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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:50:39,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:50:39,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:50:39,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:50:39,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:50:39,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:50:39,200 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:50:39,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:50:39,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:50:39,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:50:39,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:50:39,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:50:39,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:50:39,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:50:39,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:50:39,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:50:39,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:50:39,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:50:39,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:50:39,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:50:39,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:50:39,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:50:39,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:50:39,219 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:50:39,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:50:39,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:50:39,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:50:39,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:50:39,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:50:39,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:50:39,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:50:39,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:50:39,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:50:39,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:50:39,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:50:39,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:50:39,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:50:39,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:50:39,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:50:39,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:50:39,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:50:39,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:50:39,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:50:39,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:50:39,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:50:39,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:50:39,260 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:50:39,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:50:39,261 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:50:39,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:50:39,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:50:39,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:50:39,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:50:39,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:50:39,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:50:39,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:50:39,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:50:39,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:50:39,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:50:39,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:50:39,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:50:39,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:50:39,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:50:39,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:50:39,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:50:39,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:50:39,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:50:39,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:50:39,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:50:39,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:50:39,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:50:39,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:50:39,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:50:39,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:50:39,559 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:50:39,560 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:50:39,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product13.cil.c [2019-10-07 14:50:39,617 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3187ebce/e3e2d29be560459ba969426a92b95c91/FLAGb52b64d8b [2019-10-07 14:50:40,214 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:50:40,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product13.cil.c [2019-10-07 14:50:40,234 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3187ebce/e3e2d29be560459ba969426a92b95c91/FLAGb52b64d8b [2019-10-07 14:50:40,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3187ebce/e3e2d29be560459ba969426a92b95c91 [2019-10-07 14:50:40,447 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:50:40,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:50:40,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:40,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:50:40,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:50:40,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:40" (1/1) ... [2019-10-07 14:50:40,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:40, skipping insertion in model container [2019-10-07 14:50:40,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:50:40" (1/1) ... [2019-10-07 14:50:40,462 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:50:40,530 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:50:41,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:41,277 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:50:41,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:50:41,533 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:50:41,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41 WrapperNode [2019-10-07 14:50:41,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:50:41,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:50:41,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:50:41,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:50:41,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... [2019-10-07 14:50:41,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:50:41,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:50:41,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:50:41,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:50:41,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:50:41,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:50:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:50:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:50:41,809 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:50:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:50:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:50:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:50:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:50:41,810 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:50:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:50:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:50:41,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:50:41,812 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:50:41,813 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:50:41,816 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:50:41,817 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:50:41,818 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:50:41,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:50:41,820 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:50:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:50:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:50:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:50:41,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:50:41,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:50:41,823 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:50:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:50:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:50:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:50:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:50:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:50:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:50:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-07 14:50:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:50:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:50:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:50:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:50:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:50:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:50:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:50:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:50:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:50:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:50:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:50:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:50:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:50:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:50:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:50:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:50:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:50:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:50:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:50:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:50:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:50:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:50:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:50:41,838 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:50:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:50:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:50:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:50:41,839 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:50:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:50:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:50:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:50:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:50:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:50:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:50:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:50:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-07 14:50:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:50:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-07 14:50:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:50:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:50:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:50:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:50:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:50:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:50:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:50:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:50:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:50:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:50:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:50:41,858 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:50:41,859 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:50:41,860 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:50:41,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:50:41,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:50:41,863 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:50:41,864 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:50:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:50:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:50:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:50:41,869 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:50:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:50:41,871 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:50:41,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:50:46,207 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:50:46,208 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:50:46,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:46 BoogieIcfgContainer [2019-10-07 14:50:46,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:50:46,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:50:46,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:50:46,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:50:46,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:50:40" (1/3) ... [2019-10-07 14:50:46,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d35bebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:46, skipping insertion in model container [2019-10-07 14:50:46,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:50:41" (2/3) ... [2019-10-07 14:50:46,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d35bebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:50:46, skipping insertion in model container [2019-10-07 14:50:46,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:50:46" (3/3) ... [2019-10-07 14:50:46,217 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product13.cil.c [2019-10-07 14:50:46,227 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:50:46,235 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:50:46,313 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:50:46,343 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:50:46,344 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:50:46,344 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:50:46,344 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:50:46,344 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:50:46,344 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:50:46,344 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:50:46,344 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:50:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2019-10-07 14:50:46,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:50:46,386 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:46,387 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:46,389 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:46,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:46,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1346398207, now seen corresponding path program 1 times [2019-10-07 14:50:46,404 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:46,404 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:46,404 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:46,404 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:46,899 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:46,899 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:46,900 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:50:46,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:50:46,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:50:46,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:46,920 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 2 states. [2019-10-07 14:50:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:46,989 INFO L93 Difference]: Finished difference Result 453 states and 538 transitions. [2019-10-07 14:50:46,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:50:46,991 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-10-07 14:50:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:47,021 INFO L225 Difference]: With dead ends: 453 [2019-10-07 14:50:47,021 INFO L226 Difference]: Without dead ends: 298 [2019-10-07 14:50:47,028 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:50:47,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-10-07 14:50:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2019-10-07 14:50:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-10-07 14:50:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 352 transitions. [2019-10-07 14:50:47,144 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 352 transitions. Word has length 134 [2019-10-07 14:50:47,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:47,147 INFO L462 AbstractCegarLoop]: Abstraction has 298 states and 352 transitions. [2019-10-07 14:50:47,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:50:47,148 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 352 transitions. [2019-10-07 14:50:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:50:47,160 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:47,160 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:47,161 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:47,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:47,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1891350600, now seen corresponding path program 1 times [2019-10-07 14:50:47,162 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:47,162 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:47,162 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,162 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:47,474 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:47,475 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:47,475 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:47,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:47,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:47,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:47,477 INFO L87 Difference]: Start difference. First operand 298 states and 352 transitions. Second operand 3 states. [2019-10-07 14:50:47,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:47,509 INFO L93 Difference]: Finished difference Result 438 states and 506 transitions. [2019-10-07 14:50:47,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:47,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-07 14:50:47,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:47,513 INFO L225 Difference]: With dead ends: 438 [2019-10-07 14:50:47,513 INFO L226 Difference]: Without dead ends: 300 [2019-10-07 14:50:47,516 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:47,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-10-07 14:50:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-10-07 14:50:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-10-07 14:50:47,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 354 transitions. [2019-10-07 14:50:47,534 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 354 transitions. Word has length 135 [2019-10-07 14:50:47,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:47,534 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 354 transitions. [2019-10-07 14:50:47,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 354 transitions. [2019-10-07 14:50:47,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:50:47,537 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:47,537 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:47,537 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:47,538 INFO L82 PathProgramCache]: Analyzing trace with hash -356204297, now seen corresponding path program 1 times [2019-10-07 14:50:47,538 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:47,538 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:47,538 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,538 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:47,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:47,737 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:47,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:47,738 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:47,738 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:50:47,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:50:47,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:50:47,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:47,740 INFO L87 Difference]: Start difference. First operand 300 states and 354 transitions. Second operand 3 states. [2019-10-07 14:50:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:47,778 INFO L93 Difference]: Finished difference Result 580 states and 712 transitions. [2019-10-07 14:50:47,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:50:47,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2019-10-07 14:50:47,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:47,784 INFO L225 Difference]: With dead ends: 580 [2019-10-07 14:50:47,784 INFO L226 Difference]: Without dead ends: 338 [2019-10-07 14:50:47,788 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:50:47,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2019-10-07 14:50:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 337. [2019-10-07 14:50:47,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2019-10-07 14:50:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 419 transitions. [2019-10-07 14:50:47,816 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 419 transitions. Word has length 140 [2019-10-07 14:50:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:47,817 INFO L462 AbstractCegarLoop]: Abstraction has 337 states and 419 transitions. [2019-10-07 14:50:47,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:50:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 419 transitions. [2019-10-07 14:50:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:50:47,823 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:47,824 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:50:47,824 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:47,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:47,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1806664441, now seen corresponding path program 1 times [2019-10-07 14:50:47,825 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:47,825 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:47,825 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,825 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:47,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:50:48,321 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:48,323 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:50:48,323 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:50:48,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:50:48,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:50:48,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:50:48,326 INFO L87 Difference]: Start difference. First operand 337 states and 419 transitions. Second operand 23 states. [2019-10-07 14:50:55,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:50:55,991 INFO L93 Difference]: Finished difference Result 766 states and 903 transitions. [2019-10-07 14:50:55,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-10-07 14:50:55,991 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 141 [2019-10-07 14:50:55,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:50:55,998 INFO L225 Difference]: With dead ends: 766 [2019-10-07 14:50:55,998 INFO L226 Difference]: Without dead ends: 590 [2019-10-07 14:50:56,000 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 587 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=2405, Unknown=0, NotChecked=0, Total=2756 [2019-10-07 14:50:56,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-07 14:50:56,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 580. [2019-10-07 14:50:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-07 14:50:56,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 683 transitions. [2019-10-07 14:50:56,038 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 683 transitions. Word has length 141 [2019-10-07 14:50:56,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:50:56,039 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 683 transitions. [2019-10-07 14:50:56,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:50:56,040 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 683 transitions. [2019-10-07 14:50:56,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-07 14:50:56,042 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:50:56,042 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:50:56,043 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:50:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:50:56,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1014630789, now seen corresponding path program 1 times [2019-10-07 14:50:56,044 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:50:56,044 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:56,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:50:56,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:50:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:56,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:50:56,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:50:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:50:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:50:56,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:50:56,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:50:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:57,000 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:50:57,295 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:50:57,295 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:50:57,333 INFO L162 IcfgInterpreter]: Started Sifa with 136 locations of interest [2019-10-07 14:50:57,333 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:50:57,344 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:50:57,351 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:50:57,352 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:51:45,796 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 678 [2019-10-07 14:51:49,355 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 301 DAG size of output: 245 [2019-10-07 14:51:49,753 WARN L191 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:51:50,141 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:51:50,433 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 716 [2019-10-07 14:51:50,646 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 14:51:51,329 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:51,990 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:52,632 WARN L191 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:52,779 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 14:51:53,420 WARN L191 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:54,794 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1015 DAG size of output: 1013 [2019-10-07 14:51:55,521 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:55,659 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 14:51:56,285 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:56,869 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:57,472 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:57,598 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 14:51:58,208 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1013 [2019-10-07 14:51:58,233 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 556 for LOIs [2019-10-07 14:51:58,588 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 645 [2019-10-07 14:51:58,815 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 448 [2019-10-07 14:51:59,263 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 942 [2019-10-07 14:51:59,264 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1044 for LOIs [2019-10-07 14:51:59,838 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:00,413 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:00,644 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:01,426 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:02,026 WARN L191 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:02,601 WARN L191 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:02,788 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:03,586 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:04,181 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:04,753 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:04,991 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:05,796 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:06,810 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 1044 [2019-10-07 14:52:07,384 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:07,650 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:08,433 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:09,027 WARN L191 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:09,598 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:09,779 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:10,561 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:11,135 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:11,721 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:11,911 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:12,701 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:13,277 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:13,847 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:14,040 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:14,829 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:15,399 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:15,985 WARN L191 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:16,182 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:16,960 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:17,538 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:18,129 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:18,313 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:19,119 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:19,689 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:20,260 WARN L191 SmtUtils]: Spent 568.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:20,442 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:21,235 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:21,808 WARN L191 SmtUtils]: Spent 570.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:22,378 WARN L191 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:22,558 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:23,335 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:23,910 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:24,487 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:24,670 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:25,451 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:26,030 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:26,606 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:52:26,791 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:27,577 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:28,409 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:29,184 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:29,382 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:30,162 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:31,598 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1153 [2019-10-07 14:52:32,386 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:32,595 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:33,374 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:34,149 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:34,934 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:35,118 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:35,901 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:36,749 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:37,544 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:37,734 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:52:38,522 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:39,321 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:40,104 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:40,295 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:52:41,078 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:41,861 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:42,643 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:42,830 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:52:43,622 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:52:44,423 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 14:52:45,218 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 14:52:45,449 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:52:46,238 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1162 [2019-10-07 14:52:47,037 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 14:52:47,839 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 14:52:48,028 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:52:48,826 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1164 [2019-10-07 14:52:51,130 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1153 [2019-10-07 14:52:51,924 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:52,128 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:52,896 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:54,343 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1153 [2019-10-07 14:52:55,106 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:55,294 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:56,081 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:56,861 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:57,635 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:52:57,816 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:52:58,588 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:00,692 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1153 [2019-10-07 14:53:01,459 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:01,648 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:53:02,430 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:03,807 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1155 DAG size of output: 1153 [2019-10-07 14:53:04,584 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:04,771 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:53:05,538 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:06,299 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:07,069 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:07,255 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-07 14:53:08,031 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1153 [2019-10-07 14:53:08,838 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:09,614 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:09,806 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:53:10,591 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:11,383 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:12,155 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:12,354 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:53:13,130 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:13,915 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:14,693 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:14,877 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:53:15,653 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:16,977 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1164 DAG size of output: 1155 [2019-10-07 14:53:17,772 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1155 [2019-10-07 14:53:17,964 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:53:18,745 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:20,141 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1166 DAG size of output: 1157 [2019-10-07 14:53:20,925 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1157 [2019-10-07 14:53:21,148 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 557 [2019-10-07 14:53:21,926 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1159 [2019-10-07 14:53:22,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:53:22,188 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:53:22,194 INFO L168 Benchmark]: Toolchain (without parser) took 161746.28 ms. Allocated memory was 146.3 MB in the beginning and 689.4 MB in the end (delta: 543.2 MB). Free memory was 101.5 MB in the beginning and 184.4 MB in the end (delta: -82.9 MB). Peak memory consumption was 460.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,195 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1085.79 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.1 MB in the beginning and 142.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,196 INFO L168 Benchmark]: Boogie Preprocessor took 188.40 ms. Allocated memory is still 204.5 MB. Free memory was 142.2 MB in the beginning and 133.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,197 INFO L168 Benchmark]: RCFGBuilder took 4485.98 ms. Allocated memory was 204.5 MB in the beginning and 294.1 MB in the end (delta: 89.7 MB). Free memory was 133.2 MB in the beginning and 84.5 MB in the end (delta: 48.7 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,198 INFO L168 Benchmark]: TraceAbstraction took 155981.71 ms. Allocated memory was 294.1 MB in the beginning and 689.4 MB in the end (delta: 395.3 MB). Free memory was 84.5 MB in the beginning and 184.4 MB in the end (delta: -99.8 MB). Peak memory consumption was 295.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:53:22,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1085.79 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.1 MB in the beginning and 142.2 MB in the end (delta: -41.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 188.40 ms. Allocated memory is still 204.5 MB. Free memory was 142.2 MB in the beginning and 133.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4485.98 ms. Allocated memory was 204.5 MB in the beginning and 294.1 MB in the end (delta: 89.7 MB). Free memory was 133.2 MB in the beginning and 84.5 MB in the end (delta: 48.7 MB). Peak memory consumption was 138.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 155981.71 ms. Allocated memory was 294.1 MB in the beginning and 689.4 MB in the end (delta: 395.3 MB). Free memory was 84.5 MB in the beginning and 184.4 MB in the end (delta: -99.8 MB). Peak memory consumption was 295.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...