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-f4eb214f-m [2019-10-13 21:13:17,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:13:17,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:13:17,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:13:17,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:13:17,037 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:13:17,038 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:13:17,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:13:17,042 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:13:17,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:13:17,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:13:17,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:13:17,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:13:17,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:13:17,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:13:17,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:13:17,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:13:17,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:13:17,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:13:17,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:13:17,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:13:17,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:13:17,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:13:17,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:13:17,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:13:17,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:13:17,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:13:17,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:13:17,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:13:17,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:13:17,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:13:17,063 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:13:17,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:13:17,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:13:17,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:13:17,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:13:17,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:13:17,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:13:17,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:13:17,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:13:17,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:13:17,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:13:17,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:13:17,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:13:17,091 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:13:17,091 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:13:17,091 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:13:17,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:13:17,092 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:13:17,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:13:17,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:13:17,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:13:17,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:13:17,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:13:17,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:13:17,094 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:13:17,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:13:17,094 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:13:17,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:13:17,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:13:17,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:13:17,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:13:17,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:13:17,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:17,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:13:17,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:13:17,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:13:17,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:13:17,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:13:17,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:13:17,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:13:17,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:13:17,376 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:13:17,380 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:13:17,382 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:13:17,382 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:13:17,383 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2019-10-13 21:13:17,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9366a302c/7939f7b6e04f46cc8a652b5f51335d6d/FLAG3b85af854 [2019-10-13 21:13:18,113 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:18,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product40.cil.c [2019-10-13 21:13:18,144 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9366a302c/7939f7b6e04f46cc8a652b5f51335d6d/FLAG3b85af854 [2019-10-13 21:13:18,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9366a302c/7939f7b6e04f46cc8a652b5f51335d6d [2019-10-13 21:13:18,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:18,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:18,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:18,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:18,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:18,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:18" (1/1) ... [2019-10-13 21:13:18,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7eba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:18, skipping insertion in model container [2019-10-13 21:13:18,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:18" (1/1) ... [2019-10-13 21:13:18,323 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:18,403 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:19,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:19,227 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:19,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:19,487 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:19,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19 WrapperNode [2019-10-13 21:13:19,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:19,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:19,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:19,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:19,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... [2019-10-13 21:13:19,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:19,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:19,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:19,672 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:19,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:19,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:13:19,736 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:19,737 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:19,738 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:19,739 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:19,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:13:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:13:19,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:19,742 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-13 21:13:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:19,743 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:19,744 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:19,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:19,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:19,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:19,751 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:19,752 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:19,753 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:19,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:19,755 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:19,757 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:19,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:19,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:19,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:19,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:19,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:19,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:13:19,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:19,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:19,766 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:19,767 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:13:19,768 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:19,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:21,773 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:21,773 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:21,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:21 BoogieIcfgContainer [2019-10-13 21:13:21,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:21,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:21,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:21,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:21,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:18" (1/3) ... [2019-10-13 21:13:21,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd52749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:21, skipping insertion in model container [2019-10-13 21:13:21,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:19" (2/3) ... [2019-10-13 21:13:21,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd52749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:21, skipping insertion in model container [2019-10-13 21:13:21,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:21" (3/3) ... [2019-10-13 21:13:21,787 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product40.cil.c [2019-10-13 21:13:21,798 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:21,814 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:21,827 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:21,876 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:21,877 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:21,877 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:21,877 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:21,877 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:21,877 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:21,877 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:21,877 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states. [2019-10-13 21:13:21,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-13 21:13:21,945 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:21,946 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] [2019-10-13 21:13:21,949 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:21,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:21,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2061409221, now seen corresponding path program 1 times [2019-10-13 21:13:21,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:21,964 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71898493] [2019-10-13 21:13:21,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:21,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:21,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:22,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71898493] [2019-10-13 21:13:22,708 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:22,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:22,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107001123] [2019-10-13 21:13:22,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:22,719 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:22,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:22,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:22,737 INFO L87 Difference]: Start difference. First operand 511 states. Second operand 2 states. [2019-10-13 21:13:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:22,828 INFO L93 Difference]: Finished difference Result 697 states and 939 transitions. [2019-10-13 21:13:22,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:22,830 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 177 [2019-10-13 21:13:22,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:22,867 INFO L225 Difference]: With dead ends: 697 [2019-10-13 21:13:22,868 INFO L226 Difference]: Without dead ends: 482 [2019-10-13 21:13:22,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:22,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2019-10-13 21:13:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2019-10-13 21:13:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2019-10-13 21:13:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 655 transitions. [2019-10-13 21:13:22,970 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 655 transitions. Word has length 177 [2019-10-13 21:13:22,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:22,972 INFO L462 AbstractCegarLoop]: Abstraction has 482 states and 655 transitions. [2019-10-13 21:13:22,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:22,973 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 655 transitions. [2019-10-13 21:13:22,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 21:13:22,981 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:22,982 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] [2019-10-13 21:13:22,982 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash -956753639, now seen corresponding path program 1 times [2019-10-13 21:13:22,983 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:22,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547261513] [2019-10-13 21:13:22,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,984 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:22,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:23,208 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:23,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547261513] [2019-10-13 21:13:23,209 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:23,209 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:23,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380790815] [2019-10-13 21:13:23,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:23,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:23,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:23,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:23,213 INFO L87 Difference]: Start difference. First operand 482 states and 655 transitions. Second operand 3 states. [2019-10-13 21:13:23,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:23,320 INFO L93 Difference]: Finished difference Result 680 states and 904 transitions. [2019-10-13 21:13:23,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:23,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 21:13:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:23,331 INFO L225 Difference]: With dead ends: 680 [2019-10-13 21:13:23,331 INFO L226 Difference]: Without dead ends: 485 [2019-10-13 21:13:23,336 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-13 21:13:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 484. [2019-10-13 21:13:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-10-13 21:13:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 657 transitions. [2019-10-13 21:13:23,402 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 657 transitions. Word has length 178 [2019-10-13 21:13:23,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:23,405 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 657 transitions. [2019-10-13 21:13:23,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 657 transitions. [2019-10-13 21:13:23,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:13:23,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:23,415 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] [2019-10-13 21:13:23,415 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:23,416 INFO L82 PathProgramCache]: Analyzing trace with hash 239347080, now seen corresponding path program 1 times [2019-10-13 21:13:23,416 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:23,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620376774] [2019-10-13 21:13:23,416 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:23,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:23,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:23,732 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620376774] [2019-10-13 21:13:23,732 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:23,732 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:23,732 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273127015] [2019-10-13 21:13:23,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:23,737 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:23,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:23,738 INFO L87 Difference]: Start difference. First operand 484 states and 657 transitions. Second operand 3 states. [2019-10-13 21:13:23,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:23,805 INFO L93 Difference]: Finished difference Result 948 states and 1318 transitions. [2019-10-13 21:13:23,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:23,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:13:23,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:23,812 INFO L225 Difference]: With dead ends: 948 [2019-10-13 21:13:23,813 INFO L226 Difference]: Without dead ends: 529 [2019-10-13 21:13:23,815 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-10-13 21:13:23,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 528. [2019-10-13 21:13:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 528 states. [2019-10-13 21:13:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 732 transitions. [2019-10-13 21:13:23,865 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 732 transitions. Word has length 190 [2019-10-13 21:13:23,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:23,866 INFO L462 AbstractCegarLoop]: Abstraction has 528 states and 732 transitions. [2019-10-13 21:13:23,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:23,866 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 732 transitions. [2019-10-13 21:13:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:13:23,875 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:23,876 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] [2019-10-13 21:13:23,876 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:23,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:23,877 INFO L82 PathProgramCache]: Analyzing trace with hash 459421880, now seen corresponding path program 1 times [2019-10-13 21:13:23,877 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:23,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093188914] [2019-10-13 21:13:23,877 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:23,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:23,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:24,077 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093188914] [2019-10-13 21:13:24,079 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:24,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:24,082 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753745327] [2019-10-13 21:13:24,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:24,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:24,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:24,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,087 INFO L87 Difference]: Start difference. First operand 528 states and 732 transitions. Second operand 3 states. [2019-10-13 21:13:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:24,136 INFO L93 Difference]: Finished difference Result 1077 states and 1538 transitions. [2019-10-13 21:13:24,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:24,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-13 21:13:24,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:24,143 INFO L225 Difference]: With dead ends: 1077 [2019-10-13 21:13:24,144 INFO L226 Difference]: Without dead ends: 614 [2019-10-13 21:13:24,146 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2019-10-13 21:13:24,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 613. [2019-10-13 21:13:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-13 21:13:24,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 876 transitions. [2019-10-13 21:13:24,191 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 876 transitions. Word has length 191 [2019-10-13 21:13:24,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:24,193 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 876 transitions. [2019-10-13 21:13:24,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:24,193 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 876 transitions. [2019-10-13 21:13:24,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:13:24,198 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:24,199 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] [2019-10-13 21:13:24,199 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:24,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:24,199 INFO L82 PathProgramCache]: Analyzing trace with hash 655741416, now seen corresponding path program 1 times [2019-10-13 21:13:24,200 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:24,201 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958328970] [2019-10-13 21:13:24,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,201 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:24,443 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:24,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958328970] [2019-10-13 21:13:24,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:24,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:24,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468232948] [2019-10-13 21:13:24,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:24,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:24,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:24,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,447 INFO L87 Difference]: Start difference. First operand 613 states and 876 transitions. Second operand 3 states. [2019-10-13 21:13:24,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:24,502 INFO L93 Difference]: Finished difference Result 1326 states and 1960 transitions. [2019-10-13 21:13:24,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:24,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:13:24,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:24,511 INFO L225 Difference]: With dead ends: 1326 [2019-10-13 21:13:24,511 INFO L226 Difference]: Without dead ends: 778 [2019-10-13 21:13:24,515 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2019-10-13 21:13:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 777. [2019-10-13 21:13:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-10-13 21:13:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1152 transitions. [2019-10-13 21:13:24,563 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1152 transitions. Word has length 192 [2019-10-13 21:13:24,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:24,564 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 1152 transitions. [2019-10-13 21:13:24,564 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:24,564 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1152 transitions. [2019-10-13 21:13:24,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:13:24,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:24,574 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] [2019-10-13 21:13:24,575 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:24,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:24,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1935139716, now seen corresponding path program 1 times [2019-10-13 21:13:24,576 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:24,576 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124233208] [2019-10-13 21:13:24,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:24,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:25,074 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:25,075 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124233208] [2019-10-13 21:13:25,075 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:25,076 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:13:25,076 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284063182] [2019-10-13 21:13:25,077 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:13:25,077 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:25,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:13:25,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:25,078 INFO L87 Difference]: Start difference. First operand 777 states and 1152 transitions. Second operand 13 states. [2019-10-13 21:13:27,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:27,873 INFO L93 Difference]: Finished difference Result 1686 states and 2497 transitions. [2019-10-13 21:13:27,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 21:13:27,874 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 194 [2019-10-13 21:13:27,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:27,883 INFO L225 Difference]: With dead ends: 1686 [2019-10-13 21:13:27,883 INFO L226 Difference]: Without dead ends: 1504 [2019-10-13 21:13:27,886 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 [2019-10-13 21:13:27,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2019-10-13 21:13:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1496. [2019-10-13 21:13:27,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2019-10-13 21:13:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 2243 transitions. [2019-10-13 21:13:27,968 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 2243 transitions. Word has length 194 [2019-10-13 21:13:27,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:27,969 INFO L462 AbstractCegarLoop]: Abstraction has 1496 states and 2243 transitions. [2019-10-13 21:13:27,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:13:27,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 2243 transitions. [2019-10-13 21:13:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:13:27,978 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:27,978 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] [2019-10-13 21:13:27,979 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:27,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:27,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1955843160, now seen corresponding path program 1 times [2019-10-13 21:13:27,979 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:27,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226706538] [2019-10-13 21:13:27,980 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:27,980 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:27,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:28,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226706538] [2019-10-13 21:13:28,123 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:28,123 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:28,123 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994443882] [2019-10-13 21:13:28,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:28,124 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:28,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:28,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:28,125 INFO L87 Difference]: Start difference. First operand 1496 states and 2243 transitions. Second operand 3 states. [2019-10-13 21:13:28,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:28,216 INFO L93 Difference]: Finished difference Result 3561 states and 5491 transitions. [2019-10-13 21:13:28,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:28,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-13 21:13:28,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:28,234 INFO L225 Difference]: With dead ends: 3561 [2019-10-13 21:13:28,235 INFO L226 Difference]: Without dead ends: 2130 [2019-10-13 21:13:28,244 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:28,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2019-10-13 21:13:28,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2128. [2019-10-13 21:13:28,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2019-10-13 21:13:28,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3303 transitions. [2019-10-13 21:13:28,427 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3303 transitions. Word has length 193 [2019-10-13 21:13:28,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:28,428 INFO L462 AbstractCegarLoop]: Abstraction has 2128 states and 3303 transitions. [2019-10-13 21:13:28,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:28,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3303 transitions. [2019-10-13 21:13:28,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:13:28,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:28,447 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] [2019-10-13 21:13:28,447 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:28,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1693972236, now seen corresponding path program 1 times [2019-10-13 21:13:28,448 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:28,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927492900] [2019-10-13 21:13:28,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:28,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:28,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:28,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927492900] [2019-10-13 21:13:28,740 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:28,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:28,741 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971577466] [2019-10-13 21:13:28,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:28,742 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:28,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:28,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:28,743 INFO L87 Difference]: Start difference. First operand 2128 states and 3303 transitions. Second operand 9 states. [2019-10-13 21:13:28,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:28,963 INFO L93 Difference]: Finished difference Result 2520 states and 3813 transitions. [2019-10-13 21:13:28,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:28,963 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-13 21:13:28,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:28,984 INFO L225 Difference]: With dead ends: 2520 [2019-10-13 21:13:28,984 INFO L226 Difference]: Without dead ends: 2151 [2019-10-13 21:13:28,988 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 [2019-10-13 21:13:28,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2151 states. [2019-10-13 21:13:29,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2151 to 2139. [2019-10-13 21:13:29,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2139 states. [2019-10-13 21:13:29,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2139 states to 2139 states and 3317 transitions. [2019-10-13 21:13:29,126 INFO L78 Accepts]: Start accepts. Automaton has 2139 states and 3317 transitions. Word has length 195 [2019-10-13 21:13:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:29,129 INFO L462 AbstractCegarLoop]: Abstraction has 2139 states and 3317 transitions. [2019-10-13 21:13:29,129 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 2139 states and 3317 transitions. [2019-10-13 21:13:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:13:29,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:29,143 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] [2019-10-13 21:13:29,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:29,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:29,144 INFO L82 PathProgramCache]: Analyzing trace with hash 839709138, now seen corresponding path program 1 times [2019-10-13 21:13:29,144 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:29,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024145487] [2019-10-13 21:13:29,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:29,145 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:29,356 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:29,356 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024145487] [2019-10-13 21:13:29,357 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:29,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:29,358 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753909886] [2019-10-13 21:13:29,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:29,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:29,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:29,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:29,360 INFO L87 Difference]: Start difference. First operand 2139 states and 3317 transitions. Second operand 6 states. [2019-10-13 21:13:29,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:29,987 INFO L93 Difference]: Finished difference Result 4609 states and 7105 transitions. [2019-10-13 21:13:29,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:29,987 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2019-10-13 21:13:29,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:30,021 INFO L225 Difference]: With dead ends: 4609 [2019-10-13 21:13:30,021 INFO L226 Difference]: Without dead ends: 4229 [2019-10-13 21:13:30,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2019-10-13 21:13:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4218. [2019-10-13 21:13:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4218 states. [2019-10-13 21:13:30,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 6603 transitions. [2019-10-13 21:13:30,332 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 6603 transitions. Word has length 195 [2019-10-13 21:13:30,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:30,333 INFO L462 AbstractCegarLoop]: Abstraction has 4218 states and 6603 transitions. [2019-10-13 21:13:30,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 6603 transitions. [2019-10-13 21:13:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:13:30,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:30,365 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] [2019-10-13 21:13:30,366 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:30,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:30,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1262166346, now seen corresponding path program 1 times [2019-10-13 21:13:30,366 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:30,367 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517011378] [2019-10-13 21:13:30,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:30,367 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:30,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:30,569 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517011378] [2019-10-13 21:13:30,569 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:30,569 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:30,570 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507583902] [2019-10-13 21:13:30,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:30,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:30,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:30,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:30,571 INFO L87 Difference]: Start difference. First operand 4218 states and 6603 transitions. Second operand 6 states. [2019-10-13 21:13:31,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:31,267 INFO L93 Difference]: Finished difference Result 9180 states and 14245 transitions. [2019-10-13 21:13:31,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:31,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2019-10-13 21:13:31,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:31,341 INFO L225 Difference]: With dead ends: 9180 [2019-10-13 21:13:31,341 INFO L226 Difference]: Without dead ends: 8415 [2019-10-13 21:13:31,360 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8415 states. [2019-10-13 21:13:31,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8415 to 8376. [2019-10-13 21:13:31,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8376 states. [2019-10-13 21:13:31,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8376 states to 8376 states and 13209 transitions. [2019-10-13 21:13:31,943 INFO L78 Accepts]: Start accepts. Automaton has 8376 states and 13209 transitions. Word has length 196 [2019-10-13 21:13:31,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:31,947 INFO L462 AbstractCegarLoop]: Abstraction has 8376 states and 13209 transitions. [2019-10-13 21:13:31,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:31,947 INFO L276 IsEmpty]: Start isEmpty. Operand 8376 states and 13209 transitions. [2019-10-13 21:13:31,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:13:31,999 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:31,999 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] [2019-10-13 21:13:32,000 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:32,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:32,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2024527560, now seen corresponding path program 1 times [2019-10-13 21:13:32,003 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:32,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694389429] [2019-10-13 21:13:32,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:32,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:32,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:32,357 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:32,358 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694389429] [2019-10-13 21:13:32,358 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:32,358 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:32,359 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729604875] [2019-10-13 21:13:32,359 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:32,359 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:32,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:32,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:32,360 INFO L87 Difference]: Start difference. First operand 8376 states and 13209 transitions. Second operand 9 states. [2019-10-13 21:13:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:32,689 INFO L93 Difference]: Finished difference Result 10031 states and 15371 transitions. [2019-10-13 21:13:32,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:32,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-13 21:13:32,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:32,743 INFO L225 Difference]: With dead ends: 10031 [2019-10-13 21:13:32,743 INFO L226 Difference]: Without dead ends: 8496 [2019-10-13 21:13:32,754 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 [2019-10-13 21:13:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2019-10-13 21:13:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8456. [2019-10-13 21:13:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8456 states. [2019-10-13 21:13:33,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8456 states to 8456 states and 13321 transitions. [2019-10-13 21:13:33,319 INFO L78 Accepts]: Start accepts. Automaton has 8456 states and 13321 transitions. Word has length 197 [2019-10-13 21:13:33,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:33,320 INFO L462 AbstractCegarLoop]: Abstraction has 8456 states and 13321 transitions. [2019-10-13 21:13:33,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:33,320 INFO L276 IsEmpty]: Start isEmpty. Operand 8456 states and 13321 transitions. [2019-10-13 21:13:33,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:13:33,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:33,386 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] [2019-10-13 21:13:33,386 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:33,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:33,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1416443918, now seen corresponding path program 1 times [2019-10-13 21:13:33,387 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:33,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817371933] [2019-10-13 21:13:33,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:33,388 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:33,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:33,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:33,648 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2019-10-13 21:13:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:33,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817371933] [2019-10-13 21:13:33,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:33,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:33,713 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115935789] [2019-10-13 21:13:33,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:33,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:33,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:33,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:33,714 INFO L87 Difference]: Start difference. First operand 8456 states and 13321 transitions. Second operand 9 states. [2019-10-13 21:13:34,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:34,054 INFO L93 Difference]: Finished difference Result 10111 states and 15469 transitions. [2019-10-13 21:13:34,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:34,054 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 197 [2019-10-13 21:13:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:34,102 INFO L225 Difference]: With dead ends: 10111 [2019-10-13 21:13:34,102 INFO L226 Difference]: Without dead ends: 8496 [2019-10-13 21:13:34,115 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:13:34,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8496 states. [2019-10-13 21:13:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8496 to 8456. [2019-10-13 21:13:34,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8456 states. [2019-10-13 21:13:34,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8456 states to 8456 states and 13299 transitions. [2019-10-13 21:13:34,579 INFO L78 Accepts]: Start accepts. Automaton has 8456 states and 13299 transitions. Word has length 197 [2019-10-13 21:13:34,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:34,580 INFO L462 AbstractCegarLoop]: Abstraction has 8456 states and 13299 transitions. [2019-10-13 21:13:34,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand 8456 states and 13299 transitions. [2019-10-13 21:13:34,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:13:34,630 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:34,631 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] [2019-10-13 21:13:34,631 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:34,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:34,632 INFO L82 PathProgramCache]: Analyzing trace with hash -457825732, now seen corresponding path program 1 times [2019-10-13 21:13:34,632 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:34,632 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860221076] [2019-10-13 21:13:34,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:34,632 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:34,633 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:34,816 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860221076] [2019-10-13 21:13:34,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:34,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:34,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614428949] [2019-10-13 21:13:34,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:34,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:34,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:34,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:34,818 INFO L87 Difference]: Start difference. First operand 8456 states and 13299 transitions. Second operand 6 states. [2019-10-13 21:13:35,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:35,712 INFO L93 Difference]: Finished difference Result 18450 states and 28713 transitions. [2019-10-13 21:13:35,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:35,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2019-10-13 21:13:35,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:35,802 INFO L225 Difference]: With dead ends: 18450 [2019-10-13 21:13:35,802 INFO L226 Difference]: Without dead ends: 16468 [2019-10-13 21:13:35,824 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:35,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16468 states. [2019-10-13 21:13:37,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16468 to 16407. [2019-10-13 21:13:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16407 states. [2019-10-13 21:13:37,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16407 states to 16407 states and 26017 transitions. [2019-10-13 21:13:37,277 INFO L78 Accepts]: Start accepts. Automaton has 16407 states and 26017 transitions. Word has length 198 [2019-10-13 21:13:37,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:37,277 INFO L462 AbstractCegarLoop]: Abstraction has 16407 states and 26017 transitions. [2019-10-13 21:13:37,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand 16407 states and 26017 transitions. [2019-10-13 21:13:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:13:37,340 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:37,340 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] [2019-10-13 21:13:37,340 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:37,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:37,341 INFO L82 PathProgramCache]: Analyzing trace with hash -125865389, now seen corresponding path program 1 times [2019-10-13 21:13:37,341 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:37,341 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764244000] [2019-10-13 21:13:37,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:37,487 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764244000] [2019-10-13 21:13:37,487 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:37,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:37,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376104434] [2019-10-13 21:13:37,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:37,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:37,489 INFO L87 Difference]: Start difference. First operand 16407 states and 26017 transitions. Second operand 3 states. [2019-10-13 21:13:38,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:38,054 INFO L93 Difference]: Finished difference Result 42493 states and 68713 transitions. [2019-10-13 21:13:38,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:38,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2019-10-13 21:13:38,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:38,189 INFO L225 Difference]: With dead ends: 42493 [2019-10-13 21:13:38,189 INFO L226 Difference]: Without dead ends: 26149 [2019-10-13 21:13:38,279 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26149 states. [2019-10-13 21:13:39,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26149 to 26135. [2019-10-13 21:13:39,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26135 states. [2019-10-13 21:13:39,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26135 states to 26135 states and 42497 transitions. [2019-10-13 21:13:39,670 INFO L78 Accepts]: Start accepts. Automaton has 26135 states and 42497 transitions. Word has length 201 [2019-10-13 21:13:39,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:39,670 INFO L462 AbstractCegarLoop]: Abstraction has 26135 states and 42497 transitions. [2019-10-13 21:13:39,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 26135 states and 42497 transitions. [2019-10-13 21:13:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:13:39,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:39,764 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] [2019-10-13 21:13:39,764 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:39,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:39,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1306151587, now seen corresponding path program 1 times [2019-10-13 21:13:39,765 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:39,765 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645759021] [2019-10-13 21:13:39,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,765 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:40,144 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645759021] [2019-10-13 21:13:40,144 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,144 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:13:40,144 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486388165] [2019-10-13 21:13:40,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:13:40,145 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:13:40,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:13:40,146 INFO L87 Difference]: Start difference. First operand 26135 states and 42497 transitions. Second operand 8 states. [2019-10-13 21:13:40,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:40,599 INFO L93 Difference]: Finished difference Result 26135 states and 42497 transitions. [2019-10-13 21:13:40,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:40,600 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 202 [2019-10-13 21:13:40,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:40,601 INFO L225 Difference]: With dead ends: 26135 [2019-10-13 21:13:40,601 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:13:40,679 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:13:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:13:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:13:40,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:13:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:13:40,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2019-10-13 21:13:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:40,686 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:13:40,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:13:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:13:40,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:13:40,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:13:41,144 WARN L191 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:41,284 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 10 [2019-10-13 21:13:41,589 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 10 [2019-10-13 21:13:42,300 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-13 21:13:43,428 WARN L191 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:43,719 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:43,993 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 6 [2019-10-13 21:13:44,362 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:45,553 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:46,021 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:46,538 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:46,715 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6 [2019-10-13 21:13:47,167 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 6