponding path program 1 times [2019-10-13 21:14:09,218 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:09,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462562729] [2019-10-13 21:14:09,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,227 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:09,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:09,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:09,931 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:09,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462562729] [2019-10-13 21:14:09,933 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:09,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:09,933 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775049707] [2019-10-13 21:14:09,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:09,940 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:09,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:09,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:09,957 INFO L87 Difference]: Start difference. First operand 559 states. Second operand 2 states. [2019-10-13 21:14:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:10,025 INFO L93 Difference]: Finished difference Result 756 states and 1036 transitions. [2019-10-13 21:14:10,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:10,027 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 21:14:10,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:10,049 INFO L225 Difference]: With dead ends: 756 [2019-10-13 21:14:10,049 INFO L226 Difference]: Without dead ends: 506 [2019-10-13 21:14:10,056 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-10-13 21:14:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2019-10-13 21:14:10,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-10-13 21:14:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 697 transitions. [2019-10-13 21:14:10,168 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 697 transitions. Word has length 154 [2019-10-13 21:14:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:10,170 INFO L462 AbstractCegarLoop]: Abstraction has 506 states and 697 transitions. [2019-10-13 21:14:10,170 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 697 transitions. [2019-10-13 21:14:10,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:14:10,174 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:10,175 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:10,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:10,175 INFO L82 PathProgramCache]: Analyzing trace with hash 251195075, now seen corresponding path program 1 times [2019-10-13 21:14:10,176 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:10,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778066031] [2019-10-13 21:14:10,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,176 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:10,467 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778066031] [2019-10-13 21:14:10,468 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:10,468 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:10,468 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847244725] [2019-10-13 21:14:10,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:10,476 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:10,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:10,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:10,477 INFO L87 Difference]: Start difference. First operand 506 states and 697 transitions. Second operand 3 states. [2019-10-13 21:14:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:10,563 INFO L93 Difference]: Finished difference Result 739 states and 1002 transitions. [2019-10-13 21:14:10,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:10,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 21:14:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:10,572 INFO L225 Difference]: With dead ends: 739 [2019-10-13 21:14:10,572 INFO L226 Difference]: Without dead ends: 509 [2019-10-13 21:14:10,574 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-10-13 21:14:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 508. [2019-10-13 21:14:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-10-13 21:14:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 699 transitions. [2019-10-13 21:14:10,614 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 699 transitions. Word has length 155 [2019-10-13 21:14:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:10,616 INFO L462 AbstractCegarLoop]: Abstraction has 508 states and 699 transitions. [2019-10-13 21:14:10,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:10,616 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 699 transitions. [2019-10-13 21:14:10,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:10,622 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:10,622 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:10,622 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:10,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1211628493, now seen corresponding path program 1 times [2019-10-13 21:14:10,623 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:10,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707752382] [2019-10-13 21:14:10,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,624 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:10,838 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:10,838 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707752382] [2019-10-13 21:14:10,839 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:10,839 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:10,839 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077264767] [2019-10-13 21:14:10,842 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:10,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:10,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:10,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:10,844 INFO L87 Difference]: Start difference. First operand 508 states and 699 transitions. Second operand 3 states. [2019-10-13 21:14:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:10,894 INFO L93 Difference]: Finished difference Result 994 states and 1399 transitions. [2019-10-13 21:14:10,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:10,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 21:14:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:10,902 INFO L225 Difference]: With dead ends: 994 [2019-10-13 21:14:10,902 INFO L226 Difference]: Without dead ends: 551 [2019-10-13 21:14:10,904 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:10,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-13 21:14:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-10-13 21:14:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-13 21:14:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 771 transitions. [2019-10-13 21:14:10,946 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 771 transitions. Word has length 165 [2019-10-13 21:14:10,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:10,951 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 771 transitions. [2019-10-13 21:14:10,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 771 transitions. [2019-10-13 21:14:10,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 21:14:10,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:10,961 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:10,962 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:10,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:10,962 INFO L82 PathProgramCache]: Analyzing trace with hash 964514250, now seen corresponding path program 1 times [2019-10-13 21:14:10,962 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:10,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307523608] [2019-10-13 21:14:10,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,127 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:11,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307523608] [2019-10-13 21:14:11,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:11,129 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434070922] [2019-10-13 21:14:11,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:11,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:11,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,131 INFO L87 Difference]: Start difference. First operand 550 states and 771 transitions. Second operand 3 states. [2019-10-13 21:14:11,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,176 INFO L93 Difference]: Finished difference Result 1117 states and 1610 transitions. [2019-10-13 21:14:11,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:11,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-10-13 21:14:11,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,182 INFO L225 Difference]: With dead ends: 1117 [2019-10-13 21:14:11,183 INFO L226 Difference]: Without dead ends: 632 [2019-10-13 21:14:11,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-10-13 21:14:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-10-13 21:14:11,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-13 21:14:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 909 transitions. [2019-10-13 21:14:11,226 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 909 transitions. Word has length 166 [2019-10-13 21:14:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,228 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 909 transitions. [2019-10-13 21:14:11,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 909 transitions. [2019-10-13 21:14:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 21:14:11,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,235 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:11,235 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1255605427, now seen corresponding path program 1 times [2019-10-13 21:14:11,236 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,237 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141864965] [2019-10-13 21:14:11,237 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,237 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,454 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:11,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141864965] [2019-10-13 21:14:11,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,455 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:11,455 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635830469] [2019-10-13 21:14:11,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:11,456 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:11,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,457 INFO L87 Difference]: Start difference. First operand 631 states and 909 transitions. Second operand 3 states. [2019-10-13 21:14:11,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,499 INFO L93 Difference]: Finished difference Result 1354 states and 2014 transitions. [2019-10-13 21:14:11,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:11,500 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-13 21:14:11,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,507 INFO L225 Difference]: With dead ends: 1354 [2019-10-13 21:14:11,507 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 21:14:11,509 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 21:14:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 787. [2019-10-13 21:14:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-13 21:14:11,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1173 transitions. [2019-10-13 21:14:11,553 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1173 transitions. Word has length 167 [2019-10-13 21:14:11,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,554 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1173 transitions. [2019-10-13 21:14:11,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:11,554 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1173 transitions. [2019-10-13 21:14:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:14:11,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,559 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:11,559 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,559 INFO L82 PathProgramCache]: Analyzing trace with hash 631123274, now seen corresponding path program 1 times [2019-10-13 21:14:11,560 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823793780] [2019-10-13 21:14:11,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,560 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:11,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823793780] [2019-10-13 21:14:11,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:11,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346012984] [2019-10-13 21:14:11,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:11,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:11,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,699 INFO L87 Difference]: Start difference. First operand 787 states and 1173 transitions. Second operand 3 states. [2019-10-13 21:14:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,743 INFO L93 Difference]: Finished difference Result 1810 states and 2786 transitions. [2019-10-13 21:14:11,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:11,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 21:14:11,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,750 INFO L225 Difference]: With dead ends: 1810 [2019-10-13 21:14:11,750 INFO L226 Difference]: Without dead ends: 1088 [2019-10-13 21:14:11,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-10-13 21:14:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1087. [2019-10-13 21:14:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2019-10-13 21:14:11,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1677 transitions. [2019-10-13 21:14:11,797 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1677 transitions. Word has length 168 [2019-10-13 21:14:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,798 INFO L462 AbstractCegarLoop]: Abstraction has 1087 states and 1677 transitions. [2019-10-13 21:14:11,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:11,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1677 transitions. [2019-10-13 21:14:11,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 21:14:11,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,805 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:11,805 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1431519593, now seen corresponding path program 1 times [2019-10-13 21:14:11,806 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,806 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104253620] [2019-10-13 21:14:11,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,806 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 21:14:12,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104253620] [2019-10-13 21:14:12,783 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:12,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-13 21:14:12,783 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543504171] [2019-10-13 21:14:12,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-13 21:14:12,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:12,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-13 21:14:12,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:14:12,786 INFO L87 Difference]: Start difference. First operand 1087 states and 1677 transitions. Second operand 35 states. [2019-10-13 21:14:18,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:18,660 INFO L93 Difference]: Finished difference Result 3203 states and 5062 transitions. [2019-10-13 21:14:18,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 21:14:18,661 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 171 [2019-10-13 21:14:18,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:18,680 INFO L225 Difference]: With dead ends: 3203 [2019-10-13 21:14:18,681 INFO L226 Difference]: Without dead ends: 2148 [2019-10-13 21:14:18,690 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-13 21:14:18,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2019-10-13 21:14:18,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1893. [2019-10-13 21:14:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-10-13 21:14:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3064 transitions. [2019-10-13 21:14:18,824 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3064 transitions. Word has length 171 [2019-10-13 21:14:18,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:18,825 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 3064 transitions. [2019-10-13 21:14:18,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-13 21:14:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3064 transitions. [2019-10-13 21:14:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 21:14:18,835 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:18,835 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:18,836 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1767965097, now seen corresponding path program 1 times [2019-10-13 21:14:18,837 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:18,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98455278] [2019-10-13 21:14:18,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,837 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:18,991 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98455278] [2019-10-13 21:14:18,992 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:18,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:18,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252261746] [2019-10-13 21:14:18,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:18,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:18,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:18,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:18,993 INFO L87 Difference]: Start difference. First operand 1893 states and 3064 transitions. Second operand 3 states. [2019-10-13 21:14:19,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:19,103 INFO L93 Difference]: Finished difference Result 4860 states and 8038 transitions. [2019-10-13 21:14:19,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:19,104 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 21:14:19,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:19,125 INFO L225 Difference]: With dead ends: 4860 [2019-10-13 21:14:19,126 INFO L226 Difference]: Without dead ends: 3046 [2019-10-13 21:14:19,136 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:19,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2019-10-13 21:14:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3045. [2019-10-13 21:14:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2019-10-13 21:14:19,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 5032 transitions. [2019-10-13 21:14:19,340 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 5032 transitions. Word has length 170 [2019-10-13 21:14:19,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:19,340 INFO L462 AbstractCegarLoop]: Abstraction has 3045 states and 5032 transitions. [2019-10-13 21:14:19,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:19,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 5032 transitions. [2019-10-13 21:14:19,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 21:14:19,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:19,359 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:19,360 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:19,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1753128692, now seen corresponding path program 1 times [2019-10-13 21:14:19,360 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:19,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324604024] [2019-10-13 21:14:19,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:19,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:19,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,062 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:14:20,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324604024] [2019-10-13 21:14:20,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653221782] [2019-10-13 21:14:20,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 2683 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:14:20,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:14:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:14:20,903 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:14:21,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:21,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:21,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:14:21,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-13 21:14:21,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169594351] [2019-10-13 21:14:21,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:14:21,373 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:21,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:14:21,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:21,374 INFO L87 Difference]: Start difference. First operand 3045 states and 5032 transitions. Second operand 7 states. [2019-10-13 21:14:22,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:22,549 INFO L93 Difference]: Finished difference Result 6043 states and 10045 transitions. [2019-10-13 21:14:22,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:22,550 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-10-13 21:14:22,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:22,569 INFO L225 Difference]: With dead ends: 6043 [2019-10-13 21:14:22,570 INFO L226 Difference]: Without dead ends: 3049 [2019-10-13 21:14:22,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 339 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:14:22,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2019-10-13 21:14:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2019-10-13 21:14:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2019-10-13 21:14:22,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 5037 transitions. [2019-10-13 21:14:22,776 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 5037 transitions. Word has length 173 [2019-10-13 21:14:22,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:22,777 INFO L462 AbstractCegarLoop]: Abstraction has 3049 states and 5037 transitions. [2019-10-13 21:14:22,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:14:22,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 5037 transitions. [2019-10-13 21:14:22,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 21:14:22,796 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:22,796 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:23,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:23,006 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:23,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:23,006 INFO L82 PathProgramCache]: Analyzing trace with hash 109986769, now seen corresponding path program 1 times [2019-10-13 21:14:23,006 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:23,007 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827044268] [2019-10-13 21:14:23,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:23,007 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:23,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:23,484 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827044268] [2019-10-13 21:14:23,485 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:23,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:14:23,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254823681] [2019-10-13 21:14:23,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:14:23,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:23,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:14:23,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:14:23,487 INFO L87 Difference]: Start difference. First operand 3049 states and 5037 transitions. Second operand 26 states. [2019-10-13 21:14:31,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:31,493 INFO L93 Difference]: Finished difference Result 6996 states and 11291 transitions. [2019-10-13 21:14:31,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-13 21:14:31,494 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-10-13 21:14:31,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:31,538 INFO L225 Difference]: With dead ends: 6996 [2019-10-13 21:14:31,539 INFO L226 Difference]: Without dead ends: 6775 [2019-10-13 21:14:31,546 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-13 21:14:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2019-10-13 21:14:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6274. [2019-10-13 21:14:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6274 states. [2019-10-13 21:14:31,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 10337 transitions. [2019-10-13 21:14:31,945 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 10337 transitions. Word has length 174 [2019-10-13 21:14:31,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:31,945 INFO L462 AbstractCegarLoop]: Abstraction has 6274 states and 10337 transitions. [2019-10-13 21:14:31,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:14:31,946 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 10337 transitions. [2019-10-13 21:14:31,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:31,972 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:31,973 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:31,973 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:31,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:31,974 INFO L82 PathProgramCache]: Analyzing trace with hash 200900853, now seen corresponding path program 2 times [2019-10-13 21:14:31,974 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:31,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533272102] [2019-10-13 21:14:31,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:31,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:31,974 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 21:14:32,405 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533272102] [2019-10-13 21:14:32,405 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:32,405 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:14:32,405 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129255272] [2019-10-13 21:14:32,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:14:32,406 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:32,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:14:32,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:14:32,407 INFO L87 Difference]: Start difference. First operand 6274 states and 10337 transitions. Second operand 24 states. [2019-10-13 21:14:40,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:40,280 INFO L93 Difference]: Finished difference Result 13422 states and 21865 transitions. [2019-10-13 21:14:40,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2019-10-13 21:14:40,281 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 175 [2019-10-13 21:14:40,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:40,355 INFO L225 Difference]: With dead ends: 13422 [2019-10-13 21:14:40,355 INFO L226 Difference]: Without dead ends: 13205 [2019-10-13 21:14:40,365 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1665 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=769, Invalid=5711, Unknown=0, NotChecked=0, Total=6480 [2019-10-13 21:14:40,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13205 states. [2019-10-13 21:14:40,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13205 to 6274. [2019-10-13 21:14:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6274 states. [2019-10-13 21:14:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 10337 transitions. [2019-10-13 21:14:40,919 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 10337 transitions. Word has length 175 [2019-10-13 21:14:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:40,920 INFO L462 AbstractCegarLoop]: Abstraction has 6274 states and 10337 transitions. [2019-10-13 21:14:40,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 21:14:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 10337 transitions. [2019-10-13 21:14:40,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:40,947 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:40,948 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:40,948 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:40,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:40,948 INFO L82 PathProgramCache]: Analyzing trace with hash 824831686, now seen corresponding path program 1 times [2019-10-13 21:14:40,948 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:40,949 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334655786] [2019-10-13 21:14:40,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:40,949 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:40,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:41,128 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:14:41,128 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334655786] [2019-10-13 21:14:41,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:41,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 21:14:41,129 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245403666] [2019-10-13 21:14:41,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:14:41,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:41,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:14:41,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:14:41,131 INFO L87 Difference]: Start difference. First operand 6274 states and 10337 transitions. Second operand 12 states. [2019-10-13 21:14:41,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:41,456 INFO L93 Difference]: Finished difference Result 7030 states and 11400 transitions. [2019-10-13 21:14:41,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:14:41,456 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2019-10-13 21:14:41,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:41,480 INFO L225 Difference]: With dead ends: 7030 [2019-10-13 21:14:41,481 INFO L226 Difference]: Without dead ends: 6364 [2019-10-13 21:14:41,487 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:14:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2019-10-13 21:14:41,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 6364. [2019-10-13 21:14:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6364 states. [2019-10-13 21:14:41,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6364 states to 6364 states and 10476 transitions. [2019-10-13 21:14:41,764 INFO L78 Accepts]: Start accepts. Automaton has 6364 states and 10476 transitions. Word has length 175 [2019-10-13 21:14:41,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:41,764 INFO L462 AbstractCegarLoop]: Abstraction has 6364 states and 10476 transitions. [2019-10-13 21:14:41,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:14:41,764 INFO L276 IsEmpty]: Start isEmpty. Operand 6364 states and 10476 transitions. [2019-10-13 21:14:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:41,791 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:41,791 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:41,791 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:41,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:41,792 INFO L82 PathProgramCache]: Analyzing trace with hash -184230632, now seen corresponding path program 1 times [2019-10-13 21:14:41,792 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:41,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916267543] [2019-10-13 21:14:41,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:41,793 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:41,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat