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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:53:06,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:53:06,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:53:06,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:53:06,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:53:06,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:53:06,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:53:06,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:53:06,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:53:06,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:53:06,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:53:06,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:53:06,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:53:06,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:53:06,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:53:06,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:53:06,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:53:06,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:53:06,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:53:06,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:53:06,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:53:06,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:53:06,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:53:06,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:53:06,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:53:06,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:53:06,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:53:06,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:53:06,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:53:06,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:53:06,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:53:06,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:53:06,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:53:06,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:53:06,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:53:06,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:53:06,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:53:06,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:53:06,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:53:06,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:53:06,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:53:06,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:53:06,307 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:53:06,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:53:06,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:53:06,307 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:53:06,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:53:06,308 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:53:06,309 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:53:06,309 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:53:06,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:53:06,309 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:53:06,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:53:06,310 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:53:06,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:53:06,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:53:06,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:53:06,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:53:06,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:53:06,311 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:53:06,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:53:06,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:53:06,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:53:06,313 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:53:06,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:53:06,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:53:06,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:53:06,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:53:06,314 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:53:06,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:53:06,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:53:06,315 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:53:06,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:53:06,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:53:06,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:53:06,365 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:53:06,365 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:53:06,366 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-03 02:53:06,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a9daea8/93b9f19e4fef4a22afe60864ecabe0b0/FLAGc157eb57d [2019-10-03 02:53:07,125 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:53:07,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product18.cil.c [2019-10-03 02:53:07,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a9daea8/93b9f19e4fef4a22afe60864ecabe0b0/FLAGc157eb57d [2019-10-03 02:53:07,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7a9daea8/93b9f19e4fef4a22afe60864ecabe0b0 [2019-10-03 02:53:07,292 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:53:07,293 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:53:07,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:07,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:53:07,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:53:07,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:07" (1/1) ... [2019-10-03 02:53:07,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373eb7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:07, skipping insertion in model container [2019-10-03 02:53:07,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:53:07" (1/1) ... [2019-10-03 02:53:07,311 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:53:07,385 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:53:08,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:08,268 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:53:08,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:53:08,474 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:53:08,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08 WrapperNode [2019-10-03 02:53:08,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:53:08,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:53:08,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:53:08,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:53:08,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (1/1) ... [2019-10-03 02:53:08,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:53:08,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:53:08,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:53:08,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:53:08,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (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 [2019-10-03 02:53:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:53:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:53:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:53:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:53:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:53:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:53:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:53:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:53:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:53:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:53:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:53:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:53:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:53:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:53:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:53:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:53:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:53:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:53:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:53:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:53:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:53:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:53:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:53:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:53:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:53:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:53:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:53:08,739 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:53:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:53:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:53:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:53:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:53:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:53:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:53:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:53:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:53:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:53:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:53:08,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:53:08,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:53:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:53:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:53:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:53:08,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:53:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:53:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:53:08,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:53:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:53:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:53:08,746 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:53:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:53:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:53:08,747 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:53:08,748 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-03 02:53:08,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-03 02:53:08,749 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:53:08,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:53:08,749 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:53:08,750 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:08,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:53:08,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:53:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:53:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:53:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:53:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:53:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-03 02:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-03 02:53:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:53:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:53:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:53:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:53:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:53:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-03 02:53:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-03 02:53:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:53:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:53:08,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:53:08,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:53:08,762 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:53:08,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:53:08,762 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:53:08,762 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:53:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:53:08,764 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:53:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:53:08,765 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:53:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:53:08,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:53:08,767 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:53:08,768 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:53:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:53:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:53:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:53:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:53:08,775 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:53:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:53:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:53:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:53:08,781 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:53:08,782 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:53:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:53:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:53:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:53:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:53:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:53:08,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:53:08,789 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:53:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:53:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:53:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:53:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:53:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:53:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:53:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:53:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:53:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:53:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:53:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:53:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-03 02:53:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-03 02:53:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:53:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:53:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:53:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:53:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:53:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:53:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:53:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:53:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:53:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:53:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:53:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:53:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:53:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:53:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:53:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:53:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:53:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:53:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-03 02:53:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:53:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:53:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:53:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:53:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:53:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:53:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:53:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-03 02:53:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-03 02:53:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-03 02:53:08,801 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-03 02:53:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-03 02:53:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:53:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:53:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:53:08,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:53:11,079 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:53:11,080 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:53:11,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:11 BoogieIcfgContainer [2019-10-03 02:53:11,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:53:11,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:53:11,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:53:11,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:53:11,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:53:07" (1/3) ... [2019-10-03 02:53:11,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1473c18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:11, skipping insertion in model container [2019-10-03 02:53:11,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:53:08" (2/3) ... [2019-10-03 02:53:11,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1473c18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:53:11, skipping insertion in model container [2019-10-03 02:53:11,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:53:11" (3/3) ... [2019-10-03 02:53:11,094 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2019-10-03 02:53:11,108 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:53:11,128 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:53:11,147 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:53:11,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:53:11,181 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:53:11,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:53:11,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:53:11,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:53:11,182 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:53:11,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:53:11,182 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:53:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states. [2019-10-03 02:53:11,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-03 02:53:11,261 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:11,263 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:11,267 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:11,278 INFO L82 PathProgramCache]: Analyzing trace with hash -463084793, now seen corresponding path program 1 times [2019-10-03 02:53:11,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:11,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:11,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:11,359 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:11,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:11,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:53:11,913 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:11,918 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:11,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:11,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:11,936 INFO L87 Difference]: Start difference. First operand 482 states. Second operand 2 states. [2019-10-03 02:53:11,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:11,983 INFO L93 Difference]: Finished difference Result 446 states and 590 transitions. [2019-10-03 02:53:11,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:11,984 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 148 [2019-10-03 02:53:11,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:12,006 INFO L225 Difference]: With dead ends: 446 [2019-10-03 02:53:12,006 INFO L226 Difference]: Without dead ends: 437 [2019-10-03 02:53:12,008 INFO L640 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 [2019-10-03 02:53:12,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-10-03 02:53:12,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2019-10-03 02:53:12,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-03 02:53:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 579 transitions. [2019-10-03 02:53:12,107 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 579 transitions. Word has length 148 [2019-10-03 02:53:12,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:12,109 INFO L475 AbstractCegarLoop]: Abstraction has 437 states and 579 transitions. [2019-10-03 02:53:12,109 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:12,109 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 579 transitions. [2019-10-03 02:53:12,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-03 02:53:12,113 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:12,115 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:12,119 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:12,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:12,120 INFO L82 PathProgramCache]: Analyzing trace with hash -348931153, now seen corresponding path program 1 times [2019-10-03 02:53:12,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:12,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:12,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,129 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:12,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:12,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:12,485 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:12,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:12,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:12,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:12,488 INFO L87 Difference]: Start difference. First operand 437 states and 579 transitions. Second operand 3 states. [2019-10-03 02:53:12,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:12,550 INFO L93 Difference]: Finished difference Result 440 states and 582 transitions. [2019-10-03 02:53:12,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:12,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-03 02:53:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:12,558 INFO L225 Difference]: With dead ends: 440 [2019-10-03 02:53:12,558 INFO L226 Difference]: Without dead ends: 440 [2019-10-03 02:53:12,559 INFO L640 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 [2019-10-03 02:53:12,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-03 02:53:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2019-10-03 02:53:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2019-10-03 02:53:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2019-10-03 02:53:12,601 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 149 [2019-10-03 02:53:12,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:12,602 INFO L475 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2019-10-03 02:53:12,602 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2019-10-03 02:53:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-03 02:53:12,605 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:12,606 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:12,606 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:12,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:12,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1648155391, now seen corresponding path program 1 times [2019-10-03 02:53:12,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:12,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:12,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,612 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:12,792 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:12,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:12,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:12,794 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:12,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:12,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:12,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:12,800 INFO L87 Difference]: Start difference. First operand 439 states and 581 transitions. Second operand 3 states. [2019-10-03 02:53:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:12,845 INFO L93 Difference]: Finished difference Result 480 states and 651 transitions. [2019-10-03 02:53:12,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:12,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-03 02:53:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:12,853 INFO L225 Difference]: With dead ends: 480 [2019-10-03 02:53:12,853 INFO L226 Difference]: Without dead ends: 480 [2019-10-03 02:53:12,854 INFO L640 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 [2019-10-03 02:53:12,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2019-10-03 02:53:12,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 479. [2019-10-03 02:53:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2019-10-03 02:53:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 650 transitions. [2019-10-03 02:53:12,891 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 650 transitions. Word has length 159 [2019-10-03 02:53:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:12,892 INFO L475 AbstractCegarLoop]: Abstraction has 479 states and 650 transitions. [2019-10-03 02:53:12,892 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 650 transitions. [2019-10-03 02:53:12,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-03 02:53:12,899 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:12,900 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:12,900 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:12,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:12,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1008974663, now seen corresponding path program 1 times [2019-10-03 02:53:12,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:12,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:12,906 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:13,110 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:13,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:13,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:13,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:13,112 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:13,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:13,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:13,113 INFO L87 Difference]: Start difference. First operand 479 states and 650 transitions. Second operand 3 states. [2019-10-03 02:53:13,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:13,145 INFO L93 Difference]: Finished difference Result 557 states and 783 transitions. [2019-10-03 02:53:13,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:13,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-03 02:53:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:13,155 INFO L225 Difference]: With dead ends: 557 [2019-10-03 02:53:13,155 INFO L226 Difference]: Without dead ends: 557 [2019-10-03 02:53:13,156 INFO L640 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 [2019-10-03 02:53:13,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2019-10-03 02:53:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 556. [2019-10-03 02:53:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-10-03 02:53:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 782 transitions. [2019-10-03 02:53:13,184 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 782 transitions. Word has length 160 [2019-10-03 02:53:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:13,187 INFO L475 AbstractCegarLoop]: Abstraction has 556 states and 782 transitions. [2019-10-03 02:53:13,187 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:13,187 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 782 transitions. [2019-10-03 02:53:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-03 02:53:13,198 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:13,198 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:13,198 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:13,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:13,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1166153695, now seen corresponding path program 1 times [2019-10-03 02:53:13,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:13,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:13,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,207 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:13,444 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:13,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:13,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:13,445 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:13,446 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:13,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:13,447 INFO L87 Difference]: Start difference. First operand 556 states and 782 transitions. Second operand 3 states. [2019-10-03 02:53:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:13,486 INFO L93 Difference]: Finished difference Result 705 states and 1035 transitions. [2019-10-03 02:53:13,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:13,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-03 02:53:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:13,494 INFO L225 Difference]: With dead ends: 705 [2019-10-03 02:53:13,495 INFO L226 Difference]: Without dead ends: 705 [2019-10-03 02:53:13,495 INFO L640 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 [2019-10-03 02:53:13,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-10-03 02:53:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 704. [2019-10-03 02:53:13,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-10-03 02:53:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1034 transitions. [2019-10-03 02:53:13,535 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1034 transitions. Word has length 161 [2019-10-03 02:53:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:13,536 INFO L475 AbstractCegarLoop]: Abstraction has 704 states and 1034 transitions. [2019-10-03 02:53:13,537 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1034 transitions. [2019-10-03 02:53:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-03 02:53:13,543 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:13,544 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:13,546 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:13,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1633120217, now seen corresponding path program 1 times [2019-10-03 02:53:13,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:13,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:13,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,553 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-03 02:53:13,779 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:13,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:53:13,780 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:13,781 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:53:13,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:53:13,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:53:13,782 INFO L87 Difference]: Start difference. First operand 704 states and 1034 transitions. Second operand 3 states. [2019-10-03 02:53:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:13,818 INFO L93 Difference]: Finished difference Result 989 states and 1515 transitions. [2019-10-03 02:53:13,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:53:13,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-03 02:53:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:13,826 INFO L225 Difference]: With dead ends: 989 [2019-10-03 02:53:13,826 INFO L226 Difference]: Without dead ends: 989 [2019-10-03 02:53:13,827 INFO L640 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 [2019-10-03 02:53:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2019-10-03 02:53:13,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 988. [2019-10-03 02:53:13,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2019-10-03 02:53:13,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1514 transitions. [2019-10-03 02:53:13,863 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1514 transitions. Word has length 162 [2019-10-03 02:53:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:13,866 INFO L475 AbstractCegarLoop]: Abstraction has 988 states and 1514 transitions. [2019-10-03 02:53:13,867 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:53:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1514 transitions. [2019-10-03 02:53:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-03 02:53:13,873 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:13,873 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:13,874 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:13,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:13,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1343280992, now seen corresponding path program 1 times [2019-10-03 02:53:13,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:13,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:13,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:13,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:14,179 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:14,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:14,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:53:14,180 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:14,181 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:53:14,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:53:14,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:53:14,181 INFO L87 Difference]: Start difference. First operand 988 states and 1514 transitions. Second operand 7 states. [2019-10-03 02:53:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:16,718 INFO L93 Difference]: Finished difference Result 1198 states and 1777 transitions. [2019-10-03 02:53:16,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:53:16,719 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2019-10-03 02:53:16,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:16,726 INFO L225 Difference]: With dead ends: 1198 [2019-10-03 02:53:16,726 INFO L226 Difference]: Without dead ends: 1196 [2019-10-03 02:53:16,727 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:16,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2019-10-03 02:53:16,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1187. [2019-10-03 02:53:16,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1187 states. [2019-10-03 02:53:16,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1766 transitions. [2019-10-03 02:53:16,766 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1766 transitions. Word has length 165 [2019-10-03 02:53:16,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:16,767 INFO L475 AbstractCegarLoop]: Abstraction has 1187 states and 1766 transitions. [2019-10-03 02:53:16,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:53:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1766 transitions. [2019-10-03 02:53:16,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-03 02:53:16,772 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:16,772 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:16,772 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:16,773 INFO L82 PathProgramCache]: Analyzing trace with hash 217268504, now seen corresponding path program 1 times [2019-10-03 02:53:16,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:16,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:16,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:16,777 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:17,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:17,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-03 02:53:17,129 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:17,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-03 02:53:17,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-03 02:53:17,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-03 02:53:17,131 INFO L87 Difference]: Start difference. First operand 1187 states and 1766 transitions. Second operand 16 states. [2019-10-03 02:53:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:17,550 INFO L93 Difference]: Finished difference Result 1245 states and 1839 transitions. [2019-10-03 02:53:17,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:53:17,550 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 166 [2019-10-03 02:53:17,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:17,559 INFO L225 Difference]: With dead ends: 1245 [2019-10-03 02:53:17,559 INFO L226 Difference]: Without dead ends: 1219 [2019-10-03 02:53:17,562 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-03 02:53:17,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2019-10-03 02:53:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1215. [2019-10-03 02:53:17,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1215 states. [2019-10-03 02:53:17,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1215 states to 1215 states and 1801 transitions. [2019-10-03 02:53:17,616 INFO L78 Accepts]: Start accepts. Automaton has 1215 states and 1801 transitions. Word has length 166 [2019-10-03 02:53:17,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:17,617 INFO L475 AbstractCegarLoop]: Abstraction has 1215 states and 1801 transitions. [2019-10-03 02:53:17,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-03 02:53:17,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1215 states and 1801 transitions. [2019-10-03 02:53:17,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-03 02:53:17,623 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:17,623 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:17,623 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:17,624 INFO L82 PathProgramCache]: Analyzing trace with hash 138441481, now seen corresponding path program 1 times [2019-10-03 02:53:17,624 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:17,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:17,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:17,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:17,816 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-03 02:53:17,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:17,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:53:17,817 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:17,817 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:17,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:17,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:53:17,818 INFO L87 Difference]: Start difference. First operand 1215 states and 1801 transitions. Second operand 8 states. [2019-10-03 02:53:18,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:18,769 INFO L93 Difference]: Finished difference Result 1671 states and 2385 transitions. [2019-10-03 02:53:18,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-03 02:53:18,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2019-10-03 02:53:18,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:18,782 INFO L225 Difference]: With dead ends: 1671 [2019-10-03 02:53:18,782 INFO L226 Difference]: Without dead ends: 1669 [2019-10-03 02:53:18,783 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:53:18,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2019-10-03 02:53:18,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1656. [2019-10-03 02:53:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1656 states. [2019-10-03 02:53:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1656 states to 1656 states and 2369 transitions. [2019-10-03 02:53:18,852 INFO L78 Accepts]: Start accepts. Automaton has 1656 states and 2369 transitions. Word has length 175 [2019-10-03 02:53:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:18,853 INFO L475 AbstractCegarLoop]: Abstraction has 1656 states and 2369 transitions. [2019-10-03 02:53:18,853 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1656 states and 2369 transitions. [2019-10-03 02:53:18,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-03 02:53:18,861 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:18,862 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:18,862 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:18,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:18,863 INFO L82 PathProgramCache]: Analyzing trace with hash -868594112, now seen corresponding path program 1 times [2019-10-03 02:53:18,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:18,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:18,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:18,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:18,867 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:19,181 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:19,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:53:19,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-03 02:53:19,182 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:19,184 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-03 02:53:19,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-03 02:53:19,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-10-03 02:53:19,184 INFO L87 Difference]: Start difference. First operand 1656 states and 2369 transitions. Second operand 15 states. [2019-10-03 02:53:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:19,758 INFO L93 Difference]: Finished difference Result 1655 states and 2365 transitions. [2019-10-03 02:53:19,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:53:19,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 176 [2019-10-03 02:53:19,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:19,769 INFO L225 Difference]: With dead ends: 1655 [2019-10-03 02:53:19,769 INFO L226 Difference]: Without dead ends: 1655 [2019-10-03 02:53:19,770 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-10-03 02:53:19,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2019-10-03 02:53:19,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1654. [2019-10-03 02:53:19,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2019-10-03 02:53:19,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 2364 transitions. [2019-10-03 02:53:19,850 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 2364 transitions. Word has length 176 [2019-10-03 02:53:19,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:19,851 INFO L475 AbstractCegarLoop]: Abstraction has 1654 states and 2364 transitions. [2019-10-03 02:53:19,851 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-03 02:53:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 2364 transitions. [2019-10-03 02:53:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-03 02:53:19,859 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:19,860 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:19,860 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:19,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:19,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1230241458, now seen corresponding path program 2 times [2019-10-03 02:53:19,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:19,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:19,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:53:19,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:19,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:20,124 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:20,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:20,125 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:20,125 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-10-03 02:53:20,127 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-10-03 02:53:20,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:20,127 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-03 02:53:20,251 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-03 02:53:20,251 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-10-03 02:53:20,553 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-03 02:53:20,554 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-03 02:53:20,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 1924 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-03 02:53:20,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-03 02:53:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-03 02:53:20,843 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-03 02:53:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-10-03 02:53:21,367 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:21,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-03 02:53:21,367 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:21,368 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:53:21,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:53:21,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-03 02:53:21,371 INFO L87 Difference]: Start difference. First operand 1654 states and 2364 transitions. Second operand 8 states. [2019-10-03 02:53:22,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:22,260 INFO L93 Difference]: Finished difference Result 3266 states and 4726 transitions. [2019-10-03 02:53:22,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-03 02:53:22,260 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2019-10-03 02:53:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:22,282 INFO L225 Difference]: With dead ends: 3266 [2019-10-03 02:53:22,282 INFO L226 Difference]: Without dead ends: 3264 [2019-10-03 02:53:22,283 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 341 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-10-03 02:53:22,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3264 states. [2019-10-03 02:53:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3264 to 3255. [2019-10-03 02:53:22,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2019-10-03 02:53:22,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 4715 transitions. [2019-10-03 02:53:22,435 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 4715 transitions. Word has length 176 [2019-10-03 02:53:22,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:22,436 INFO L475 AbstractCegarLoop]: Abstraction has 3255 states and 4715 transitions. [2019-10-03 02:53:22,436 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:53:22,436 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 4715 transitions. [2019-10-03 02:53:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-03 02:53:22,455 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:53:22,455 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:53:22,456 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:53:22,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1065000320, now seen corresponding path program 1 times [2019-10-03 02:53:22,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:53:22,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,461 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-03 02:53:22,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:53:22,462 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:53:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:53:22,738 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-03 02:53:22,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:53:22,738 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:53:22,739 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2019-10-03 02:53:22,742 INFO L207 CegarAbsIntRunner]: [59], [62], [63], [66], [72], [73], [76], [85], [120], [149], [152], [153], [154], [156], [266], [269], [270], [314], [316], [330], [333], [342], [345], [347], [348], [351], [361], [435], [620], [622], [623], [624], [660], [663], [677], [706], [709], [715], [716], [717], [718], [735], [737], [741], [744], [768], [772], [775], [783], [786], [813], [822], [826], [828], [830], [833], [840], [847], [850], [852], [986], [989], [1003], [1060], [1062], [1065], [1067], [1070], [1130], [1202], [1206], [1217], [1220], [1259], [1261], [1374], [1377], [1379], [1382], [1391], [1397], [1400], [1409], [1463], [1466], [1475], [1598], [1600], [1602], [1604], [1605], [1638], [1648], [1649], [1650], [1651], [1652], [1653], [1656], [1657], [1658], [1659], [1672], [1673], [1674], [1675], [1676], [1682], [1683], [1708], [1709], [1726], [1727], [1740], [1746], [1747], [1748], [1749], [1750], [1751], [1752], [1753], [1754], [1755], [1756], [1757], [1758], [1759], [1760], [1762], [1763], [1764], [1765], [1780], [1781], [1796], [1798], [1799], [1800], [1801], [1802], [1804], [1805], [1806], [1808], [1809], [1810], [1811], [1812], [1813], [1814], [1826], [1827], [1828], [1829], [1830], [1831], [1832], [1833], [1834] [2019-10-03 02:53:22,796 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:53:22,796 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:53:22,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:53:22,974 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 290 root evaluator evaluations with a maximum evaluation depth of 0. Performed 290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 364 variables. [2019-10-03 02:53:22,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:53:22,979 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:53:23,128 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:53:23,128 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:53:23,140 INFO L420 sIntCurrentIteration]: We unified 176 AI predicates to 176 [2019-10-03 02:53:23,140 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:53:23,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:53:23,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:53:23,142 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:53:23,143 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:53:23,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:53:23,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:23,144 INFO L87 Difference]: Start difference. First operand 3255 states and 4715 transitions. Second operand 2 states. [2019-10-03 02:53:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:53:23,145 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:53:23,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:53:23,145 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-03 02:53:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:53:23,145 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:53:23,145 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:53:23,146 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:53:23,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:53:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:53:23,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:53:23,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:53:23,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 177 [2019-10-03 02:53:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:53:23,147 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:53:23,147 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:53:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:53:23,148 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:53:23,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:53:23 BoogieIcfgContainer [2019-10-03 02:53:23,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:53:23,159 INFO L168 Benchmark]: Toolchain (without parser) took 15864.34 ms. Allocated memory was 138.9 MB in the beginning and 553.1 MB in the end (delta: 414.2 MB). Free memory was 83.7 MB in the beginning and 390.6 MB in the end (delta: -306.9 MB). Peak memory consumption was 107.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:23,159 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:53:23,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1180.36 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 83.7 MB in the beginning and 139.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:23,165 INFO L168 Benchmark]: Boogie Preprocessor took 152.91 ms. Allocated memory is still 202.9 MB. Free memory was 139.4 MB in the beginning and 130.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:23,172 INFO L168 Benchmark]: RCFGBuilder took 2455.81 ms. Allocated memory was 202.9 MB in the beginning and 264.2 MB in the end (delta: 61.3 MB). Free memory was 130.6 MB in the beginning and 178.3 MB in the end (delta: -47.7 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:23,173 INFO L168 Benchmark]: TraceAbstraction took 12070.31 ms. Allocated memory was 264.2 MB in the beginning and 553.1 MB in the end (delta: 288.9 MB). Free memory was 178.3 MB in the beginning and 390.6 MB in the end (delta: -212.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:53:23,183 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.9 MB. Free memory is still 104.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1180.36 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 83.7 MB in the beginning and 139.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 152.91 ms. Allocated memory is still 202.9 MB. Free memory was 139.4 MB in the beginning and 130.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2455.81 ms. Allocated memory was 202.9 MB in the beginning and 264.2 MB in the end (delta: 61.3 MB). Free memory was 130.6 MB in the beginning and 178.3 MB in the end (delta: -47.7 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12070.31 ms. Allocated memory was 264.2 MB in the beginning and 553.1 MB in the end (delta: 288.9 MB). Free memory was 178.3 MB in the beginning and 390.6 MB in the end (delta: -212.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2872]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 111 procedures, 749 locations, 1 error locations. SAFE Result, 11.9s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6607 SDtfs, 2317 SDslu, 25051 SDs, 0 SdLazy, 3456 SolverSat, 412 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 647 GetRequests, 546 SyntacticMatches, 2 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3255occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.153409090909091 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 41 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 2150 NumberOfCodeBlocks, 2050 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2312 ConstructedInterpolants, 0 QuantifiedInterpolants, 536159 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1924 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 14 InterpolantComputations, 12 PerfectInterpolantSequences, 466/472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...