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 0.1.24-112bae1 [2019-09-10 02:36:39,581 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:36:39,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:36:39,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:36:39,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:36:39,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:36:39,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:36:39,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:36:39,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:36:39,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:36:39,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:36:39,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:36:39,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:36:39,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:36:39,607 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:36:39,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:36:39,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:36:39,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:36:39,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:36:39,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:36:39,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:36:39,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:36:39,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:36:39,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:36:39,619 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:36:39,620 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:36:39,620 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:36:39,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:36:39,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:36:39,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:36:39,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:36:39,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:36:39,624 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:36:39,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:36:39,625 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:36:39,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:36:39,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:36:39,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:36:39,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:36:39,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:36:39,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:36:39,629 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 [2019-09-10 02:36:39,644 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:36:39,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:36:39,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:36:39,645 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:36:39,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:36:39,646 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:36:39,646 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:36:39,646 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:36:39,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:36:39,647 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:36:39,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:36:39,648 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:36:39,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:36:39,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:36:39,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:36:39,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:36:39,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:36:39,649 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:36:39,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:36:39,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:36:39,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:36:39,650 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:36:39,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:36:39,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:36:39,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:36:39,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:36:39,651 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:36:39,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:36:39,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:36:39,651 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:36:39,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:36:39,695 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:36:39,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:36:39,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:36:39,701 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:36:39,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product05.cil.c [2019-09-10 02:36:39,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59621e349/60bd9a4934ea4ca2818db0fc5ca11dc7/FLAG7f8fe1e4d [2019-09-10 02:36:40,417 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:36:40,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product05.cil.c [2019-09-10 02:36:40,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59621e349/60bd9a4934ea4ca2818db0fc5ca11dc7/FLAG7f8fe1e4d [2019-09-10 02:36:40,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59621e349/60bd9a4934ea4ca2818db0fc5ca11dc7 [2019-09-10 02:36:40,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:36:40,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:36:40,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:36:40,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:36:40,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:36:40,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:36:40" (1/1) ... [2019-09-10 02:36:40,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e8182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:40, skipping insertion in model container [2019-09-10 02:36:40,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:36:40" (1/1) ... [2019-09-10 02:36:40,601 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:36:40,672 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:36:41,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:36:41,412 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:36:41,544 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:36:41,628 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:36:41,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41 WrapperNode [2019-09-10 02:36:41,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:36:41,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:36:41,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:36:41,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:36:41,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... [2019-09-10 02:36:41,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:36:41,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:36:41,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:36:41,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:36:41,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:36:41,886 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:36:41,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:36:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:36:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:36:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:36:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:36:41,888 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:36:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:36:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:36:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:36:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:36:41,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:36:41,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:36:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:36:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:36:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:36:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:36:41,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:36:41,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:36:41,893 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:36:41,894 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:36:41,895 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:36:41,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:36:41,897 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:36:41,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:36:41,899 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:36:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:36:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:36:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:36:41,900 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:36:41,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:36:41,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:36:41,902 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:36:41,903 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:36:41,904 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:36:41,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:36:41,906 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:36:41,907 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:36:41,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:36:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:36:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:36:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:36:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:36:41,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:36:41,910 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:36:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:36:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:36:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:36:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:36:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:36:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:36:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:36:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:36:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:36:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:36:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:36:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:36:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:36:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:36:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:36:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:36:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2019-09-10 02:36:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:36:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:36:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:36:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:36:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:36:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:36:43,731 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:36:43,731 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:36:43,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:36:43 BoogieIcfgContainer [2019-09-10 02:36:43,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:36:43,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:36:43,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:36:43,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:36:43,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:36:40" (1/3) ... [2019-09-10 02:36:43,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499680b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:36:43, skipping insertion in model container [2019-09-10 02:36:43,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:36:41" (2/3) ... [2019-09-10 02:36:43,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499680b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:36:43, skipping insertion in model container [2019-09-10 02:36:43,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:36:43" (3/3) ... [2019-09-10 02:36:43,744 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product05.cil.c [2019-09-10 02:36:43,757 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:36:43,772 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:36:43,792 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:36:43,841 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:36:43,841 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:36:43,842 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:36:43,842 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:36:43,842 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:36:43,842 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:36:43,842 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:36:43,842 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:36:43,873 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2019-09-10 02:36:43,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-09-10 02:36:43,901 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:43,903 INFO L399 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] [2019-09-10 02:36:43,908 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:43,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:43,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1049068692, now seen corresponding path program 1 times [2019-09-10 02:36:43,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:43,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:43,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:43,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:43,975 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:44,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:44,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:36:44,539 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:44,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:36:44,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:36:44,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:36:44,565 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 2 states. [2019-09-10 02:36:44,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:44,603 INFO L93 Difference]: Finished difference Result 224 states and 278 transitions. [2019-09-10 02:36:44,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:36:44,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 130 [2019-09-10 02:36:44,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:44,633 INFO L225 Difference]: With dead ends: 224 [2019-09-10 02:36:44,633 INFO L226 Difference]: Without dead ends: 215 [2019-09-10 02:36:44,637 INFO L628 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 [2019-09-10 02:36:44,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2019-09-10 02:36:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2019-09-10 02:36:44,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-09-10 02:36:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2019-09-10 02:36:44,758 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 130 [2019-09-10 02:36:44,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:44,760 INFO L475 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2019-09-10 02:36:44,760 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:36:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2019-09-10 02:36:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-09-10 02:36:44,772 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:44,773 INFO L399 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] [2019-09-10 02:36:44,775 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:44,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:44,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1412746491, now seen corresponding path program 1 times [2019-09-10 02:36:44,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:44,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:44,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:44,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:44,779 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:45,033 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:45,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:45,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:45,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:45,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:45,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:45,042 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand 3 states. [2019-09-10 02:36:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:45,101 INFO L93 Difference]: Finished difference Result 218 states and 270 transitions. [2019-09-10 02:36:45,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:45,103 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-09-10 02:36:45,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:45,107 INFO L225 Difference]: With dead ends: 218 [2019-09-10 02:36:45,107 INFO L226 Difference]: Without dead ends: 218 [2019-09-10 02:36:45,111 INFO L628 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 [2019-09-10 02:36:45,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-09-10 02:36:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2019-09-10 02:36:45,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-10 02:36:45,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 269 transitions. [2019-09-10 02:36:45,145 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 269 transitions. Word has length 131 [2019-09-10 02:36:45,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:45,146 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 269 transitions. [2019-09-10 02:36:45,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:45,146 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 269 transitions. [2019-09-10 02:36:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-10 02:36:45,148 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:45,149 INFO L399 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] [2019-09-10 02:36:45,149 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:45,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:45,150 INFO L82 PathProgramCache]: Analyzing trace with hash 458190205, now seen corresponding path program 1 times [2019-09-10 02:36:45,150 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:45,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:45,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:45,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:45,152 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-10 02:36:45,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:45,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:36:45,467 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:45,469 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:36:45,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:36:45,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:36:45,469 INFO L87 Difference]: Start difference. First operand 217 states and 269 transitions. Second operand 6 states. [2019-09-10 02:36:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:45,831 INFO L93 Difference]: Finished difference Result 394 states and 495 transitions. [2019-09-10 02:36:45,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:36:45,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 136 [2019-09-10 02:36:45,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:45,844 INFO L225 Difference]: With dead ends: 394 [2019-09-10 02:36:45,844 INFO L226 Difference]: Without dead ends: 394 [2019-09-10 02:36:45,845 INFO L628 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 [2019-09-10 02:36:45,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-09-10 02:36:45,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 385. [2019-09-10 02:36:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2019-09-10 02:36:45,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 487 transitions. [2019-09-10 02:36:45,898 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 487 transitions. Word has length 136 [2019-09-10 02:36:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:45,899 INFO L475 AbstractCegarLoop]: Abstraction has 385 states and 487 transitions. [2019-09-10 02:36:45,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:36:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 487 transitions. [2019-09-10 02:36:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-09-10 02:36:45,904 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:45,904 INFO L399 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] [2019-09-10 02:36:45,904 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:45,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:45,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1180502468, now seen corresponding path program 1 times [2019-09-10 02:36:45,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:45,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:45,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:45,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:45,907 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:46,091 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-10 02:36:46,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:46,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:36:46,091 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:46,092 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:36:46,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:36:46,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:36:46,093 INFO L87 Difference]: Start difference. First operand 385 states and 487 transitions. Second operand 6 states. [2019-09-10 02:36:46,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:46,443 INFO L93 Difference]: Finished difference Result 744 states and 947 transitions. [2019-09-10 02:36:46,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:36:46,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2019-09-10 02:36:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:46,450 INFO L225 Difference]: With dead ends: 744 [2019-09-10 02:36:46,451 INFO L226 Difference]: Without dead ends: 744 [2019-09-10 02:36:46,451 INFO L628 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 [2019-09-10 02:36:46,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2019-09-10 02:36:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 721. [2019-09-10 02:36:46,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 721 states. [2019-09-10 02:36:46,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 925 transitions. [2019-09-10 02:36:46,520 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 925 transitions. Word has length 137 [2019-09-10 02:36:46,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:46,521 INFO L475 AbstractCegarLoop]: Abstraction has 721 states and 925 transitions. [2019-09-10 02:36:46,522 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:36:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 925 transitions. [2019-09-10 02:36:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-10 02:36:46,527 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:46,527 INFO L399 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] [2019-09-10 02:36:46,528 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1759911719, now seen corresponding path program 1 times [2019-09-10 02:36:46,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:46,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:46,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:46,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:46,531 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:46,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-10 02:36:46,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:46,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:36:46,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:46,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:36:46,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:36:46,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:36:46,717 INFO L87 Difference]: Start difference. First operand 721 states and 925 transitions. Second operand 6 states. [2019-09-10 02:36:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:47,007 INFO L93 Difference]: Finished difference Result 1394 states and 1796 transitions. [2019-09-10 02:36:47,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:36:47,008 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2019-09-10 02:36:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:47,016 INFO L225 Difference]: With dead ends: 1394 [2019-09-10 02:36:47,016 INFO L226 Difference]: Without dead ends: 1300 [2019-09-10 02:36:47,017 INFO L628 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 [2019-09-10 02:36:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2019-09-10 02:36:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1259. [2019-09-10 02:36:47,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1259 states. [2019-09-10 02:36:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1646 transitions. [2019-09-10 02:36:47,071 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1646 transitions. Word has length 138 [2019-09-10 02:36:47,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:47,072 INFO L475 AbstractCegarLoop]: Abstraction has 1259 states and 1646 transitions. [2019-09-10 02:36:47,072 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:36:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1646 transitions. [2019-09-10 02:36:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-09-10 02:36:47,077 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:47,077 INFO L399 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] [2019-09-10 02:36:47,077 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:47,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:47,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1907188567, now seen corresponding path program 1 times [2019-09-10 02:36:47,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:47,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:47,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,080 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:47,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:47,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:47,190 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:47,190 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:47,190 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:47,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:47,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:47,191 INFO L87 Difference]: Start difference. First operand 1259 states and 1646 transitions. Second operand 3 states. [2019-09-10 02:36:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:47,215 INFO L93 Difference]: Finished difference Result 1474 states and 2046 transitions. [2019-09-10 02:36:47,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:47,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-09-10 02:36:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:47,263 INFO L225 Difference]: With dead ends: 1474 [2019-09-10 02:36:47,263 INFO L226 Difference]: Without dead ends: 1474 [2019-09-10 02:36:47,264 INFO L628 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 [2019-09-10 02:36:47,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2019-09-10 02:36:47,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1467. [2019-09-10 02:36:47,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1467 states. [2019-09-10 02:36:47,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2039 transitions. [2019-09-10 02:36:47,314 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2039 transitions. Word has length 150 [2019-09-10 02:36:47,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:47,315 INFO L475 AbstractCegarLoop]: Abstraction has 1467 states and 2039 transitions. [2019-09-10 02:36:47,315 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:47,315 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2039 transitions. [2019-09-10 02:36:47,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-09-10 02:36:47,320 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:47,320 INFO L399 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] [2019-09-10 02:36:47,321 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:47,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:47,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1697071544, now seen corresponding path program 1 times [2019-09-10 02:36:47,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:47,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:47,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,323 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:47,423 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:47,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:47,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:47,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:47,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:47,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:47,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:47,426 INFO L87 Difference]: Start difference. First operand 1467 states and 2039 transitions. Second operand 3 states. [2019-09-10 02:36:47,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:47,448 INFO L93 Difference]: Finished difference Result 1882 states and 2808 transitions. [2019-09-10 02:36:47,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:47,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 151 [2019-09-10 02:36:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:47,461 INFO L225 Difference]: With dead ends: 1882 [2019-09-10 02:36:47,461 INFO L226 Difference]: Without dead ends: 1882 [2019-09-10 02:36:47,462 INFO L628 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 [2019-09-10 02:36:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2019-09-10 02:36:47,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1875. [2019-09-10 02:36:47,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1875 states. [2019-09-10 02:36:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2801 transitions. [2019-09-10 02:36:47,525 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2801 transitions. Word has length 151 [2019-09-10 02:36:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:47,526 INFO L475 AbstractCegarLoop]: Abstraction has 1875 states and 2801 transitions. [2019-09-10 02:36:47,526 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2801 transitions. [2019-09-10 02:36:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-10 02:36:47,532 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:47,532 INFO L399 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] [2019-09-10 02:36:47,533 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:47,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:47,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1599485913, now seen corresponding path program 1 times [2019-09-10 02:36:47,533 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:47,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:47,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,538 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:47,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:47,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:47,636 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:47,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:47,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:47,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:47,638 INFO L87 Difference]: Start difference. First operand 1875 states and 2801 transitions. Second operand 3 states. [2019-09-10 02:36:47,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:47,671 INFO L93 Difference]: Finished difference Result 2682 states and 4284 transitions. [2019-09-10 02:36:47,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:47,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-10 02:36:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:47,688 INFO L225 Difference]: With dead ends: 2682 [2019-09-10 02:36:47,688 INFO L226 Difference]: Without dead ends: 2682 [2019-09-10 02:36:47,689 INFO L628 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 [2019-09-10 02:36:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2019-09-10 02:36:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2675. [2019-09-10 02:36:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2019-09-10 02:36:47,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 4277 transitions. [2019-09-10 02:36:47,788 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 4277 transitions. Word has length 152 [2019-09-10 02:36:47,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:47,789 INFO L475 AbstractCegarLoop]: Abstraction has 2675 states and 4277 transitions. [2019-09-10 02:36:47,789 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:47,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 4277 transitions. [2019-09-10 02:36:47,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-09-10 02:36:47,803 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:47,803 INFO L399 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] [2019-09-10 02:36:47,803 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:47,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:47,804 INFO L82 PathProgramCache]: Analyzing trace with hash -9361978, now seen corresponding path program 1 times [2019-09-10 02:36:47,804 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:47,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:47,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:47,807 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:48,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:48,046 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:48,046 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:48,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:48,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:48,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:48,047 INFO L87 Difference]: Start difference. First operand 2675 states and 4277 transitions. Second operand 3 states. [2019-09-10 02:36:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:48,092 INFO L93 Difference]: Finished difference Result 4250 states and 7140 transitions. [2019-09-10 02:36:48,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:48,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-09-10 02:36:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:48,126 INFO L225 Difference]: With dead ends: 4250 [2019-09-10 02:36:48,127 INFO L226 Difference]: Without dead ends: 4250 [2019-09-10 02:36:48,128 INFO L628 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 [2019-09-10 02:36:48,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4250 states. [2019-09-10 02:36:48,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4250 to 4243. [2019-09-10 02:36:48,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2019-09-10 02:36:48,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 7133 transitions. [2019-09-10 02:36:48,277 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 7133 transitions. Word has length 153 [2019-09-10 02:36:48,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:48,279 INFO L475 AbstractCegarLoop]: Abstraction has 4243 states and 7133 transitions. [2019-09-10 02:36:48,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 7133 transitions. [2019-09-10 02:36:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-10 02:36:48,294 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:48,294 INFO L399 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] [2019-09-10 02:36:48,294 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:48,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:48,295 INFO L82 PathProgramCache]: Analyzing trace with hash 524262491, now seen corresponding path program 1 times [2019-09-10 02:36:48,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:48,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:48,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:48,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:48,298 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:48,423 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 02:36:48,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:48,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:36:48,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:48,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:36:48,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:36:48,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:36:48,426 INFO L87 Difference]: Start difference. First operand 4243 states and 7133 transitions. Second operand 3 states. [2019-09-10 02:36:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:48,488 INFO L93 Difference]: Finished difference Result 7322 states and 12660 transitions. [2019-09-10 02:36:48,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:36:48,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-09-10 02:36:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:48,536 INFO L225 Difference]: With dead ends: 7322 [2019-09-10 02:36:48,536 INFO L226 Difference]: Without dead ends: 7322 [2019-09-10 02:36:48,536 INFO L628 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 [2019-09-10 02:36:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2019-09-10 02:36:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 7315. [2019-09-10 02:36:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7315 states. [2019-09-10 02:36:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 12653 transitions. [2019-09-10 02:36:48,748 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 12653 transitions. Word has length 154 [2019-09-10 02:36:48,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:48,749 INFO L475 AbstractCegarLoop]: Abstraction has 7315 states and 12653 transitions. [2019-09-10 02:36:48,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:36:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 12653 transitions. [2019-09-10 02:36:48,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-09-10 02:36:48,776 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:36:48,777 INFO L399 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] [2019-09-10 02:36:48,777 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:36:48,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:36:48,777 INFO L82 PathProgramCache]: Analyzing trace with hash -149754556, now seen corresponding path program 1 times [2019-09-10 02:36:48,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:36:48,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:48,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:36:48,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:36:48,779 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:36:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:36:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-09-10 02:36:49,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:36:49,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:36:49,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:36:49,082 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:36:49,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:36:49,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:36:49,083 INFO L87 Difference]: Start difference. First operand 7315 states and 12653 transitions. Second operand 8 states. [2019-09-10 02:36:49,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:36:49,162 INFO L93 Difference]: Finished difference Result 7312 states and 12644 transitions. [2019-09-10 02:36:49,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:36:49,162 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2019-09-10 02:36:49,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:36:49,163 INFO L225 Difference]: With dead ends: 7312 [2019-09-10 02:36:49,163 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:36:49,165 INFO L628 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 [2019-09-10 02:36:49,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:36:49,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:36:49,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:36:49,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:36:49,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2019-09-10 02:36:49,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:36:49,166 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:36:49,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:36:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:36:49,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:36:49,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:36:49 BoogieIcfgContainer [2019-09-10 02:36:49,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:36:49,176 INFO L168 Benchmark]: Toolchain (without parser) took 8592.19 ms. Allocated memory was 142.1 MB in the beginning and 367.0 MB in the end (delta: 224.9 MB). Free memory was 88.0 MB in the beginning and 246.7 MB in the end (delta: -158.6 MB). Peak memory consumption was 66.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,177 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,179 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1045.50 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 87.8 MB in the beginning and 147.7 MB in the end (delta: -59.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,181 INFO L168 Benchmark]: Boogie Preprocessor took 181.63 ms. Allocated memory is still 203.4 MB. Free memory was 147.7 MB in the beginning and 139.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,188 INFO L168 Benchmark]: RCFGBuilder took 1922.23 ms. Allocated memory was 203.4 MB in the beginning and 256.9 MB in the end (delta: 53.5 MB). Free memory was 139.5 MB in the beginning and 208.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 96.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,188 INFO L168 Benchmark]: TraceAbstraction took 5438.23 ms. Allocated memory was 256.9 MB in the beginning and 367.0 MB in the end (delta: 110.1 MB). Free memory was 208.5 MB in the beginning and 246.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:36:49,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 108.3 MB in the beginning and 108.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1045.50 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 87.8 MB in the beginning and 147.7 MB in the end (delta: -59.8 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.63 ms. Allocated memory is still 203.4 MB. Free memory was 147.7 MB in the beginning and 139.5 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1922.23 ms. Allocated memory was 203.4 MB in the beginning and 256.9 MB in the end (delta: 53.5 MB). Free memory was 139.5 MB in the beginning and 208.5 MB in the end (delta: -69.1 MB). Peak memory consumption was 96.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5438.23 ms. Allocated memory was 256.9 MB in the beginning and 367.0 MB in the end (delta: 110.1 MB). Free memory was 208.5 MB in the beginning and 246.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 72.0 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, 5.3s 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, 0.3s 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s 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...