java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:11,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:11,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:11,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:11,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:11,660 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:11,662 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:11,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:11,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:11,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:11,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:11,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:11,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:11,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:11,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:11,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:11,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:11,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:11,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:11,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:11,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:11,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:11,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:11,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:11,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:11,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:11,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:11,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:11,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:11,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:11,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:11,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:11,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:11,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:11,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:11,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:11,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:11,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:11,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:11,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:11,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:11,717 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:11,743 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:11,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:11,745 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:11,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:11,745 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:11,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:11,746 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:11,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:11,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:11,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:11,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:11,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:11,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:11,747 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:11,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:11,748 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:11,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:11,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:11,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:11,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:11,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:11,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:11,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:11,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:11,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:11,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:11,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:11,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:11,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:12,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:12,053 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:12,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:12,058 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:12,058 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:12,059 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-13 21:17:12,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e8ec0d2/656d70f05ba44439a759bf8bf4a96721/FLAGb942dd262 [2019-10-13 21:17:12,728 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:12,729 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-13 21:17:12,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e8ec0d2/656d70f05ba44439a759bf8bf4a96721/FLAGb942dd262 [2019-10-13 21:17:12,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06e8ec0d2/656d70f05ba44439a759bf8bf4a96721 [2019-10-13 21:17:12,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:12,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:12,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:12,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:12,988 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:12,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:12" (1/1) ... [2019-10-13 21:17:12,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:12, skipping insertion in model container [2019-10-13 21:17:12,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:12" (1/1) ... [2019-10-13 21:17:12,999 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:13,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:13,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:13,908 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:14,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:14,199 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:14,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14 WrapperNode [2019-10-13 21:17:14,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:14,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:14,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:14,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:14,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... [2019-10-13 21:17:14,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:14,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:14,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:14,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:14,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:14,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:14,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:14,503 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:14,504 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:14,505 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:14,506 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-13 21:17:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:17:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:16,838 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:16,839 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:16,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:16 BoogieIcfgContainer [2019-10-13 21:17:16,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:16,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:16,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:16,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:16,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:12" (1/3) ... [2019-10-13 21:17:16,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cf7773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:16, skipping insertion in model container [2019-10-13 21:17:16,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:14" (2/3) ... [2019-10-13 21:17:16,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cf7773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:16, skipping insertion in model container [2019-10-13 21:17:16,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:16" (3/3) ... [2019-10-13 21:17:16,849 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-10-13 21:17:16,859 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:16,869 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:16,881 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:16,923 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:16,924 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:16,927 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:16,927 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:16,928 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:16,928 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:16,929 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:16,929 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-13 21:17:17,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:17:17,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:17,019 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:17,022 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:17,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:17,030 INFO L82 PathProgramCache]: Analyzing trace with hash -704856289, now seen corresponding path program 1 times [2019-10-13 21:17:17,041 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:17,041 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972765196] [2019-10-13 21:17:17,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,042 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:17,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:17,729 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972765196] [2019-10-13 21:17:17,729 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:17,730 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:17,730 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146015724] [2019-10-13 21:17:17,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:17,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:17,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:17,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:17,750 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 2 states. [2019-10-13 21:17:17,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:17,825 INFO L93 Difference]: Finished difference Result 861 states and 1174 transitions. [2019-10-13 21:17:17,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:17,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-13 21:17:17,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:17,850 INFO L225 Difference]: With dead ends: 861 [2019-10-13 21:17:17,850 INFO L226 Difference]: Without dead ends: 553 [2019-10-13 21:17:17,857 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:17,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-13 21:17:17,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2019-10-13 21:17:17,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-10-13 21:17:17,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 758 transitions. [2019-10-13 21:17:17,953 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 758 transitions. Word has length 198 [2019-10-13 21:17:17,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:17,956 INFO L462 AbstractCegarLoop]: Abstraction has 553 states and 758 transitions. [2019-10-13 21:17:17,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:17,956 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 758 transitions. [2019-10-13 21:17:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:17:17,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:17,961 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:17,962 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:17,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1910809467, now seen corresponding path program 1 times [2019-10-13 21:17:17,962 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:17,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370583870] [2019-10-13 21:17:17,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:17,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:18,217 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:18,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370583870] [2019-10-13 21:17:18,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:18,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:18,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142613760] [2019-10-13 21:17:18,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:18,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:18,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:18,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:18,221 INFO L87 Difference]: Start difference. First operand 553 states and 758 transitions. Second operand 3 states. [2019-10-13 21:17:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:18,272 INFO L93 Difference]: Finished difference Result 844 states and 1138 transitions. [2019-10-13 21:17:18,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:18,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-13 21:17:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:18,279 INFO L225 Difference]: With dead ends: 844 [2019-10-13 21:17:18,279 INFO L226 Difference]: Without dead ends: 556 [2019-10-13 21:17:18,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:18,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-13 21:17:18,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2019-10-13 21:17:18,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-10-13 21:17:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2019-10-13 21:17:18,331 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 199 [2019-10-13 21:17:18,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:18,331 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2019-10-13 21:17:18,332 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:18,332 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2019-10-13 21:17:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:17:18,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:18,337 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:18,337 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:18,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:18,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1939703097, now seen corresponding path program 1 times [2019-10-13 21:17:18,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:18,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666097502] [2019-10-13 21:17:18,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:18,589 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:18,590 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666097502] [2019-10-13 21:17:18,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:18,591 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:18,591 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744328310] [2019-10-13 21:17:18,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:18,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:18,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:18,593 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 3 states. [2019-10-13 21:17:18,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:18,657 INFO L93 Difference]: Finished difference Result 1086 states and 1518 transitions. [2019-10-13 21:17:18,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:18,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 21:17:18,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:18,667 INFO L225 Difference]: With dead ends: 1086 [2019-10-13 21:17:18,668 INFO L226 Difference]: Without dead ends: 596 [2019-10-13 21:17:18,671 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-13 21:17:18,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2019-10-13 21:17:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-13 21:17:18,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 829 transitions. [2019-10-13 21:17:18,726 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 829 transitions. Word has length 205 [2019-10-13 21:17:18,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:18,727 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 829 transitions. [2019-10-13 21:17:18,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:18,727 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 829 transitions. [2019-10-13 21:17:18,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:17:18,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:18,739 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:18,744 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:18,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1931523851, now seen corresponding path program 1 times [2019-10-13 21:17:18,746 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:18,746 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573543030] [2019-10-13 21:17:18,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,747 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:18,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:19,222 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:19,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573543030] [2019-10-13 21:17:19,223 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:19,223 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:19,223 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233832263] [2019-10-13 21:17:19,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:19,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:19,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:19,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:19,225 INFO L87 Difference]: Start difference. First operand 595 states and 829 transitions. Second operand 11 states. [2019-10-13 21:17:24,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,617 INFO L93 Difference]: Finished difference Result 3017 states and 4347 transitions. [2019-10-13 21:17:24,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:24,617 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-13 21:17:24,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:24,635 INFO L225 Difference]: With dead ends: 3017 [2019-10-13 21:17:24,636 INFO L226 Difference]: Without dead ends: 2742 [2019-10-13 21:17:24,639 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:24,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2019-10-13 21:17:24,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2721. [2019-10-13 21:17:24,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2019-10-13 21:17:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3813 transitions. [2019-10-13 21:17:24,762 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3813 transitions. Word has length 206 [2019-10-13 21:17:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:24,762 INFO L462 AbstractCegarLoop]: Abstraction has 2721 states and 3813 transitions. [2019-10-13 21:17:24,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3813 transitions. [2019-10-13 21:17:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:17:24,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:24,767 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:24,767 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:24,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:24,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1283992778, now seen corresponding path program 1 times [2019-10-13 21:17:24,768 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:24,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934604310] [2019-10-13 21:17:24,768 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:24,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:25,172 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934604310] [2019-10-13 21:17:25,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:25,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-13 21:17:25,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063978695] [2019-10-13 21:17:25,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 21:17:25,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:25,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 21:17:25,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-13 21:17:25,175 INFO L87 Difference]: Start difference. First operand 2721 states and 3813 transitions. Second operand 20 states. [2019-10-13 21:17:25,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:25,854 INFO L93 Difference]: Finished difference Result 5086 states and 7256 transitions. [2019-10-13 21:17:25,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 21:17:25,854 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 207 [2019-10-13 21:17:25,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,890 INFO L225 Difference]: With dead ends: 5086 [2019-10-13 21:17:25,890 INFO L226 Difference]: Without dead ends: 2667 [2019-10-13 21:17:25,900 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-13 21:17:25,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2019-10-13 21:17:26,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2665. [2019-10-13 21:17:26,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2019-10-13 21:17:26,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3727 transitions. [2019-10-13 21:17:26,054 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3727 transitions. Word has length 207 [2019-10-13 21:17:26,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:26,055 INFO L462 AbstractCegarLoop]: Abstraction has 2665 states and 3727 transitions. [2019-10-13 21:17:26,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-13 21:17:26,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3727 transitions. [2019-10-13 21:17:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:17:26,059 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:26,060 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:26,060 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:26,060 INFO L82 PathProgramCache]: Analyzing trace with hash 230982638, now seen corresponding path program 1 times [2019-10-13 21:17:26,061 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:26,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481285950] [2019-10-13 21:17:26,061 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,061 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:26,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:26,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481285950] [2019-10-13 21:17:26,298 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:26,298 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:26,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883484221] [2019-10-13 21:17:26,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:26,299 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:26,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:26,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:26,300 INFO L87 Difference]: Start difference. First operand 2665 states and 3727 transitions. Second operand 6 states. [2019-10-13 21:17:26,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,968 INFO L93 Difference]: Finished difference Result 7713 states and 10967 transitions. [2019-10-13 21:17:26,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:26,969 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-13 21:17:26,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:27,013 INFO L225 Difference]: With dead ends: 7713 [2019-10-13 21:17:27,013 INFO L226 Difference]: Without dead ends: 5417 [2019-10-13 21:17:27,029 INFO L600 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 [2019-10-13 21:17:27,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2019-10-13 21:17:27,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5346. [2019-10-13 21:17:27,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5346 states. [2019-10-13 21:17:27,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 7577 transitions. [2019-10-13 21:17:27,321 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 7577 transitions. Word has length 216 [2019-10-13 21:17:27,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:27,321 INFO L462 AbstractCegarLoop]: Abstraction has 5346 states and 7577 transitions. [2019-10-13 21:17:27,321 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 7577 transitions. [2019-10-13 21:17:27,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:27,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,328 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:27,328 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,329 INFO L82 PathProgramCache]: Analyzing trace with hash -95717533, now seen corresponding path program 1 times [2019-10-13 21:17:27,329 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401591890] [2019-10-13 21:17:27,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:27,571 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401591890] [2019-10-13 21:17:27,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:27,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:17:27,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853549033] [2019-10-13 21:17:27,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:17:27,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:27,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:17:27,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:17:27,573 INFO L87 Difference]: Start difference. First operand 5346 states and 7577 transitions. Second operand 13 states. [2019-10-13 21:17:28,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:28,278 INFO L93 Difference]: Finished difference Result 10077 states and 14314 transitions. [2019-10-13 21:17:28,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:17:28,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2019-10-13 21:17:28,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:28,326 INFO L225 Difference]: With dead ends: 10077 [2019-10-13 21:17:28,326 INFO L226 Difference]: Without dead ends: 5400 [2019-10-13 21:17:28,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:17:28,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2019-10-13 21:17:28,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 5382. [2019-10-13 21:17:28,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5382 states. [2019-10-13 21:17:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 7631 transitions. [2019-10-13 21:17:28,914 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 7631 transitions. Word has length 217 [2019-10-13 21:17:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:28,915 INFO L462 AbstractCegarLoop]: Abstraction has 5382 states and 7631 transitions. [2019-10-13 21:17:28,915 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:17:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 7631 transitions. [2019-10-13 21:17:28,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-13 21:17:28,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:28,925 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:28,925 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:28,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:28,926 INFO L82 PathProgramCache]: Analyzing trace with hash 491058586, now seen corresponding path program 1 times [2019-10-13 21:17:28,926 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:28,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942985741] [2019-10-13 21:17:28,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:28,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:28,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:29,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942985741] [2019-10-13 21:17:29,101 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:29,101 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:29,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154182784] [2019-10-13 21:17:29,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:29,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:29,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:29,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:29,103 INFO L87 Difference]: Start difference. First operand 5382 states and 7631 transitions. Second operand 5 states. [2019-10-13 21:17:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:30,857 INFO L93 Difference]: Finished difference Result 20027 states and 29083 transitions. [2019-10-13 21:17:30,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:30,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-13 21:17:30,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:30,948 INFO L225 Difference]: With dead ends: 20027 [2019-10-13 21:17:30,948 INFO L226 Difference]: Without dead ends: 15316 [2019-10-13 21:17:30,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:17:30,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2019-10-13 21:17:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 15204. [2019-10-13 21:17:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15204 states. [2019-10-13 21:17:31,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15204 states to 15204 states and 21825 transitions. [2019-10-13 21:17:31,616 INFO L78 Accepts]: Start accepts. Automaton has 15204 states and 21825 transitions. Word has length 217 [2019-10-13 21:17:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:31,617 INFO L462 AbstractCegarLoop]: Abstraction has 15204 states and 21825 transitions. [2019-10-13 21:17:31,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 15204 states and 21825 transitions. [2019-10-13 21:17:31,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 21:17:31,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:31,631 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:31,631 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:31,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:31,632 INFO L82 PathProgramCache]: Analyzing trace with hash -364250432, now seen corresponding path program 1 times [2019-10-13 21:17:31,632 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:31,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922923202] [2019-10-13 21:17:31,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:31,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:31,817 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922923202] [2019-10-13 21:17:31,817 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:31,817 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:31,817 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976280844] [2019-10-13 21:17:31,818 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:31,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:31,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:31,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:31,819 INFO L87 Difference]: Start difference. First operand 15204 states and 21825 transitions. Second operand 3 states. [2019-10-13 21:17:32,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:32,831 INFO L93 Difference]: Finished difference Result 30671 states and 44186 transitions. [2019-10-13 21:17:32,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:32,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-13 21:17:32,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:32,908 INFO L225 Difference]: With dead ends: 30671 [2019-10-13 21:17:32,909 INFO L226 Difference]: Without dead ends: 15532 [2019-10-13 21:17:32,959 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:32,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2019-10-13 21:17:33,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 15528. [2019-10-13 21:17:33,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15528 states. [2019-10-13 21:17:33,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15528 states to 15528 states and 22422 transitions. [2019-10-13 21:17:33,535 INFO L78 Accepts]: Start accepts. Automaton has 15528 states and 22422 transitions. Word has length 246 [2019-10-13 21:17:33,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:33,535 INFO L462 AbstractCegarLoop]: Abstraction has 15528 states and 22422 transitions. [2019-10-13 21:17:33,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:33,536 INFO L276 IsEmpty]: Start isEmpty. Operand 15528 states and 22422 transitions. [2019-10-13 21:17:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-13 21:17:33,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:33,550 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:33,550 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:33,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1895342000, now seen corresponding path program 1 times [2019-10-13 21:17:33,551 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:33,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922338804] [2019-10-13 21:17:33,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,552 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:33,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:33,889 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922338804] [2019-10-13 21:17:33,890 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:33,890 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:33,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299570883] [2019-10-13 21:17:33,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:33,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:33,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:33,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:33,892 INFO L87 Difference]: Start difference. First operand 15528 states and 22422 transitions. Second operand 3 states. [2019-10-13 21:17:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:34,213 INFO L93 Difference]: Finished difference Result 31603 states and 45913 transitions. [2019-10-13 21:17:34,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:34,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-13 21:17:34,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:34,284 INFO L225 Difference]: With dead ends: 31603 [2019-10-13 21:17:34,284 INFO L226 Difference]: Without dead ends: 16140 [2019-10-13 21:17:34,321 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:34,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16140 states. [2019-10-13 21:17:34,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16140 to 16136. [2019-10-13 21:17:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16136 states. [2019-10-13 21:17:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23544 transitions. [2019-10-13 21:17:34,911 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23544 transitions. Word has length 253 [2019-10-13 21:17:34,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:34,913 INFO L462 AbstractCegarLoop]: Abstraction has 16136 states and 23544 transitions. [2019-10-13 21:17:34,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23544 transitions. [2019-10-13 21:17:34,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-13 21:17:34,931 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:34,932 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:34,932 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:34,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:34,932 INFO L82 PathProgramCache]: Analyzing trace with hash -351511822, now seen corresponding path program 1 times [2019-10-13 21:17:34,933 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:34,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95927098] [2019-10-13 21:17:34,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,933 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:34,933 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-13 21:17:35,433 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95927098] [2019-10-13 21:17:35,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:35,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:35,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739509091] [2019-10-13 21:17:35,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:35,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:35,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:35,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:35,435 INFO L87 Difference]: Start difference. First operand 16136 states and 23544 transitions. Second operand 8 states. [2019-10-13 21:17:40,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:40,321 INFO L93 Difference]: Finished difference Result 48774 states and 72622 transitions. [2019-10-13 21:17:40,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:40,321 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-13 21:17:40,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:40,468 INFO L225 Difference]: With dead ends: 48774 [2019-10-13 21:17:40,468 INFO L226 Difference]: Without dead ends: 32703 [2019-10-13 21:17:40,518 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-13 21:17:40,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32703 states. [2019-10-13 21:17:42,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32703 to 18452. [2019-10-13 21:17:42,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18452 states. [2019-10-13 21:17:42,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18452 states to 18452 states and 28180 transitions. [2019-10-13 21:17:42,501 INFO L78 Accepts]: Start accepts. Automaton has 18452 states and 28180 transitions. Word has length 254 [2019-10-13 21:17:42,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:42,501 INFO L462 AbstractCegarLoop]: Abstraction has 18452 states and 28180 transitions. [2019-10-13 21:17:42,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 18452 states and 28180 transitions. [2019-10-13 21:17:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-10-13 21:17:42,539 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:42,539 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:42,540 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:42,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:42,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1898394897, now seen corresponding path program 1 times [2019-10-13 21:17:42,540 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:42,540 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007938408] [2019-10-13 21:17:42,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,541 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:42,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:42,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007938408] [2019-10-13 21:17:42,751 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:42,751 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:42,751 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521078862] [2019-10-13 21:17:42,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:42,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:42,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:42,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:42,752 INFO L87 Difference]: Start difference. First operand 18452 states and 28180 transitions. Second operand 8 states.