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_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:59,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:59,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:59,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:59,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:59,744 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:59,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:59,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:59,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:59,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:59,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:59,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:59,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:59,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:59,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:59,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:59,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:59,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:59,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:59,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:59,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:59,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:59,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:59,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:59,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:59,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:59,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:59,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:59,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:59,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:59,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:59,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:59,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:59,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:59,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:59,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:59,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:59,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:59,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:59,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:59,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:59,785 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:59,808 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:59,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:59,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:59,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:59,810 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:59,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:59,811 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:59,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:59,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:59,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:59,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:59,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:59,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:59,812 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:59,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:59,812 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:59,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:59,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:59,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:59,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:59,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:59,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:59,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:59,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:59,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:59,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:59,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:59,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:59,815 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 21:18:00,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:18:00,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:18:00,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:18:00,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:18:00,111 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:18:00,112 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product14.cil.c [2019-10-13 21:18:00,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12767cbf/3add2794a0504669a94babc28e1bf7d3/FLAGcbaee61c8 [2019-10-13 21:18:00,854 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:18:00,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product14.cil.c [2019-10-13 21:18:00,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12767cbf/3add2794a0504669a94babc28e1bf7d3/FLAGcbaee61c8 [2019-10-13 21:18:01,091 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e12767cbf/3add2794a0504669a94babc28e1bf7d3 [2019-10-13 21:18:01,102 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:18:01,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:18:01,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:01,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:18:01,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:18:01,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:01" (1/1) ... [2019-10-13 21:18:01,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a66102e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:01, skipping insertion in model container [2019-10-13 21:18:01,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:01" (1/1) ... [2019-10-13 21:18:01,116 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:18:01,211 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:18:02,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:02,036 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:18:02,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:02,269 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:18:02,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02 WrapperNode [2019-10-13 21:18:02,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:02,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:18:02,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:18:02,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:18:02,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (1/1) ... [2019-10-13 21:18:02,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:18:02,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:18:02,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:18:02,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:18:02,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (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 21:18:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:18:02,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:18:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:02,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:18:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:18:02,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:18:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:18:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:18:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:18:02,538 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:18:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:18:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:18:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:18:02,539 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:18:02,540 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:18:02,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:18:02,540 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:18:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:18:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:18:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:18:02,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:18:02,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:18:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:18:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:18:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:18:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:02,543 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:18:02,544 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:18:02,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:18:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:18:02,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:18:02,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:18:02,549 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:18:02,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:18:02,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:18:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:18:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:18:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:18:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:18:02,552 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:18:02,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:18:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:18:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:18:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:18:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:18:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:18:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:18:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:18:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:18:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:18:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:18:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:18:02,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:18:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:18:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:18:02,558 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:18:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:18:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:18:02,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:18:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:18:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:18:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:18:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:18:02,562 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:18:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:18:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:18:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:18:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:18:02,563 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:18:02,564 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:18:02,565 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:18:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:18:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:18:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:18:02,566 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:18:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:18:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:18:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:18:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:02,567 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:18:02,568 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:18:02,569 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:18:02,570 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:18:02,571 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:18:02,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:18:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:18:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:18:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:18:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:18:02,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:18:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:18:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:18:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:18:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:18:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:18:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:18:02,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:18:02,577 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:18:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:18:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:18:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:18:02,578 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:18:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:18:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:18:02,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:05,137 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:05,138 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:05,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:05 BoogieIcfgContainer [2019-10-13 21:18:05,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:05,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:05,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:05,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:05,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:18:01" (1/3) ... [2019-10-13 21:18:05,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32270912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:05, skipping insertion in model container [2019-10-13 21:18:05,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:02" (2/3) ... [2019-10-13 21:18:05,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32270912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:05, skipping insertion in model container [2019-10-13 21:18:05,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:05" (3/3) ... [2019-10-13 21:18:05,150 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product14.cil.c [2019-10-13 21:18:05,161 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:05,175 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:05,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:05,240 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:05,240 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:05,240 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:05,240 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:05,241 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:05,241 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:05,241 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:05,241 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2019-10-13 21:18:05,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:18:05,325 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:05,327 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:05,331 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:05,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:05,342 INFO L82 PathProgramCache]: Analyzing trace with hash 601456659, now seen corresponding path program 1 times [2019-10-13 21:18:05,353 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:05,354 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776961863] [2019-10-13 21:18:05,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:06,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776961863] [2019-10-13 21:18:06,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:18:06,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126542029] [2019-10-13 21:18:06,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:18:06,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:18:06,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:06,148 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 2 states. [2019-10-13 21:18:06,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,222 INFO L93 Difference]: Finished difference Result 695 states and 958 transitions. [2019-10-13 21:18:06,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:18:06,224 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 21:18:06,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,262 INFO L225 Difference]: With dead ends: 695 [2019-10-13 21:18:06,265 INFO L226 Difference]: Without dead ends: 470 [2019-10-13 21:18:06,277 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:06,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-10-13 21:18:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2019-10-13 21:18:06,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-10-13 21:18:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 651 transitions. [2019-10-13 21:18:06,395 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 651 transitions. Word has length 154 [2019-10-13 21:18:06,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,397 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 651 transitions. [2019-10-13 21:18:06,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:18:06,398 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 651 transitions. [2019-10-13 21:18:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:18:06,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,404 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash -855609359, now seen corresponding path program 1 times [2019-10-13 21:18:06,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693525056] [2019-10-13 21:18:06,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:06,722 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693525056] [2019-10-13 21:18:06,723 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,723 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:06,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215297985] [2019-10-13 21:18:06,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:06,732 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:06,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:06,733 INFO L87 Difference]: Start difference. First operand 470 states and 651 transitions. Second operand 3 states. [2019-10-13 21:18:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,830 INFO L93 Difference]: Finished difference Result 678 states and 924 transitions. [2019-10-13 21:18:06,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:06,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 21:18:06,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,840 INFO L225 Difference]: With dead ends: 678 [2019-10-13 21:18:06,840 INFO L226 Difference]: Without dead ends: 473 [2019-10-13 21:18:06,843 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 21:18:06,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-13 21:18:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 472. [2019-10-13 21:18:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-10-13 21:18:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 653 transitions. [2019-10-13 21:18:06,889 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 653 transitions. Word has length 155 [2019-10-13 21:18:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,890 INFO L462 AbstractCegarLoop]: Abstraction has 472 states and 653 transitions. [2019-10-13 21:18:06,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:06,891 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 653 transitions. [2019-10-13 21:18:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 21:18:06,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,898 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,898 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,899 INFO L82 PathProgramCache]: Analyzing trace with hash 85272997, now seen corresponding path program 1 times [2019-10-13 21:18:06,899 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822834784] [2019-10-13 21:18:06,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,900 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:07,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822834784] [2019-10-13 21:18:07,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:07,174 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:07,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153859607] [2019-10-13 21:18:07,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:07,178 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:07,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:07,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:07,179 INFO L87 Difference]: Start difference. First operand 472 states and 653 transitions. Second operand 3 states. [2019-10-13 21:18:07,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:07,240 INFO L93 Difference]: Finished difference Result 920 states and 1304 transitions. [2019-10-13 21:18:07,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:07,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-13 21:18:07,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:07,248 INFO L225 Difference]: With dead ends: 920 [2019-10-13 21:18:07,248 INFO L226 Difference]: Without dead ends: 513 [2019-10-13 21:18:07,251 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 21:18:07,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2019-10-13 21:18:07,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 512. [2019-10-13 21:18:07,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2019-10-13 21:18:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 722 transitions. [2019-10-13 21:18:07,291 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 722 transitions. Word has length 161 [2019-10-13 21:18:07,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:07,293 INFO L462 AbstractCegarLoop]: Abstraction has 512 states and 722 transitions. [2019-10-13 21:18:07,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 722 transitions. [2019-10-13 21:18:07,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 21:18:07,303 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:07,303 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:07,303 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:07,304 INFO L82 PathProgramCache]: Analyzing trace with hash 549891817, now seen corresponding path program 1 times [2019-10-13 21:18:07,304 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:07,304 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824074988] [2019-10-13 21:18:07,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,305 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:07,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:18:08,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824074988] [2019-10-13 21:18:08,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:08,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-13 21:18:08,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909027946] [2019-10-13 21:18:08,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-13 21:18:08,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-13 21:18:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:18:08,406 INFO L87 Difference]: Start difference. First operand 512 states and 722 transitions. Second operand 31 states. [2019-10-13 21:18:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:13,895 INFO L93 Difference]: Finished difference Result 1474 states and 2120 transitions. [2019-10-13 21:18:13,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:18:13,901 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 162 [2019-10-13 21:18:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:13,911 INFO L225 Difference]: With dead ends: 1474 [2019-10-13 21:18:13,911 INFO L226 Difference]: Without dead ends: 998 [2019-10-13 21:18:13,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-13 21:18:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2019-10-13 21:18:13,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 768. [2019-10-13 21:18:13,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-13 21:18:13,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1133 transitions. [2019-10-13 21:18:13,959 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1133 transitions. Word has length 162 [2019-10-13 21:18:13,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:13,960 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1133 transitions. [2019-10-13 21:18:13,960 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-13 21:18:13,960 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1133 transitions. [2019-10-13 21:18:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 21:18:13,966 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:13,966 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:13,967 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:13,967 INFO L82 PathProgramCache]: Analyzing trace with hash 128931203, now seen corresponding path program 1 times [2019-10-13 21:18:13,968 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:13,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420205705] [2019-10-13 21:18:13,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,969 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:18:14,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420205705] [2019-10-13 21:18:14,710 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193747256] [2019-10-13 21:18:14,711 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 21:18:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:15,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 2525 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:18:15,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:18:15,492 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:18:15,493 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:18:15,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:15,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:18:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:18:16,045 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:18:16,045 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-13 21:18:16,045 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729683415] [2019-10-13 21:18:16,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:16,046 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:16,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:16,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:18:16,048 INFO L87 Difference]: Start difference. First operand 768 states and 1133 transitions. Second operand 7 states. [2019-10-13 21:18:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:17,374 INFO L93 Difference]: Finished difference Result 1489 states and 2219 transitions. [2019-10-13 21:18:17,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:17,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2019-10-13 21:18:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:17,384 INFO L225 Difference]: With dead ends: 1489 [2019-10-13 21:18:17,384 INFO L226 Difference]: Without dead ends: 772 [2019-10-13 21:18:17,389 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:18:17,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2019-10-13 21:18:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 772. [2019-10-13 21:18:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2019-10-13 21:18:17,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1138 transitions. [2019-10-13 21:18:17,444 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1138 transitions. Word has length 163 [2019-10-13 21:18:17,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:17,445 INFO L462 AbstractCegarLoop]: Abstraction has 772 states and 1138 transitions. [2019-10-13 21:18:17,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:17,445 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1138 transitions. [2019-10-13 21:18:17,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 21:18:17,449 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:17,450 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:17,659 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:18:17,660 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:17,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:17,661 INFO L82 PathProgramCache]: Analyzing trace with hash -720765904, now seen corresponding path program 1 times [2019-10-13 21:18:17,661 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:17,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744747838] [2019-10-13 21:18:17,662 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,662 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:17,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:18:18,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744747838] [2019-10-13 21:18:18,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:18,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:18:18,386 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583677774] [2019-10-13 21:18:18,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:18:18,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:18,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:18:18,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:18:18,387 INFO L87 Difference]: Start difference. First operand 772 states and 1138 transitions. Second operand 26 states. [2019-10-13 21:18:26,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:26,897 INFO L93 Difference]: Finished difference Result 2340 states and 3347 transitions. [2019-10-13 21:18:26,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-10-13 21:18:26,898 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2019-10-13 21:18:26,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:26,918 INFO L225 Difference]: With dead ends: 2340 [2019-10-13 21:18:26,919 INFO L226 Difference]: Without dead ends: 2144 [2019-10-13 21:18:26,922 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=710, Invalid=5452, Unknown=0, NotChecked=0, Total=6162 [2019-10-13 21:18:26,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2144 states. [2019-10-13 21:18:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2144 to 1688. [2019-10-13 21:18:27,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1688 states. [2019-10-13 21:18:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1688 states to 1688 states and 2483 transitions. [2019-10-13 21:18:27,025 INFO L78 Accepts]: Start accepts. Automaton has 1688 states and 2483 transitions. Word has length 164 [2019-10-13 21:18:27,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:27,026 INFO L462 AbstractCegarLoop]: Abstraction has 1688 states and 2483 transitions. [2019-10-13 21:18:27,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:18:27,027 INFO L276 IsEmpty]: Start isEmpty. Operand 1688 states and 2483 transitions. [2019-10-13 21:18:27,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:27,038 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:27,038 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:27,039 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:27,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:27,039 INFO L82 PathProgramCache]: Analyzing trace with hash 740705910, now seen corresponding path program 1 times [2019-10-13 21:18:27,039 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:27,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129367783] [2019-10-13 21:18:27,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:27,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:27,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:27,232 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:18:27,232 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129367783] [2019-10-13 21:18:27,233 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:27,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:27,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812178886] [2019-10-13 21:18:27,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:27,235 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:27,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:27,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:27,236 INFO L87 Difference]: Start difference. First operand 1688 states and 2483 transitions. Second operand 5 states. [2019-10-13 21:18:27,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:27,346 INFO L93 Difference]: Finished difference Result 2078 states and 3000 transitions. [2019-10-13 21:18:27,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:27,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-13 21:18:27,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:27,362 INFO L225 Difference]: With dead ends: 2078 [2019-10-13 21:18:27,362 INFO L226 Difference]: Without dead ends: 1685 [2019-10-13 21:18:27,366 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:27,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2019-10-13 21:18:27,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2019-10-13 21:18:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1685 states. [2019-10-13 21:18:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2478 transitions. [2019-10-13 21:18:27,513 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2478 transitions. Word has length 165 [2019-10-13 21:18:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:27,514 INFO L462 AbstractCegarLoop]: Abstraction has 1685 states and 2478 transitions. [2019-10-13 21:18:27,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:27,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2478 transitions. [2019-10-13 21:18:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:27,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:27,527 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:27,527 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:27,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:27,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1032194206, now seen corresponding path program 1 times [2019-10-13 21:18:27,528 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:27,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233920558] [2019-10-13 21:18:27,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:27,529 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:27,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:18:27,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233920558] [2019-10-13 21:18:27,862 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:27,862 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:18:27,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107937719] [2019-10-13 21:18:27,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:18:27,865 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:27,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:18:27,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:18:27,866 INFO L87 Difference]: Start difference. First operand 1685 states and 2478 transitions. Second operand 11 states. [2019-10-13 21:18:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:28,392 INFO L93 Difference]: Finished difference Result 2351 states and 3398 transitions. [2019-10-13 21:18:28,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:18:28,392 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2019-10-13 21:18:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:28,405 INFO L225 Difference]: With dead ends: 2351 [2019-10-13 21:18:28,405 INFO L226 Difference]: Without dead ends: 1765 [2019-10-13 21:18:28,409 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2019-10-13 21:18:28,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2019-10-13 21:18:28,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1765 states. [2019-10-13 21:18:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2604 transitions. [2019-10-13 21:18:28,527 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2604 transitions. Word has length 165 [2019-10-13 21:18:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:28,529 INFO L462 AbstractCegarLoop]: Abstraction has 1765 states and 2604 transitions. [2019-10-13 21:18:28,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:18:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2604 transitions. [2019-10-13 21:18:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:28,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:28,537 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:28,538 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:28,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1814174100, now seen corresponding path program 1 times [2019-10-13 21:18:28,539 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:28,540 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148289837] [2019-10-13 21:18:28,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:28,540 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:28,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:28,721 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:18:28,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148289837] [2019-10-13 21:18:28,722 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:28,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:28,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257238766] [2019-10-13 21:18:28,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:28,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:28,724 INFO L87 Difference]: Start difference. First operand 1765 states and 2604 transitions. Second operand 5 states. [2019-10-13 21:18:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:30,019 INFO L93 Difference]: Finished difference Result 4217 states and 6112 transitions. [2019-10-13 21:18:30,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:30,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-13 21:18:30,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:30,051 INFO L225 Difference]: With dead ends: 4217 [2019-10-13 21:18:30,052 INFO L226 Difference]: Without dead ends: 3584 [2019-10-13 21:18:30,058 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:30,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2019-10-13 21:18:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3324. [2019-10-13 21:18:30,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3324 states. [2019-10-13 21:18:30,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4809 transitions. [2019-10-13 21:18:30,294 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4809 transitions. Word has length 165 [2019-10-13 21:18:30,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:30,295 INFO L462 AbstractCegarLoop]: Abstraction has 3324 states and 4809 transitions. [2019-10-13 21:18:30,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4809 transitions. [2019-10-13 21:18:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:30,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:30,306 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:30,306 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:30,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:30,306 INFO L82 PathProgramCache]: Analyzing trace with hash -195929741, now seen corresponding path program 1 times [2019-10-13 21:18:30,307 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:30,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369461137] [2019-10-13 21:18:30,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:30,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:30,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:18:30,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369461137] [2019-10-13 21:18:30,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:30,482 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:18:30,482 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536952031] [2019-10-13 21:18:30,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:18:30,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:30,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:18:30,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:18:30,484 INFO L87 Difference]: Start difference. First operand 3324 states and 4809 transitions. Second operand 9 states. [2019-10-13 21:18:30,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:30,824 INFO L93 Difference]: Finished difference Result 3771 states and 5413 transitions. [2019-10-13 21:18:30,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:18:30,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2019-10-13 21:18:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:30,833 INFO L225 Difference]: With dead ends: 3771 [2019-10-13 21:18:30,833 INFO L226 Difference]: Without dead ends: 1258 [2019-10-13 21:18:30,842 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:18:30,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2019-10-13 21:18:30,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 1256. [2019-10-13 21:18:30,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-13 21:18:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1797 transitions. [2019-10-13 21:18:30,908 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1797 transitions. Word has length 165 [2019-10-13 21:18:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:30,909 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1797 transitions. [2019-10-13 21:18:30,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:18:30,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1797 transitions. [2019-10-13 21:18:30,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:30,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:30,914 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:30,914 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:30,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:30,915 INFO L82 PathProgramCache]: Analyzing trace with hash -822700062, now seen corresponding path program 2 times [2019-10-13 21:18:30,915 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:30,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396594659] [2019-10-13 21:18:30,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:30,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:30,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-13 21:18:31,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396594659] [2019-10-13 21:18:31,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:31,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:18:31,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072320460] [2019-10-13 21:18:31,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:18:31,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:31,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:18:31,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:18:31,323 INFO L87 Difference]: Start difference. First operand 1256 states and 1797 transitions. Second operand 24 states.