/usr/bin/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_spec6_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:53:25,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:53:25,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:53:25,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:53:25,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:53:25,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:53:25,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:53:25,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:53:25,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:53:25,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:53:25,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:53:25,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:53:25,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:53:25,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:53:25,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:53:25,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:53:25,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:53:25,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:53:25,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:53:25,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:53:25,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:53:25,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:53:25,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:53:25,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:53:25,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:53:25,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:53:25,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:53:25,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:53:25,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:53:25,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:53:25,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:53:25,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:53:25,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:53:25,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:53:25,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:53:25,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:53:25,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:53:25,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:53:25,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:53:25,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:53:25,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:53:25,736 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 [2019-11-07 00:53:25,760 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:53:25,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:53:25,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:53:25,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:53:25,763 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:53:25,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:53:25,763 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:53:25,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:53:25,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:53:25,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:53:25,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:53:25,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:53:25,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:53:25,766 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:53:25,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:53:25,766 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:53:25,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:53:25,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:53:25,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:53:25,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:53:25,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:53:25,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:53:25,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:53:25,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:53:25,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:53:25,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:53:25,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:53:25,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:53:25,769 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 [2019-11-07 00:53:26,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:53:26,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:53:26,118 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:53:26,120 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:53:26,120 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:53:26,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-11-07 00:53:26,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d498888/fdfc4be08bde4f3892abc407f8e51887/FLAG815c47be4 [2019-11-07 00:53:26,788 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:53:26,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-11-07 00:53:26,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d498888/fdfc4be08bde4f3892abc407f8e51887/FLAG815c47be4 [2019-11-07 00:53:27,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d498888/fdfc4be08bde4f3892abc407f8e51887 [2019-11-07 00:53:27,045 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:53:27,052 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:53:27,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:27,064 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:53:27,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:53:27,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2019-11-07 00:53:27,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a032d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:27, skipping insertion in model container [2019-11-07 00:53:27,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:53:27" (1/1) ... [2019-11-07 00:53:27,092 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:53:27,156 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:53:27,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:27,920 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:53:28,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:53:28,159 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:53:28,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28 WrapperNode [2019-11-07 00:53:28,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:53:28,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:53:28,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:53:28,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:53:28,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (1/1) ... [2019-11-07 00:53:28,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:53:28,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:53:28,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:53:28,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:53:28,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (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 [2019-11-07 00:53:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:53:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:53:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:53:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:53:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:53:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:53:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:53:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:53:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:53:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:53:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:53:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:53:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:53:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-11-07 00:53:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:53:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:53:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:53:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:53:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:53:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:53:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:53:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:53:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:53:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:53:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:53:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:53:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:53:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:53:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:53:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:53:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:53:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:53:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:53:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:53:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:53:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:53:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:53:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:53:28,475 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:53:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:53:28,476 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:53:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:53:28,477 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:53:28,478 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:53:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:53:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:53:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:53:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:53:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:53:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:53:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:53:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:53:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:53:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:53:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:53:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:53:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:53:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:53:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:53:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:53:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:53:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:53:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:53:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:53:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:53:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:53:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:53:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:53:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:53:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:53:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:53:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:53:28,496 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:53:28,497 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:53:28,498 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:53:28,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:53:28,500 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:53:28,501 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:53:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:53:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:53:28,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:53:30,536 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:53:30,536 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:53:30,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:30 BoogieIcfgContainer [2019-11-07 00:53:30,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:53:30,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:53:30,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:53:30,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:53:30,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:53:27" (1/3) ... [2019-11-07 00:53:30,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca43b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:30, skipping insertion in model container [2019-11-07 00:53:30,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:53:28" (2/3) ... [2019-11-07 00:53:30,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca43b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:53:30, skipping insertion in model container [2019-11-07 00:53:30,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:53:30" (3/3) ... [2019-11-07 00:53:30,548 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2019-11-07 00:53:30,559 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:53:30,571 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:53:30,582 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:53:30,626 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:53:30,626 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:53:30,626 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:53:30,626 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:53:30,626 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:53:30,626 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:53:30,627 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:53:30,627 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:53:30,670 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2019-11-07 00:53:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-11-07 00:53:30,707 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:30,710 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:30,713 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:30,720 INFO L82 PathProgramCache]: Analyzing trace with hash -818881657, now seen corresponding path program 1 times [2019-11-07 00:53:30,741 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:30,742 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039116188] [2019-11-07 00:53:30,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:31,442 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039116188] [2019-11-07 00:53:31,443 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:31,443 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:53:31,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240691549] [2019-11-07 00:53:31,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:53:31,453 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:31,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:53:31,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:53:31,471 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 2 states. [2019-11-07 00:53:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:31,601 INFO L93 Difference]: Finished difference Result 840 states and 1139 transitions. [2019-11-07 00:53:31,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:53:31,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-11-07 00:53:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:31,644 INFO L225 Difference]: With dead ends: 840 [2019-11-07 00:53:31,645 INFO L226 Difference]: Without dead ends: 548 [2019-11-07 00:53:31,659 INFO L630 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 [2019-11-07 00:53:31,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-11-07 00:53:31,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2019-11-07 00:53:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-11-07 00:53:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 748 transitions. [2019-11-07 00:53:31,777 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 748 transitions. Word has length 185 [2019-11-07 00:53:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:31,779 INFO L462 AbstractCegarLoop]: Abstraction has 548 states and 748 transitions. [2019-11-07 00:53:31,779 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:53:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 748 transitions. [2019-11-07 00:53:31,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-11-07 00:53:31,786 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:31,787 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:31,787 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:31,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:31,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1630438931, now seen corresponding path program 1 times [2019-11-07 00:53:31,788 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:31,788 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77785970] [2019-11-07 00:53:31,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:32,159 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:32,159 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77785970] [2019-11-07 00:53:32,159 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:32,160 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:32,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833231538] [2019-11-07 00:53:32,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:32,163 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:32,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:32,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,163 INFO L87 Difference]: Start difference. First operand 548 states and 748 transitions. Second operand 3 states. [2019-11-07 00:53:32,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:32,222 INFO L93 Difference]: Finished difference Result 823 states and 1104 transitions. [2019-11-07 00:53:32,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:32,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-11-07 00:53:32,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:32,230 INFO L225 Difference]: With dead ends: 823 [2019-11-07 00:53:32,231 INFO L226 Difference]: Without dead ends: 551 [2019-11-07 00:53:32,234 INFO L630 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 [2019-11-07 00:53:32,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-11-07 00:53:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-11-07 00:53:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-11-07 00:53:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 750 transitions. [2019-11-07 00:53:32,287 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 750 transitions. Word has length 186 [2019-11-07 00:53:32,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:32,290 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 750 transitions. [2019-11-07 00:53:32,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:32,290 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 750 transitions. [2019-11-07 00:53:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-11-07 00:53:32,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,298 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:32,299 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,299 INFO L82 PathProgramCache]: Analyzing trace with hash -160158177, now seen corresponding path program 1 times [2019-11-07 00:53:32,299 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,299 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510152936] [2019-11-07 00:53:32,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:32,496 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510152936] [2019-11-07 00:53:32,496 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:32,497 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:32,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557371325] [2019-11-07 00:53:32,498 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:32,498 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:32,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:32,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:32,499 INFO L87 Difference]: Start difference. First operand 550 states and 750 transitions. Second operand 3 states. [2019-11-07 00:53:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:32,542 INFO L93 Difference]: Finished difference Result 1078 states and 1501 transitions. [2019-11-07 00:53:32,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:32,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-11-07 00:53:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:32,547 INFO L225 Difference]: With dead ends: 1078 [2019-11-07 00:53:32,548 INFO L226 Difference]: Without dead ends: 593 [2019-11-07 00:53:32,550 INFO L630 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 [2019-11-07 00:53:32,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-11-07 00:53:32,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 592. [2019-11-07 00:53:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-11-07 00:53:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 822 transitions. [2019-11-07 00:53:32,576 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 822 transitions. Word has length 192 [2019-11-07 00:53:32,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:32,576 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 822 transitions. [2019-11-07 00:53:32,576 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 822 transitions. [2019-11-07 00:53:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-11-07 00:53:32,581 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:32,581 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:32,582 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:32,582 INFO L82 PathProgramCache]: Analyzing trace with hash 245663473, now seen corresponding path program 1 times [2019-11-07 00:53:32,582 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:32,582 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734172068] [2019-11-07 00:53:32,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:32,914 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:32,914 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734172068] [2019-11-07 00:53:32,915 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:32,915 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:32,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341207859] [2019-11-07 00:53:32,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:32,918 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:32,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:32,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:32,919 INFO L87 Difference]: Start difference. First operand 592 states and 822 transitions. Second operand 11 states. [2019-11-07 00:53:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:38,209 INFO L93 Difference]: Finished difference Result 2870 states and 4070 transitions. [2019-11-07 00:53:38,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 00:53:38,210 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-11-07 00:53:38,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:38,229 INFO L225 Difference]: With dead ends: 2870 [2019-11-07 00:53:38,229 INFO L226 Difference]: Without dead ends: 2611 [2019-11-07 00:53:38,233 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:53:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2019-11-07 00:53:38,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2590. [2019-11-07 00:53:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2590 states. [2019-11-07 00:53:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3623 transitions. [2019-11-07 00:53:38,364 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3623 transitions. Word has length 193 [2019-11-07 00:53:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:38,365 INFO L462 AbstractCegarLoop]: Abstraction has 2590 states and 3623 transitions. [2019-11-07 00:53:38,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3623 transitions. [2019-11-07 00:53:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-11-07 00:53:38,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:38,370 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:38,370 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:38,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:38,370 INFO L82 PathProgramCache]: Analyzing trace with hash 5932126, now seen corresponding path program 1 times [2019-11-07 00:53:38,371 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:38,371 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146268261] [2019-11-07 00:53:38,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:38,694 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:38,695 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146268261] [2019-11-07 00:53:38,695 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:38,695 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:53:38,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320203482] [2019-11-07 00:53:38,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:53:38,697 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:38,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:53:38,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:53:38,698 INFO L87 Difference]: Start difference. First operand 2590 states and 3623 transitions. Second operand 18 states. [2019-11-07 00:53:39,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:39,318 INFO L93 Difference]: Finished difference Result 4882 states and 6942 transitions. [2019-11-07 00:53:39,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:53:39,318 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 194 [2019-11-07 00:53:39,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:39,336 INFO L225 Difference]: With dead ends: 4882 [2019-11-07 00:53:39,336 INFO L226 Difference]: Without dead ends: 2607 [2019-11-07 00:53:39,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:53:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2019-11-07 00:53:39,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2605. [2019-11-07 00:53:39,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2019-11-07 00:53:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3628 transitions. [2019-11-07 00:53:39,461 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3628 transitions. Word has length 194 [2019-11-07 00:53:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:39,462 INFO L462 AbstractCegarLoop]: Abstraction has 2605 states and 3628 transitions. [2019-11-07 00:53:39,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:53:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3628 transitions. [2019-11-07 00:53:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:53:39,466 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:39,466 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:39,466 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:39,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:39,467 INFO L82 PathProgramCache]: Analyzing trace with hash -129887982, now seen corresponding path program 1 times [2019-11-07 00:53:39,467 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:39,467 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304407305] [2019-11-07 00:53:39,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:39,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:39,633 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304407305] [2019-11-07 00:53:39,633 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:39,633 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:53:39,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870167130] [2019-11-07 00:53:39,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:53:39,635 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:39,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:53:39,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:53:39,635 INFO L87 Difference]: Start difference. First operand 2605 states and 3628 transitions. Second operand 6 states. [2019-11-07 00:53:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:40,449 INFO L93 Difference]: Finished difference Result 7541 states and 10662 transitions. [2019-11-07 00:53:40,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:53:40,450 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-11-07 00:53:40,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:40,482 INFO L225 Difference]: With dead ends: 7541 [2019-11-07 00:53:40,483 INFO L226 Difference]: Without dead ends: 5297 [2019-11-07 00:53:40,493 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:53:40,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2019-11-07 00:53:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 5226. [2019-11-07 00:53:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5226 states. [2019-11-07 00:53:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7370 transitions. [2019-11-07 00:53:40,781 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7370 transitions. Word has length 203 [2019-11-07 00:53:40,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:40,782 INFO L462 AbstractCegarLoop]: Abstraction has 5226 states and 7370 transitions. [2019-11-07 00:53:40,782 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:53:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7370 transitions. [2019-11-07 00:53:40,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:53:40,792 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:40,792 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:40,793 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:40,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1737216113, now seen corresponding path program 1 times [2019-11-07 00:53:40,794 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:40,794 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810371747] [2019-11-07 00:53:40,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:40,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:41,127 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810371747] [2019-11-07 00:53:41,128 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:41,128 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:53:41,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274339181] [2019-11-07 00:53:41,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:53:41,129 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:41,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:53:41,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:53:41,130 INFO L87 Difference]: Start difference. First operand 5226 states and 7370 transitions. Second operand 11 states. [2019-11-07 00:53:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:41,684 INFO L93 Difference]: Finished difference Result 9853 states and 13893 transitions. [2019-11-07 00:53:41,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:53:41,684 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-11-07 00:53:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:41,720 INFO L225 Difference]: With dead ends: 9853 [2019-11-07 00:53:41,720 INFO L226 Difference]: Without dead ends: 5280 [2019-11-07 00:53:41,741 INFO L630 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 [2019-11-07 00:53:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2019-11-07 00:53:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5262. [2019-11-07 00:53:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5262 states. [2019-11-07 00:53:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 7406 transitions. [2019-11-07 00:53:42,095 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 7406 transitions. Word has length 204 [2019-11-07 00:53:42,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:42,095 INFO L462 AbstractCegarLoop]: Abstraction has 5262 states and 7406 transitions. [2019-11-07 00:53:42,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:53:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 7406 transitions. [2019-11-07 00:53:42,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:53:42,101 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:42,102 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:42,102 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:42,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:42,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1970975064, now seen corresponding path program 1 times [2019-11-07 00:53:42,102 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:42,103 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419935482] [2019-11-07 00:53:42,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:42,258 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-11-07 00:53:42,258 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419935482] [2019-11-07 00:53:42,259 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:42,259 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:53:42,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244784801] [2019-11-07 00:53:42,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:53:42,260 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:42,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:53:42,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:53:42,260 INFO L87 Difference]: Start difference. First operand 5262 states and 7406 transitions. Second operand 5 states. [2019-11-07 00:53:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:43,824 INFO L93 Difference]: Finished difference Result 19579 states and 27594 transitions. [2019-11-07 00:53:43,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:53:43,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-11-07 00:53:43,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:43,917 INFO L225 Difference]: With dead ends: 19579 [2019-11-07 00:53:43,917 INFO L226 Difference]: Without dead ends: 14972 [2019-11-07 00:53:43,944 INFO L630 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 [2019-11-07 00:53:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14972 states. [2019-11-07 00:53:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14972 to 14860. [2019-11-07 00:53:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14860 states. [2019-11-07 00:53:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14860 states to 14860 states and 20886 transitions. [2019-11-07 00:53:44,552 INFO L78 Accepts]: Start accepts. Automaton has 14860 states and 20886 transitions. Word has length 204 [2019-11-07 00:53:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:44,553 INFO L462 AbstractCegarLoop]: Abstraction has 14860 states and 20886 transitions. [2019-11-07 00:53:44,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:53:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 14860 states and 20886 transitions. [2019-11-07 00:53:44,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-11-07 00:53:44,565 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:44,565 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:44,565 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash -705130534, now seen corresponding path program 1 times [2019-11-07 00:53:44,566 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:44,566 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730957695] [2019-11-07 00:53:44,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:45,356 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730957695] [2019-11-07 00:53:45,356 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:45,356 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:45,357 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639771874] [2019-11-07 00:53:45,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:45,359 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:45,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:45,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:45,359 INFO L87 Difference]: Start difference. First operand 14860 states and 20886 transitions. Second operand 3 states. [2019-11-07 00:53:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:45,697 INFO L93 Difference]: Finished difference Result 29999 states and 42332 transitions. [2019-11-07 00:53:45,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:45,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-11-07 00:53:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:45,779 INFO L225 Difference]: With dead ends: 29999 [2019-11-07 00:53:45,780 INFO L226 Difference]: Without dead ends: 15204 [2019-11-07 00:53:45,844 INFO L630 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 [2019-11-07 00:53:45,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15204 states. [2019-11-07 00:53:46,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15204 to 15200. [2019-11-07 00:53:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15200 states. [2019-11-07 00:53:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15200 states to 15200 states and 21507 transitions. [2019-11-07 00:53:46,520 INFO L78 Accepts]: Start accepts. Automaton has 15200 states and 21507 transitions. Word has length 233 [2019-11-07 00:53:46,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:46,520 INFO L462 AbstractCegarLoop]: Abstraction has 15200 states and 21507 transitions. [2019-11-07 00:53:46,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:46,520 INFO L276 IsEmpty]: Start isEmpty. Operand 15200 states and 21507 transitions. [2019-11-07 00:53:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-11-07 00:53:46,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:46,541 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:46,542 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:46,542 INFO L82 PathProgramCache]: Analyzing trace with hash 506599848, now seen corresponding path program 1 times [2019-11-07 00:53:46,542 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:46,542 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697602739] [2019-11-07 00:53:46,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:46,682 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:46,683 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697602739] [2019-11-07 00:53:46,683 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:46,684 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:53:46,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197939721] [2019-11-07 00:53:46,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:53:46,685 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:53:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:53:46,686 INFO L87 Difference]: Start difference. First operand 15200 states and 21507 transitions. Second operand 3 states. [2019-11-07 00:53:47,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:47,002 INFO L93 Difference]: Finished difference Result 30979 states and 44131 transitions. [2019-11-07 00:53:47,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:53:47,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2019-11-07 00:53:47,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:47,071 INFO L225 Difference]: With dead ends: 30979 [2019-11-07 00:53:47,071 INFO L226 Difference]: Without dead ends: 15844 [2019-11-07 00:53:47,104 INFO L630 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 [2019-11-07 00:53:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2019-11-07 00:53:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15840. [2019-11-07 00:53:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15840 states. [2019-11-07 00:53:47,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15840 states to 15840 states and 22677 transitions. [2019-11-07 00:53:47,863 INFO L78 Accepts]: Start accepts. Automaton has 15840 states and 22677 transitions. Word has length 234 [2019-11-07 00:53:47,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:47,863 INFO L462 AbstractCegarLoop]: Abstraction has 15840 states and 22677 transitions. [2019-11-07 00:53:47,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:53:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 15840 states and 22677 transitions. [2019-11-07 00:53:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-11-07 00:53:47,881 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:47,882 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:47,882 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:47,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:47,882 INFO L82 PathProgramCache]: Analyzing trace with hash 722288488, now seen corresponding path program 1 times [2019-11-07 00:53:47,883 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:47,883 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149775341] [2019-11-07 00:53:47,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:48,082 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:53:48,083 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149775341] [2019-11-07 00:53:48,083 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:48,083 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:48,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567556534] [2019-11-07 00:53:48,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:48,084 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:48,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:48,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:48,084 INFO L87 Difference]: Start difference. First operand 15840 states and 22677 transitions. Second operand 8 states. [2019-11-07 00:53:53,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:53:53,594 INFO L93 Difference]: Finished difference Result 47886 states and 70021 transitions. [2019-11-07 00:53:53,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 00:53:53,595 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-11-07 00:53:53,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:53:53,733 INFO L225 Difference]: With dead ends: 47886 [2019-11-07 00:53:53,733 INFO L226 Difference]: Without dead ends: 32111 [2019-11-07 00:53:53,775 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-11-07 00:53:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2019-11-07 00:53:54,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 18256. [2019-11-07 00:53:54,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18256 states. [2019-11-07 00:53:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 27453 transitions. [2019-11-07 00:53:54,672 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 27453 transitions. Word has length 241 [2019-11-07 00:53:54,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:53:54,673 INFO L462 AbstractCegarLoop]: Abstraction has 18256 states and 27453 transitions. [2019-11-07 00:53:54,673 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:53:54,673 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 27453 transitions. [2019-11-07 00:53:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:53:54,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:53:54,717 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:53:54,718 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:53:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:53:54,718 INFO L82 PathProgramCache]: Analyzing trace with hash -68399069, now seen corresponding path program 1 times [2019-11-07 00:53:54,718 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:53:54,718 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41119885] [2019-11-07 00:53:54,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:53:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:53:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 00:53:55,161 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41119885] [2019-11-07 00:53:55,162 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:53:55,162 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:53:55,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622796333] [2019-11-07 00:53:55,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:53:55,163 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:53:55,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:53:55,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:53:55,163 INFO L87 Difference]: Start difference. First operand 18256 states and 27453 transitions. Second operand 8 states.