/usr/bin/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-fb55353 [2019-11-07 00:47:55,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:47:55,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:47:55,579 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:47:55,579 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:47:55,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:47:55,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:47:55,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:47:55,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:47:55,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:47:55,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:47:55,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:47:55,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:47:55,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:47:55,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:47:55,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:47:55,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:47:55,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:47:55,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:47:55,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:47:55,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:47:55,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:47:55,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:47:55,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:47:55,620 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:47:55,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:47:55,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:47:55,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:47:55,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:47:55,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:47:55,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:47:55,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:47:55,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:47:55,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:47:55,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:47:55,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:47:55,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:47:55,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:47:55,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:47:55,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:47:55,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:47:55,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:47:55,655 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:47:55,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:47:55,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:47:55,658 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:47:55,658 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:47:55,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:47:55,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:47:55,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:47:55,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:47:55,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:47:55,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:47:55,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:47:55,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:47:55,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:47:55,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:47:55,662 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:47:55,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:47:55,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:47:55,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:47:55,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:47:55,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:47:55,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:55,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:47:55,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:47:55,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:47:55,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:47:55,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:47:55,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:47:55,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:47:55,934 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:47:55,956 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:47:55,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:47:55,961 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:47:55,961 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:47:55,962 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-11-07 00:47:56,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625698e3f/a3e0925efc7345f2aec4d599cec81a79/FLAGbdb2961a0 [2019-11-07 00:47:56,674 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:47:56,675 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2019-11-07 00:47:56,714 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625698e3f/a3e0925efc7345f2aec4d599cec81a79/FLAGbdb2961a0 [2019-11-07 00:47:56,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/625698e3f/a3e0925efc7345f2aec4d599cec81a79 [2019-11-07 00:47:56,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:47:56,882 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:47:56,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:56,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:47:56,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:47:56,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:56" (1/1) ... [2019-11-07 00:47:56,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9d1899d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:56, skipping insertion in model container [2019-11-07 00:47:56,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:56" (1/1) ... [2019-11-07 00:47:56,905 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:47:56,996 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:47:57,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:57,845 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:47:57,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:58,034 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:47:58,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58 WrapperNode [2019-11-07 00:47:58,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:58,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:47:58,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:47:58,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:47:58,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (1/1) ... [2019-11-07 00:47:58,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:47:58,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:47:58,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:47:58,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:47:58,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (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 [2019-11-07 00:47:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:47:58,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:47:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:47:58,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:47:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:47:58,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:47:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:47:58,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:47:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:47:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:47:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:47:58,295 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:47:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:47:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:47:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:47:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:47:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:47:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:47:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:47:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:47:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:47:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:47:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:47:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:47:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:47:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:47:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:47:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 00:47:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:47:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:47:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:47:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:47:58,305 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:47:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:47:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:47:58,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:47:58,307 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:47:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:47:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:47:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:47:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:47:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:47:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:47:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:47:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:58,309 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:47:58,310 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:47:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:47:58,311 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:47:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:47:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:47:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:47:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:47:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:47:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:47:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:47:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:47:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:47:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:47:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:47:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:47:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:47:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:47:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:47:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:47:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:47:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:47:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:47:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:47:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:47:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:47:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:47:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:47:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:47:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:47:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:47:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:47:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:47:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:47:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:47:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:47:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 00:47:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:47:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:47:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:47:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:47:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:47:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:47:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:47:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:47:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:47:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:47:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:47:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:47:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:47:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:47:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:47:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:47:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:47:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:47:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:47:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:47:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:47:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:47:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:47:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:47:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:47:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:47:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:47:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:47:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:47:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:47:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:47:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:47:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:47:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:47:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:47:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:47:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:47:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:47:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:47:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:47:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:47:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:47:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:47:58,347 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:47:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:47:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:47:58,348 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:47:58,349 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:47:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:47:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:47:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:47:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:47:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:47:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:47:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:47:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:48:00,595 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:48:00,595 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:48:00,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:48:00 BoogieIcfgContainer [2019-11-07 00:48:00,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:48:00,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:48:00,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:48:00,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:48:00,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:47:56" (1/3) ... [2019-11-07 00:48:00,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2dcbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:48:00, skipping insertion in model container [2019-11-07 00:48:00,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:58" (2/3) ... [2019-11-07 00:48:00,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b2dcbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:48:00, skipping insertion in model container [2019-11-07 00:48:00,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:48:00" (3/3) ... [2019-11-07 00:48:00,606 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.c [2019-11-07 00:48:00,617 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:48:00,629 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:48:00,640 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:48:00,683 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:48:00,683 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:48:00,683 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:48:00,683 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:48:00,684 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:48:00,684 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:48:00,684 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:48:00,684 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:48:00,725 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states. [2019-11-07 00:48:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-11-07 00:48:00,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:00,753 INFO L410 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] [2019-11-07 00:48:00,755 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash -165489832, now seen corresponding path program 1 times [2019-11-07 00:48:00,773 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:00,774 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573370837] [2019-11-07 00:48:00,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:01,451 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573370837] [2019-11-07 00:48:01,452 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:01,452 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:48:01,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156521364] [2019-11-07 00:48:01,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:48:01,462 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:01,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:48:01,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:48:01,480 INFO L87 Difference]: Start difference. First operand 559 states. Second operand 2 states. [2019-11-07 00:48:01,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:01,577 INFO L93 Difference]: Finished difference Result 756 states and 1036 transitions. [2019-11-07 00:48:01,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:48:01,578 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-11-07 00:48:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:01,602 INFO L225 Difference]: With dead ends: 756 [2019-11-07 00:48:01,602 INFO L226 Difference]: Without dead ends: 506 [2019-11-07 00:48:01,614 INFO L630 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 [2019-11-07 00:48:01,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-11-07 00:48:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2019-11-07 00:48:01,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2019-11-07 00:48:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 697 transitions. [2019-11-07 00:48:01,723 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 697 transitions. Word has length 154 [2019-11-07 00:48:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:01,725 INFO L462 AbstractCegarLoop]: Abstraction has 506 states and 697 transitions. [2019-11-07 00:48:01,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:48:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 697 transitions. [2019-11-07 00:48:01,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 00:48:01,739 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:01,740 INFO L410 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] [2019-11-07 00:48:01,740 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:01,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:01,741 INFO L82 PathProgramCache]: Analyzing trace with hash 251195075, now seen corresponding path program 1 times [2019-11-07 00:48:01,741 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:01,741 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693812908] [2019-11-07 00:48:01,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:02,019 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693812908] [2019-11-07 00:48:02,019 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:02,019 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:02,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438343208] [2019-11-07 00:48:02,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:02,037 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:02,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:02,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:02,038 INFO L87 Difference]: Start difference. First operand 506 states and 697 transitions. Second operand 3 states. [2019-11-07 00:48:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:02,095 INFO L93 Difference]: Finished difference Result 739 states and 1002 transitions. [2019-11-07 00:48:02,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:02,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-11-07 00:48:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:02,102 INFO L225 Difference]: With dead ends: 739 [2019-11-07 00:48:02,103 INFO L226 Difference]: Without dead ends: 509 [2019-11-07 00:48:02,105 INFO L630 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 [2019-11-07 00:48:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-11-07 00:48:02,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 508. [2019-11-07 00:48:02,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-11-07 00:48:02,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 699 transitions. [2019-11-07 00:48:02,148 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 699 transitions. Word has length 155 [2019-11-07 00:48:02,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:02,149 INFO L462 AbstractCegarLoop]: Abstraction has 508 states and 699 transitions. [2019-11-07 00:48:02,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:02,150 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 699 transitions. [2019-11-07 00:48:02,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-11-07 00:48:02,153 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:02,153 INFO L410 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] [2019-11-07 00:48:02,153 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:02,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1211628493, now seen corresponding path program 1 times [2019-11-07 00:48:02,154 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:02,154 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873168637] [2019-11-07 00:48:02,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:02,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:02,403 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873168637] [2019-11-07 00:48:02,403 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:02,403 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:02,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765531263] [2019-11-07 00:48:02,407 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:02,409 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:02,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:02,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:02,410 INFO L87 Difference]: Start difference. First operand 508 states and 699 transitions. Second operand 3 states. [2019-11-07 00:48:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:02,462 INFO L93 Difference]: Finished difference Result 994 states and 1399 transitions. [2019-11-07 00:48:02,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:02,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-11-07 00:48:02,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:02,470 INFO L225 Difference]: With dead ends: 994 [2019-11-07 00:48:02,470 INFO L226 Difference]: Without dead ends: 551 [2019-11-07 00:48:02,473 INFO L630 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 [2019-11-07 00:48:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-11-07 00:48:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-11-07 00:48:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-11-07 00:48:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 771 transitions. [2019-11-07 00:48:02,524 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 771 transitions. Word has length 165 [2019-11-07 00:48:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:02,524 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 771 transitions. [2019-11-07 00:48:02,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 771 transitions. [2019-11-07 00:48:02,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-11-07 00:48:02,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:02,529 INFO L410 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] [2019-11-07 00:48:02,529 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:02,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:02,529 INFO L82 PathProgramCache]: Analyzing trace with hash 964514250, now seen corresponding path program 1 times [2019-11-07 00:48:02,530 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:02,530 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335460682] [2019-11-07 00:48:02,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:02,684 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335460682] [2019-11-07 00:48:02,684 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:02,684 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:02,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231349273] [2019-11-07 00:48:02,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:02,685 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:02,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:02,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:02,686 INFO L87 Difference]: Start difference. First operand 550 states and 771 transitions. Second operand 3 states. [2019-11-07 00:48:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:02,734 INFO L93 Difference]: Finished difference Result 1117 states and 1610 transitions. [2019-11-07 00:48:02,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:02,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2019-11-07 00:48:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:02,743 INFO L225 Difference]: With dead ends: 1117 [2019-11-07 00:48:02,744 INFO L226 Difference]: Without dead ends: 632 [2019-11-07 00:48:02,746 INFO L630 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 [2019-11-07 00:48:02,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-11-07 00:48:02,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 631. [2019-11-07 00:48:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-11-07 00:48:02,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 909 transitions. [2019-11-07 00:48:02,784 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 909 transitions. Word has length 166 [2019-11-07 00:48:02,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:02,786 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 909 transitions. [2019-11-07 00:48:02,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:02,786 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 909 transitions. [2019-11-07 00:48:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-11-07 00:48:02,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:02,792 INFO L410 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] [2019-11-07 00:48:02,792 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:02,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:02,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1255605427, now seen corresponding path program 1 times [2019-11-07 00:48:02,793 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:02,793 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094083986] [2019-11-07 00:48:02,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:03,153 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094083986] [2019-11-07 00:48:03,154 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:03,154 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:03,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116603721] [2019-11-07 00:48:03,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:03,156 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:03,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:03,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:03,157 INFO L87 Difference]: Start difference. First operand 631 states and 909 transitions. Second operand 3 states. [2019-11-07 00:48:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:03,210 INFO L93 Difference]: Finished difference Result 1354 states and 2014 transitions. [2019-11-07 00:48:03,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:03,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-11-07 00:48:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:03,219 INFO L225 Difference]: With dead ends: 1354 [2019-11-07 00:48:03,219 INFO L226 Difference]: Without dead ends: 788 [2019-11-07 00:48:03,223 INFO L630 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 [2019-11-07 00:48:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-11-07 00:48:03,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 787. [2019-11-07 00:48:03,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-11-07 00:48:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1173 transitions. [2019-11-07 00:48:03,285 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1173 transitions. Word has length 167 [2019-11-07 00:48:03,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:03,286 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1173 transitions. [2019-11-07 00:48:03,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1173 transitions. [2019-11-07 00:48:03,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-11-07 00:48:03,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:03,294 INFO L410 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] [2019-11-07 00:48:03,294 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:03,295 INFO L82 PathProgramCache]: Analyzing trace with hash 631123274, now seen corresponding path program 1 times [2019-11-07 00:48:03,295 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:03,296 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457624207] [2019-11-07 00:48:03,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:03,460 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:03,460 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457624207] [2019-11-07 00:48:03,461 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:03,461 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:03,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784965906] [2019-11-07 00:48:03,462 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:03,462 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:03,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:03,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:03,463 INFO L87 Difference]: Start difference. First operand 787 states and 1173 transitions. Second operand 3 states. [2019-11-07 00:48:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:03,514 INFO L93 Difference]: Finished difference Result 1810 states and 2786 transitions. [2019-11-07 00:48:03,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:03,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-11-07 00:48:03,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:03,522 INFO L225 Difference]: With dead ends: 1810 [2019-11-07 00:48:03,522 INFO L226 Difference]: Without dead ends: 1088 [2019-11-07 00:48:03,525 INFO L630 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 [2019-11-07 00:48:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2019-11-07 00:48:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1087. [2019-11-07 00:48:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2019-11-07 00:48:03,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1677 transitions. [2019-11-07 00:48:03,578 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1677 transitions. Word has length 168 [2019-11-07 00:48:03,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:03,579 INFO L462 AbstractCegarLoop]: Abstraction has 1087 states and 1677 transitions. [2019-11-07 00:48:03,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1677 transitions. [2019-11-07 00:48:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-11-07 00:48:03,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:03,586 INFO L410 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] [2019-11-07 00:48:03,586 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:03,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:03,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1431519593, now seen corresponding path program 1 times [2019-11-07 00:48:03,587 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:03,587 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297913289] [2019-11-07 00:48:03,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:04,737 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-11-07 00:48:04,738 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297913289] [2019-11-07 00:48:04,738 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:04,738 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-11-07 00:48:04,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897538842] [2019-11-07 00:48:04,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-07 00:48:04,739 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:04,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-07 00:48:04,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-11-07 00:48:04,741 INFO L87 Difference]: Start difference. First operand 1087 states and 1677 transitions. Second operand 35 states. [2019-11-07 00:48:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:11,233 INFO L93 Difference]: Finished difference Result 3203 states and 5062 transitions. [2019-11-07 00:48:11,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-11-07 00:48:11,234 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 171 [2019-11-07 00:48:11,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:11,250 INFO L225 Difference]: With dead ends: 3203 [2019-11-07 00:48:11,250 INFO L226 Difference]: Without dead ends: 2148 [2019-11-07 00:48:11,257 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-11-07 00:48:11,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2019-11-07 00:48:11,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1893. [2019-11-07 00:48:11,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1893 states. [2019-11-07 00:48:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1893 states to 1893 states and 3064 transitions. [2019-11-07 00:48:11,384 INFO L78 Accepts]: Start accepts. Automaton has 1893 states and 3064 transitions. Word has length 171 [2019-11-07 00:48:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:11,385 INFO L462 AbstractCegarLoop]: Abstraction has 1893 states and 3064 transitions. [2019-11-07 00:48:11,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-07 00:48:11,385 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 3064 transitions. [2019-11-07 00:48:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-11-07 00:48:11,395 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:11,396 INFO L410 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] [2019-11-07 00:48:11,396 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:11,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1767965097, now seen corresponding path program 1 times [2019-11-07 00:48:11,397 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:11,397 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861426385] [2019-11-07 00:48:11,397 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:48:11,541 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861426385] [2019-11-07 00:48:11,541 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:11,542 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:48:11,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252752209] [2019-11-07 00:48:11,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:48:11,543 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:11,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:48:11,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:48:11,543 INFO L87 Difference]: Start difference. First operand 1893 states and 3064 transitions. Second operand 3 states. [2019-11-07 00:48:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:11,685 INFO L93 Difference]: Finished difference Result 4860 states and 8038 transitions. [2019-11-07 00:48:11,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:48:11,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-11-07 00:48:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:11,710 INFO L225 Difference]: With dead ends: 4860 [2019-11-07 00:48:11,711 INFO L226 Difference]: Without dead ends: 3046 [2019-11-07 00:48:11,722 INFO L630 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 [2019-11-07 00:48:11,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2019-11-07 00:48:11,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 3045. [2019-11-07 00:48:11,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2019-11-07 00:48:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 5032 transitions. [2019-11-07 00:48:11,980 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 5032 transitions. Word has length 170 [2019-11-07 00:48:11,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:11,982 INFO L462 AbstractCegarLoop]: Abstraction has 3045 states and 5032 transitions. [2019-11-07 00:48:11,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:48:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 5032 transitions. [2019-11-07 00:48:11,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-11-07 00:48:11,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:11,998 INFO L410 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] [2019-11-07 00:48:11,999 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:11,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:11,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1753128692, now seen corresponding path program 1 times [2019-11-07 00:48:12,000 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:12,000 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553325025] [2019-11-07 00:48:12,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:12,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 00:48:12,694 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553325025] [2019-11-07 00:48:12,694 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539743896] [2019-11-07 00:48:12,694 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 [2019-11-07 00:48:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:13,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 2683 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:48:13,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:48:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-11-07 00:48:13,629 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:48:13,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:48:14,084 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:48:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:48:14,155 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:48:14,156 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-11-07 00:48:14,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15119034] [2019-11-07 00:48:14,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:48:14,158 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:14,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:48:14,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-11-07 00:48:14,159 INFO L87 Difference]: Start difference. First operand 3045 states and 5032 transitions. Second operand 7 states. [2019-11-07 00:48:15,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:15,660 INFO L93 Difference]: Finished difference Result 6043 states and 10045 transitions. [2019-11-07 00:48:15,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:48:15,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-11-07 00:48:15,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:15,687 INFO L225 Difference]: With dead ends: 6043 [2019-11-07 00:48:15,687 INFO L226 Difference]: Without dead ends: 3049 [2019-11-07 00:48:15,709 INFO L630 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 [2019-11-07 00:48:15,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2019-11-07 00:48:15,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2019-11-07 00:48:15,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2019-11-07 00:48:15,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 5037 transitions. [2019-11-07 00:48:15,915 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 5037 transitions. Word has length 173 [2019-11-07 00:48:15,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:15,917 INFO L462 AbstractCegarLoop]: Abstraction has 3049 states and 5037 transitions. [2019-11-07 00:48:15,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:48:15,917 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 5037 transitions. [2019-11-07 00:48:15,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-11-07 00:48:15,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:15,934 INFO L410 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] [2019-11-07 00:48:16,151 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:48:16,153 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:16,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:16,153 INFO L82 PathProgramCache]: Analyzing trace with hash 109986769, now seen corresponding path program 1 times [2019-11-07 00:48:16,153 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:16,155 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204415536] [2019-11-07 00:48:16,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:48:17,014 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204415536] [2019-11-07 00:48:17,015 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:17,015 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 00:48:17,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567867396] [2019-11-07 00:48:17,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 00:48:17,024 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:17,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 00:48:17,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-11-07 00:48:17,025 INFO L87 Difference]: Start difference. First operand 3049 states and 5037 transitions. Second operand 26 states. [2019-11-07 00:48:26,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:48:26,257 INFO L93 Difference]: Finished difference Result 6996 states and 11291 transitions. [2019-11-07 00:48:26,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-11-07 00:48:26,258 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-11-07 00:48:26,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:48:26,303 INFO L225 Difference]: With dead ends: 6996 [2019-11-07 00:48:26,303 INFO L226 Difference]: Without dead ends: 6775 [2019-11-07 00:48:26,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-11-07 00:48:26,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6775 states. [2019-11-07 00:48:26,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6775 to 6274. [2019-11-07 00:48:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6274 states. [2019-11-07 00:48:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6274 states to 6274 states and 10337 transitions. [2019-11-07 00:48:26,678 INFO L78 Accepts]: Start accepts. Automaton has 6274 states and 10337 transitions. Word has length 174 [2019-11-07 00:48:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:48:26,679 INFO L462 AbstractCegarLoop]: Abstraction has 6274 states and 10337 transitions. [2019-11-07 00:48:26,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 00:48:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6274 states and 10337 transitions. [2019-11-07 00:48:26,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-11-07 00:48:26,716 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:48:26,716 INFO L410 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] [2019-11-07 00:48:26,717 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:48:26,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:48:26,717 INFO L82 PathProgramCache]: Analyzing trace with hash 200900853, now seen corresponding path program 2 times [2019-11-07 00:48:26,717 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:48:26,718 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498122858] [2019-11-07 00:48:26,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:48:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:48:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-07 00:48:27,362 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498122858] [2019-11-07 00:48:27,362 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:48:27,363 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-11-07 00:48:27,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121153284] [2019-11-07 00:48:27,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 00:48:27,364 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:48:27,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 00:48:27,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-11-07 00:48:27,365 INFO L87 Difference]: Start difference. First operand 6274 states and 10337 transitions. Second operand 24 states.