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_spec8_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:18:44,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:18:44,474 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:18:44,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:18:44,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:18:44,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:18:44,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:18:44,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:18:44,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:18:44,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:18:44,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:18:44,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:18:44,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:18:44,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:18:44,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:18:44,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:18:44,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:18:44,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:18:44,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:18:44,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:18:44,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:18:44,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:18:44,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:18:44,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:18:44,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:18:44,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:18:44,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:18:44,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:18:44,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:18:44,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:18:44,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:18:44,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:18:44,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:18:44,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:18:44,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:18:44,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:18:44,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:18:44,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:18:44,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:18:44,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:18:44,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:18:44,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:18:44,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:18:44,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:18:44,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:18:44,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:18:44,599 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:18:44,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:18:44,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:18:44,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:18:44,604 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:18:44,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:18:44,606 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:18:44,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:18:44,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:18:44,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:18:44,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:18:44,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:18:44,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:18:44,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:18:44,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:18:44,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:18:44,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:18:44,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:18:44,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:18:44,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:18:44,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:18:44,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:18:44,925 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:18:44,926 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:18:44,927 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:18:44,927 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-13 21:18:44,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b56f762/f7fb58ab6154467fb8e50a68e17c68da/FLAG7419fd4c3 [2019-10-13 21:18:45,645 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:18:45,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_productSimulator.cil.c [2019-10-13 21:18:45,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b56f762/f7fb58ab6154467fb8e50a68e17c68da/FLAG7419fd4c3 [2019-10-13 21:18:45,834 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20b56f762/f7fb58ab6154467fb8e50a68e17c68da [2019-10-13 21:18:45,843 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:18:45,844 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:18:45,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:45,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:18:45,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:18:45,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:45" (1/1) ... [2019-10-13 21:18:45,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5381d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:45, skipping insertion in model container [2019-10-13 21:18:45,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:45" (1/1) ... [2019-10-13 21:18:45,857 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:18:45,931 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:18:46,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:46,773 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:18:46,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:47,161 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:18:47,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47 WrapperNode [2019-10-13 21:18:47,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:47,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:18:47,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:18:47,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:18:47,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... [2019-10-13 21:18:47,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:18:47,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:18:47,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:18:47,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:18:47,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:18:47,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:18:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:18:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:18:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:18:47,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:18:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:18:47,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:18:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:18:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:47,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:47,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:18:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:18:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:18:47,511 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:18:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:18:47,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:18:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:18:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:18:47,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:18:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:18:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:18:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:18:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:18:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:18:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:18:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:18:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:18:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:18:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:18:47,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:18:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:18:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:18:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:18:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:18:47,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:18:47,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:18:47,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:18:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:18:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:18:47,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:18:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:18:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:18:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:18:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:47,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:18:47,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:18:47,525 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:18:47,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:18:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:18:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:18:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:18:47,526 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:18:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:18:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:18:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:18:47,527 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:18:47,528 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:18:47,528 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:18:47,528 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:18:47,529 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:18:47,529 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:18:47,530 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:18:47,531 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:18:47,532 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:18:47,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:18:47,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:18:47,533 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:18:47,533 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:18:47,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:18:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:18:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:18:47,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:18:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:18:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:18:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:18:47,559 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:18:47,560 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:18:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:18:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:18:47,561 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:18:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:18:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:18:47,562 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:18:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:18:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:18:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:18:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:18:47,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:18:47,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:18:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:18:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:18:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:18:47,564 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:18:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:18:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:18:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:18:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:18:47,565 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:18:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:18:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:18:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:18:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:18:47,566 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:18:47,567 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:18:47,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:18:47,569 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:18:47,570 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:18:47,571 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:18:47,572 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:18:47,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:18:47,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:18:47,575 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:18:47,576 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:18:47,577 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:18:47,578 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:18:47,579 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:18:47,580 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:18:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:18:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:18:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:18:47,581 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:18:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:18:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:18:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:18:47,582 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:18:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:18:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:18:47,583 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:18:47,584 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:18:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:18:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:18:47,585 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:18:47,589 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:18:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:18:47,590 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:18:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:18:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:18:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:18:47,591 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:18:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:18:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:18:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:50,114 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:50,114 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:50,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:50 BoogieIcfgContainer [2019-10-13 21:18:50,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:50,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:50,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:50,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:50,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:18:45" (1/3) ... [2019-10-13 21:18:50,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150f40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:50, skipping insertion in model container [2019-10-13 21:18:50,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:47" (2/3) ... [2019-10-13 21:18:50,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7150f40f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:50, skipping insertion in model container [2019-10-13 21:18:50,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:50" (3/3) ... [2019-10-13 21:18:50,124 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_productSimulator.cil.c [2019-10-13 21:18:50,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:50,144 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:50,156 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:50,187 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:50,188 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:50,188 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:50,188 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:50,188 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:50,188 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:50,188 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:50,189 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:50,224 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states. [2019-10-13 21:18:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 21:18:50,246 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:50,247 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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] [2019-10-13 21:18:50,249 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:50,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:50,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1272279262, now seen corresponding path program 1 times [2019-10-13 21:18:50,266 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:50,266 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824592854] [2019-10-13 21:18:50,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:50,267 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:50,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:51,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824592854] [2019-10-13 21:18:51,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:51,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:51,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557439070] [2019-10-13 21:18:51,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:51,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:51,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:51,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:51,061 INFO L87 Difference]: Start difference. First operand 818 states. Second operand 6 states. [2019-10-13 21:18:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:51,239 INFO L93 Difference]: Finished difference Result 1554 states and 2145 transitions. [2019-10-13 21:18:51,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:18:51,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2019-10-13 21:18:51,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:51,279 INFO L225 Difference]: With dead ends: 1554 [2019-10-13 21:18:51,279 INFO L226 Difference]: Without dead ends: 789 [2019-10-13 21:18:51,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:51,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-13 21:18:51,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-13 21:18:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 21:18:51,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1073 transitions. [2019-10-13 21:18:51,507 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1073 transitions. Word has length 170 [2019-10-13 21:18:51,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:51,511 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1073 transitions. [2019-10-13 21:18:51,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:51,511 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1073 transitions. [2019-10-13 21:18:51,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 21:18:51,520 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:51,520 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1] [2019-10-13 21:18:51,523 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:51,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:51,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1687310560, now seen corresponding path program 1 times [2019-10-13 21:18:51,524 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:51,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692262232] [2019-10-13 21:18:51,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:51,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:51,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:51,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692262232] [2019-10-13 21:18:51,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:51,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:18:51,851 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059181603] [2019-10-13 21:18:51,863 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:18:51,870 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:51,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:18:51,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:51,871 INFO L87 Difference]: Start difference. First operand 789 states and 1073 transitions. Second operand 4 states. [2019-10-13 21:18:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:52,802 INFO L93 Difference]: Finished difference Result 1541 states and 2131 transitions. [2019-10-13 21:18:52,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:18:52,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2019-10-13 21:18:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:52,813 INFO L225 Difference]: With dead ends: 1541 [2019-10-13 21:18:52,814 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 21:18:52,817 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 21:18:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-13 21:18:52,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 21:18:52,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1063 transitions. [2019-10-13 21:18:52,860 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1063 transitions. Word has length 176 [2019-10-13 21:18:52,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:52,861 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1063 transitions. [2019-10-13 21:18:52,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:18:52,861 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1063 transitions. [2019-10-13 21:18:52,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:18:52,865 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:52,865 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:52,866 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:52,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:52,866 INFO L82 PathProgramCache]: Analyzing trace with hash -544519570, now seen corresponding path program 1 times [2019-10-13 21:18:52,866 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:52,867 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581528008] [2019-10-13 21:18:52,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:52,867 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:52,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:53,044 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:53,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581528008] [2019-10-13 21:18:53,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:53,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:53,046 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090369669] [2019-10-13 21:18:53,048 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:53,048 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:53,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:53,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:53,049 INFO L87 Difference]: Start difference. First operand 788 states and 1063 transitions. Second operand 3 states. [2019-10-13 21:18:53,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:53,218 INFO L93 Difference]: Finished difference Result 1534 states and 2090 transitions. [2019-10-13 21:18:53,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:53,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-13 21:18:53,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:53,229 INFO L225 Difference]: With dead ends: 1534 [2019-10-13 21:18:53,229 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:18:53,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:18:53,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-13 21:18:53,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-13 21:18:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1059 transitions. [2019-10-13 21:18:53,293 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1059 transitions. Word has length 194 [2019-10-13 21:18:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:53,294 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1059 transitions. [2019-10-13 21:18:53,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:53,295 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1059 transitions. [2019-10-13 21:18:53,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:18:53,306 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:53,306 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:53,307 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:53,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:53,307 INFO L82 PathProgramCache]: Analyzing trace with hash -428530514, now seen corresponding path program 1 times [2019-10-13 21:18:53,307 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:53,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086401432] [2019-10-13 21:18:53,308 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:53,308 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:53,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:18:53,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086401432] [2019-10-13 21:18:53,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:53,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:18:53,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105610261] [2019-10-13 21:18:53,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:18:53,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:53,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:18:53,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:53,585 INFO L87 Difference]: Start difference. First operand 787 states and 1059 transitions. Second operand 4 states. [2019-10-13 21:18:54,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:54,304 INFO L93 Difference]: Finished difference Result 1505 states and 2036 transitions. [2019-10-13 21:18:54,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:18:54,304 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-13 21:18:54,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:54,312 INFO L225 Difference]: With dead ends: 1505 [2019-10-13 21:18:54,312 INFO L226 Difference]: Without dead ends: 784 [2019-10-13 21:18:54,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:18:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-13 21:18:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2019-10-13 21:18:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 21:18:54,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1042 transitions. [2019-10-13 21:18:54,364 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1042 transitions. Word has length 195 [2019-10-13 21:18:54,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:54,365 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1042 transitions. [2019-10-13 21:18:54,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:18:54,365 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1042 transitions. [2019-10-13 21:18:54,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-13 21:18:54,370 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:54,370 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:54,371 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:54,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:54,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1946876725, now seen corresponding path program 1 times [2019-10-13 21:18:54,371 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:54,372 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104244602] [2019-10-13 21:18:54,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:54,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:54,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:18:54,638 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104244602] [2019-10-13 21:18:54,638 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:54,638 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:54,639 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999347415] [2019-10-13 21:18:54,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:54,639 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:54,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:54,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:54,642 INFO L87 Difference]: Start difference. First operand 784 states and 1042 transitions. Second operand 3 states. [2019-10-13 21:18:54,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:54,696 INFO L93 Difference]: Finished difference Result 1221 states and 1603 transitions. [2019-10-13 21:18:54,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:54,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-13 21:18:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:54,705 INFO L225 Difference]: With dead ends: 1221 [2019-10-13 21:18:54,705 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:18:54,707 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:54,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:18:54,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 786. [2019-10-13 21:18:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 21:18:54,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1044 transitions. [2019-10-13 21:18:54,755 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1044 transitions. Word has length 222 [2019-10-13 21:18:54,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:54,756 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1044 transitions. [2019-10-13 21:18:54,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1044 transitions. [2019-10-13 21:18:54,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:18:54,760 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:54,761 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:54,761 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:54,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:54,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1749524217, now seen corresponding path program 1 times [2019-10-13 21:18:54,762 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:54,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425413899] [2019-10-13 21:18:54,763 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:54,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:54,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:54,963 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:18:54,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425413899] [2019-10-13 21:18:54,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:54,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:54,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646566478] [2019-10-13 21:18:54,967 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:54,967 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:54,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:54,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:54,970 INFO L87 Difference]: Start difference. First operand 786 states and 1044 transitions. Second operand 3 states. [2019-10-13 21:18:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:55,016 INFO L93 Difference]: Finished difference Result 1510 states and 2044 transitions. [2019-10-13 21:18:55,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:55,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-13 21:18:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:55,022 INFO L225 Difference]: With dead ends: 1510 [2019-10-13 21:18:55,022 INFO L226 Difference]: Without dead ends: 841 [2019-10-13 21:18:55,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-13 21:18:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2019-10-13 21:18:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2019-10-13 21:18:55,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1132 transitions. [2019-10-13 21:18:55,113 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1132 transitions. Word has length 230 [2019-10-13 21:18:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:55,117 INFO L462 AbstractCegarLoop]: Abstraction has 840 states and 1132 transitions. [2019-10-13 21:18:55,117 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1132 transitions. [2019-10-13 21:18:55,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-13 21:18:55,122 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:55,123 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:55,123 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:55,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:55,123 INFO L82 PathProgramCache]: Analyzing trace with hash -377999714, now seen corresponding path program 1 times [2019-10-13 21:18:55,124 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:55,124 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56614460] [2019-10-13 21:18:55,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,124 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:18:55,363 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56614460] [2019-10-13 21:18:55,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:55,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:55,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284983798] [2019-10-13 21:18:55,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:55,364 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:55,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:55,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:55,365 INFO L87 Difference]: Start difference. First operand 840 states and 1132 transitions. Second operand 3 states. [2019-10-13 21:18:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:55,424 INFO L93 Difference]: Finished difference Result 1413 states and 1904 transitions. [2019-10-13 21:18:55,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:55,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-13 21:18:55,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:55,431 INFO L225 Difference]: With dead ends: 1413 [2019-10-13 21:18:55,431 INFO L226 Difference]: Without dead ends: 992 [2019-10-13 21:18:55,433 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:55,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-13 21:18:55,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 991. [2019-10-13 21:18:55,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2019-10-13 21:18:55,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1343 transitions. [2019-10-13 21:18:55,489 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1343 transitions. Word has length 231 [2019-10-13 21:18:55,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:55,491 INFO L462 AbstractCegarLoop]: Abstraction has 991 states and 1343 transitions. [2019-10-13 21:18:55,491 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1343 transitions. [2019-10-13 21:18:55,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2019-10-13 21:18:55,503 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:55,503 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:55,504 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:55,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:55,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1431521957, now seen corresponding path program 1 times [2019-10-13 21:18:55,505 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:55,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865309008] [2019-10-13 21:18:55,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:55,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-13 21:18:55,961 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865309008] [2019-10-13 21:18:55,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:55,962 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:55,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014568012] [2019-10-13 21:18:55,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:55,964 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:55,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:55,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:55,965 INFO L87 Difference]: Start difference. First operand 991 states and 1343 transitions. Second operand 6 states. [2019-10-13 21:18:56,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:56,815 INFO L93 Difference]: Finished difference Result 2407 states and 3264 transitions. [2019-10-13 21:18:56,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:56,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 378 [2019-10-13 21:18:56,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:56,830 INFO L225 Difference]: With dead ends: 2407 [2019-10-13 21:18:56,830 INFO L226 Difference]: Without dead ends: 1881 [2019-10-13 21:18:56,835 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:18:56,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2019-10-13 21:18:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1870. [2019-10-13 21:18:56,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2019-10-13 21:18:56,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2561 transitions. [2019-10-13 21:18:56,962 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2561 transitions. Word has length 378 [2019-10-13 21:18:56,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:56,963 INFO L462 AbstractCegarLoop]: Abstraction has 1870 states and 2561 transitions. [2019-10-13 21:18:56,963 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:18:56,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2561 transitions. [2019-10-13 21:18:56,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-10-13 21:18:56,977 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:56,978 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:56,978 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:56,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1421916208, now seen corresponding path program 1 times [2019-10-13 21:18:56,979 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:56,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261486498] [2019-10-13 21:18:56,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:56,980 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:56,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-13 21:18:57,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261486498] [2019-10-13 21:18:57,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:57,341 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:18:57,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280873177] [2019-10-13 21:18:57,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:18:57,343 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:57,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:18:57,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:57,344 INFO L87 Difference]: Start difference. First operand 1870 states and 2561 transitions. Second operand 13 states. [2019-10-13 21:18:57,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:57,926 INFO L93 Difference]: Finished difference Result 2973 states and 4015 transitions. [2019-10-13 21:18:57,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:57,927 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 379 [2019-10-13 21:18:57,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:57,949 INFO L225 Difference]: With dead ends: 2973 [2019-10-13 21:18:57,949 INFO L226 Difference]: Without dead ends: 1916 [2019-10-13 21:18:57,954 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-13 21:18:57,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2019-10-13 21:18:58,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1912. [2019-10-13 21:18:58,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-10-13 21:18:58,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2618 transitions. [2019-10-13 21:18:58,091 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2618 transitions. Word has length 379 [2019-10-13 21:18:58,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:58,093 INFO L462 AbstractCegarLoop]: Abstraction has 1912 states and 2618 transitions. [2019-10-13 21:18:58,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:18:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2618 transitions. [2019-10-13 21:18:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-13 21:18:58,108 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:58,109 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:58,109 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2109443007, now seen corresponding path program 1 times [2019-10-13 21:18:58,110 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:58,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624955288] [2019-10-13 21:18:58,110 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-13 21:18:58,338 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624955288] [2019-10-13 21:18:58,338 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:58,338 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:58,339 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518867016] [2019-10-13 21:18:58,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:58,339 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:58,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:58,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:58,340 INFO L87 Difference]: Start difference. First operand 1912 states and 2618 transitions. Second operand 3 states. [2019-10-13 21:18:58,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:58,508 INFO L93 Difference]: Finished difference Result 5430 states and 7564 transitions. [2019-10-13 21:18:58,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:58,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2019-10-13 21:18:58,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:58,536 INFO L225 Difference]: With dead ends: 5430 [2019-10-13 21:18:58,536 INFO L226 Difference]: Without dead ends: 3554 [2019-10-13 21:18:58,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:58,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2019-10-13 21:18:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3547. [2019-10-13 21:18:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2019-10-13 21:18:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4907 transitions. [2019-10-13 21:18:58,762 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4907 transitions. Word has length 392 [2019-10-13 21:18:58,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:58,764 INFO L462 AbstractCegarLoop]: Abstraction has 3547 states and 4907 transitions. [2019-10-13 21:18:58,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:58,765 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4907 transitions. [2019-10-13 21:18:58,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2019-10-13 21:18:58,779 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:58,780 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:58,780 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:58,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:58,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1767957727, now seen corresponding path program 1 times [2019-10-13 21:18:58,781 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:58,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904173906] [2019-10-13 21:18:58,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,781 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:58,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-13 21:18:58,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904173906] [2019-10-13 21:18:58,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:58,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:58,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382388510] [2019-10-13 21:18:58,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:58,990 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:58,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:58,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:58,990 INFO L87 Difference]: Start difference. First operand 3547 states and 4907 transitions. Second operand 3 states. [2019-10-13 21:18:59,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:59,249 INFO L93 Difference]: Finished difference Result 8601 states and 12117 transitions. [2019-10-13 21:18:59,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:59,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2019-10-13 21:18:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:59,283 INFO L225 Difference]: With dead ends: 8601 [2019-10-13 21:18:59,284 INFO L226 Difference]: Without dead ends: 5102 [2019-10-13 21:18:59,297 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:59,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2019-10-13 21:18:59,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5099. [2019-10-13 21:18:59,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-10-13 21:18:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7066 transitions. [2019-10-13 21:18:59,642 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7066 transitions. Word has length 394 [2019-10-13 21:18:59,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:59,643 INFO L462 AbstractCegarLoop]: Abstraction has 5099 states and 7066 transitions. [2019-10-13 21:18:59,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:59,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7066 transitions. [2019-10-13 21:18:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2019-10-13 21:18:59,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:59,755 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:59,755 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:59,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1960027132, now seen corresponding path program 1 times [2019-10-13 21:18:59,756 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:59,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128465171] [2019-10-13 21:18:59,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:59,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:59,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:59,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:00,257 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:19:00,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128465171] [2019-10-13 21:19:00,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451923604] [2019-10-13 21:19:00,257 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 [2019-10-13 21:19:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:01,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 4230 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:19:01,144 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 21:19:01,727 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:02,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:02,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:19:02,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:03,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:03,456 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-13 21:19:03,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:03,457 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24, 11] total 41 [2019-10-13 21:19:03,457 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787564503] [2019-10-13 21:19:03,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:19:03,458 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:03,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:19:03,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1531, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:19:03,459 INFO L87 Difference]: Start difference. First operand 5099 states and 7066 transitions. Second operand 11 states. [2019-10-13 21:19:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:06,194 INFO L93 Difference]: Finished difference Result 10090 states and 14023 transitions. [2019-10-13 21:19:06,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:19:06,194 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 362 [2019-10-13 21:19:06,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:06,227 INFO L225 Difference]: With dead ends: 10090 [2019-10-13 21:19:06,228 INFO L226 Difference]: Without dead ends: 5141 [2019-10-13 21:19:06,245 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 708 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=1843, Unknown=0, NotChecked=0, Total=1980 [2019-10-13 21:19:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2019-10-13 21:19:06,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5141. [2019-10-13 21:19:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2019-10-13 21:19:06,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 7120 transitions. [2019-10-13 21:19:06,612 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 7120 transitions. Word has length 362 [2019-10-13 21:19:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:06,613 INFO L462 AbstractCegarLoop]: Abstraction has 5141 states and 7120 transitions. [2019-10-13 21:19:06,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:19:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 7120 transitions. [2019-10-13 21:19:06,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-13 21:19:06,636 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:06,637 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:06,858 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:06,858 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:06,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:06,859 INFO L82 PathProgramCache]: Analyzing trace with hash -983027631, now seen corresponding path program 1 times [2019-10-13 21:19:06,859 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:06,859 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883306631] [2019-10-13 21:19:06,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:06,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:06,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:19:07,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883306631] [2019-10-13 21:19:07,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110463644] [2019-10-13 21:19:07,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:08,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:19:08,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:09,066 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 21:19:09,066 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:09,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:10,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:10,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:10,298 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-13 21:19:10,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:10,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [24, 9] total 37 [2019-10-13 21:19:10,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057285374] [2019-10-13 21:19:10,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:19:10,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:10,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:19:10,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1237, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:19:10,301 INFO L87 Difference]: Start difference. First operand 5141 states and 7120 transitions. Second operand 9 states. [2019-10-13 21:19:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:13,036 INFO L93 Difference]: Finished difference Result 10099 states and 14050 transitions. [2019-10-13 21:19:13,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:19:13,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 363 [2019-10-13 21:19:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:13,064 INFO L225 Difference]: With dead ends: 10099 [2019-10-13 21:19:13,064 INFO L226 Difference]: Without dead ends: 5153 [2019-10-13 21:19:13,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 715 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:19:13,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2019-10-13 21:19:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2019-10-13 21:19:13,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2019-10-13 21:19:13,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7135 transitions. [2019-10-13 21:19:13,321 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7135 transitions. Word has length 363 [2019-10-13 21:19:13,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:13,322 INFO L462 AbstractCegarLoop]: Abstraction has 5153 states and 7135 transitions. [2019-10-13 21:19:13,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:19:13,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7135 transitions. [2019-10-13 21:19:13,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-13 21:19:13,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:13,344 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:13,559 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:13,560 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:13,560 INFO L82 PathProgramCache]: Analyzing trace with hash -651685919, now seen corresponding path program 1 times [2019-10-13 21:19:13,561 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:13,561 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517206900] [2019-10-13 21:19:13,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:13,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:13,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:19:14,044 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517206900] [2019-10-13 21:19:14,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898662455] [2019-10-13 21:19:14,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:15,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 4232 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:19:15,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-13 21:19:16,049 INFO L321 TraceCheckSpWp]: Computing backward predicates...