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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:11:53,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:11:53,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:11:53,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:11:53,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:11:53,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:11:53,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:11:53,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:11:53,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:11:53,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:11:53,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:11:53,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:11:53,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:11:53,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:11:53,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:11:53,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:11:53,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:11:53,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:11:53,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:11:53,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:11:53,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:11:53,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:11:53,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:11:53,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:11:53,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:11:53,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:11:53,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:11:53,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:11:53,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:11:53,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:11:53,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:11:53,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:11:53,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:11:53,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:11:53,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:11:53,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:11:53,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:11:53,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:11:53,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:11:53,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:11:53,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:11:53,552 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:11:53,573 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:11:53,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:11:53,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:11:53,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:11:53,576 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:11:53,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:11:53,577 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:11:53,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:11:53,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:11:53,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:11:53,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:11:53,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:11:53,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:11:53,580 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:11:53,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:11:53,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:11:53,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:11:53,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:11:53,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:11:53,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:11:53,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:11:53,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:53,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:11:53,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:11:53,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:11:53,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:11:53,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:11:53,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:11:53,583 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:11:53,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:11:53,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:11:53,929 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:11:53,931 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:11:53,931 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:11:53,932 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2019-10-15 01:11:53,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c5acc93/ddf5ff0db40343748dc2faa4b78c0a3a/FLAG6acd70e79 [2019-10-15 01:11:54,596 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:11:54,597 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2019-10-15 01:11:54,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c5acc93/ddf5ff0db40343748dc2faa4b78c0a3a/FLAG6acd70e79 [2019-10-15 01:11:54,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48c5acc93/ddf5ff0db40343748dc2faa4b78c0a3a [2019-10-15 01:11:54,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:11:54,852 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:11:54,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:54,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:11:54,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:11:54,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:54" (1/1) ... [2019-10-15 01:11:54,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aed49ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:54, skipping insertion in model container [2019-10-15 01:11:54,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:54" (1/1) ... [2019-10-15 01:11:54,866 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:11:54,947 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:11:55,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:55,690 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:11:55,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:56,029 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:11:56,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56 WrapperNode [2019-10-15 01:11:56,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:56,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:11:56,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:11:56,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:11:56,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... [2019-10-15 01:11:56,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:11:56,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:11:56,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:11:56,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:11:56,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:11:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:11:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:56,350 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:11:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:11:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:11:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:11:56,351 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:11:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:11:56,352 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:11:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:11:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:11:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:11:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:11:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:11:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:11:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:11:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:11:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:11:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:11:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:11:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:11:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:11:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:11:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:11:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:11:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:11:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:11:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:11:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:11:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:11:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:11:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:11:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:11:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:11:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:11:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:11:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:11:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:11:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:11:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:11:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:11:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:11:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:11:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:11:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:11:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:11:56,362 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:11:56,363 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:11:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:11:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:11:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:11:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:11:56,364 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:11:56,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:11:56,366 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:11:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:11:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:11:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:11:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:11:56,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:11:56,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:11:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:11:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:11:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:11:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:11:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:11:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:11:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:11:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:11:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:11:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:11:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:11:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:11:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:11:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:11:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:11:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:11:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:11:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:11:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:11:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:11:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:11:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:11:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:11:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:11:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:11:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:11:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:11:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:11:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:11:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:11:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:11:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:11:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:11:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:11:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:11:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:11:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:11:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:11:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:11:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:11:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:11:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:11:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:11:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:11:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:11:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:11:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:11:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:11:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:11:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:11:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:11:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:11:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:11:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:11:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:11:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:11:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:11:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:11:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:11:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:11:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:11:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:11:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:11:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:11:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:11:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:11:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:11:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:11:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:11:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:11:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:11:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:11:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:11:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:11:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:11:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:11:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:11:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:11:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:11:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:11:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:11:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:11:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:11:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:11:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:11:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:11:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:11:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:11:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:11:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:11:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:11:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:11:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:11:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:11:58,730 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:11:58,730 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:11:58,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:58 BoogieIcfgContainer [2019-10-15 01:11:58,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:11:58,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:11:58,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:11:58,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:11:58,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:11:54" (1/3) ... [2019-10-15 01:11:58,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96762e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:58, skipping insertion in model container [2019-10-15 01:11:58,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:56" (2/3) ... [2019-10-15 01:11:58,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@96762e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:58, skipping insertion in model container [2019-10-15 01:11:58,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:58" (3/3) ... [2019-10-15 01:11:58,745 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.c [2019-10-15 01:11:58,755 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:11:58,768 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:11:58,781 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:11:58,832 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:11:58,832 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:11:58,832 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:11:58,832 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:11:58,833 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:11:58,833 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:11:58,833 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:11:58,833 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:11:58,865 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-15 01:11:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:11:58,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:58,899 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:58,901 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:58,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:58,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1050293999, now seen corresponding path program 1 times [2019-10-15 01:11:58,922 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:58,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69456789] [2019-10-15 01:11:58,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:58,923 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:58,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:59,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69456789] [2019-10-15 01:11:59,635 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:59,636 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:11:59,636 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540936201] [2019-10-15 01:11:59,642 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:11:59,644 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:59,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:11:59,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:59,662 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-15 01:11:59,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:59,758 INFO L93 Difference]: Finished difference Result 871 states and 1181 transitions. [2019-10-15 01:11:59,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:11:59,762 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 209 [2019-10-15 01:11:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:59,786 INFO L225 Difference]: With dead ends: 871 [2019-10-15 01:11:59,787 INFO L226 Difference]: Without dead ends: 569 [2019-10-15 01:11:59,794 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:59,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-10-15 01:11:59,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2019-10-15 01:11:59,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-15 01:11:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 775 transitions. [2019-10-15 01:11:59,909 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 775 transitions. Word has length 209 [2019-10-15 01:11:59,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:59,911 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 775 transitions. [2019-10-15 01:11:59,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:11:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 775 transitions. [2019-10-15 01:11:59,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:11:59,920 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:59,920 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:59,920 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:59,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1566712798, now seen corresponding path program 1 times [2019-10-15 01:11:59,921 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:59,921 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335618050] [2019-10-15 01:11:59,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:59,922 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:59,922 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:00,164 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:00,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335618050] [2019-10-15 01:12:00,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:00,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:00,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294267233] [2019-10-15 01:12:00,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:00,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:00,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:00,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:00,169 INFO L87 Difference]: Start difference. First operand 569 states and 775 transitions. Second operand 3 states. [2019-10-15 01:12:00,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:00,250 INFO L93 Difference]: Finished difference Result 854 states and 1144 transitions. [2019-10-15 01:12:00,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:00,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2019-10-15 01:12:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:00,263 INFO L225 Difference]: With dead ends: 854 [2019-10-15 01:12:00,264 INFO L226 Difference]: Without dead ends: 572 [2019-10-15 01:12:00,268 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-15 01:12:00,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2019-10-15 01:12:00,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-15 01:12:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 777 transitions. [2019-10-15 01:12:00,325 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 777 transitions. Word has length 210 [2019-10-15 01:12:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:00,327 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 777 transitions. [2019-10-15 01:12:00,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:00,327 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 777 transitions. [2019-10-15 01:12:00,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:12:00,334 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:00,334 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:00,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:00,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:00,335 INFO L82 PathProgramCache]: Analyzing trace with hash 641729421, now seen corresponding path program 1 times [2019-10-15 01:12:00,335 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:00,335 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48327562] [2019-10-15 01:12:00,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,335 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:00,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48327562] [2019-10-15 01:12:00,684 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:00,684 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:00,684 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964744404] [2019-10-15 01:12:00,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:00,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:00,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:00,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:00,693 INFO L87 Difference]: Start difference. First operand 571 states and 777 transitions. Second operand 3 states. [2019-10-15 01:12:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:00,765 INFO L93 Difference]: Finished difference Result 1122 states and 1558 transitions. [2019-10-15 01:12:00,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:00,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-15 01:12:00,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:00,777 INFO L225 Difference]: With dead ends: 1122 [2019-10-15 01:12:00,777 INFO L226 Difference]: Without dead ends: 616 [2019-10-15 01:12:00,781 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:00,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-15 01:12:00,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2019-10-15 01:12:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-15 01:12:00,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2019-10-15 01:12:00,829 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 222 [2019-10-15 01:12:00,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:00,830 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2019-10-15 01:12:00,830 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2019-10-15 01:12:00,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-15 01:12:00,841 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:00,841 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:00,842 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:00,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:00,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1183894692, now seen corresponding path program 1 times [2019-10-15 01:12:00,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:00,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297581075] [2019-10-15 01:12:00,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,848 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:00,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:01,062 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297581075] [2019-10-15 01:12:01,062 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:01,063 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:01,063 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719451036] [2019-10-15 01:12:01,063 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:01,064 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:01,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:01,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:01,064 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand 3 states. [2019-10-15 01:12:01,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:01,102 INFO L93 Difference]: Finished difference Result 1251 states and 1778 transitions. [2019-10-15 01:12:01,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:01,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 223 [2019-10-15 01:12:01,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:01,107 INFO L225 Difference]: With dead ends: 1251 [2019-10-15 01:12:01,107 INFO L226 Difference]: Without dead ends: 701 [2019-10-15 01:12:01,110 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:01,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-15 01:12:01,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-15 01:12:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-15 01:12:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 996 transitions. [2019-10-15 01:12:01,139 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 996 transitions. Word has length 223 [2019-10-15 01:12:01,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:01,140 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 996 transitions. [2019-10-15 01:12:01,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 996 transitions. [2019-10-15 01:12:01,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:12:01,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:01,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:01,146 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:01,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:01,147 INFO L82 PathProgramCache]: Analyzing trace with hash -577752831, now seen corresponding path program 1 times [2019-10-15 01:12:01,147 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:01,147 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096030148] [2019-10-15 01:12:01,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:01,623 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:01,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096030148] [2019-10-15 01:12:01,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:01,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:01,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581653728] [2019-10-15 01:12:01,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:01,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:01,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:01,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:01,626 INFO L87 Difference]: Start difference. First operand 700 states and 996 transitions. Second operand 19 states. [2019-10-15 01:12:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:07,072 INFO L93 Difference]: Finished difference Result 2240 states and 3191 transitions. [2019-10-15 01:12:07,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:07,072 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 226 [2019-10-15 01:12:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:07,086 INFO L225 Difference]: With dead ends: 2240 [2019-10-15 01:12:07,087 INFO L226 Difference]: Without dead ends: 1971 [2019-10-15 01:12:07,091 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2019-10-15 01:12:07,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1934. [2019-10-15 01:12:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-10-15 01:12:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2772 transitions. [2019-10-15 01:12:07,212 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2772 transitions. Word has length 226 [2019-10-15 01:12:07,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:07,212 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 2772 transitions. [2019-10-15 01:12:07,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2772 transitions. [2019-10-15 01:12:07,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:07,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:07,227 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:07,227 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash 893920590, now seen corresponding path program 1 times [2019-10-15 01:12:07,228 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:07,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963925775] [2019-10-15 01:12:07,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:07,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:07,480 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:07,481 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963925775] [2019-10-15 01:12:07,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:07,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:07,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3564243] [2019-10-15 01:12:07,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:07,482 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:07,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:07,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:07,483 INFO L87 Difference]: Start difference. First operand 1934 states and 2772 transitions. Second operand 11 states. [2019-10-15 01:12:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:08,067 INFO L93 Difference]: Finished difference Result 3191 states and 4529 transitions. [2019-10-15 01:12:08,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:08,068 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 227 [2019-10-15 01:12:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:08,082 INFO L225 Difference]: With dead ends: 3191 [2019-10-15 01:12:08,083 INFO L226 Difference]: Without dead ends: 2056 [2019-10-15 01:12:08,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:08,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2019-10-15 01:12:08,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2019-10-15 01:12:08,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-15 01:12:08,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2969 transitions. [2019-10-15 01:12:08,220 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2969 transitions. Word has length 227 [2019-10-15 01:12:08,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:08,221 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2969 transitions. [2019-10-15 01:12:08,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:08,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2969 transitions. [2019-10-15 01:12:08,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:08,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:08,232 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:08,232 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:08,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:08,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1553480520, now seen corresponding path program 1 times [2019-10-15 01:12:08,233 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:08,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759685138] [2019-10-15 01:12:08,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,233 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:08,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:08,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:12:08,572 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759685138] [2019-10-15 01:12:08,572 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:08,572 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:08,572 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303732630] [2019-10-15 01:12:08,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:08,573 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:08,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:08,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:08,574 INFO L87 Difference]: Start difference. First operand 2056 states and 2969 transitions. Second operand 16 states. [2019-10-15 01:12:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:09,172 INFO L93 Difference]: Finished difference Result 3329 states and 4737 transitions. [2019-10-15 01:12:09,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:09,173 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 227 [2019-10-15 01:12:09,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:09,236 INFO L225 Difference]: With dead ends: 3329 [2019-10-15 01:12:09,237 INFO L226 Difference]: Without dead ends: 2112 [2019-10-15 01:12:09,242 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:09,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2112 states. [2019-10-15 01:12:09,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2112 to 2112. [2019-10-15 01:12:09,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2019-10-15 01:12:09,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 3034 transitions. [2019-10-15 01:12:09,354 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 3034 transitions. Word has length 227 [2019-10-15 01:12:09,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:09,356 INFO L462 AbstractCegarLoop]: Abstraction has 2112 states and 3034 transitions. [2019-10-15 01:12:09,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:09,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 3034 transitions. [2019-10-15 01:12:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:09,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:09,368 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:09,368 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:09,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:09,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1022222007, now seen corresponding path program 1 times [2019-10-15 01:12:09,369 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:09,369 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735083822] [2019-10-15 01:12:09,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:09,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:09,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:09,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:09,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735083822] [2019-10-15 01:12:09,697 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:09,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:09,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795928641] [2019-10-15 01:12:09,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:09,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:09,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:09,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:09,699 INFO L87 Difference]: Start difference. First operand 2112 states and 3034 transitions. Second operand 15 states. [2019-10-15 01:12:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:13,485 INFO L93 Difference]: Finished difference Result 3467 states and 4933 transitions. [2019-10-15 01:12:13,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:13,486 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 227 [2019-10-15 01:12:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:13,503 INFO L225 Difference]: With dead ends: 3467 [2019-10-15 01:12:13,503 INFO L226 Difference]: Without dead ends: 2214 [2019-10-15 01:12:13,511 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:13,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2019-10-15 01:12:13,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2182. [2019-10-15 01:12:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2182 states. [2019-10-15 01:12:13,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 3147 transitions. [2019-10-15 01:12:13,678 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 3147 transitions. Word has length 227 [2019-10-15 01:12:13,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:13,679 INFO L462 AbstractCegarLoop]: Abstraction has 2182 states and 3147 transitions. [2019-10-15 01:12:13,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:13,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 3147 transitions. [2019-10-15 01:12:13,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:13,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:13,689 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:13,689 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:13,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:13,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1111356124, now seen corresponding path program 1 times [2019-10-15 01:12:13,690 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:13,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607875096] [2019-10-15 01:12:13,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:13,899 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607875096] [2019-10-15 01:12:13,901 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:13,901 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:13,902 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549986444] [2019-10-15 01:12:13,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:13,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:13,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:13,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:13,904 INFO L87 Difference]: Start difference. First operand 2182 states and 3147 transitions. Second operand 5 states. [2019-10-15 01:12:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:15,271 INFO L93 Difference]: Finished difference Result 5250 states and 7491 transitions. [2019-10-15 01:12:15,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:15,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 227 [2019-10-15 01:12:15,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:15,301 INFO L225 Difference]: With dead ends: 5250 [2019-10-15 01:12:15,302 INFO L226 Difference]: Without dead ends: 4583 [2019-10-15 01:12:15,308 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:15,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4583 states. [2019-10-15 01:12:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4583 to 4569. [2019-10-15 01:12:15,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4569 states. [2019-10-15 01:12:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4569 states to 4569 states and 6556 transitions. [2019-10-15 01:12:15,586 INFO L78 Accepts]: Start accepts. Automaton has 4569 states and 6556 transitions. Word has length 227 [2019-10-15 01:12:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:15,586 INFO L462 AbstractCegarLoop]: Abstraction has 4569 states and 6556 transitions. [2019-10-15 01:12:15,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:15,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4569 states and 6556 transitions. [2019-10-15 01:12:15,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:12:15,599 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:15,600 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:15,600 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:15,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:15,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1329265635, now seen corresponding path program 1 times [2019-10-15 01:12:15,601 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:15,601 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950439961] [2019-10-15 01:12:15,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,601 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:15,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:15,862 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950439961] [2019-10-15 01:12:15,863 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:15,863 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:12:15,863 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209503303] [2019-10-15 01:12:15,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:12:15,865 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:15,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:12:15,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:15,865 INFO L87 Difference]: Start difference. First operand 4569 states and 6556 transitions. Second operand 13 states. [2019-10-15 01:12:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:19,311 INFO L93 Difference]: Finished difference Result 12522 states and 18273 transitions. [2019-10-15 01:12:19,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:12:19,312 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 227 [2019-10-15 01:12:19,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:19,398 INFO L225 Difference]: With dead ends: 12522 [2019-10-15 01:12:19,398 INFO L226 Difference]: Without dead ends: 9209 [2019-10-15 01:12:19,448 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:12:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9209 states. [2019-10-15 01:12:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9209 to 9166. [2019-10-15 01:12:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9166 states. [2019-10-15 01:12:20,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9166 states to 9166 states and 13139 transitions. [2019-10-15 01:12:20,034 INFO L78 Accepts]: Start accepts. Automaton has 9166 states and 13139 transitions. Word has length 227 [2019-10-15 01:12:20,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:20,035 INFO L462 AbstractCegarLoop]: Abstraction has 9166 states and 13139 transitions. [2019-10-15 01:12:20,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:12:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9166 states and 13139 transitions. [2019-10-15 01:12:20,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:12:20,071 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:20,071 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:20,072 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:20,072 INFO L82 PathProgramCache]: Analyzing trace with hash 423873233, now seen corresponding path program 1 times [2019-10-15 01:12:20,073 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:20,073 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908397418] [2019-10-15 01:12:20,073 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:20,074 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:20,074 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:20,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908397418] [2019-10-15 01:12:20,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:20,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:20,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554804242] [2019-10-15 01:12:20,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:20,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:20,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:20,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:20,390 INFO L87 Difference]: Start difference. First operand 9166 states and 13139 transitions. Second operand 3 states. [2019-10-15 01:12:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:20,753 INFO L93 Difference]: Finished difference Result 19257 states and 28005 transitions. [2019-10-15 01:12:20,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:20,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-15 01:12:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:20,820 INFO L225 Difference]: With dead ends: 19257 [2019-10-15 01:12:20,820 INFO L226 Difference]: Without dead ends: 10156 [2019-10-15 01:12:20,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:20,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10156 states. [2019-10-15 01:12:21,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10156 to 10150. [2019-10-15 01:12:21,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10150 states. [2019-10-15 01:12:21,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10150 states to 10150 states and 14909 transitions. [2019-10-15 01:12:21,414 INFO L78 Accepts]: Start accepts. Automaton has 10150 states and 14909 transitions. Word has length 225 [2019-10-15 01:12:21,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:21,414 INFO L462 AbstractCegarLoop]: Abstraction has 10150 states and 14909 transitions. [2019-10-15 01:12:21,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 10150 states and 14909 transitions. [2019-10-15 01:12:21,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-15 01:12:21,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:21,447 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:21,447 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:21,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:21,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1720613858, now seen corresponding path program 1 times [2019-10-15 01:12:21,448 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:21,448 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738486113] [2019-10-15 01:12:21,448 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:21,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:21,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:21,822 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:21,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738486113] [2019-10-15 01:12:21,823 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:21,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:21,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851795517] [2019-10-15 01:12:21,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:21,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:21,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:21,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:21,826 INFO L87 Difference]: Start difference. First operand 10150 states and 14909 transitions. Second operand 11 states. [2019-10-15 01:12:22,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:22,277 INFO L93 Difference]: Finished difference Result 17259 states and 25071 transitions. [2019-10-15 01:12:22,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:22,278 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2019-10-15 01:12:22,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:22,329 INFO L225 Difference]: With dead ends: 17259 [2019-10-15 01:12:22,329 INFO L226 Difference]: Without dead ends: 10870 [2019-10-15 01:12:22,357 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:22,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10870 states. [2019-10-15 01:12:22,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10870 to 10790. [2019-10-15 01:12:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10790 states. [2019-10-15 01:12:22,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10790 states to 10790 states and 15954 transitions. [2019-10-15 01:12:22,841 INFO L78 Accepts]: Start accepts. Automaton has 10790 states and 15954 transitions. Word has length 228 [2019-10-15 01:12:22,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:22,842 INFO L462 AbstractCegarLoop]: Abstraction has 10790 states and 15954 transitions. [2019-10-15 01:12:22,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:22,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10790 states and 15954 transitions. [2019-10-15 01:12:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-15 01:12:22,873 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:22,874 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:22,874 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:22,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1999732818, now seen corresponding path program 1 times [2019-10-15 01:12:22,874 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:22,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60006106] [2019-10-15 01:12:22,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:22,875 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:22,875 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:23,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60006106] [2019-10-15 01:12:23,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:23,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:23,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798761847] [2019-10-15 01:12:23,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:23,191 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:23,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:23,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:23,193 INFO L87 Difference]: Start difference. First operand 10790 states and 15954 transitions. Second operand 9 states. [2019-10-15 01:12:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:23,622 INFO L93 Difference]: Finished difference Result 18263 states and 26779 transitions. [2019-10-15 01:12:23,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:23,623 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 229 [2019-10-15 01:12:23,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:23,674 INFO L225 Difference]: With dead ends: 18263 [2019-10-15 01:12:23,674 INFO L226 Difference]: Without dead ends: 10910 [2019-10-15 01:12:23,703 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10910 states. [2019-10-15 01:12:24,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10910 to 10830. [2019-10-15 01:12:24,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10830 states. [2019-10-15 01:12:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10830 states to 10830 states and 15994 transitions. [2019-10-15 01:12:24,173 INFO L78 Accepts]: Start accepts. Automaton has 10830 states and 15994 transitions. Word has length 229 [2019-10-15 01:12:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:24,174 INFO L462 AbstractCegarLoop]: Abstraction has 10830 states and 15994 transitions. [2019-10-15 01:12:24,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand 10830 states and 15994 transitions. [2019-10-15 01:12:24,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-15 01:12:24,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:24,206 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:24,206 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:24,207 INFO L82 PathProgramCache]: Analyzing trace with hash 41914732, now seen corresponding path program 1 times [2019-10-15 01:12:24,207 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:24,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176688571] [2019-10-15 01:12:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:24,208 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:24,542 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:24,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176688571] [2019-10-15 01:12:24,543 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:24,543 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:24,544 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107463695] [2019-10-15 01:12:24,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:24,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:24,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:24,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:24,546 INFO L87 Difference]: Start difference. First operand 10830 states and 15994 transitions. Second operand 6 states. [2019-10-15 01:12:25,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:25,537 INFO L93 Difference]: Finished difference Result 29268 states and 43204 transitions. [2019-10-15 01:12:25,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:25,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2019-10-15 01:12:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:25,643 INFO L225 Difference]: With dead ends: 29268 [2019-10-15 01:12:25,643 INFO L226 Difference]: Without dead ends: 21875 [2019-10-15 01:12:25,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:25,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21875 states.