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_spec1_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:04,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:04,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:04,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:04,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:04,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:04,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:04,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:04,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:04,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:04,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:04,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:04,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:04,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:04,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:04,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:04,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:04,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:04,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:04,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:04,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:04,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:04,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:04,079 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:04,081 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:04,082 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:04,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:04,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:04,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:04,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:04,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:04,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:04,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:04,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:04,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:04,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:04,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:04,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:04,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:04,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:04,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:04,092 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:04,107 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:04,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:04,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:04,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:04,109 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:04,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:04,110 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:04,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:04,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:04,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:04,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:04,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:04,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:04,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:04,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:04,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:04,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:04,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:04,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:04,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:04,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:04,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:04,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:04,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:04,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:04,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:04,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:04,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:04,114 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 [2019-10-15 01:13:04,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:04,473 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:04,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:04,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:04,478 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:04,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-15 01:13:04,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9ef5c43/590d3f2745084c8da2405dcb646a0d95/FLAGe08c720d2 [2019-10-15 01:13:05,245 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:05,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product16.cil.c [2019-10-15 01:13:05,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9ef5c43/590d3f2745084c8da2405dcb646a0d95/FLAGe08c720d2 [2019-10-15 01:13:05,402 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da9ef5c43/590d3f2745084c8da2405dcb646a0d95 [2019-10-15 01:13:05,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:05,415 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:05,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:05,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:05,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:05,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:05" (1/1) ... [2019-10-15 01:13:05,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce42656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:05, skipping insertion in model container [2019-10-15 01:13:05,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:05" (1/1) ... [2019-10-15 01:13:05,434 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:05,519 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:06,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:06,274 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:06,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:06,494 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:06,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06 WrapperNode [2019-10-15 01:13:06,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:06,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:06,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:06,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:06,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... [2019-10-15 01:13:06,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:06,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:06,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:06,690 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:06,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:06,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:06,765 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:06,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:06,767 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:06,768 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:06,769 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:06,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:06,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:06,785 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:06,786 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:08,853 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:08,853 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:08,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:08 BoogieIcfgContainer [2019-10-15 01:13:08,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:08,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:08,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:08,861 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:08,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:05" (1/3) ... [2019-10-15 01:13:08,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6746cfd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:08, skipping insertion in model container [2019-10-15 01:13:08,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:06" (2/3) ... [2019-10-15 01:13:08,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6746cfd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:08, skipping insertion in model container [2019-10-15 01:13:08,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:08" (3/3) ... [2019-10-15 01:13:08,866 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product16.cil.c [2019-10-15 01:13:08,876 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:08,888 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:08,899 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:08,939 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:08,940 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:08,940 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:08,940 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:08,940 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:08,940 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:08,940 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:08,941 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states. [2019-10-15 01:13:09,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 01:13:09,013 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:09,015 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:09,019 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:09,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:09,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1028752379, now seen corresponding path program 1 times [2019-10-15 01:13:09,037 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:09,040 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938187464] [2019-10-15 01:13:09,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,041 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:09,614 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:09,615 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938187464] [2019-10-15 01:13:09,616 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:09,616 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:09,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136636967] [2019-10-15 01:13:09,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:09,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:09,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:09,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:09,642 INFO L87 Difference]: Start difference. First operand 476 states. Second operand 2 states. [2019-10-15 01:13:09,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:09,749 INFO L93 Difference]: Finished difference Result 694 states and 913 transitions. [2019-10-15 01:13:09,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:09,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-15 01:13:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:09,778 INFO L225 Difference]: With dead ends: 694 [2019-10-15 01:13:09,778 INFO L226 Difference]: Without dead ends: 453 [2019-10-15 01:13:09,784 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-15 01:13:09,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2019-10-15 01:13:09,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2019-10-15 01:13:09,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 601 transitions. [2019-10-15 01:13:09,875 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 601 transitions. Word has length 145 [2019-10-15 01:13:09,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:09,877 INFO L462 AbstractCegarLoop]: Abstraction has 453 states and 601 transitions. [2019-10-15 01:13:09,878 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:09,878 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 601 transitions. [2019-10-15 01:13:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 01:13:09,882 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:09,883 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:09,883 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:09,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:09,883 INFO L82 PathProgramCache]: Analyzing trace with hash -711556920, now seen corresponding path program 1 times [2019-10-15 01:13:09,884 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:09,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649154484] [2019-10-15 01:13:09,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:09,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:10,148 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:10,149 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649154484] [2019-10-15 01:13:10,149 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:10,149 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:10,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548500657] [2019-10-15 01:13:10,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:10,160 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:10,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:10,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:10,162 INFO L87 Difference]: Start difference. First operand 453 states and 601 transitions. Second operand 3 states. [2019-10-15 01:13:10,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:10,261 INFO L93 Difference]: Finished difference Result 677 states and 882 transitions. [2019-10-15 01:13:10,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:10,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-15 01:13:10,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:10,268 INFO L225 Difference]: With dead ends: 677 [2019-10-15 01:13:10,268 INFO L226 Difference]: Without dead ends: 456 [2019-10-15 01:13:10,274 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:10,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2019-10-15 01:13:10,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 455. [2019-10-15 01:13:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2019-10-15 01:13:10,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 603 transitions. [2019-10-15 01:13:10,335 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 603 transitions. Word has length 146 [2019-10-15 01:13:10,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:10,339 INFO L462 AbstractCegarLoop]: Abstraction has 455 states and 603 transitions. [2019-10-15 01:13:10,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:10,340 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 603 transitions. [2019-10-15 01:13:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 01:13:10,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:10,345 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:10,345 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:10,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1834454924, now seen corresponding path program 1 times [2019-10-15 01:13:10,346 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:10,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888394789] [2019-10-15 01:13:10,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:10,532 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888394789] [2019-10-15 01:13:10,533 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:10,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:10,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495702054] [2019-10-15 01:13:10,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:10,537 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:10,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:10,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:10,538 INFO L87 Difference]: Start difference. First operand 455 states and 603 transitions. Second operand 3 states. [2019-10-15 01:13:10,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:10,642 INFO L93 Difference]: Finished difference Result 886 states and 1204 transitions. [2019-10-15 01:13:10,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:10,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-10-15 01:13:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:10,656 INFO L225 Difference]: With dead ends: 886 [2019-10-15 01:13:10,657 INFO L226 Difference]: Without dead ends: 496 [2019-10-15 01:13:10,659 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:10,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-15 01:13:10,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 495. [2019-10-15 01:13:10,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2019-10-15 01:13:10,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 672 transitions. [2019-10-15 01:13:10,706 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 672 transitions. Word has length 152 [2019-10-15 01:13:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:10,707 INFO L462 AbstractCegarLoop]: Abstraction has 495 states and 672 transitions. [2019-10-15 01:13:10,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 672 transitions. [2019-10-15 01:13:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 01:13:10,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:10,714 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:10,714 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:10,715 INFO L82 PathProgramCache]: Analyzing trace with hash 316559845, now seen corresponding path program 1 times [2019-10-15 01:13:10,716 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:10,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295423933] [2019-10-15 01:13:10,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,716 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:10,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:11,629 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:11,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295423933] [2019-10-15 01:13:11,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:11,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-15 01:13:11,631 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670546281] [2019-10-15 01:13:11,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-15 01:13:11,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:11,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-15 01:13:11,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:13:11,638 INFO L87 Difference]: Start difference. First operand 495 states and 672 transitions. Second operand 31 states. [2019-10-15 01:13:16,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,399 INFO L93 Difference]: Finished difference Result 1423 states and 1968 transitions. [2019-10-15 01:13:16,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:13:16,399 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 153 [2019-10-15 01:13:16,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,407 INFO L225 Difference]: With dead ends: 1423 [2019-10-15 01:13:16,407 INFO L226 Difference]: Without dead ends: 964 [2019-10-15 01:13:16,411 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:13:16,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2019-10-15 01:13:16,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 718. [2019-10-15 01:13:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 718 states. [2019-10-15 01:13:16,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1025 transitions. [2019-10-15 01:13:16,458 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1025 transitions. Word has length 153 [2019-10-15 01:13:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,459 INFO L462 AbstractCegarLoop]: Abstraction has 718 states and 1025 transitions. [2019-10-15 01:13:16,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-15 01:13:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1025 transitions. [2019-10-15 01:13:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:16,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,464 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:16,464 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,464 INFO L82 PathProgramCache]: Analyzing trace with hash 410280145, now seen corresponding path program 1 times [2019-10-15 01:13:16,465 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:16,465 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945647070] [2019-10-15 01:13:16,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:17,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945647070] [2019-10-15 01:13:17,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17646065] [2019-10-15 01:13:17,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:17,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 2366 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:17,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:17,979 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:18,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:18,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:18,535 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:18,535 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:18,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:18,536 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33977378] [2019-10-15 01:13:18,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:18,536 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:18,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:18,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:18,537 INFO L87 Difference]: Start difference. First operand 718 states and 1025 transitions. Second operand 7 states. [2019-10-15 01:13:19,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:19,622 INFO L93 Difference]: Finished difference Result 1389 states and 2003 transitions. [2019-10-15 01:13:19,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:19,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 154 [2019-10-15 01:13:19,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:19,627 INFO L225 Difference]: With dead ends: 1389 [2019-10-15 01:13:19,628 INFO L226 Difference]: Without dead ends: 722 [2019-10-15 01:13:19,631 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 300 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:19,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2019-10-15 01:13:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 722. [2019-10-15 01:13:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2019-10-15 01:13:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 1030 transitions. [2019-10-15 01:13:19,670 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 1030 transitions. Word has length 154 [2019-10-15 01:13:19,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:19,671 INFO L462 AbstractCegarLoop]: Abstraction has 722 states and 1030 transitions. [2019-10-15 01:13:19,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 1030 transitions. [2019-10-15 01:13:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:19,674 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:19,675 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:19,883 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:19,884 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2095426242, now seen corresponding path program 1 times [2019-10-15 01:13:19,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:19,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105716568] [2019-10-15 01:13:19,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:19,886 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:19,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:20,428 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105716568] [2019-10-15 01:13:20,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:20,429 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:20,429 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531169257] [2019-10-15 01:13:20,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:20,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:20,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:20,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:20,430 INFO L87 Difference]: Start difference. First operand 722 states and 1030 transitions. Second operand 26 states. [2019-10-15 01:13:27,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:27,776 INFO L93 Difference]: Finished difference Result 2306 states and 3160 transitions. [2019-10-15 01:13:27,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-15 01:13:27,777 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 155 [2019-10-15 01:13:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:27,787 INFO L225 Difference]: With dead ends: 2306 [2019-10-15 01:13:27,788 INFO L226 Difference]: Without dead ends: 2094 [2019-10-15 01:13:27,791 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2019-10-15 01:13:27,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 1611. [2019-10-15 01:13:27,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1611 states. [2019-10-15 01:13:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2289 transitions. [2019-10-15 01:13:27,899 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2289 transitions. Word has length 155 [2019-10-15 01:13:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:27,902 INFO L462 AbstractCegarLoop]: Abstraction has 1611 states and 2289 transitions. [2019-10-15 01:13:27,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2289 transitions. [2019-10-15 01:13:27,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:27,907 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:27,908 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:27,908 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:27,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:27,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1906791, now seen corresponding path program 1 times [2019-10-15 01:13:27,909 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:27,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135785025] [2019-10-15 01:13:27,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:27,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:27,909 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:28,108 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:28,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135785025] [2019-10-15 01:13:28,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:28,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:28,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891955504] [2019-10-15 01:13:28,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:28,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:28,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:28,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:28,112 INFO L87 Difference]: Start difference. First operand 1611 states and 2289 transitions. Second operand 5 states. [2019-10-15 01:13:29,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:29,344 INFO L93 Difference]: Finished difference Result 3981 states and 5487 transitions. [2019-10-15 01:13:29,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:29,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2019-10-15 01:13:29,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:29,375 INFO L225 Difference]: With dead ends: 3981 [2019-10-15 01:13:29,376 INFO L226 Difference]: Without dead ends: 3348 [2019-10-15 01:13:29,382 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 [2019-10-15 01:13:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3348 states. [2019-10-15 01:13:29,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 3119. [2019-10-15 01:13:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3119 states. [2019-10-15 01:13:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 4301 transitions. [2019-10-15 01:13:29,669 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 4301 transitions. Word has length 156 [2019-10-15 01:13:29,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:29,670 INFO L462 AbstractCegarLoop]: Abstraction has 3119 states and 4301 transitions. [2019-10-15 01:13:29,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 4301 transitions. [2019-10-15 01:13:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:29,681 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:29,681 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:29,682 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:29,682 INFO L82 PathProgramCache]: Analyzing trace with hash -2012010632, now seen corresponding path program 1 times [2019-10-15 01:13:29,682 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:29,683 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863042031] [2019-10-15 01:13:29,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,683 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:29,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:29,898 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:29,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863042031] [2019-10-15 01:13:29,899 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:29,899 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:29,900 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052108118] [2019-10-15 01:13:29,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:29,902 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:29,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:29,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:29,903 INFO L87 Difference]: Start difference. First operand 3119 states and 4301 transitions. Second operand 9 states. [2019-10-15 01:13:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:30,274 INFO L93 Difference]: Finished difference Result 3549 states and 4843 transitions. [2019-10-15 01:13:30,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:30,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 156 [2019-10-15 01:13:30,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:30,282 INFO L225 Difference]: With dead ends: 3549 [2019-10-15 01:13:30,282 INFO L226 Difference]: Without dead ends: 1159 [2019-10-15 01:13:30,289 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-15 01:13:30,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1157. [2019-10-15 01:13:30,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1157 states. [2019-10-15 01:13:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1578 transitions. [2019-10-15 01:13:30,357 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1578 transitions. Word has length 156 [2019-10-15 01:13:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:30,358 INFO L462 AbstractCegarLoop]: Abstraction has 1157 states and 1578 transitions. [2019-10-15 01:13:30,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1578 transitions. [2019-10-15 01:13:30,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 01:13:30,361 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:30,362 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:30,362 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash 938095298, now seen corresponding path program 2 times [2019-10-15 01:13:30,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:30,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138690320] [2019-10-15 01:13:30,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:30,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:30,991 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138690320] [2019-10-15 01:13:30,992 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:30,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:13:30,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896159652] [2019-10-15 01:13:30,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:13:30,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:30,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:13:30,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:13:30,995 INFO L87 Difference]: Start difference. First operand 1157 states and 1578 transitions. Second operand 24 states.