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_spec0_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:11,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:11,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:11,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:11,269 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:11,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:11,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:11,273 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:11,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:11,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:11,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:11,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:11,278 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:11,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:11,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:11,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:11,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:11,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:11,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:11,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:11,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:11,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:11,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:11,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:11,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:11,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:11,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:11,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:11,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:11,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:11,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:11,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:11,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:11,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:11,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:11,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:11,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:11,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:11,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:11,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:11,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:11,306 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 [2019-09-20 13:29:11,321 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:11,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:11,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:11,322 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:11,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:11,323 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:11,323 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:11,323 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:11,323 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:11,323 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:11,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:11,324 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:11,325 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:11,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:11,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:11,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:11,326 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:11,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:11,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:11,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:11,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:11,327 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:11,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:11,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:11,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:11,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:11,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:11,373 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:11,374 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:11,375 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:11,376 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product05.cil.c [2019-09-20 13:29:11,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6a8fef0/83b254ceb38947ae86b40d49d015bfed/FLAGec58b9c34 [2019-09-20 13:29:11,973 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:11,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product05.cil.c [2019-09-20 13:29:12,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6a8fef0/83b254ceb38947ae86b40d49d015bfed/FLAGec58b9c34 [2019-09-20 13:29:12,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6a8fef0/83b254ceb38947ae86b40d49d015bfed [2019-09-20 13:29:12,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:12,289 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:12,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:12,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:12,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:12,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aceb178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:12, skipping insertion in model container [2019-09-20 13:29:12,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:12" (1/1) ... [2019-09-20 13:29:12,307 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:12,397 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:13,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:13,107 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:13,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:13,318 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:13,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13 WrapperNode [2019-09-20 13:29:13,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:13,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:13,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:13,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:13,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... [2019-09-20 13:29:13,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:13,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:13,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:13,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:13,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:13,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:13,643 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:29:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:13,644 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:13,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:13,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:13,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:13,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:13,649 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:13,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:13,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:13,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:13,653 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:13,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:13,656 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:13,657 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:13,658 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2019-09-20 13:29:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:13,659 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:13,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:29:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:13,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:13,662 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:13,663 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:13,664 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:13,665 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:13,666 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:29:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:13,673 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:13,674 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:13,677 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:13,678 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:13,679 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:13,682 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:13,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:13,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:13,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:13,692 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:13,696 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:13,697 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2019-09-20 13:29:13,698 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:13,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:13,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:15,546 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:15,546 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:15,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:15 BoogieIcfgContainer [2019-09-20 13:29:15,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:15,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:15,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:15,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:12" (1/3) ... [2019-09-20 13:29:15,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c9ac7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:15, skipping insertion in model container [2019-09-20 13:29:15,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:13" (2/3) ... [2019-09-20 13:29:15,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c9ac7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:15, skipping insertion in model container [2019-09-20 13:29:15,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:15" (3/3) ... [2019-09-20 13:29:15,558 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product05.cil.c [2019-09-20 13:29:15,569 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:15,588 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:15,605 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:15,637 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:15,638 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:15,638 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:15,638 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:15,638 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:15,638 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:15,638 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:15,639 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2019-09-20 13:29:15,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-09-20 13:29:15,679 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:15,680 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:15,683 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:15,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:15,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1049068692, now seen corresponding path program 1 times [2019-09-20 13:29:15,693 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:15,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:15,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:15,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:16,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:16,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:16,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:16,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:16,240 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:16,249 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:16,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:16,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:16,268 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 2 states. [2019-09-20 13:29:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:16,328 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2019-09-20 13:29:16,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:16,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 130 [2019-09-20 13:29:16,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:16,350 INFO L225 Difference]: With dead ends: 224 [2019-09-20 13:29:16,350 INFO L226 Difference]: Without dead ends: 215 [2019-09-20 13:29:16,352 INFO L636 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 [2019-09-20 13:29:16,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-09-20 13:29:16,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-09-20 13:29:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-09-20 13:29:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2019-09-20 13:29:16,414 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 130 [2019-09-20 13:29:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:16,416 INFO L475 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2019-09-20 13:29:16,416 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2019-09-20 13:29:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-09-20 13:29:16,421 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:16,421 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:16,422 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1412746491, now seen corresponding path program 1 times [2019-09-20 13:29:16,422 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:16,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:16,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,427 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:16,608 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:16,609 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:16,609 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:16,609 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:16,612 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:16,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:16,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:16,614 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand 3 states. [2019-09-20 13:29:16,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:16,650 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions. [2019-09-20 13:29:16,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:16,653 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-09-20 13:29:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:16,659 INFO L225 Difference]: With dead ends: 218 [2019-09-20 13:29:16,659 INFO L226 Difference]: Without dead ends: 218 [2019-09-20 13:29:16,661 INFO L636 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 [2019-09-20 13:29:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-09-20 13:29:16,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2019-09-20 13:29:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-20 13:29:16,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 269 transitions. [2019-09-20 13:29:16,698 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 269 transitions. Word has length 131 [2019-09-20 13:29:16,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:16,699 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 269 transitions. [2019-09-20 13:29:16,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:16,699 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 269 transitions. [2019-09-20 13:29:16,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-20 13:29:16,702 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:16,702 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:16,703 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:16,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:16,704 INFO L82 PathProgramCache]: Analyzing trace with hash 458190205, now seen corresponding path program 1 times [2019-09-20 13:29:16,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:16,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:16,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:16,710 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:16,994 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:16,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:16,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:16,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:16,997 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:16,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:16,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:16,997 INFO L87 Difference]: Start difference. First operand 217 states and 269 transitions. Second operand 6 states. [2019-09-20 13:29:17,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:17,371 INFO L93 Difference]: Finished difference Result 394 states and 495 transitions. [2019-09-20 13:29:17,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:17,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2019-09-20 13:29:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:17,378 INFO L225 Difference]: With dead ends: 394 [2019-09-20 13:29:17,378 INFO L226 Difference]: Without dead ends: 394 [2019-09-20 13:29:17,379 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:17,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-09-20 13:29:17,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 385. [2019-09-20 13:29:17,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-09-20 13:29:17,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 487 transitions. [2019-09-20 13:29:17,426 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 487 transitions. Word has length 136 [2019-09-20 13:29:17,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:17,428 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 487 transitions. [2019-09-20 13:29:17,428 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:17,429 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 487 transitions. [2019-09-20 13:29:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-09-20 13:29:17,435 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:17,435 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:17,436 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:17,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1180502468, now seen corresponding path program 1 times [2019-09-20 13:29:17,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:17,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:17,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:17,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:17,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:17,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:17,668 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:17,669 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:17,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:17,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:17,669 INFO L87 Difference]: Start difference. First operand 385 states and 487 transitions. Second operand 6 states. [2019-09-20 13:29:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,070 INFO L93 Difference]: Finished difference Result 744 states and 947 transitions. [2019-09-20 13:29:18,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:18,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2019-09-20 13:29:18,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,086 INFO L225 Difference]: With dead ends: 744 [2019-09-20 13:29:18,086 INFO L226 Difference]: Without dead ends: 744 [2019-09-20 13:29:18,087 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:18,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2019-09-20 13:29:18,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 721. [2019-09-20 13:29:18,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2019-09-20 13:29:18,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 925 transitions. [2019-09-20 13:29:18,179 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 925 transitions. Word has length 137 [2019-09-20 13:29:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,180 INFO L475 AbstractCegarLoop]: Abstraction has 721 states and 925 transitions. [2019-09-20 13:29:18,181 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 925 transitions. [2019-09-20 13:29:18,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-20 13:29:18,189 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,190 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:18,190 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1759911719, now seen corresponding path program 1 times [2019-09-20 13:29:18,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,409 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:18,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:18,410 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,411 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:18,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:18,412 INFO L87 Difference]: Start difference. First operand 721 states and 925 transitions. Second operand 6 states. [2019-09-20 13:29:18,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,733 INFO L93 Difference]: Finished difference Result 1394 states and 1796 transitions. [2019-09-20 13:29:18,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:18,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2019-09-20 13:29:18,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,742 INFO L225 Difference]: With dead ends: 1394 [2019-09-20 13:29:18,742 INFO L226 Difference]: Without dead ends: 1300 [2019-09-20 13:29:18,743 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2019-09-20 13:29:18,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1259. [2019-09-20 13:29:18,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1259 states. [2019-09-20 13:29:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1646 transitions. [2019-09-20 13:29:18,800 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1646 transitions. Word has length 138 [2019-09-20 13:29:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,800 INFO L475 AbstractCegarLoop]: Abstraction has 1259 states and 1646 transitions. [2019-09-20 13:29:18,801 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1646 transitions. [2019-09-20 13:29:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-20 13:29:18,805 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,806 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:18,806 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1907188567, now seen corresponding path program 1 times [2019-09-20 13:29:18,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:18,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:18,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:18,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:18,907 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:18,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:18,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:18,907 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:18,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:18,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:18,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:18,909 INFO L87 Difference]: Start difference. First operand 1259 states and 1646 transitions. Second operand 3 states. [2019-09-20 13:29:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:18,930 INFO L93 Difference]: Finished difference Result 1474 states and 2046 transitions. [2019-09-20 13:29:18,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:18,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-09-20 13:29:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:18,939 INFO L225 Difference]: With dead ends: 1474 [2019-09-20 13:29:18,939 INFO L226 Difference]: Without dead ends: 1474 [2019-09-20 13:29:18,940 INFO L636 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 [2019-09-20 13:29:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-09-20 13:29:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1467. [2019-09-20 13:29:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1467 states. [2019-09-20 13:29:18,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2039 transitions. [2019-09-20 13:29:18,990 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2039 transitions. Word has length 150 [2019-09-20 13:29:18,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:18,991 INFO L475 AbstractCegarLoop]: Abstraction has 1467 states and 2039 transitions. [2019-09-20 13:29:18,991 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:18,992 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2039 transitions. [2019-09-20 13:29:18,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-09-20 13:29:18,996 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:18,996 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:18,997 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:18,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:18,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1697071544, now seen corresponding path program 1 times [2019-09-20 13:29:18,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,002 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:19,195 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,196 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,196 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,198 INFO L87 Difference]: Start difference. First operand 1467 states and 2039 transitions. Second operand 3 states. [2019-09-20 13:29:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,228 INFO L93 Difference]: Finished difference Result 1882 states and 2808 transitions. [2019-09-20 13:29:19,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-09-20 13:29:19,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,242 INFO L225 Difference]: With dead ends: 1882 [2019-09-20 13:29:19,242 INFO L226 Difference]: Without dead ends: 1882 [2019-09-20 13:29:19,243 INFO L636 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 [2019-09-20 13:29:19,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2019-09-20 13:29:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1875. [2019-09-20 13:29:19,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2019-09-20 13:29:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2801 transitions. [2019-09-20 13:29:19,328 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2801 transitions. Word has length 151 [2019-09-20 13:29:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,329 INFO L475 AbstractCegarLoop]: Abstraction has 1875 states and 2801 transitions. [2019-09-20 13:29:19,329 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2801 transitions. [2019-09-20 13:29:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-20 13:29:19,335 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,335 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:19,335 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1599485913, now seen corresponding path program 1 times [2019-09-20 13:29:19,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,345 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,460 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:19,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,461 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,462 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,463 INFO L87 Difference]: Start difference. First operand 1875 states and 2801 transitions. Second operand 3 states. [2019-09-20 13:29:19,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,501 INFO L93 Difference]: Finished difference Result 2682 states and 4284 transitions. [2019-09-20 13:29:19,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-20 13:29:19,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,519 INFO L225 Difference]: With dead ends: 2682 [2019-09-20 13:29:19,519 INFO L226 Difference]: Without dead ends: 2682 [2019-09-20 13:29:19,520 INFO L636 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 [2019-09-20 13:29:19,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2019-09-20 13:29:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2675. [2019-09-20 13:29:19,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2019-09-20 13:29:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4277 transitions. [2019-09-20 13:29:19,611 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4277 transitions. Word has length 152 [2019-09-20 13:29:19,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,612 INFO L475 AbstractCegarLoop]: Abstraction has 2675 states and 4277 transitions. [2019-09-20 13:29:19,612 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4277 transitions. [2019-09-20 13:29:19,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-09-20 13:29:19,620 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:19,621 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:19,621 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:19,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:19,621 INFO L82 PathProgramCache]: Analyzing trace with hash -9361978, now seen corresponding path program 1 times [2019-09-20 13:29:19,621 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:19,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:19,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:19,628 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:19,727 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:19,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:19,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:19,728 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:19,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:19,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:19,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:19,729 INFO L87 Difference]: Start difference. First operand 2675 states and 4277 transitions. Second operand 3 states. [2019-09-20 13:29:19,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:19,774 INFO L93 Difference]: Finished difference Result 4250 states and 7140 transitions. [2019-09-20 13:29:19,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:19,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-09-20 13:29:19,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:19,804 INFO L225 Difference]: With dead ends: 4250 [2019-09-20 13:29:19,804 INFO L226 Difference]: Without dead ends: 4250 [2019-09-20 13:29:19,805 INFO L636 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 [2019-09-20 13:29:19,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2019-09-20 13:29:19,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 4243. [2019-09-20 13:29:19,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2019-09-20 13:29:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 7133 transitions. [2019-09-20 13:29:19,942 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 7133 transitions. Word has length 153 [2019-09-20 13:29:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:19,943 INFO L475 AbstractCegarLoop]: Abstraction has 4243 states and 7133 transitions. [2019-09-20 13:29:19,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 7133 transitions. [2019-09-20 13:29:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-20 13:29:20,011 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:20,012 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:20,012 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 524262491, now seen corresponding path program 1 times [2019-09-20 13:29:20,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:20,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:20,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,017 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-20 13:29:20,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:20,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:20,113 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:20,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:20,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:20,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:20,115 INFO L87 Difference]: Start difference. First operand 4243 states and 7133 transitions. Second operand 3 states. [2019-09-20 13:29:20,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:20,173 INFO L93 Difference]: Finished difference Result 7322 states and 12660 transitions. [2019-09-20 13:29:20,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:20,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-09-20 13:29:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:20,220 INFO L225 Difference]: With dead ends: 7322 [2019-09-20 13:29:20,220 INFO L226 Difference]: Without dead ends: 7322 [2019-09-20 13:29:20,221 INFO L636 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 [2019-09-20 13:29:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2019-09-20 13:29:20,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 7315. [2019-09-20 13:29:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7315 states. [2019-09-20 13:29:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 12653 transitions. [2019-09-20 13:29:20,431 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 12653 transitions. Word has length 154 [2019-09-20 13:29:20,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,431 INFO L475 AbstractCegarLoop]: Abstraction has 7315 states and 12653 transitions. [2019-09-20 13:29:20,431 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:20,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 12653 transitions. [2019-09-20 13:29:20,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-09-20 13:29:20,461 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:20,461 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:20,461 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:20,462 INFO L82 PathProgramCache]: Analyzing trace with hash -149754556, now seen corresponding path program 1 times [2019-09-20 13:29:20,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:20,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:20,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:20,466 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:20,694 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-20 13:29:20,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:20,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:20,695 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:20,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:20,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:20,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:20,696 INFO L87 Difference]: Start difference. First operand 7315 states and 12653 transitions. Second operand 8 states. [2019-09-20 13:29:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:20,772 INFO L93 Difference]: Finished difference Result 7312 states and 12644 transitions. [2019-09-20 13:29:20,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:20,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2019-09-20 13:29:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:20,774 INFO L225 Difference]: With dead ends: 7312 [2019-09-20 13:29:20,774 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:20,775 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:20,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:20,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2019-09-20 13:29:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:20,776 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:20,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:20,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:20,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:20 BoogieIcfgContainer [2019-09-20 13:29:20,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:20,786 INFO L168 Benchmark]: Toolchain (without parser) took 8495.93 ms. Allocated memory was 132.1 MB in the beginning and 409.5 MB in the end (delta: 277.3 MB). Free memory was 85.2 MB in the beginning and 129.3 MB in the end (delta: -44.0 MB). Peak memory consumption was 233.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,787 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1029.62 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 85.0 MB in the beginning and 142.8 MB in the end (delta: -57.7 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,790 INFO L168 Benchmark]: Boogie Preprocessor took 223.49 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 134.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,796 INFO L168 Benchmark]: RCFGBuilder took 2004.40 ms. Allocated memory was 200.3 MB in the beginning and 266.9 MB in the end (delta: 66.6 MB). Free memory was 134.8 MB in the beginning and 218.3 MB in the end (delta: -83.5 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,797 INFO L168 Benchmark]: TraceAbstraction took 5232.09 ms. Allocated memory was 266.9 MB in the beginning and 409.5 MB in the end (delta: 142.6 MB). Free memory was 218.3 MB in the beginning and 129.3 MB in the end (delta: 89.0 MB). Peak memory consumption was 231.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:20,809 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1029.62 ms. Allocated memory was 132.1 MB in the beginning and 200.3 MB in the end (delta: 68.2 MB). Free memory was 85.0 MB in the beginning and 142.8 MB in the end (delta: -57.7 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 223.49 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 134.8 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2004.40 ms. Allocated memory was 200.3 MB in the beginning and 266.9 MB in the end (delta: 66.6 MB). Free memory was 134.8 MB in the beginning and 218.3 MB in the end (delta: -83.5 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5232.09 ms. Allocated memory was 266.9 MB in the beginning and 409.5 MB in the end (delta: 142.6 MB). Free memory was 218.3 MB in the beginning and 129.3 MB in the end (delta: 89.0 MB). Peak memory consumption was 231.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 197]: 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 91 procedures, 602 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3031 SDtfs, 900 SDslu, 6157 SDs, 0 SdLazy, 362 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7315occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 109 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1587 NumberOfCodeBlocks, 1587 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 276446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 238/238 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...