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_spec0_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:19,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:19,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:19,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:19,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:19,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:19,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:19,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:19,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:19,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:19,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:19,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:19,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:19,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:19,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:19,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:19,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:19,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:19,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:19,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:19,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:19,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:19,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:19,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:19,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:19,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:19,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:19,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:19,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:19,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:19,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:19,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:19,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:19,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:19,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:19,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:19,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:19,237 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:19,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:19,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:19,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:19,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:19,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:19,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:19,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:19,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:19,261 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:19,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:19,261 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:19,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:19,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:19,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:19,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:19,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:19,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:19,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:19,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:19,264 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:19,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:19,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:19,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:19,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:19,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:19,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:19,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:19,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:19,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:19,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:19,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:19,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:19,266 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:19,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:19,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:19,584 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:19,586 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:19,587 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:19,587 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2019-10-15 01:12:19,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f886ccef3/e71f24bcbcc1447183dd3a8118639bb7/FLAGaa00baf84 [2019-10-15 01:12:20,221 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:20,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2019-10-15 01:12:20,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f886ccef3/e71f24bcbcc1447183dd3a8118639bb7/FLAGaa00baf84 [2019-10-15 01:12:20,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f886ccef3/e71f24bcbcc1447183dd3a8118639bb7 [2019-10-15 01:12:20,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:20,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:20,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:20,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:20,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:20,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:20" (1/1) ... [2019-10-15 01:12:20,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a30decc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:20, skipping insertion in model container [2019-10-15 01:12:20,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:20" (1/1) ... [2019-10-15 01:12:20,531 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:20,609 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:21,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:21,393 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:21,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:21,575 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:21,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21 WrapperNode [2019-10-15 01:12:21,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:21,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:21,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:21,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:21,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... [2019-10-15 01:12:21,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:21,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:21,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:21,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:21,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:21,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:21,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:21,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:21,851 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:21,852 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:21,854 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:21,855 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:21,856 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:23,944 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:23,944 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:23,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:23 BoogieIcfgContainer [2019-10-15 01:12:23,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:23,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:23,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:23,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:23,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:20" (1/3) ... [2019-10-15 01:12:23,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5acfd442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:23, skipping insertion in model container [2019-10-15 01:12:23,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:21" (2/3) ... [2019-10-15 01:12:23,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5acfd442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:23, skipping insertion in model container [2019-10-15 01:12:23,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:23" (3/3) ... [2019-10-15 01:12:23,954 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.c [2019-10-15 01:12:23,963 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:23,972 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:23,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:24,010 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:24,011 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:24,011 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:24,011 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:24,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:24,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:24,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:24,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states. [2019-10-15 01:12:24,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:12:24,089 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:24,090 INFO L380 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] [2019-10-15 01:12:24,092 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:24,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:24,100 INFO L82 PathProgramCache]: Analyzing trace with hash 2061409221, now seen corresponding path program 1 times [2019-10-15 01:12:24,110 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:24,110 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007308477] [2019-10-15 01:12:24,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:24,873 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:24,873 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007308477] [2019-10-15 01:12:24,874 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:24,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:24,875 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274139111] [2019-10-15 01:12:24,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:24,883 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:24,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:24,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:24,900 INFO L87 Difference]: Start difference. First operand 511 states. Second operand 2 states. [2019-10-15 01:12:24,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:24,984 INFO L93 Difference]: Finished difference Result 697 states and 939 transitions. [2019-10-15 01:12:24,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:24,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-15 01:12:24,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:25,025 INFO L225 Difference]: With dead ends: 697 [2019-10-15 01:12:25,026 INFO L226 Difference]: Without dead ends: 482 [2019-10-15 01:12:25,038 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:25,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-10-15 01:12:25,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2019-10-15 01:12:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2019-10-15 01:12:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 655 transitions. [2019-10-15 01:12:25,133 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 655 transitions. Word has length 177 [2019-10-15 01:12:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:25,135 INFO L462 AbstractCegarLoop]: Abstraction has 482 states and 655 transitions. [2019-10-15 01:12:25,136 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 655 transitions. [2019-10-15 01:12:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 01:12:25,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:25,142 INFO L380 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] [2019-10-15 01:12:25,142 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:25,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:25,143 INFO L82 PathProgramCache]: Analyzing trace with hash -956753639, now seen corresponding path program 1 times [2019-10-15 01:12:25,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:25,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967158670] [2019-10-15 01:12:25,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:25,347 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:25,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967158670] [2019-10-15 01:12:25,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:25,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:25,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636775736] [2019-10-15 01:12:25,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:25,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:25,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:25,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:25,351 INFO L87 Difference]: Start difference. First operand 482 states and 655 transitions. Second operand 3 states. [2019-10-15 01:12:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:25,431 INFO L93 Difference]: Finished difference Result 680 states and 904 transitions. [2019-10-15 01:12:25,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:25,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 01:12:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:25,438 INFO L225 Difference]: With dead ends: 680 [2019-10-15 01:12:25,438 INFO L226 Difference]: Without dead ends: 485 [2019-10-15 01:12:25,442 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:25,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-15 01:12:25,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-10-15 01:12:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-15 01:12:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 657 transitions. [2019-10-15 01:12:25,473 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 657 transitions. Word has length 178 [2019-10-15 01:12:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:25,474 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 657 transitions. [2019-10-15 01:12:25,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 657 transitions. [2019-10-15 01:12:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:12:25,481 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:25,482 INFO L380 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, 1, 1, 1, 1] [2019-10-15 01:12:25,482 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:25,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:25,483 INFO L82 PathProgramCache]: Analyzing trace with hash 239347080, now seen corresponding path program 1 times [2019-10-15 01:12:25,483 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:25,483 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067192722] [2019-10-15 01:12:25,483 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,484 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:25,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067192722] [2019-10-15 01:12:25,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:25,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:25,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284560119] [2019-10-15 01:12:25,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:25,743 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:25,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:25,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:25,744 INFO L87 Difference]: Start difference. First operand 484 states and 657 transitions. Second operand 3 states. [2019-10-15 01:12:25,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:25,787 INFO L93 Difference]: Finished difference Result 948 states and 1318 transitions. [2019-10-15 01:12:25,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:25,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:12:25,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:25,792 INFO L225 Difference]: With dead ends: 948 [2019-10-15 01:12:25,793 INFO L226 Difference]: Without dead ends: 529 [2019-10-15 01:12:25,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:25,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-10-15 01:12:25,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 528. [2019-10-15 01:12:25,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-10-15 01:12:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 732 transitions. [2019-10-15 01:12:25,818 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 732 transitions. Word has length 190 [2019-10-15 01:12:25,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:25,819 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 732 transitions. [2019-10-15 01:12:25,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 732 transitions. [2019-10-15 01:12:25,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:12:25,824 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:25,824 INFO L380 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, 1, 1, 1, 1, 1] [2019-10-15 01:12:25,825 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:25,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:25,825 INFO L82 PathProgramCache]: Analyzing trace with hash 459421880, now seen corresponding path program 1 times [2019-10-15 01:12:25,825 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:25,825 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23681505] [2019-10-15 01:12:25,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:25,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:25,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:26,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23681505] [2019-10-15 01:12:26,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:26,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:26,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627954027] [2019-10-15 01:12:26,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:26,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:26,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:26,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,018 INFO L87 Difference]: Start difference. First operand 528 states and 732 transitions. Second operand 3 states. [2019-10-15 01:12:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:26,071 INFO L93 Difference]: Finished difference Result 1077 states and 1538 transitions. [2019-10-15 01:12:26,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:26,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-15 01:12:26,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:26,080 INFO L225 Difference]: With dead ends: 1077 [2019-10-15 01:12:26,080 INFO L226 Difference]: Without dead ends: 614 [2019-10-15 01:12:26,083 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2019-10-15 01:12:26,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 613. [2019-10-15 01:12:26,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-15 01:12:26,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 876 transitions. [2019-10-15 01:12:26,126 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 876 transitions. Word has length 191 [2019-10-15 01:12:26,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:26,127 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 876 transitions. [2019-10-15 01:12:26,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:26,127 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 876 transitions. [2019-10-15 01:12:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:12:26,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:26,134 INFO L380 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, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:26,134 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:26,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:26,135 INFO L82 PathProgramCache]: Analyzing trace with hash 655741416, now seen corresponding path program 1 times [2019-10-15 01:12:26,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:26,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850322838] [2019-10-15 01:12:26,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:26,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850322838] [2019-10-15 01:12:26,407 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:26,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:26,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162762788] [2019-10-15 01:12:26,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:26,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:26,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:26,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,409 INFO L87 Difference]: Start difference. First operand 613 states and 876 transitions. Second operand 3 states. [2019-10-15 01:12:26,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:26,450 INFO L93 Difference]: Finished difference Result 1326 states and 1960 transitions. [2019-10-15 01:12:26,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:26,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:12:26,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:26,463 INFO L225 Difference]: With dead ends: 1326 [2019-10-15 01:12:26,464 INFO L226 Difference]: Without dead ends: 778 [2019-10-15 01:12:26,467 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-10-15 01:12:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 777. [2019-10-15 01:12:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-10-15 01:12:26,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1152 transitions. [2019-10-15 01:12:26,532 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1152 transitions. Word has length 192 [2019-10-15 01:12:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:26,533 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 1152 transitions. [2019-10-15 01:12:26,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1152 transitions. [2019-10-15 01:12:26,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:12:26,543 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:26,544 INFO L380 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] [2019-10-15 01:12:26,544 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:26,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:26,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1935139716, now seen corresponding path program 1 times [2019-10-15 01:12:26,545 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:26,545 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950748790] [2019-10-15 01:12:26,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,546 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:26,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:27,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:27,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950748790] [2019-10-15 01:12:27,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:27,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:12:27,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918920388] [2019-10-15 01:12:27,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:12:27,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:27,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:12:27,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:27,134 INFO L87 Difference]: Start difference. First operand 777 states and 1152 transitions. Second operand 13 states. [2019-10-15 01:12:29,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:29,851 INFO L93 Difference]: Finished difference Result 1686 states and 2497 transitions. [2019-10-15 01:12:29,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:12:29,852 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 194 [2019-10-15 01:12:29,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:29,862 INFO L225 Difference]: With dead ends: 1686 [2019-10-15 01:12:29,862 INFO L226 Difference]: Without dead ends: 1504 [2019-10-15 01:12:29,864 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:12:29,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2019-10-15 01:12:29,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1496. [2019-10-15 01:12:29,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2019-10-15 01:12:29,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2243 transitions. [2019-10-15 01:12:29,936 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2243 transitions. Word has length 194 [2019-10-15 01:12:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:29,937 INFO L462 AbstractCegarLoop]: Abstraction has 1496 states and 2243 transitions. [2019-10-15 01:12:29,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:12:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2243 transitions. [2019-10-15 01:12:29,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:12:29,945 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:29,946 INFO L380 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:29,946 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:29,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:29,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1955843160, now seen corresponding path program 1 times [2019-10-15 01:12:29,946 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:29,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500728777] [2019-10-15 01:12:29,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:29,947 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:29,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:30,073 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:30,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500728777] [2019-10-15 01:12:30,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:30,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:30,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616758742] [2019-10-15 01:12:30,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:30,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:30,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:30,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:30,075 INFO L87 Difference]: Start difference. First operand 1496 states and 2243 transitions. Second operand 3 states. [2019-10-15 01:12:30,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:30,165 INFO L93 Difference]: Finished difference Result 3561 states and 5491 transitions. [2019-10-15 01:12:30,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:30,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-15 01:12:30,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:30,179 INFO L225 Difference]: With dead ends: 3561 [2019-10-15 01:12:30,179 INFO L226 Difference]: Without dead ends: 2130 [2019-10-15 01:12:30,185 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:30,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2019-10-15 01:12:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2128. [2019-10-15 01:12:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2019-10-15 01:12:30,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3303 transitions. [2019-10-15 01:12:30,392 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3303 transitions. Word has length 193 [2019-10-15 01:12:30,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:30,393 INFO L462 AbstractCegarLoop]: Abstraction has 2128 states and 3303 transitions. [2019-10-15 01:12:30,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:30,393 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3303 transitions. [2019-10-15 01:12:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:12:30,412 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:30,412 INFO L380 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] [2019-10-15 01:12:30,413 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1693972236, now seen corresponding path program 1 times [2019-10-15 01:12:30,414 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:30,414 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776363941] [2019-10-15 01:12:30,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:30,610 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776363941] [2019-10-15 01:12:30,611 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:30,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:30,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278899383] [2019-10-15 01:12:30,612 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:30,612 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:30,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:30,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:30,613 INFO L87 Difference]: Start difference. First operand 2128 states and 3303 transitions. Second operand 9 states. [2019-10-15 01:12:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:30,806 INFO L93 Difference]: Finished difference Result 2520 states and 3813 transitions. [2019-10-15 01:12:30,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:30,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-15 01:12:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:30,820 INFO L225 Difference]: With dead ends: 2520 [2019-10-15 01:12:30,821 INFO L226 Difference]: Without dead ends: 2151 [2019-10-15 01:12:30,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:30,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2019-10-15 01:12:30,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 2139. [2019-10-15 01:12:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2139 states. [2019-10-15 01:12:30,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3317 transitions. [2019-10-15 01:12:30,937 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3317 transitions. Word has length 195 [2019-10-15 01:12:30,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:30,938 INFO L462 AbstractCegarLoop]: Abstraction has 2139 states and 3317 transitions. [2019-10-15 01:12:30,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:30,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3317 transitions. [2019-10-15 01:12:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:12:30,950 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:30,951 INFO L380 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] [2019-10-15 01:12:30,951 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:30,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:30,951 INFO L82 PathProgramCache]: Analyzing trace with hash 839709138, now seen corresponding path program 1 times [2019-10-15 01:12:30,952 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:30,952 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794748696] [2019-10-15 01:12:30,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:30,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:31,141 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:31,142 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794748696] [2019-10-15 01:12:31,143 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:31,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:31,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424650499] [2019-10-15 01:12:31,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:31,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:31,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:31,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:31,146 INFO L87 Difference]: Start difference. First operand 2139 states and 3317 transitions. Second operand 6 states. [2019-10-15 01:12:31,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:31,764 INFO L93 Difference]: Finished difference Result 4609 states and 7105 transitions. [2019-10-15 01:12:31,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:31,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2019-10-15 01:12:31,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:31,791 INFO L225 Difference]: With dead ends: 4609 [2019-10-15 01:12:31,791 INFO L226 Difference]: Without dead ends: 4229 [2019-10-15 01:12:31,795 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2019-10-15 01:12:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4218. [2019-10-15 01:12:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4218 states. [2019-10-15 01:12:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 6603 transitions. [2019-10-15 01:12:32,103 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 6603 transitions. Word has length 195 [2019-10-15 01:12:32,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:32,104 INFO L462 AbstractCegarLoop]: Abstraction has 4218 states and 6603 transitions. [2019-10-15 01:12:32,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:32,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 6603 transitions. [2019-10-15 01:12:32,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:12:32,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:32,127 INFO L380 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] [2019-10-15 01:12:32,128 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:32,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:32,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1262166346, now seen corresponding path program 1 times [2019-10-15 01:12:32,128 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:32,128 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416975906] [2019-10-15 01:12:32,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:32,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:32,334 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416975906] [2019-10-15 01:12:32,335 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:32,335 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:32,335 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526907306] [2019-10-15 01:12:32,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:32,337 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:32,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:32,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:32,337 INFO L87 Difference]: Start difference. First operand 4218 states and 6603 transitions. Second operand 6 states. [2019-10-15 01:12:33,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:33,030 INFO L93 Difference]: Finished difference Result 9180 states and 14245 transitions. [2019-10-15 01:12:33,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:33,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2019-10-15 01:12:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:33,088 INFO L225 Difference]: With dead ends: 9180 [2019-10-15 01:12:33,088 INFO L226 Difference]: Without dead ends: 8415 [2019-10-15 01:12:33,095 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:33,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2019-10-15 01:12:33,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 8376. [2019-10-15 01:12:33,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8376 states. [2019-10-15 01:12:33,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8376 states to 8376 states and 13209 transitions. [2019-10-15 01:12:33,587 INFO L78 Accepts]: Start accepts. Automaton has 8376 states and 13209 transitions. Word has length 196 [2019-10-15 01:12:33,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:33,587 INFO L462 AbstractCegarLoop]: Abstraction has 8376 states and 13209 transitions. [2019-10-15 01:12:33,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8376 states and 13209 transitions. [2019-10-15 01:12:33,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:12:33,629 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:33,629 INFO L380 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] [2019-10-15 01:12:33,629 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash 2024527560, now seen corresponding path program 1 times [2019-10-15 01:12:33,630 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:33,630 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186129271] [2019-10-15 01:12:33,630 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:33,631 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:33,631 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:33,824 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:33,825 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186129271] [2019-10-15 01:12:33,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:33,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:33,826 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682736039] [2019-10-15 01:12:33,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:33,827 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:33,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:33,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:33,828 INFO L87 Difference]: Start difference. First operand 8376 states and 13209 transitions. Second operand 9 states. [2019-10-15 01:12:34,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:34,332 INFO L93 Difference]: Finished difference Result 10031 states and 15371 transitions. [2019-10-15 01:12:34,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:34,333 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-15 01:12:34,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:34,403 INFO L225 Difference]: With dead ends: 10031 [2019-10-15 01:12:34,403 INFO L226 Difference]: Without dead ends: 8496 [2019-10-15 01:12:34,413 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:34,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2019-10-15 01:12:34,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8456. [2019-10-15 01:12:34,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8456 states. [2019-10-15 01:12:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8456 states to 8456 states and 13321 transitions. [2019-10-15 01:12:34,840 INFO L78 Accepts]: Start accepts. Automaton has 8456 states and 13321 transitions. Word has length 197 [2019-10-15 01:12:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:34,841 INFO L462 AbstractCegarLoop]: Abstraction has 8456 states and 13321 transitions. [2019-10-15 01:12:34,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 8456 states and 13321 transitions. [2019-10-15 01:12:34,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:12:34,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:34,890 INFO L380 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] [2019-10-15 01:12:34,891 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:34,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:34,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1416443918, now seen corresponding path program 1 times [2019-10-15 01:12:34,891 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:34,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240683345] [2019-10-15 01:12:34,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:34,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:35,072 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:35,072 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240683345] [2019-10-15 01:12:35,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:35,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:35,073 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553177770] [2019-10-15 01:12:35,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:35,074 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:35,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:35,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:35,074 INFO L87 Difference]: Start difference. First operand 8456 states and 13321 transitions. Second operand 9 states. [2019-10-15 01:12:35,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:35,428 INFO L93 Difference]: Finished difference Result 10111 states and 15469 transitions. [2019-10-15 01:12:35,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:35,429 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-15 01:12:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:35,460 INFO L225 Difference]: With dead ends: 10111 [2019-10-15 01:12:35,461 INFO L226 Difference]: Without dead ends: 8496 [2019-10-15 01:12:35,469 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:35,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2019-10-15 01:12:35,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8456. [2019-10-15 01:12:35,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8456 states. [2019-10-15 01:12:35,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8456 states to 8456 states and 13299 transitions. [2019-10-15 01:12:35,815 INFO L78 Accepts]: Start accepts. Automaton has 8456 states and 13299 transitions. Word has length 197 [2019-10-15 01:12:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:35,815 INFO L462 AbstractCegarLoop]: Abstraction has 8456 states and 13299 transitions. [2019-10-15 01:12:35,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:35,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8456 states and 13299 transitions. [2019-10-15 01:12:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:12:35,859 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:35,859 INFO L380 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] [2019-10-15 01:12:35,860 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:35,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:35,861 INFO L82 PathProgramCache]: Analyzing trace with hash -457825732, now seen corresponding path program 1 times [2019-10-15 01:12:35,861 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:35,861 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264387133] [2019-10-15 01:12:35,861 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:35,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:36,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:36,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264387133] [2019-10-15 01:12:36,039 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:36,039 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:36,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035095405] [2019-10-15 01:12:36,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:36,041 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:36,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:36,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:36,042 INFO L87 Difference]: Start difference. First operand 8456 states and 13299 transitions. Second operand 6 states. [2019-10-15 01:12:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:36,790 INFO L93 Difference]: Finished difference Result 18450 states and 28713 transitions. [2019-10-15 01:12:36,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:36,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2019-10-15 01:12:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:36,858 INFO L225 Difference]: With dead ends: 18450 [2019-10-15 01:12:36,858 INFO L226 Difference]: Without dead ends: 16468 [2019-10-15 01:12:36,882 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2019-10-15 01:12:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 16407. [2019-10-15 01:12:37,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16407 states. [2019-10-15 01:12:37,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16407 states to 16407 states and 26017 transitions. [2019-10-15 01:12:37,652 INFO L78 Accepts]: Start accepts. Automaton has 16407 states and 26017 transitions. Word has length 198 [2019-10-15 01:12:37,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:37,652 INFO L462 AbstractCegarLoop]: Abstraction has 16407 states and 26017 transitions. [2019-10-15 01:12:37,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:37,652 INFO L276 IsEmpty]: Start isEmpty. Operand 16407 states and 26017 transitions. [2019-10-15 01:12:37,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:12:37,706 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:37,706 INFO L380 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] [2019-10-15 01:12:37,707 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:37,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:37,707 INFO L82 PathProgramCache]: Analyzing trace with hash -125865389, now seen corresponding path program 1 times [2019-10-15 01:12:37,707 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:37,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679917357] [2019-10-15 01:12:37,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:37,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:37,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:37,840 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679917357] [2019-10-15 01:12:37,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:37,841 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:37,841 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506619385] [2019-10-15 01:12:37,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:37,842 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:37,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:37,842 INFO L87 Difference]: Start difference. First operand 16407 states and 26017 transitions. Second operand 3 states. [2019-10-15 01:12:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:39,104 INFO L93 Difference]: Finished difference Result 42493 states and 68713 transitions. [2019-10-15 01:12:39,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:39,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-15 01:12:39,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:39,223 INFO L225 Difference]: With dead ends: 42493 [2019-10-15 01:12:39,223 INFO L226 Difference]: Without dead ends: 26149 [2019-10-15 01:12:39,305 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26149 states. [2019-10-15 01:12:40,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26149 to 26135. [2019-10-15 01:12:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26135 states. [2019-10-15 01:12:40,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26135 states to 26135 states and 42497 transitions. [2019-10-15 01:12:40,468 INFO L78 Accepts]: Start accepts. Automaton has 26135 states and 42497 transitions. Word has length 201 [2019-10-15 01:12:40,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:40,469 INFO L462 AbstractCegarLoop]: Abstraction has 26135 states and 42497 transitions. [2019-10-15 01:12:40,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 26135 states and 42497 transitions. [2019-10-15 01:12:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:40,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:40,531 INFO L380 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] [2019-10-15 01:12:40,531 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:40,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:40,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1306151587, now seen corresponding path program 1 times [2019-10-15 01:12:40,532 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:40,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713330439] [2019-10-15 01:12:40,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:40,708 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:40,709 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713330439] [2019-10-15 01:12:40,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:40,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:12:40,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862222351] [2019-10-15 01:12:40,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:12:40,710 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:40,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:12:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:12:40,711 INFO L87 Difference]: Start difference. First operand 26135 states and 42497 transitions. Second operand 8 states. [2019-10-15 01:12:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,166 INFO L93 Difference]: Finished difference Result 26135 states and 42497 transitions. [2019-10-15 01:12:41,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:41,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 202 [2019-10-15 01:12:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,167 INFO L225 Difference]: With dead ends: 26135 [2019-10-15 01:12:41,167 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:12:41,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:12:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:12:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:12:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:12:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:12:41,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2019-10-15 01:12:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:41,250 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:12:41,250 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:12:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:12:41,250 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:12:41,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:12:41,972 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:42,120 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 10 [2019-10-15 01:12:42,363 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 10 [2019-10-15 01:12:43,402 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:44,261 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:44,463 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 6 [2019-10-15 01:12:44,801 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:45,845 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:46,147 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:46,472 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:46,653 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:47,198 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:47,715 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:48,105 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:48,373 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:48,648 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:48,967 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:49,306 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-15 01:12:49,701 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6