java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:23,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:23,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:23,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:23,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:23,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:23,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:23,353 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:23,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:23,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:23,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:23,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:23,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:23,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:23,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:23,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:23,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:23,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:23,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:23,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:23,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:23,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:23,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:23,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:23,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:23,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:23,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:23,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:23,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:23,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:23,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:23,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:23,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:23,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:23,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:23,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:23,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:23,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:23,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:23,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:23,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:23,405 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:23,439 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:23,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:23,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:23,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:23,446 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:23,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:23,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:23,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:23,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:23,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:23,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:23,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:23,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:23,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:23,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:23,450 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:23,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:23,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:23,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:23,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:23,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:23,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:23,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:23,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:23,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:23,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:23,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:23,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:23,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:23,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:23,778 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:23,781 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:23,783 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:23,783 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:23,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-13 21:17:23,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/667309faf/5af26049e5834d8ab52072244f875ad1/FLAGc1cf1e705 [2019-10-13 21:17:24,486 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:24,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-13 21:17:24,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/667309faf/5af26049e5834d8ab52072244f875ad1/FLAGc1cf1e705 [2019-10-13 21:17:24,674 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/667309faf/5af26049e5834d8ab52072244f875ad1 [2019-10-13 21:17:24,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:24,687 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:24,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:24,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:24,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:24,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:24" (1/1) ... [2019-10-13 21:17:24,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfb33bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:24, skipping insertion in model container [2019-10-13 21:17:24,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:24" (1/1) ... [2019-10-13 21:17:24,707 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:24,782 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:25,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:25,616 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:25,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:25,831 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:25,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25 WrapperNode [2019-10-13 21:17:25,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:25,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:25,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:25,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:25,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:25,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... [2019-10-13 21:17:26,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:26,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:26,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:26,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:26,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:26,096 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:26,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:26,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:26,099 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:26,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:26,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:26,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:26,105 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:26,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:26,108 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:26,109 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:26,110 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:26,111 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:26,112 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:26,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:26,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:26,113 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:26,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:26,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:26,115 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:26,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:26,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:26,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:26,116 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:26,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:26,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:26,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:26,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:26,121 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:26,122 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:26,123 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:26,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:26,125 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:26,125 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:26,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:26,165 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:26,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:28,523 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:28,524 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:28,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:28 BoogieIcfgContainer [2019-10-13 21:17:28,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:28,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:28,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:28,532 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:28,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:24" (1/3) ... [2019-10-13 21:17:28,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462aee3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:28, skipping insertion in model container [2019-10-13 21:17:28,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:25" (2/3) ... [2019-10-13 21:17:28,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@462aee3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:28, skipping insertion in model container [2019-10-13 21:17:28,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:28" (3/3) ... [2019-10-13 21:17:28,541 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2019-10-13 21:17:28,552 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:28,564 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:28,576 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:28,627 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:28,627 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:28,627 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:28,631 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:28,631 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:28,632 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:28,632 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:28,632 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:28,678 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-13 21:17:28,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:17:28,719 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:28,722 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:28,725 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:28,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:28,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1571971609, now seen corresponding path program 1 times [2019-10-13 21:17:28,745 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:28,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706253217] [2019-10-13 21:17:28,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:28,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:28,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:29,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706253217] [2019-10-13 21:17:29,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:29,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:29,509 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768173160] [2019-10-13 21:17:29,516 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:29,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:29,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:29,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:29,537 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-13 21:17:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:29,649 INFO L93 Difference]: Finished difference Result 927 states and 1217 transitions. [2019-10-13 21:17:29,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:29,651 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-13 21:17:29,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:29,678 INFO L225 Difference]: With dead ends: 927 [2019-10-13 21:17:29,679 INFO L226 Difference]: Without dead ends: 575 [2019-10-13 21:17:29,696 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:29,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-13 21:17:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2019-10-13 21:17:29,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2019-10-13 21:17:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 759 transitions. [2019-10-13 21:17:29,808 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 759 transitions. Word has length 189 [2019-10-13 21:17:29,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:29,815 INFO L462 AbstractCegarLoop]: Abstraction has 575 states and 759 transitions. [2019-10-13 21:17:29,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:29,815 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 759 transitions. [2019-10-13 21:17:29,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:17:29,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:29,824 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:29,827 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:29,827 INFO L82 PathProgramCache]: Analyzing trace with hash -84280545, now seen corresponding path program 1 times [2019-10-13 21:17:29,827 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:29,828 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531992231] [2019-10-13 21:17:29,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,828 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:30,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531992231] [2019-10-13 21:17:30,181 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,181 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:30,181 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542354954] [2019-10-13 21:17:30,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:30,192 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:30,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:30,193 INFO L87 Difference]: Start difference. First operand 575 states and 759 transitions. Second operand 3 states. [2019-10-13 21:17:30,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:30,305 INFO L93 Difference]: Finished difference Result 910 states and 1184 transitions. [2019-10-13 21:17:30,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:30,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:17:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:30,316 INFO L225 Difference]: With dead ends: 910 [2019-10-13 21:17:30,316 INFO L226 Difference]: Without dead ends: 578 [2019-10-13 21:17:30,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-13 21:17:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 577. [2019-10-13 21:17:30,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-13 21:17:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 761 transitions. [2019-10-13 21:17:30,381 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 761 transitions. Word has length 190 [2019-10-13 21:17:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:30,382 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 761 transitions. [2019-10-13 21:17:30,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 761 transitions. [2019-10-13 21:17:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:17:30,388 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:30,389 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:30,389 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:30,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:30,389 INFO L82 PathProgramCache]: Analyzing trace with hash 364513166, now seen corresponding path program 1 times [2019-10-13 21:17:30,390 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:30,390 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324739999] [2019-10-13 21:17:30,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,390 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:30,648 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324739999] [2019-10-13 21:17:30,648 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:30,649 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:30,649 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572707129] [2019-10-13 21:17:30,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:30,655 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:30,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:30,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:30,656 INFO L87 Difference]: Start difference. First operand 577 states and 761 transitions. Second operand 3 states. [2019-10-13 21:17:30,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:30,711 INFO L93 Difference]: Finished difference Result 1132 states and 1523 transitions. [2019-10-13 21:17:30,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:30,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-13 21:17:30,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:30,725 INFO L225 Difference]: With dead ends: 1132 [2019-10-13 21:17:30,725 INFO L226 Difference]: Without dead ends: 620 [2019-10-13 21:17:30,730 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:30,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-13 21:17:30,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2019-10-13 21:17:30,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-13 21:17:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 833 transitions. [2019-10-13 21:17:30,784 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 833 transitions. Word has length 202 [2019-10-13 21:17:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:30,785 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 833 transitions. [2019-10-13 21:17:30,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 833 transitions. [2019-10-13 21:17:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:30,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:30,799 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:30,799 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:30,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:30,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1378845606, now seen corresponding path program 1 times [2019-10-13 21:17:30,801 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:30,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492127186] [2019-10-13 21:17:30,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:30,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,134 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:31,135 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492127186] [2019-10-13 21:17:31,135 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,135 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:31,135 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470762964] [2019-10-13 21:17:31,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:31,136 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:31,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:31,137 INFO L87 Difference]: Start difference. First operand 619 states and 833 transitions. Second operand 3 states. [2019-10-13 21:17:31,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:31,184 INFO L93 Difference]: Finished difference Result 1255 states and 1734 transitions. [2019-10-13 21:17:31,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:31,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-13 21:17:31,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:31,192 INFO L225 Difference]: With dead ends: 1255 [2019-10-13 21:17:31,192 INFO L226 Difference]: Without dead ends: 701 [2019-10-13 21:17:31,195 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-13 21:17:31,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-13 21:17:31,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-13 21:17:31,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 971 transitions. [2019-10-13 21:17:31,233 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 971 transitions. Word has length 203 [2019-10-13 21:17:31,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:31,233 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 971 transitions. [2019-10-13 21:17:31,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:31,234 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 971 transitions. [2019-10-13 21:17:31,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:17:31,238 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:31,238 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:31,239 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:31,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:31,239 INFO L82 PathProgramCache]: Analyzing trace with hash 402895277, now seen corresponding path program 1 times [2019-10-13 21:17:31,239 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:31,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934589769] [2019-10-13 21:17:31,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,240 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:31,636 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934589769] [2019-10-13 21:17:31,637 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,637 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:31,637 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000196277] [2019-10-13 21:17:31,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:31,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:31,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:31,640 INFO L87 Difference]: Start difference. First operand 700 states and 971 transitions. Second operand 11 states. [2019-10-13 21:17:38,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:38,401 INFO L93 Difference]: Finished difference Result 3376 states and 4520 transitions. [2019-10-13 21:17:38,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-13 21:17:38,402 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-13 21:17:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:38,419 INFO L225 Difference]: With dead ends: 3376 [2019-10-13 21:17:38,419 INFO L226 Difference]: Without dead ends: 2603 [2019-10-13 21:17:38,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-13 21:17:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2019-10-13 21:17:38,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2588. [2019-10-13 21:17:38,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2019-10-13 21:17:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3416 transitions. [2019-10-13 21:17:38,565 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3416 transitions. Word has length 206 [2019-10-13 21:17:38,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:38,567 INFO L462 AbstractCegarLoop]: Abstraction has 2588 states and 3416 transitions. [2019-10-13 21:17:38,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:38,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3416 transitions. [2019-10-13 21:17:38,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:38,572 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:38,572 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:38,572 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:38,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:38,573 INFO L82 PathProgramCache]: Analyzing trace with hash 932962740, now seen corresponding path program 1 times [2019-10-13 21:17:38,573 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:38,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599681111] [2019-10-13 21:17:38,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:38,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:38,980 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:38,981 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599681111] [2019-10-13 21:17:38,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:38,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:38,982 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030967837] [2019-10-13 21:17:38,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:38,983 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:38,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:38,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:38,983 INFO L87 Difference]: Start difference. First operand 2588 states and 3416 transitions. Second operand 18 states. [2019-10-13 21:17:39,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:39,472 INFO L93 Difference]: Finished difference Result 4563 states and 5993 transitions. [2019-10-13 21:17:39,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:39,473 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-10-13 21:17:39,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:39,485 INFO L225 Difference]: With dead ends: 4563 [2019-10-13 21:17:39,485 INFO L226 Difference]: Without dead ends: 2087 [2019-10-13 21:17:39,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:39,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2019-10-13 21:17:39,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2047. [2019-10-13 21:17:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2047 states. [2019-10-13 21:17:39,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2703 transitions. [2019-10-13 21:17:39,581 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2703 transitions. Word has length 207 [2019-10-13 21:17:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:39,582 INFO L462 AbstractCegarLoop]: Abstraction has 2047 states and 2703 transitions. [2019-10-13 21:17:39,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:39,582 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2703 transitions. [2019-10-13 21:17:39,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:17:39,586 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:39,587 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:39,587 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:39,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:39,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1982112620, now seen corresponding path program 1 times [2019-10-13 21:17:39,588 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:39,588 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481157027] [2019-10-13 21:17:39,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,588 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:39,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:39,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481157027] [2019-10-13 21:17:39,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:39,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:39,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133728633] [2019-10-13 21:17:39,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:39,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:39,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:39,796 INFO L87 Difference]: Start difference. First operand 2047 states and 2703 transitions. Second operand 6 states. [2019-10-13 21:17:40,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:40,622 INFO L93 Difference]: Finished difference Result 5696 states and 7493 transitions. [2019-10-13 21:17:40,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:40,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-13 21:17:40,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:40,646 INFO L225 Difference]: With dead ends: 5696 [2019-10-13 21:17:40,646 INFO L226 Difference]: Without dead ends: 4085 [2019-10-13 21:17:40,652 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:17:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2019-10-13 21:17:40,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4014. [2019-10-13 21:17:40,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4014 states. [2019-10-13 21:17:40,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 5337 transitions. [2019-10-13 21:17:40,829 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 5337 transitions. Word has length 216 [2019-10-13 21:17:40,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:40,832 INFO L462 AbstractCegarLoop]: Abstraction has 4014 states and 5337 transitions. [2019-10-13 21:17:40,832 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:40,832 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 5337 transitions. [2019-10-13 21:17:40,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:40,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:40,840 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:40,841 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:40,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:40,841 INFO L82 PathProgramCache]: Analyzing trace with hash -824209956, now seen corresponding path program 1 times [2019-10-13 21:17:40,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:40,842 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595901527] [2019-10-13 21:17:40,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:40,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:41,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595901527] [2019-10-13 21:17:41,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:41,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:41,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36044151] [2019-10-13 21:17:41,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:41,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:41,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:41,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:41,179 INFO L87 Difference]: Start difference. First operand 4014 states and 5337 transitions. Second operand 11 states. [2019-10-13 21:17:41,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:41,694 INFO L93 Difference]: Finished difference Result 7259 states and 9498 transitions. [2019-10-13 21:17:41,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:41,695 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-10-13 21:17:41,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:41,720 INFO L225 Difference]: With dead ends: 7259 [2019-10-13 21:17:41,720 INFO L226 Difference]: Without dead ends: 4032 [2019-10-13 21:17:41,732 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2019-10-13 21:17:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4002. [2019-10-13 21:17:41,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4002 states. [2019-10-13 21:17:41,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 5311 transitions. [2019-10-13 21:17:41,952 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 5311 transitions. Word has length 217 [2019-10-13 21:17:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:41,953 INFO L462 AbstractCegarLoop]: Abstraction has 4002 states and 5311 transitions. [2019-10-13 21:17:41,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 5311 transitions. [2019-10-13 21:17:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:41,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:41,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:41,961 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:41,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:41,961 INFO L82 PathProgramCache]: Analyzing trace with hash -237433837, now seen corresponding path program 1 times [2019-10-13 21:17:41,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:41,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154931293] [2019-10-13 21:17:41,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:41,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:41,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:42,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154931293] [2019-10-13 21:17:42,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:42,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:42,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560321853] [2019-10-13 21:17:42,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:42,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:42,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:42,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:42,169 INFO L87 Difference]: Start difference. First operand 4002 states and 5311 transitions. Second operand 5 states. [2019-10-13 21:17:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:43,945 INFO L93 Difference]: Finished difference Result 13897 states and 18362 transitions. [2019-10-13 21:17:43,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:43,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-13 21:17:43,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:44,007 INFO L225 Difference]: With dead ends: 13897 [2019-10-13 21:17:44,008 INFO L226 Difference]: Without dead ends: 9442 [2019-10-13 21:17:44,028 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2019-10-13 21:17:44,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9162. [2019-10-13 21:17:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9162 states. [2019-10-13 21:17:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9162 states to 9162 states and 12207 transitions. [2019-10-13 21:17:44,507 INFO L78 Accepts]: Start accepts. Automaton has 9162 states and 12207 transitions. Word has length 217 [2019-10-13 21:17:44,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:44,507 INFO L462 AbstractCegarLoop]: Abstraction has 9162 states and 12207 transitions. [2019-10-13 21:17:44,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:44,507 INFO L276 IsEmpty]: Start isEmpty. Operand 9162 states and 12207 transitions. [2019-10-13 21:17:44,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-13 21:17:44,524 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:44,525 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:44,525 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:44,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash -111913891, now seen corresponding path program 1 times [2019-10-13 21:17:44,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:44,526 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132297686] [2019-10-13 21:17:44,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:44,526 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:44,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:44,708 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:44,708 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132297686] [2019-10-13 21:17:44,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:44,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:44,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845946815] [2019-10-13 21:17:44,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:44,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:44,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:44,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:44,711 INFO L87 Difference]: Start difference. First operand 9162 states and 12207 transitions. Second operand 3 states. [2019-10-13 21:17:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:44,932 INFO L93 Difference]: Finished difference Result 18887 states and 25507 transitions. [2019-10-13 21:17:44,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:44,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-13 21:17:44,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:44,987 INFO L225 Difference]: With dead ends: 18887 [2019-10-13 21:17:44,987 INFO L226 Difference]: Without dead ends: 9790 [2019-10-13 21:17:45,018 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2019-10-13 21:17:45,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 9786. [2019-10-13 21:17:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2019-10-13 21:17:45,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 13353 transitions. [2019-10-13 21:17:45,978 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 13353 transitions. Word has length 238 [2019-10-13 21:17:45,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:45,979 INFO L462 AbstractCegarLoop]: Abstraction has 9786 states and 13353 transitions. [2019-10-13 21:17:45,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 13353 transitions. [2019-10-13 21:17:45,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-13 21:17:45,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:45,999 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:46,000 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:46,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:46,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1192037515, now seen corresponding path program 1 times [2019-10-13 21:17:46,001 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:46,001 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189617700] [2019-10-13 21:17:46,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,002 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:46,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:46,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189617700] [2019-10-13 21:17:46,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:46,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:46,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463298052] [2019-10-13 21:17:46,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:46,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:46,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:46,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:46,271 INFO L87 Difference]: Start difference. First operand 9786 states and 13353 transitions. Second operand 8 states. [2019-10-13 21:17:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:51,523 INFO L93 Difference]: Finished difference Result 29724 states and 42049 transitions. [2019-10-13 21:17:51,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:51,524 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-13 21:17:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:51,627 INFO L225 Difference]: With dead ends: 29724 [2019-10-13 21:17:51,628 INFO L226 Difference]: Without dead ends: 20003 [2019-10-13 21:17:51,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20003 states. [2019-10-13 21:17:52,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20003 to 12038. [2019-10-13 21:17:52,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12038 states. [2019-10-13 21:17:52,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12038 states to 12038 states and 17849 transitions. [2019-10-13 21:17:52,471 INFO L78 Accepts]: Start accepts. Automaton has 12038 states and 17849 transitions. Word has length 254 [2019-10-13 21:17:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:52,472 INFO L462 AbstractCegarLoop]: Abstraction has 12038 states and 17849 transitions. [2019-10-13 21:17:52,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:52,472 INFO L276 IsEmpty]: Start isEmpty. Operand 12038 states and 17849 transitions. [2019-10-13 21:17:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:17:52,512 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:52,512 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:52,512 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:52,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:52,513 INFO L82 PathProgramCache]: Analyzing trace with hash -944657491, now seen corresponding path program 1 times [2019-10-13 21:17:52,513 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:52,513 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440960975] [2019-10-13 21:17:52,514 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:52,514 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:52,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:52,785 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:52,785 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440960975] [2019-10-13 21:17:52,786 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:52,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:52,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853616691] [2019-10-13 21:17:52,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:52,787 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:52,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:52,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:52,787 INFO L87 Difference]: Start difference. First operand 12038 states and 17849 transitions. Second operand 8 states.