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 -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:26:06,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:26:06,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:26:06,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:26:06,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:26:06,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:26:06,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:26:06,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:26:06,953 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:26:06,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:26:06,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:26:06,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:26:06,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:26:06,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:26:06,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:26:06,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:26:06,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:26:06,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:26:06,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:26:06,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:26:06,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:26:06,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:26:06,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:26:06,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:26:06,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:26:06,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:26:06,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:26:06,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:26:06,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:26:06,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:26:06,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:26:06,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:26:06,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:26:06,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:26:07,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:26:07,000 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:26:07,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:26:07,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:26:07,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:26:07,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:26:07,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:26:07,004 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 19:26:07,022 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:26:07,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:26:07,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:26:07,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:26:07,025 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:26:07,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:26:07,026 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:26:07,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:26:07,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:26:07,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:26:07,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:26:07,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:26:07,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:26:07,028 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:26:07,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:26:07,029 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:26:07,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:26:07,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:26:07,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:26:07,031 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:26:07,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:26:07,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:26:07,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:26:07,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:26:07,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:26:07,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:26:07,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:26:07,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:26:07,329 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:26:07,330 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product37.cil.c [2019-10-13 19:26:07,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c005e5699/8aa866a2f8bd4957b0d0ac85032a5572/FLAGef8492d04 [2019-10-13 19:26:08,052 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:26:08,052 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product37.cil.c [2019-10-13 19:26:08,076 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c005e5699/8aa866a2f8bd4957b0d0ac85032a5572/FLAGef8492d04 [2019-10-13 19:26:08,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c005e5699/8aa866a2f8bd4957b0d0ac85032a5572 [2019-10-13 19:26:08,259 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:26:08,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:26:08,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:26:08,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:26:08,266 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:26:08,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:08" (1/1) ... [2019-10-13 19:26:08,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ad9691c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:08, skipping insertion in model container [2019-10-13 19:26:08,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:26:08" (1/1) ... [2019-10-13 19:26:08,276 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:26:08,352 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:26:09,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:26:09,130 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:26:09,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:26:09,362 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:26:09,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09 WrapperNode [2019-10-13 19:26:09,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:26:09,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:26:09,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:26:09,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:26:09,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,404 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (1/1) ... [2019-10-13 19:26:09,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:26:09,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:26:09,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:26:09,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:26:09,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (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 19:26:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:26:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:26:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:26:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 19:26:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:26:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:26:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:26:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:26:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:26:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:26:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:26:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 19:26:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 19:26:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 19:26:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 19:26:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 19:26:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 19:26:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 19:26:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 19:26:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 19:26:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 19:26:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 19:26:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 19:26:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 19:26:09,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 19:26:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 19:26:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 19:26:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 19:26:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 19:26:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 19:26:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 19:26:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 19:26:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 19:26:09,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 19:26:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 19:26:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:26:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:26:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:26:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:26:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 19:26:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:26:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 19:26:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 19:26:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 19:26:09,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 19:26:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 19:26:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 19:26:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 19:26:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 19:26:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 19:26:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 19:26:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 19:26:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 19:26:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 19:26:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 19:26:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 19:26:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 19:26:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 19:26:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 19:26:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 19:26:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:26:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:26:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 19:26:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 19:26:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 19:26:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 19:26:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 19:26:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 19:26:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 19:26:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 19:26:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 19:26:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 19:26:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 19:26:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 19:26:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 19:26:09,598 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 19:26:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 19:26:09,599 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-13 19:26:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 19:26:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 19:26:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 19:26:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 19:26:09,600 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 19:26:09,601 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 19:26:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 19:26:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 19:26:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 19:26:09,602 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 19:26:09,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 19:26:09,603 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 19:26:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 19:26:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 19:26:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 19:26:09,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 19:26:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 19:26:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 19:26:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 19:26:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 19:26:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:26:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:26:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:26:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:26:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:26:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:26:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:26:09,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:26:09,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:26:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:26:09,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:26:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:26:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 19:26:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 19:26:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 19:26:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 19:26:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 19:26:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 19:26:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 19:26:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 19:26:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 19:26:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 19:26:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 19:26:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 19:26:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 19:26:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 19:26:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 19:26:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 19:26:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 19:26:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 19:26:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:26:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 19:26:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 19:26:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 19:26:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 19:26:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 19:26:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 19:26:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 19:26:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 19:26:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 19:26:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:26:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 19:26:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 19:26:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:26:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:26:11,610 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:26:11,611 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 19:26:11,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:11 BoogieIcfgContainer [2019-10-13 19:26:11,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:26:11,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:26:11,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:26:11,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:26:11,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:26:08" (1/3) ... [2019-10-13 19:26:11,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241aa2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:11, skipping insertion in model container [2019-10-13 19:26:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:26:09" (2/3) ... [2019-10-13 19:26:11,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241aa2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:26:11, skipping insertion in model container [2019-10-13 19:26:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:26:11" (3/3) ... [2019-10-13 19:26:11,621 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product37.cil.c [2019-10-13 19:26:11,632 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:26:11,643 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:26:11,657 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:26:11,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:26:11,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:26:11,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:26:11,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:26:11,707 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:26:11,707 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:26:11,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:26:11,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:26:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states. [2019-10-13 19:26:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 19:26:11,781 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:26:11,783 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:26:11,787 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:26:11,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:26:11,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1647705551, now seen corresponding path program 1 times [2019-10-13 19:26:11,802 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:26:11,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970710] [2019-10-13 19:26:11,802 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:11,803 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:11,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:26:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,092 WARN L191 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 529 [2019-10-13 19:26:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 19:26:14,537 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970710] [2019-10-13 19:26:14,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:26:14,538 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:26:14,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319218228] [2019-10-13 19:26:14,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:26:14,546 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:26:14,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:26:14,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:26:14,563 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 10 states. [2019-10-13 19:26:28,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:26:28,279 INFO L93 Difference]: Finished difference Result 930 states and 1377 transitions. [2019-10-13 19:26:28,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-13 19:26:28,282 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2019-10-13 19:26:28,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:26:28,307 INFO L225 Difference]: With dead ends: 930 [2019-10-13 19:26:28,307 INFO L226 Difference]: Without dead ends: 686 [2019-10-13 19:26:28,314 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:26:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2019-10-13 19:26:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 395. [2019-10-13 19:26:28,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2019-10-13 19:26:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 518 transitions. [2019-10-13 19:26:28,547 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 518 transitions. Word has length 154 [2019-10-13 19:26:28,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:26:28,548 INFO L462 AbstractCegarLoop]: Abstraction has 395 states and 518 transitions. [2019-10-13 19:26:28,548 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:26:28,548 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 518 transitions. [2019-10-13 19:26:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 19:26:28,552 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:26:28,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:26:28,553 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:26:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:26:28,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1784478369, now seen corresponding path program 1 times [2019-10-13 19:26:28,553 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:26:28,554 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171013952] [2019-10-13 19:26:28,554 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:28,554 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:28,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:26:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,175 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 529 [2019-10-13 19:26:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:30,563 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 19:26:30,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171013952] [2019-10-13 19:26:30,564 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:26:30,564 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:26:30,564 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758316315] [2019-10-13 19:26:30,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:26:30,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:26:30,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:26:30,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:26:30,567 INFO L87 Difference]: Start difference. First operand 395 states and 518 transitions. Second operand 11 states. [2019-10-13 19:26:33,877 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 532 [2019-10-13 19:26:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:26:44,247 INFO L93 Difference]: Finished difference Result 841 states and 1190 transitions. [2019-10-13 19:26:44,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:26:44,248 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2019-10-13 19:26:44,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:26:44,257 INFO L225 Difference]: With dead ends: 841 [2019-10-13 19:26:44,258 INFO L226 Difference]: Without dead ends: 689 [2019-10-13 19:26:44,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:26:44,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2019-10-13 19:26:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 397. [2019-10-13 19:26:44,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 19:26:44,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 520 transitions. [2019-10-13 19:26:44,453 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 520 transitions. Word has length 155 [2019-10-13 19:26:44,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:26:44,454 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 520 transitions. [2019-10-13 19:26:44,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:26:44,454 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 520 transitions. [2019-10-13 19:26:44,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 19:26:44,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:26:44,457 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:26:44,458 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:26:44,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:26:44,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1272778800, now seen corresponding path program 1 times [2019-10-13 19:26:44,458 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:26:44,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993781931] [2019-10-13 19:26:44,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:44,459 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:26:44,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:26:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,119 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 529 [2019-10-13 19:26:46,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:26:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 19:26:46,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993781931] [2019-10-13 19:26:46,433 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:26:46,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:26:46,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627935425] [2019-10-13 19:26:46,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:26:46,434 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:26:46,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:26:46,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:26:46,435 INFO L87 Difference]: Start difference. First operand 397 states and 520 transitions. Second operand 11 states.