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_spec8_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:17:36,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:17:36,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:17:36,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:17:36,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:17:36,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:17:36,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:17:36,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:17:36,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:17:36,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:17:36,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:17:36,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:17:36,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:17:36,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:17:36,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:17:36,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:17:36,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:17:36,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:17:36,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:17:36,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:17:36,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:17:36,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:17:36,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:17:36,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:17:36,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:17:36,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:17:36,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:17:36,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:17:36,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:17:36,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:17:36,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:17:36,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:17:36,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:17:36,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:17:36,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:17:36,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:17:36,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:17:36,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:17:36,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:17:36,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:17:36,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:17:36,607 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 [2019-10-15 03:17:36,629 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:17:36,629 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:17:36,631 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:17:36,631 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:17:36,631 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:17:36,632 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:17:36,632 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:17:36,632 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:17:36,632 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:17:36,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:17:36,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:17:36,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:17:36,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:17:36,634 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:17:36,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:17:36,635 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:17:36,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:17:36,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:17:36,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:17:36,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:17:36,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:17:36,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:17:36,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:17:36,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:17:36,637 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:17:36,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:17:36,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:17:36,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:17:36,638 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 [2019-10-15 03:17:36,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:17:36,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:17:36,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:17:36,938 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:17:36,938 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:17:36,939 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-15 03:17:37,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4948e23/6048795782f34ac5ab5c2a14228f7b92/FLAGe1e435926 [2019-10-15 03:17:37,735 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:17:37,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product35.cil.c [2019-10-15 03:17:37,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4948e23/6048795782f34ac5ab5c2a14228f7b92/FLAGe1e435926 [2019-10-15 03:17:37,879 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f4948e23/6048795782f34ac5ab5c2a14228f7b92 [2019-10-15 03:17:37,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:17:37,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:17:37,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:37,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:17:37,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:17:37,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:37" (1/1) ... [2019-10-15 03:17:37,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39aa9343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:37, skipping insertion in model container [2019-10-15 03:17:37,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:17:37" (1/1) ... [2019-10-15 03:17:37,903 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:17:37,982 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:17:38,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:38,836 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:17:38,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:17:39,155 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:17:39,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39 WrapperNode [2019-10-15 03:17:39,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:17:39,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:17:39,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:17:39,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:17:39,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (1/1) ... [2019-10-15 03:17:39,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:17:39,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:17:39,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:17:39,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:17:39,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (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 [2019-10-15 03:17:39,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:17:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:17:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:17:39,502 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:17:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:17:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:17:39,503 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:17:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:17:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:17:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:17:39,504 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:17:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:17:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:17:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:17:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:17:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:17:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:17:39,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:17:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:17:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:17:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:17:39,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:17:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:17:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:17:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:17:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:17:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:17:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:17:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:17:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:17:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:17:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:17:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:17:39,512 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:17:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:17:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:17:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:17:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:17:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:17:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:17:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:17:39,514 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:17:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:17:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:17:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:17:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:17:39,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:17:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:17:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:17:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:17:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:17:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:17:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:17:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:17:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:17:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:17:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:17:39,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:17:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:17:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:17:39,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:17:39,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:17:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:17:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:17:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:17:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:17:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:17:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:17:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:17:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:17:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:17:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:17:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:17:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:17:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:17:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:17:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:17:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:17:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:17:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:17:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:17:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:17:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:17:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:17:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:17:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:17:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:17:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:17:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:17:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:17:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:17:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:17:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:17:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:17:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:17:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:17:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:17:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:17:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:17:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:17:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:17:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:17:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:17:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:17:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:17:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:17:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:17:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:17:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:17:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:17:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:17:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:17:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:17:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:17:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:17:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:17:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:17:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:17:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:17:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:17:39,558 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:17:39,559 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:17:39,560 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:17:39,561 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:17:39,562 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 03:17:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:17:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:17:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:17:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:17:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:17:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:17:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:17:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:17:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:17:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:17:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:17:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:17:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:17:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:17:39,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:17:39,577 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 03:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:17:39,578 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:17:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:17:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:17:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:17:39,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:17:44,529 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:17:44,530 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:17:44,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:44 BoogieIcfgContainer [2019-10-15 03:17:44,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:17:44,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:17:44,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:17:44,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:17:44,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:17:37" (1/3) ... [2019-10-15 03:17:44,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4f3fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:44, skipping insertion in model container [2019-10-15 03:17:44,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:17:39" (2/3) ... [2019-10-15 03:17:44,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4f3fe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:17:44, skipping insertion in model container [2019-10-15 03:17:44,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:17:44" (3/3) ... [2019-10-15 03:17:44,545 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product35.cil.c [2019-10-15 03:17:44,558 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:17:44,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:17:44,584 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:17:44,630 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:17:44,630 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:17:44,630 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:17:44,630 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:17:44,630 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:17:44,630 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:17:44,631 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:17:44,631 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:17:44,675 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states. [2019-10-15 03:17:44,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:17:44,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:44,698 INFO L380 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] [2019-10-15 03:17:44,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:44,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:44,704 INFO L82 PathProgramCache]: Analyzing trace with hash 670570149, now seen corresponding path program 1 times [2019-10-15 03:17:44,713 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:44,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790307023] [2019-10-15 03:17:44,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:44,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:44,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:45,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:45,396 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790307023] [2019-10-15 03:17:45,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:45,397 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:17:45,397 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510222842] [2019-10-15 03:17:45,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:17:45,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:45,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:17:45,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:45,420 INFO L87 Difference]: Start difference. First operand 482 states. Second operand 2 states. [2019-10-15 03:17:45,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:45,497 INFO L93 Difference]: Finished difference Result 739 states and 881 transitions. [2019-10-15 03:17:45,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:17:45,498 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-10-15 03:17:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:45,528 INFO L225 Difference]: With dead ends: 739 [2019-10-15 03:17:45,528 INFO L226 Difference]: Without dead ends: 455 [2019-10-15 03:17:45,542 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:17:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2019-10-15 03:17:45,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2019-10-15 03:17:45,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-15 03:17:45,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 538 transitions. [2019-10-15 03:17:45,668 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 538 transitions. Word has length 132 [2019-10-15 03:17:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:45,670 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 538 transitions. [2019-10-15 03:17:45,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:17:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 538 transitions. [2019-10-15 03:17:45,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-15 03:17:45,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:45,681 INFO L380 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] [2019-10-15 03:17:45,681 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:45,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:45,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1391113483, now seen corresponding path program 1 times [2019-10-15 03:17:45,682 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:45,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926985811] [2019-10-15 03:17:45,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:45,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:45,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:46,065 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:46,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926985811] [2019-10-15 03:17:46,066 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:46,066 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:46,067 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200157806] [2019-10-15 03:17:46,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:46,069 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:46,070 INFO L87 Difference]: Start difference. First operand 455 states and 538 transitions. Second operand 3 states. [2019-10-15 03:17:46,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:46,157 INFO L93 Difference]: Finished difference Result 724 states and 849 transitions. [2019-10-15 03:17:46,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:46,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2019-10-15 03:17:46,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:46,169 INFO L225 Difference]: With dead ends: 724 [2019-10-15 03:17:46,169 INFO L226 Difference]: Without dead ends: 457 [2019-10-15 03:17:46,174 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:46,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-15 03:17:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2019-10-15 03:17:46,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-15 03:17:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 540 transitions. [2019-10-15 03:17:46,228 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 540 transitions. Word has length 133 [2019-10-15 03:17:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:46,229 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 540 transitions. [2019-10-15 03:17:46,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 540 transitions. [2019-10-15 03:17:46,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:17:46,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:46,235 INFO L380 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] [2019-10-15 03:17:46,235 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:46,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:46,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1810896350, now seen corresponding path program 1 times [2019-10-15 03:17:46,236 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:46,236 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503127154] [2019-10-15 03:17:46,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,236 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:17:46,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503127154] [2019-10-15 03:17:46,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:46,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:46,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158842909] [2019-10-15 03:17:46,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:46,487 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:46,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:46,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:46,487 INFO L87 Difference]: Start difference. First operand 457 states and 540 transitions. Second operand 3 states. [2019-10-15 03:17:46,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:46,560 INFO L93 Difference]: Finished difference Result 900 states and 1093 transitions. [2019-10-15 03:17:46,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:46,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2019-10-15 03:17:46,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:46,567 INFO L225 Difference]: With dead ends: 900 [2019-10-15 03:17:46,567 INFO L226 Difference]: Without dead ends: 501 [2019-10-15 03:17:46,572 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:46,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-15 03:17:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 500. [2019-10-15 03:17:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2019-10-15 03:17:46,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 614 transitions. [2019-10-15 03:17:46,618 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 614 transitions. Word has length 145 [2019-10-15 03:17:46,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:46,619 INFO L462 AbstractCegarLoop]: Abstraction has 500 states and 614 transitions. [2019-10-15 03:17:46,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:46,620 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 614 transitions. [2019-10-15 03:17:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:17:46,628 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:46,628 INFO L380 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] [2019-10-15 03:17:46,628 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:46,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1725128397, now seen corresponding path program 1 times [2019-10-15 03:17:46,629 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:46,629 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722551652] [2019-10-15 03:17:46,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,629 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:46,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:46,952 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:17:46,952 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722551652] [2019-10-15 03:17:46,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:46,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:46,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134941423] [2019-10-15 03:17:46,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:46,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:46,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:46,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:46,955 INFO L87 Difference]: Start difference. First operand 500 states and 614 transitions. Second operand 3 states. [2019-10-15 03:17:47,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:47,006 INFO L93 Difference]: Finished difference Result 836 states and 1009 transitions. [2019-10-15 03:17:47,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:47,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 03:17:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:47,011 INFO L225 Difference]: With dead ends: 836 [2019-10-15 03:17:47,011 INFO L226 Difference]: Without dead ends: 581 [2019-10-15 03:17:47,013 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-15 03:17:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-15 03:17:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-15 03:17:47,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 705 transitions. [2019-10-15 03:17:47,107 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 705 transitions. Word has length 146 [2019-10-15 03:17:47,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:47,108 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 705 transitions. [2019-10-15 03:17:47,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 705 transitions. [2019-10-15 03:17:47,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-15 03:17:47,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:47,116 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:47,116 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:47,116 INFO L82 PathProgramCache]: Analyzing trace with hash 945482337, now seen corresponding path program 1 times [2019-10-15 03:17:47,117 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:47,117 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40925398] [2019-10-15 03:17:47,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:47,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:47,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:47,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:47,562 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:47,562 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40925398] [2019-10-15 03:17:47,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:47,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:17:47,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329785643] [2019-10-15 03:17:47,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:17:47,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:47,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:17:47,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:17:47,566 INFO L87 Difference]: Start difference. First operand 580 states and 705 transitions. Second operand 14 states. [2019-10-15 03:17:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:52,217 INFO L93 Difference]: Finished difference Result 1393 states and 1682 transitions. [2019-10-15 03:17:52,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:17:52,220 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 266 [2019-10-15 03:17:52,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:52,227 INFO L225 Difference]: With dead ends: 1393 [2019-10-15 03:17:52,228 INFO L226 Difference]: Without dead ends: 1080 [2019-10-15 03:17:52,230 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:17:52,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2019-10-15 03:17:52,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1071. [2019-10-15 03:17:52,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1071 states. [2019-10-15 03:17:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1310 transitions. [2019-10-15 03:17:52,295 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1310 transitions. Word has length 266 [2019-10-15 03:17:52,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:52,295 INFO L462 AbstractCegarLoop]: Abstraction has 1071 states and 1310 transitions. [2019-10-15 03:17:52,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:17:52,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1310 transitions. [2019-10-15 03:17:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2019-10-15 03:17:52,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:52,303 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:52,304 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:52,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:52,304 INFO L82 PathProgramCache]: Analyzing trace with hash 862060710, now seen corresponding path program 1 times [2019-10-15 03:17:52,305 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:52,305 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000603399] [2019-10-15 03:17:52,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:52,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:52,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:52,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000603399] [2019-10-15 03:17:52,520 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:52,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:52,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957398126] [2019-10-15 03:17:52,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:52,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:52,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:52,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:52,523 INFO L87 Difference]: Start difference. First operand 1071 states and 1310 transitions. Second operand 3 states. [2019-10-15 03:17:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:52,585 INFO L93 Difference]: Finished difference Result 2248 states and 2841 transitions. [2019-10-15 03:17:52,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:52,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2019-10-15 03:17:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:52,594 INFO L225 Difference]: With dead ends: 2248 [2019-10-15 03:17:52,594 INFO L226 Difference]: Without dead ends: 1235 [2019-10-15 03:17:52,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:52,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2019-10-15 03:17:52,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1233. [2019-10-15 03:17:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1233 states. [2019-10-15 03:17:52,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1233 states to 1233 states and 1588 transitions. [2019-10-15 03:17:52,681 INFO L78 Accepts]: Start accepts. Automaton has 1233 states and 1588 transitions. Word has length 281 [2019-10-15 03:17:52,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:52,682 INFO L462 AbstractCegarLoop]: Abstraction has 1233 states and 1588 transitions. [2019-10-15 03:17:52,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1233 states and 1588 transitions. [2019-10-15 03:17:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-10-15 03:17:52,693 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:52,693 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:52,693 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:52,694 INFO L82 PathProgramCache]: Analyzing trace with hash 312490161, now seen corresponding path program 1 times [2019-10-15 03:17:52,694 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:52,695 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477229641] [2019-10-15 03:17:52,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:52,695 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:52,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:53,054 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:53,054 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477229641] [2019-10-15 03:17:53,054 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:53,055 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:53,055 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186431513] [2019-10-15 03:17:53,056 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:53,056 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:53,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:53,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:53,057 INFO L87 Difference]: Start difference. First operand 1233 states and 1588 transitions. Second operand 3 states. [2019-10-15 03:17:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:53,139 INFO L93 Difference]: Finished difference Result 2722 states and 3655 transitions. [2019-10-15 03:17:53,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:53,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2019-10-15 03:17:53,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:53,150 INFO L225 Difference]: With dead ends: 2722 [2019-10-15 03:17:53,150 INFO L226 Difference]: Without dead ends: 1547 [2019-10-15 03:17:53,155 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2019-10-15 03:17:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1545. [2019-10-15 03:17:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2019-10-15 03:17:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 2120 transitions. [2019-10-15 03:17:53,249 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 2120 transitions. Word has length 282 [2019-10-15 03:17:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:53,249 INFO L462 AbstractCegarLoop]: Abstraction has 1545 states and 2120 transitions. [2019-10-15 03:17:53,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 2120 transitions. [2019-10-15 03:17:53,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-15 03:17:53,261 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:53,262 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:53,262 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:53,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:53,263 INFO L82 PathProgramCache]: Analyzing trace with hash 527919014, now seen corresponding path program 1 times [2019-10-15 03:17:53,263 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:53,263 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368609094] [2019-10-15 03:17:53,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:53,263 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:53,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:53,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368609094] [2019-10-15 03:17:53,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:53,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:53,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296867603] [2019-10-15 03:17:53,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:53,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:53,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:53,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:53,626 INFO L87 Difference]: Start difference. First operand 1545 states and 2120 transitions. Second operand 3 states. [2019-10-15 03:17:53,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:53,755 INFO L93 Difference]: Finished difference Result 3634 states and 5211 transitions. [2019-10-15 03:17:53,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:53,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 283 [2019-10-15 03:17:53,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:53,771 INFO L225 Difference]: With dead ends: 3634 [2019-10-15 03:17:53,771 INFO L226 Difference]: Without dead ends: 2147 [2019-10-15 03:17:53,780 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:53,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2019-10-15 03:17:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2145. [2019-10-15 03:17:53,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2019-10-15 03:17:53,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 3136 transitions. [2019-10-15 03:17:53,922 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 3136 transitions. Word has length 283 [2019-10-15 03:17:53,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:53,923 INFO L462 AbstractCegarLoop]: Abstraction has 2145 states and 3136 transitions. [2019-10-15 03:17:53,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 3136 transitions. [2019-10-15 03:17:53,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 03:17:53,939 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:53,940 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:53,940 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:53,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:53,941 INFO L82 PathProgramCache]: Analyzing trace with hash 419724721, now seen corresponding path program 1 times [2019-10-15 03:17:53,941 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:53,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797464270] [2019-10-15 03:17:53,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:53,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:53,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:54,172 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:54,173 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797464270] [2019-10-15 03:17:54,173 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:54,173 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:54,173 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107161320] [2019-10-15 03:17:54,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:54,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:54,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:54,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:54,175 INFO L87 Difference]: Start difference. First operand 2145 states and 3136 transitions. Second operand 3 states. [2019-10-15 03:17:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:54,331 INFO L93 Difference]: Finished difference Result 5386 states and 8179 transitions. [2019-10-15 03:17:54,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:54,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 284 [2019-10-15 03:17:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:54,353 INFO L225 Difference]: With dead ends: 5386 [2019-10-15 03:17:54,353 INFO L226 Difference]: Without dead ends: 3299 [2019-10-15 03:17:54,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2019-10-15 03:17:54,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 3297. [2019-10-15 03:17:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3297 states. [2019-10-15 03:17:54,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 5072 transitions. [2019-10-15 03:17:54,620 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 5072 transitions. Word has length 284 [2019-10-15 03:17:54,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:54,621 INFO L462 AbstractCegarLoop]: Abstraction has 3297 states and 5072 transitions. [2019-10-15 03:17:54,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:54,621 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 5072 transitions. [2019-10-15 03:17:54,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2019-10-15 03:17:54,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:54,648 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:54,648 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:54,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:54,649 INFO L82 PathProgramCache]: Analyzing trace with hash 587560614, now seen corresponding path program 1 times [2019-10-15 03:17:54,649 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:54,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968010278] [2019-10-15 03:17:54,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:54,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:54,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:54,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968010278] [2019-10-15 03:17:54,903 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:54,904 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:54,904 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258635121] [2019-10-15 03:17:54,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:54,905 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:54,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:54,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:54,905 INFO L87 Difference]: Start difference. First operand 3297 states and 5072 transitions. Second operand 3 states. [2019-10-15 03:17:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:55,139 INFO L93 Difference]: Finished difference Result 8746 states and 13827 transitions. [2019-10-15 03:17:55,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:55,139 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 285 [2019-10-15 03:17:55,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:55,176 INFO L225 Difference]: With dead ends: 8746 [2019-10-15 03:17:55,176 INFO L226 Difference]: Without dead ends: 5507 [2019-10-15 03:17:55,189 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:55,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2019-10-15 03:17:55,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 5505. [2019-10-15 03:17:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5505 states. [2019-10-15 03:17:55,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5505 states to 5505 states and 8752 transitions. [2019-10-15 03:17:55,518 INFO L78 Accepts]: Start accepts. Automaton has 5505 states and 8752 transitions. Word has length 285 [2019-10-15 03:17:55,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:55,519 INFO L462 AbstractCegarLoop]: Abstraction has 5505 states and 8752 transitions. [2019-10-15 03:17:55,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5505 states and 8752 transitions. [2019-10-15 03:17:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-15 03:17:55,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:55,559 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:55,559 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash -607642959, now seen corresponding path program 1 times [2019-10-15 03:17:55,560 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:55,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101670509] [2019-10-15 03:17:55,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:55,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:55,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:55,872 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:55,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101670509] [2019-10-15 03:17:55,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:17:55,873 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:17:55,873 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469448568] [2019-10-15 03:17:55,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:17:55,874 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:17:55,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:17:55,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:55,875 INFO L87 Difference]: Start difference. First operand 5505 states and 8752 transitions. Second operand 3 states. [2019-10-15 03:17:56,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:17:56,235 INFO L93 Difference]: Finished difference Result 15178 states and 24547 transitions. [2019-10-15 03:17:56,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:17:56,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-10-15 03:17:56,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:17:56,305 INFO L225 Difference]: With dead ends: 15178 [2019-10-15 03:17:56,305 INFO L226 Difference]: Without dead ends: 9731 [2019-10-15 03:17:56,329 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:17:56,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9731 states. [2019-10-15 03:17:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9731 to 9729. [2019-10-15 03:17:56,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9729 states. [2019-10-15 03:17:56,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9729 states to 9729 states and 15728 transitions. [2019-10-15 03:17:56,900 INFO L78 Accepts]: Start accepts. Automaton has 9729 states and 15728 transitions. Word has length 286 [2019-10-15 03:17:56,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:17:56,900 INFO L462 AbstractCegarLoop]: Abstraction has 9729 states and 15728 transitions. [2019-10-15 03:17:56,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:17:56,900 INFO L276 IsEmpty]: Start isEmpty. Operand 9729 states and 15728 transitions. [2019-10-15 03:17:56,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-10-15 03:17:56,959 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:17:56,960 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:17:56,960 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:17:56,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:17:56,961 INFO L82 PathProgramCache]: Analyzing trace with hash -319017562, now seen corresponding path program 1 times [2019-10-15 03:17:56,961 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:17:56,961 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141719042] [2019-10-15 03:17:56,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,961 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:17:56,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:17:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:57,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141719042] [2019-10-15 03:17:57,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434245983] [2019-10-15 03:17:57,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:17:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:17:58,459 INFO L256 TraceCheckSpWp]: Trace formula consists of 3947 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:17:58,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:17:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-15 03:17:58,791 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:17:59,350 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2019-10-15 03:17:59,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [135711598] [2019-10-15 03:17:59,387 INFO L162 IcfgInterpreter]: Started Sifa with 234 locations of interest [2019-10-15 03:17:59,387 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:17:59,396 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:17:59,405 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:17:59,405 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs