/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:46:11,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:46:11,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:46:11,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:46:11,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:46:11,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:46:11,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:46:11,269 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:46:11,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:46:11,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:46:11,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:46:11,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:46:11,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:46:11,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:46:11,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:46:11,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:46:11,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:46:11,291 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:46:11,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:46:11,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:46:11,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:46:11,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:46:11,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:46:11,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:46:11,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:46:11,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:46:11,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:46:11,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:46:11,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:46:11,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:46:11,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:46:11,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:46:11,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:46:11,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:46:11,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:46:11,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:46:11,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:46:11,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:46:11,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:46:11,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:46:11,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:46:11,317 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:46:11,331 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:46:11,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:46:11,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:46:11,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:46:11,333 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:46:11,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:46:11,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:46:11,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:46:11,335 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:46:11,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:46:11,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:46:11,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:46:11,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:46:11,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:46:11,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:46:11,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:46:11,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:46:11,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:46:11,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:46:11,617 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:46:11,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:46:11,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:46:11,634 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:46:11,634 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:46:11,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-11-07 00:46:11,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76eeeb2d/4b8fbaf0aa544076a64c777f31f367c8/FLAG5ef0a1c58 [2019-11-07 00:46:12,383 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:46:12,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product33.cil.c [2019-11-07 00:46:12,413 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76eeeb2d/4b8fbaf0aa544076a64c777f31f367c8/FLAG5ef0a1c58 [2019-11-07 00:46:12,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76eeeb2d/4b8fbaf0aa544076a64c777f31f367c8 [2019-11-07 00:46:12,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:46:12,564 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:46:12,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:46:12,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:46:12,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:46:12,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:12" (1/1) ... [2019-11-07 00:46:12,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff7f5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:12, skipping insertion in model container [2019-11-07 00:46:12,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:12" (1/1) ... [2019-11-07 00:46:12,582 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:46:12,661 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:46:13,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:46:13,533 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:46:13,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:46:13,811 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:46:13,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13 WrapperNode [2019-11-07 00:46:13,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:46:13,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:46:13,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:46:13,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:46:13,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:13,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:13,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:13,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:13,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:14,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:14,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... [2019-11-07 00:46:14,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:46:14,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:46:14,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:46:14,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:46:14,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:46:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:46:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:46:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:46:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:46:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:46:14,135 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:46:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:46:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:46:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:46:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:46:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:46:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:46:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:46:14,138 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:46:14,139 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:46:14,139 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:46:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:46:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:46:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:46:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:46:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:46:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:46:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:46:14,142 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:46:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:46:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:46:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:46:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:46:14,143 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:46:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:46:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:46:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:46:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:46:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:46:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:46:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:46:14,146 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:46:14,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:46:14,148 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:46:14,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:46:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:46:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:46:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:46:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:46:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:46:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:46:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:46:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:46:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:46:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:46:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:46:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:46:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:46:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:46:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:46:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:46:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:46:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:46:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:46:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:46:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:46:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:46:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:46:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:46:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:46:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:46:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:46:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:46:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:46:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:46:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:46:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:46:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:46:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:46:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:46:14,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:46:14,162 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:46:14,163 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:46:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:46:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:46:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:46:14,164 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:46:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:46:14,165 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:46:14,166 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:46:14,168 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:46:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:46:14,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:46:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:46:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:46:14,170 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:46:14,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:46:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:46:14,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:46:14,178 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:46:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:46:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:46:14,179 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:46:14,180 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:46:14,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:46:14,182 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:46:14,183 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:46:14,184 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:46:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:46:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:46:14,187 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:46:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:46:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:46:14,190 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:46:14,191 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:46:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:46:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:46:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:46:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:46:14,192 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:46:14,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:46:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:46:14,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:46:16,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:46:16,371 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:46:16,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:16 BoogieIcfgContainer [2019-11-07 00:46:16,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:46:16,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:46:16,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:46:16,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:46:16,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:46:12" (1/3) ... [2019-11-07 00:46:16,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f1a903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:16, skipping insertion in model container [2019-11-07 00:46:16,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:13" (2/3) ... [2019-11-07 00:46:16,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27f1a903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:16, skipping insertion in model container [2019-11-07 00:46:16,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:16" (3/3) ... [2019-11-07 00:46:16,382 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product33.cil.c [2019-11-07 00:46:16,393 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:46:16,403 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:46:16,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:46:16,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:46:16,452 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:46:16,452 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:46:16,452 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:46:16,452 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:46:16,453 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:46:16,453 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:46:16,453 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:46:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-11-07 00:46:16,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-11-07 00:46:16,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:16,541 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:16,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:16,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:16,553 INFO L82 PathProgramCache]: Analyzing trace with hash -225515264, now seen corresponding path program 1 times [2019-11-07 00:46:16,566 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:16,567 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188553852] [2019-11-07 00:46:16,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:17,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:17,445 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:17,446 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188553852] [2019-11-07 00:46:17,447 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:17,447 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:46:17,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181979702] [2019-11-07 00:46:17,456 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:46:17,458 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:17,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:46:17,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:46:17,475 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-11-07 00:46:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:17,602 INFO L93 Difference]: Finished difference Result 905 states and 1190 transitions. [2019-11-07 00:46:17,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:46:17,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 232 [2019-11-07 00:46:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:17,641 INFO L225 Difference]: With dead ends: 905 [2019-11-07 00:46:17,642 INFO L226 Difference]: Without dead ends: 564 [2019-11-07 00:46:17,654 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:46:17,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-11-07 00:46:17,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2019-11-07 00:46:17,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-11-07 00:46:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 744 transitions. [2019-11-07 00:46:17,794 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 744 transitions. Word has length 232 [2019-11-07 00:46:17,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:17,798 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 744 transitions. [2019-11-07 00:46:17,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:46:17,799 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 744 transitions. [2019-11-07 00:46:17,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-11-07 00:46:17,809 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:17,809 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:17,810 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:17,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:17,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1451432834, now seen corresponding path program 1 times [2019-11-07 00:46:17,810 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:17,811 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503733080] [2019-11-07 00:46:17,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:18,175 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:18,176 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503733080] [2019-11-07 00:46:18,176 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:18,176 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:18,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937465208] [2019-11-07 00:46:18,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:18,197 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:18,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:18,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,198 INFO L87 Difference]: Start difference. First operand 564 states and 744 transitions. Second operand 3 states. [2019-11-07 00:46:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:18,273 INFO L93 Difference]: Finished difference Result 888 states and 1154 transitions. [2019-11-07 00:46:18,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:18,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-11-07 00:46:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:18,280 INFO L225 Difference]: With dead ends: 888 [2019-11-07 00:46:18,280 INFO L226 Difference]: Without dead ends: 567 [2019-11-07 00:46:18,282 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-11-07 00:46:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2019-11-07 00:46:18,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-11-07 00:46:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 746 transitions. [2019-11-07 00:46:18,318 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 746 transitions. Word has length 233 [2019-11-07 00:46:18,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:18,319 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 746 transitions. [2019-11-07 00:46:18,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:18,320 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 746 transitions. [2019-11-07 00:46:18,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-11-07 00:46:18,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:18,330 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:18,330 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:18,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:18,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1811771772, now seen corresponding path program 1 times [2019-11-07 00:46:18,331 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:18,331 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720794269] [2019-11-07 00:46:18,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:18,591 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:18,591 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720794269] [2019-11-07 00:46:18,592 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:18,592 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:18,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522675999] [2019-11-07 00:46:18,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:18,595 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:18,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:18,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,596 INFO L87 Difference]: Start difference. First operand 566 states and 746 transitions. Second operand 3 states. [2019-11-07 00:46:18,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:18,700 INFO L93 Difference]: Finished difference Result 1110 states and 1493 transitions. [2019-11-07 00:46:18,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:18,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-11-07 00:46:18,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:18,710 INFO L225 Difference]: With dead ends: 1110 [2019-11-07 00:46:18,710 INFO L226 Difference]: Without dead ends: 609 [2019-11-07 00:46:18,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-11-07 00:46:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2019-11-07 00:46:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-11-07 00:46:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 818 transitions. [2019-11-07 00:46:18,754 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 818 transitions. Word has length 245 [2019-11-07 00:46:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:18,755 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 818 transitions. [2019-11-07 00:46:18,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 818 transitions. [2019-11-07 00:46:18,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-11-07 00:46:18,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:18,762 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:18,762 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:18,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:18,763 INFO L82 PathProgramCache]: Analyzing trace with hash 2089199776, now seen corresponding path program 1 times [2019-11-07 00:46:18,763 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:18,763 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107876752] [2019-11-07 00:46:18,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:18,913 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:18,914 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107876752] [2019-11-07 00:46:18,914 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:18,914 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:18,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382866664] [2019-11-07 00:46:18,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:18,916 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:18,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:18,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,916 INFO L87 Difference]: Start difference. First operand 608 states and 818 transitions. Second operand 3 states. [2019-11-07 00:46:18,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:18,955 INFO L93 Difference]: Finished difference Result 1233 states and 1704 transitions. [2019-11-07 00:46:18,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:18,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-11-07 00:46:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:18,962 INFO L225 Difference]: With dead ends: 1233 [2019-11-07 00:46:18,962 INFO L226 Difference]: Without dead ends: 690 [2019-11-07 00:46:18,964 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:18,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2019-11-07 00:46:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 689. [2019-11-07 00:46:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2019-11-07 00:46:19,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 956 transitions. [2019-11-07 00:46:19,016 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 956 transitions. Word has length 246 [2019-11-07 00:46:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:19,017 INFO L462 AbstractCegarLoop]: Abstraction has 689 states and 956 transitions. [2019-11-07 00:46:19,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 956 transitions. [2019-11-07 00:46:19,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-11-07 00:46:19,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:19,024 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:19,024 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:19,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:19,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1330390200, now seen corresponding path program 1 times [2019-11-07 00:46:19,025 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:19,026 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793009079] [2019-11-07 00:46:19,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:19,685 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-07 00:46:19,686 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793009079] [2019-11-07 00:46:19,686 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:19,687 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:46:19,687 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660661964] [2019-11-07 00:46:19,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:46:19,688 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:19,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:46:19,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:46:19,691 INFO L87 Difference]: Start difference. First operand 689 states and 956 transitions. Second operand 19 states. [2019-11-07 00:46:25,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:25,389 INFO L93 Difference]: Finished difference Result 2335 states and 3224 transitions. [2019-11-07 00:46:25,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:46:25,389 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 249 [2019-11-07 00:46:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:25,412 INFO L225 Difference]: With dead ends: 2335 [2019-11-07 00:46:25,412 INFO L226 Difference]: Without dead ends: 2027 [2019-11-07 00:46:25,416 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:46:25,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-11-07 00:46:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1990. [2019-11-07 00:46:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2019-11-07 00:46:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2766 transitions. [2019-11-07 00:46:25,560 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2766 transitions. Word has length 249 [2019-11-07 00:46:25,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:25,562 INFO L462 AbstractCegarLoop]: Abstraction has 1990 states and 2766 transitions. [2019-11-07 00:46:25,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:46:25,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2766 transitions. [2019-11-07 00:46:25,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-11-07 00:46:25,573 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:25,573 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:25,574 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1816922894, now seen corresponding path program 1 times [2019-11-07 00:46:25,574 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:25,575 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769845211] [2019-11-07 00:46:25,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:25,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:25,862 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-11-07 00:46:25,863 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769845211] [2019-11-07 00:46:25,863 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:25,863 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:46:25,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954191430] [2019-11-07 00:46:25,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:46:25,864 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:25,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:46:25,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:46:25,865 INFO L87 Difference]: Start difference. First operand 1990 states and 2766 transitions. Second operand 11 states. [2019-11-07 00:46:26,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:26,298 INFO L93 Difference]: Finished difference Result 3347 states and 4565 transitions. [2019-11-07 00:46:26,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:46:26,299 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 250 [2019-11-07 00:46:26,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:26,319 INFO L225 Difference]: With dead ends: 3347 [2019-11-07 00:46:26,319 INFO L226 Difference]: Without dead ends: 2048 [2019-11-07 00:46:26,326 INFO L630 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 [2019-11-07 00:46:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2019-11-07 00:46:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2019-11-07 00:46:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2019-11-07 00:46:26,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2859 transitions. [2019-11-07 00:46:26,464 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2859 transitions. Word has length 250 [2019-11-07 00:46:26,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:26,467 INFO L462 AbstractCegarLoop]: Abstraction has 2048 states and 2859 transitions. [2019-11-07 00:46:26,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:46:26,467 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2859 transitions. [2019-11-07 00:46:26,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-11-07 00:46:26,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:26,481 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:26,481 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:26,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:26,482 INFO L82 PathProgramCache]: Analyzing trace with hash 254235924, now seen corresponding path program 1 times [2019-11-07 00:46:26,482 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:26,482 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427655226] [2019-11-07 00:46:26,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-07 00:46:26,870 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427655226] [2019-11-07 00:46:26,870 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:26,870 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:46:26,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695824565] [2019-11-07 00:46:26,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:46:26,871 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:26,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:46:26,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:46:26,872 INFO L87 Difference]: Start difference. First operand 2048 states and 2859 transitions. Second operand 15 states. [2019-11-07 00:46:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:31,113 INFO L93 Difference]: Finished difference Result 3460 states and 4756 transitions. [2019-11-07 00:46:31,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:46:31,114 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 250 [2019-11-07 00:46:31,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:31,140 INFO L225 Difference]: With dead ends: 3460 [2019-11-07 00:46:31,140 INFO L226 Difference]: Without dead ends: 2164 [2019-11-07 00:46:31,148 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:46:31,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-11-07 00:46:31,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-11-07 00:46:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-11-07 00:46:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-11-07 00:46:31,335 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 250 [2019-11-07 00:46:31,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:31,339 INFO L462 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-11-07 00:46:31,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:46:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-11-07 00:46:31,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-11-07 00:46:31,354 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:31,355 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:31,355 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:31,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:31,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1393485236, now seen corresponding path program 1 times [2019-11-07 00:46:31,356 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:31,356 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696858586] [2019-11-07 00:46:31,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-07 00:46:31,715 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696858586] [2019-11-07 00:46:31,715 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:31,715 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:46:31,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600170249] [2019-11-07 00:46:31,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:46:31,717 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:31,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:46:31,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:46:31,718 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 15 states. [2019-11-07 00:46:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:36,418 INFO L93 Difference]: Finished difference Result 3522 states and 4849 transitions. [2019-11-07 00:46:36,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:46:36,418 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 251 [2019-11-07 00:46:36,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:36,434 INFO L225 Difference]: With dead ends: 3522 [2019-11-07 00:46:36,434 INFO L226 Difference]: Without dead ends: 2164 [2019-11-07 00:46:36,442 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:46:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-11-07 00:46:36,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-11-07 00:46:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-11-07 00:46:36,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-11-07 00:46:36,558 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 251 [2019-11-07 00:46:36,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:36,559 INFO L462 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-11-07 00:46:36,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:46:36,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-11-07 00:46:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-11-07 00:46:36,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:36,570 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:36,570 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:36,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1117860735, now seen corresponding path program 1 times [2019-11-07 00:46:36,571 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:36,571 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998708990] [2019-11-07 00:46:36,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:36,765 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998708990] [2019-11-07 00:46:36,765 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556509848] [2019-11-07 00:46:36,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:46:37,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:37,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 3069 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:46:37,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:46:37,619 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-11-07 00:46:37,619 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:46:38,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:46:38,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:46:38,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:46:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-07 00:46:38,358 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:46:38,359 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5, 9] total 18 [2019-11-07 00:46:38,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723893275] [2019-11-07 00:46:38,360 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:46:38,360 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:38,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:46:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:46:38,361 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 9 states. [2019-11-07 00:46:39,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:39,895 INFO L93 Difference]: Finished difference Result 4222 states and 5942 transitions. [2019-11-07 00:46:39,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:46:39,896 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 253 [2019-11-07 00:46:39,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:39,910 INFO L225 Difference]: With dead ends: 4222 [2019-11-07 00:46:39,910 INFO L226 Difference]: Without dead ends: 2136 [2019-11-07 00:46:39,921 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 490 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2019-11-07 00:46:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2019-11-07 00:46:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 2136. [2019-11-07 00:46:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2019-11-07 00:46:40,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2999 transitions. [2019-11-07 00:46:40,076 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2999 transitions. Word has length 253 [2019-11-07 00:46:40,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:40,076 INFO L462 AbstractCegarLoop]: Abstraction has 2136 states and 2999 transitions. [2019-11-07 00:46:40,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:46:40,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2999 transitions. [2019-11-07 00:46:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-11-07 00:46:40,084 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:40,085 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:40,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:46:40,292 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:40,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1018937589, now seen corresponding path program 1 times [2019-11-07 00:46:40,293 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:40,293 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432708110] [2019-11-07 00:46:40,293 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:40,587 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-07 00:46:40,588 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432708110] [2019-11-07 00:46:40,588 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973651667] [2019-11-07 00:46:40,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:46:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:41,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 3070 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:46:41,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:46:41,475 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 00:46:41,475 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:46:41,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:46:41,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:46:41,868 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:46:41,869 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:46:41,869 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 7] total 14 [2019-11-07 00:46:41,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536144847] [2019-11-07 00:46:41,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:46:41,872 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:41,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:46:41,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-07 00:46:41,873 INFO L87 Difference]: Start difference. First operand 2136 states and 2999 transitions. Second operand 7 states. [2019-11-07 00:46:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:43,154 INFO L93 Difference]: Finished difference Result 4225 states and 5955 transitions. [2019-11-07 00:46:43,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:46:43,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2019-11-07 00:46:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:43,168 INFO L225 Difference]: With dead ends: 4225 [2019-11-07 00:46:43,168 INFO L226 Difference]: Without dead ends: 2140 [2019-11-07 00:46:43,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 499 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:46:43,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2019-11-07 00:46:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2019-11-07 00:46:43,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2019-11-07 00:46:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 3004 transitions. [2019-11-07 00:46:43,275 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 3004 transitions. Word has length 255 [2019-11-07 00:46:43,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:43,276 INFO L462 AbstractCegarLoop]: Abstraction has 2140 states and 3004 transitions. [2019-11-07 00:46:43,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:46:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 3004 transitions. [2019-11-07 00:46:43,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-11-07 00:46:43,283 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:43,284 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-11-07 00:46:43,491 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:46:43,491 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:43,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:43,492 INFO L82 PathProgramCache]: Analyzing trace with hash 549506572, now seen corresponding path program 1 times [2019-11-07 00:46:43,492 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:43,492 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133298765] [2019-11-07 00:46:43,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 00:46:43,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133298765] [2019-11-07 00:46:43,681 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659913921] [2019-11-07 00:46:43,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:46:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:44,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 3071 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:46:44,462 INFO L279 TraceCheckSpWp]: Computing forward predicates...