java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:05,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:05,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:05,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:05,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:05,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:05,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:05,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:05,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:05,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:05,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:05,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:05,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:05,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:05,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:05,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:05,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:05,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:05,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:05,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:05,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:05,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:05,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:05,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:05,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:05,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:05,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:05,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:05,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:05,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:05,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:05,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:05,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:05,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:05,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:05,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:05,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:05,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:05,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:05,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:05,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:05,065 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 21:14:05,078 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:05,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:05,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:05,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:05,080 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:05,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:05,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:05,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:05,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:05,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:05,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:05,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:05,082 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:05,082 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:05,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:05,083 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:05,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:05,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:05,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:05,084 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:05,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:05,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:05,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:05,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:05,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:05,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:05,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:05,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:05,085 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 21:14:05,391 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:05,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:05,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:05,412 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:05,413 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:05,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2019-10-13 21:14:05,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac43e6c2/2b25934b70924272aec1e9d33a9fe074/FLAG056d9a1c9 [2019-10-13 21:14:06,102 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:06,103 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product21.cil.c [2019-10-13 21:14:06,136 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac43e6c2/2b25934b70924272aec1e9d33a9fe074/FLAG056d9a1c9 [2019-10-13 21:14:06,282 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac43e6c2/2b25934b70924272aec1e9d33a9fe074 [2019-10-13 21:14:06,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:06,295 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:06,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:06,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:06,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:06,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ddc826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06, skipping insertion in model container [2019-10-13 21:14:06,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,312 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:06,391 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:07,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:07,234 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:07,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:07,477 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:07,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07 WrapperNode [2019-10-13 21:14:07,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:07,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:07,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:07,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:07,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:07,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:07,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:07,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:07,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (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 21:14:07,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:07,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:07,733 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:07,734 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:07,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:07,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:07,739 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:07,740 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:07,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:07,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:07,745 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:07,746 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:14:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:14:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:07,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:07,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:07,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:07,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:07,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:07,752 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:07,753 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:07,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:07,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:07,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:07,758 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:14:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:14:07,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:07,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:07,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:07,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:07,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:07,763 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:07,764 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:07,765 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:07,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:07,771 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:14:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:14:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:07,778 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:07,779 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:07,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:07,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:07,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:07,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:07,784 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:07,785 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:07,786 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:07,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:07,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:07,789 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:07,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:07,791 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:10,007 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:10,008 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:10,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:10 BoogieIcfgContainer [2019-10-13 21:14:10,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:10,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:10,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:10,018 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:10,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:06" (1/3) ... [2019-10-13 21:14:10,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe2674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:10, skipping insertion in model container [2019-10-13 21:14:10,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (2/3) ... [2019-10-13 21:14:10,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe2674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:10, skipping insertion in model container [2019-10-13 21:14:10,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:10" (3/3) ... [2019-10-13 21:14:10,023 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product21.cil.c [2019-10-13 21:14:10,033 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:10,048 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:10,062 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:10,115 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:10,115 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:10,115 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:10,115 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:10,115 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:10,116 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:10,116 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:10,116 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:10,159 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states. [2019-10-13 21:14:10,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:14:10,200 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:10,202 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 21:14:10,206 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:10,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:10,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1310424730, now seen corresponding path program 1 times [2019-10-13 21:14:10,223 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:10,224 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487191068] [2019-10-13 21:14:10,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,226 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:10,964 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 21:14:10,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487191068] [2019-10-13 21:14:10,966 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:10,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:10,966 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394033436] [2019-10-13 21:14:10,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:10,973 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:10,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:10,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:10,989 INFO L87 Difference]: Start difference. First operand 569 states. Second operand 2 states. [2019-10-13 21:14:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,084 INFO L93 Difference]: Finished difference Result 824 states and 1118 transitions. [2019-10-13 21:14:11,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:11,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 21:14:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,122 INFO L225 Difference]: With dead ends: 824 [2019-10-13 21:14:11,123 INFO L226 Difference]: Without dead ends: 540 [2019-10-13 21:14:11,134 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 21:14:11,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-10-13 21:14:11,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2019-10-13 21:14:11,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2019-10-13 21:14:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 738 transitions. [2019-10-13 21:14:11,235 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 738 transitions. Word has length 154 [2019-10-13 21:14:11,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,237 INFO L462 AbstractCegarLoop]: Abstraction has 540 states and 738 transitions. [2019-10-13 21:14:11,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 738 transitions. [2019-10-13 21:14:11,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:14:11,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,248 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 21:14:11,249 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,250 INFO L82 PathProgramCache]: Analyzing trace with hash 684326183, now seen corresponding path program 1 times [2019-10-13 21:14:11,250 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313520183] [2019-10-13 21:14:11,250 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,495 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 21:14:11,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313520183] [2019-10-13 21:14:11,495 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,495 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:11,496 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706567316] [2019-10-13 21:14:11,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:11,498 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:11,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,499 INFO L87 Difference]: Start difference. First operand 540 states and 738 transitions. Second operand 3 states. [2019-10-13 21:14:11,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,565 INFO L93 Difference]: Finished difference Result 807 states and 1084 transitions. [2019-10-13 21:14:11,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:11,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 21:14:11,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,574 INFO L225 Difference]: With dead ends: 807 [2019-10-13 21:14:11,574 INFO L226 Difference]: Without dead ends: 543 [2019-10-13 21:14:11,577 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 21:14:11,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-13 21:14:11,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 542. [2019-10-13 21:14:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-10-13 21:14:11,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 740 transitions. [2019-10-13 21:14:11,628 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 740 transitions. Word has length 155 [2019-10-13 21:14:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,629 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 740 transitions. [2019-10-13 21:14:11,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 740 transitions. [2019-10-13 21:14:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-13 21:14:11,633 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,633 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 21:14:11,634 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1057468101, now seen corresponding path program 1 times [2019-10-13 21:14:11,634 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406282051] [2019-10-13 21:14:11,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,853 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 21:14:11,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406282051] [2019-10-13 21:14:11,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:11,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979848904] [2019-10-13 21:14:11,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:11,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:11,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:11,858 INFO L87 Difference]: Start difference. First operand 542 states and 740 transitions. Second operand 3 states. [2019-10-13 21:14:11,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,911 INFO L93 Difference]: Finished difference Result 1062 states and 1481 transitions. [2019-10-13 21:14:11,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:11,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-13 21:14:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,920 INFO L225 Difference]: With dead ends: 1062 [2019-10-13 21:14:11,920 INFO L226 Difference]: Without dead ends: 585 [2019-10-13 21:14:11,922 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 21:14:11,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2019-10-13 21:14:11,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 584. [2019-10-13 21:14:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-13 21:14:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 812 transitions. [2019-10-13 21:14:11,964 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 812 transitions. Word has length 161 [2019-10-13 21:14:11,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,965 INFO L462 AbstractCegarLoop]: Abstraction has 584 states and 812 transitions. [2019-10-13 21:14:11,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:11,965 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 812 transitions. [2019-10-13 21:14:11,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-13 21:14:11,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,969 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 21:14:11,970 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,970 INFO L82 PathProgramCache]: Analyzing trace with hash 521417968, now seen corresponding path program 1 times [2019-10-13 21:14:11,970 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329456179] [2019-10-13 21:14:11,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:13,186 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 21:14:13,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329456179] [2019-10-13 21:14:13,187 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:13,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-13 21:14:13,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013010190] [2019-10-13 21:14:13,188 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-13 21:14:13,188 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:13,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-13 21:14:13,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-13 21:14:13,190 INFO L87 Difference]: Start difference. First operand 584 states and 812 transitions. Second operand 31 states. [2019-10-13 21:14:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:18,741 INFO L93 Difference]: Finished difference Result 1690 states and 2394 transitions. [2019-10-13 21:14:18,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:14:18,742 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 162 [2019-10-13 21:14:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:18,750 INFO L225 Difference]: With dead ends: 1690 [2019-10-13 21:14:18,750 INFO L226 Difference]: Without dead ends: 1142 [2019-10-13 21:14:18,753 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-13 21:14:18,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2019-10-13 21:14:18,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 853. [2019-10-13 21:14:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2019-10-13 21:14:18,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1240 transitions. [2019-10-13 21:14:18,807 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1240 transitions. Word has length 162 [2019-10-13 21:14:18,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:18,808 INFO L462 AbstractCegarLoop]: Abstraction has 853 states and 1240 transitions. [2019-10-13 21:14:18,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-13 21:14:18,808 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1240 transitions. [2019-10-13 21:14:18,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 21:14:18,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:18,813 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 21:14:18,813 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:18,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:18,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1681411932, now seen corresponding path program 1 times [2019-10-13 21:14:18,814 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:18,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371357704] [2019-10-13 21:14:18,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:18,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:19,680 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 21:14:19,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371357704] [2019-10-13 21:14:19,681 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300117691] [2019-10-13 21:14:19,681 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 21:14:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 2641 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:14:20,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:14:20,516 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 21:14:20,516 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:14:20,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:20,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:21,023 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 21:14:21,023 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:14:21,024 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-13 21:14:21,024 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574332039] [2019-10-13 21:14:21,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:14:21,025 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:21,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:14:21,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:21,026 INFO L87 Difference]: Start difference. First operand 853 states and 1240 transitions. Second operand 7 states. [2019-10-13 21:14:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:22,132 INFO L93 Difference]: Finished difference Result 1659 states and 2433 transitions. [2019-10-13 21:14:22,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:22,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2019-10-13 21:14:22,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:22,139 INFO L225 Difference]: With dead ends: 1659 [2019-10-13 21:14:22,139 INFO L226 Difference]: Without dead ends: 857 [2019-10-13 21:14:22,142 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:14:22,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2019-10-13 21:14:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 857. [2019-10-13 21:14:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2019-10-13 21:14:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1245 transitions. [2019-10-13 21:14:22,184 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1245 transitions. Word has length 163 [2019-10-13 21:14:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:22,185 INFO L462 AbstractCegarLoop]: Abstraction has 857 states and 1245 transitions. [2019-10-13 21:14:22,185 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:14:22,185 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1245 transitions. [2019-10-13 21:14:22,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-13 21:14:22,189 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:22,190 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 21:14:22,398 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:22,398 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:22,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:22,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1286349098, now seen corresponding path program 1 times [2019-10-13 21:14:22,399 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:22,400 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101353612] [2019-10-13 21:14:22,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:22,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:22,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:23,315 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 21:14:23,316 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101353612] [2019-10-13 21:14:23,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:23,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:14:23,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053488246] [2019-10-13 21:14:23,318 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:14:23,318 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:23,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:14:23,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:14:23,319 INFO L87 Difference]: Start difference. First operand 857 states and 1245 transitions. Second operand 26 states. [2019-10-13 21:14:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:33,006 INFO L93 Difference]: Finished difference Result 2748 states and 3875 transitions. [2019-10-13 21:14:33,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-13 21:14:33,006 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2019-10-13 21:14:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:33,033 INFO L225 Difference]: With dead ends: 2748 [2019-10-13 21:14:33,033 INFO L226 Difference]: Without dead ends: 2493 [2019-10-13 21:14:33,044 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1520 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-13 21:14:33,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2019-10-13 21:14:33,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1924. [2019-10-13 21:14:33,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1924 states. [2019-10-13 21:14:33,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1924 states to 1924 states and 2794 transitions. [2019-10-13 21:14:33,176 INFO L78 Accepts]: Start accepts. Automaton has 1924 states and 2794 transitions. Word has length 164 [2019-10-13 21:14:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:33,177 INFO L462 AbstractCegarLoop]: Abstraction has 1924 states and 2794 transitions. [2019-10-13 21:14:33,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:14:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1924 states and 2794 transitions. [2019-10-13 21:14:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:33,184 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:33,185 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 21:14:33,185 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:33,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:33,185 INFO L82 PathProgramCache]: Analyzing trace with hash -780705449, now seen corresponding path program 1 times [2019-10-13 21:14:33,186 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:33,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077342182] [2019-10-13 21:14:33,186 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:33,186 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:33,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:33,589 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 21:14:33,590 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077342182] [2019-10-13 21:14:33,590 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:33,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:14:33,591 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43968792] [2019-10-13 21:14:33,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:14:33,591 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:33,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:14:33,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:14:33,592 INFO L87 Difference]: Start difference. First operand 1924 states and 2794 transitions. Second operand 11 states. [2019-10-13 21:14:34,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:34,083 INFO L93 Difference]: Finished difference Result 2791 states and 3999 transitions. [2019-10-13 21:14:34,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:14:34,083 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2019-10-13 21:14:34,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:34,096 INFO L225 Difference]: With dead ends: 2791 [2019-10-13 21:14:34,096 INFO L226 Difference]: Without dead ends: 2023 [2019-10-13 21:14:34,101 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 21:14:34,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-10-13 21:14:34,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2023. [2019-10-13 21:14:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2023 states. [2019-10-13 21:14:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2023 states to 2023 states and 2951 transitions. [2019-10-13 21:14:34,239 INFO L78 Accepts]: Start accepts. Automaton has 2023 states and 2951 transitions. Word has length 165 [2019-10-13 21:14:34,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:34,240 INFO L462 AbstractCegarLoop]: Abstraction has 2023 states and 2951 transitions. [2019-10-13 21:14:34,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:14:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2023 states and 2951 transitions. [2019-10-13 21:14:34,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:34,251 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:34,251 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 21:14:34,251 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:34,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:34,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2065662857, now seen corresponding path program 1 times [2019-10-13 21:14:34,252 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:34,252 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539427468] [2019-10-13 21:14:34,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:34,253 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:34,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:34,402 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 21:14:34,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539427468] [2019-10-13 21:14:34,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:34,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:34,404 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279511050] [2019-10-13 21:14:34,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:34,406 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:34,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:34,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:34,406 INFO L87 Difference]: Start difference. First operand 2023 states and 2951 transitions. Second operand 5 states. [2019-10-13 21:14:35,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:35,718 INFO L93 Difference]: Finished difference Result 5085 states and 7290 transitions. [2019-10-13 21:14:35,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:35,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2019-10-13 21:14:35,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:35,743 INFO L225 Difference]: With dead ends: 5085 [2019-10-13 21:14:35,743 INFO L226 Difference]: Without dead ends: 4263 [2019-10-13 21:14:35,749 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 21:14:35,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2019-10-13 21:14:35,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 3992. [2019-10-13 21:14:35,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3992 states. [2019-10-13 21:14:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 5715 transitions. [2019-10-13 21:14:36,011 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 5715 transitions. Word has length 165 [2019-10-13 21:14:36,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:36,012 INFO L462 AbstractCegarLoop]: Abstraction has 3992 states and 5715 transitions. [2019-10-13 21:14:36,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 5715 transitions. [2019-10-13 21:14:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:36,025 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:36,026 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 21:14:36,026 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:36,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:36,027 INFO L82 PathProgramCache]: Analyzing trace with hash 55559016, now seen corresponding path program 1 times [2019-10-13 21:14:36,027 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:36,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331266960] [2019-10-13 21:14:36,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:36,028 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:36,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:36,211 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 21:14:36,212 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331266960] [2019-10-13 21:14:36,212 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:36,212 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:14:36,212 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039560103] [2019-10-13 21:14:36,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:14:36,213 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:36,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:14:36,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:14:36,214 INFO L87 Difference]: Start difference. First operand 3992 states and 5715 transitions. Second operand 9 states. [2019-10-13 21:14:36,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:36,539 INFO L93 Difference]: Finished difference Result 4555 states and 6460 transitions. [2019-10-13 21:14:36,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:14:36,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2019-10-13 21:14:36,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:36,550 INFO L225 Difference]: With dead ends: 4555 [2019-10-13 21:14:36,551 INFO L226 Difference]: Without dead ends: 1457 [2019-10-13 21:14:36,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:14:36,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2019-10-13 21:14:36,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1455. [2019-10-13 21:14:36,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1455 states. [2019-10-13 21:14:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 2040 transitions. [2019-10-13 21:14:36,644 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 2040 transitions. Word has length 165 [2019-10-13 21:14:36,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:36,645 INFO L462 AbstractCegarLoop]: Abstraction has 1455 states and 2040 transitions. [2019-10-13 21:14:36,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:14:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 2040 transitions. [2019-10-13 21:14:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:14:36,650 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:36,651 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 21:14:36,651 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:36,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:36,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1479457876, now seen corresponding path program 2 times [2019-10-13 21:14:36,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:36,652 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138815286] [2019-10-13 21:14:36,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:36,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:36,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:37,170 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 21:14:37,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138815286] [2019-10-13 21:14:37,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:37,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 21:14:37,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660518308] [2019-10-13 21:14:37,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 21:14:37,172 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:37,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 21:14:37,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-13 21:14:37,173 INFO L87 Difference]: Start difference. First operand 1455 states and 2040 transitions. Second operand 24 states.