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_spec7_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:57,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:57,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:57,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:57,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:57,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:57,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:57,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:57,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:57,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:57,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:57,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:57,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:57,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:57,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:57,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:57,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:57,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:57,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:57,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:57,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:57,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:57,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:57,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:57,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:57,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:57,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:57,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:57,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:57,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:57,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:57,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:57,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:57,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:57,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:57,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:57,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:57,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:57,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:57,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:57,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:57,426 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 01:16:57,446 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:57,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:57,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:57,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:57,449 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:57,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:57,449 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:57,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:57,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:57,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:57,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:57,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:57,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:57,452 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:57,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:57,453 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:57,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:57,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:57,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:57,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:57,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:57,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:57,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:57,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:57,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:57,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:57,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:57,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:57,456 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 01:16:57,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:57,847 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:57,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:57,853 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:57,853 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:57,854 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-15 01:16:57,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33cd058ad/1ecb9b1499f9457396cbfd83e293a44d/FLAG8605d32b3 [2019-10-15 01:16:58,602 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:58,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_productSimulator.cil.c [2019-10-15 01:16:58,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33cd058ad/1ecb9b1499f9457396cbfd83e293a44d/FLAG8605d32b3 [2019-10-15 01:16:58,778 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33cd058ad/1ecb9b1499f9457396cbfd83e293a44d [2019-10-15 01:16:58,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:58,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:58,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:58,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:58,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:58,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52da3fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:58, skipping insertion in model container [2019-10-15 01:16:58,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:58" (1/1) ... [2019-10-15 01:16:58,808 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:58,901 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:59,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:59,751 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:59,877 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:17:00,144 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:17:00,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00 WrapperNode [2019-10-15 01:17:00,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:17:00,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:17:00,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:17:00,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:17:00,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (1/1) ... [2019-10-15 01:17:00,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:17:00,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:17:00,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:17:00,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:17:00,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (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 01:17:00,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:17:00,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:17:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:17:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-15 01:17:00,458 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-15 01:17:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-15 01:17:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-15 01:17:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-15 01:17:00,459 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-15 01:17:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:17:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:17:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-15 01:17:00,460 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-15 01:17:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-15 01:17:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-15 01:17:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-15 01:17:00,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-15 01:17:00,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-15 01:17:00,463 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-15 01:17:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:17:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:17:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:17:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:17:00,464 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:17:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:17:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:17:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:17:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:17:00,465 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:17:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:17:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:17:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:17:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:17:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:17:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:17:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:17:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:17:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:17:00,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:17:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:17:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:17:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:17:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:17:00,468 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:17:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:17:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:17:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:17:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:17:00,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:17:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:17:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:17:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:17:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:17:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:17:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-15 01:17:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-15 01:17:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:17:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-15 01:17:00,471 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-15 01:17:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:17:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-15 01:17:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-15 01:17:00,472 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:17:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:17:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:17:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:17:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:17:00,473 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:17:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:17:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:17:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:17:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:17:00,474 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:17:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:17:00,475 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:17:00,477 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:17:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:17:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:17:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:17:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:17:00,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-15 01:17:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-15 01:17:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-15 01:17:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-15 01:17:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-15 01:17:00,479 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-15 01:17:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:17:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-15 01:17:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-15 01:17:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:17:00,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:17:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:17:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:17:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:17:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:17:00,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:17:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:17:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:17:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:17:00,482 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:17:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:17:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:17:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:17:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:17:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:17:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:17:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:17:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:17:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:17:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:17:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:17:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:17:00,508 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:17:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:17:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:17:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:17:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:17:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:17:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:17:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:17:00,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:17:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:17:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:17:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:17:00,516 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:17:00,517 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:17:00,518 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:17:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:17:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:17:00,521 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-15 01:17:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-15 01:17:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:17:00,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:17:00,525 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:17:00,526 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:17:00,527 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:17:00,528 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:17:00,529 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-15 01:17:00,530 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-15 01:17:00,531 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:17:00,532 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:17:00,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:17:00,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:17:00,535 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:17:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:17:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:17:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:17:00,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:17:02,883 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:17:02,884 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:17:02,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:02 BoogieIcfgContainer [2019-10-15 01:17:02,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:17:02,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:17:02,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:17:02,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:17:02,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:58" (1/3) ... [2019-10-15 01:17:02,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492f0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:02, skipping insertion in model container [2019-10-15 01:17:02,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:17:00" (2/3) ... [2019-10-15 01:17:02,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492f0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:17:02, skipping insertion in model container [2019-10-15 01:17:02,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:17:02" (3/3) ... [2019-10-15 01:17:02,897 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_productSimulator.cil.c [2019-10-15 01:17:02,908 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:17:02,920 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:17:02,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:17:02,974 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:17:02,974 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:17:02,974 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:17:02,975 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:17:02,975 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:17:02,975 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:17:02,975 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:17:02,975 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:17:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states. [2019-10-15 01:17:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:17:03,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:03,096 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:03,099 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:03,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:03,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1981240698, now seen corresponding path program 1 times [2019-10-15 01:17:03,115 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:03,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408672168] [2019-10-15 01:17:03,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:03,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:03,839 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408672168] [2019-10-15 01:17:03,840 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:03,840 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:03,840 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977439648] [2019-10-15 01:17:03,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:03,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:03,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:03,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:03,867 INFO L87 Difference]: Start difference. First operand 810 states. Second operand 6 states. [2019-10-15 01:17:04,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:04,093 INFO L93 Difference]: Finished difference Result 1538 states and 2131 transitions. [2019-10-15 01:17:04,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:17:04,096 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 190 [2019-10-15 01:17:04,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:04,144 INFO L225 Difference]: With dead ends: 1538 [2019-10-15 01:17:04,144 INFO L226 Difference]: Without dead ends: 781 [2019-10-15 01:17:04,160 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:04,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-10-15 01:17:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 781. [2019-10-15 01:17:04,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2019-10-15 01:17:04,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1063 transitions. [2019-10-15 01:17:04,340 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1063 transitions. Word has length 190 [2019-10-15 01:17:04,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:04,345 INFO L462 AbstractCegarLoop]: Abstraction has 781 states and 1063 transitions. [2019-10-15 01:17:04,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:17:04,346 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1063 transitions. [2019-10-15 01:17:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:17:04,365 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:04,365 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:04,366 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:04,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:04,367 INFO L82 PathProgramCache]: Analyzing trace with hash 109619264, now seen corresponding path program 1 times [2019-10-15 01:17:04,367 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:04,368 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258487122] [2019-10-15 01:17:04,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,368 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:04,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258487122] [2019-10-15 01:17:04,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:04,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:17:04,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179510073] [2019-10-15 01:17:04,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:17:04,689 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:04,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:17:04,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:04,690 INFO L87 Difference]: Start difference. First operand 781 states and 1063 transitions. Second operand 4 states. [2019-10-15 01:17:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:05,509 INFO L93 Difference]: Finished difference Result 1519 states and 2091 transitions. [2019-10-15 01:17:05,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:17:05,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2019-10-15 01:17:05,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:05,516 INFO L225 Difference]: With dead ends: 1519 [2019-10-15 01:17:05,517 INFO L226 Difference]: Without dead ends: 782 [2019-10-15 01:17:05,521 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-15 01:17:05,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-10-15 01:17:05,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-10-15 01:17:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1058 transitions. [2019-10-15 01:17:05,565 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1058 transitions. Word has length 196 [2019-10-15 01:17:05,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:05,566 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1058 transitions. [2019-10-15 01:17:05,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:17:05,566 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1058 transitions. [2019-10-15 01:17:05,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:17:05,571 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:05,572 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:05,572 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:05,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:05,573 INFO L82 PathProgramCache]: Analyzing trace with hash 818687885, now seen corresponding path program 1 times [2019-10-15 01:17:05,573 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:05,573 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517774314] [2019-10-15 01:17:05,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:05,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:05,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:05,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517774314] [2019-10-15 01:17:05,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:05,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:05,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106217592] [2019-10-15 01:17:05,837 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:05,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:05,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:05,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:05,838 INFO L87 Difference]: Start difference. First operand 782 states and 1058 transitions. Second operand 3 states. [2019-10-15 01:17:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:05,983 INFO L93 Difference]: Finished difference Result 2222 states and 3067 transitions. [2019-10-15 01:17:05,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:05,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2019-10-15 01:17:05,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:06,005 INFO L225 Difference]: With dead ends: 2222 [2019-10-15 01:17:06,005 INFO L226 Difference]: Without dead ends: 1485 [2019-10-15 01:17:06,012 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 01:17:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2019-10-15 01:17:06,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1482. [2019-10-15 01:17:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1482 states. [2019-10-15 01:17:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 2031 transitions. [2019-10-15 01:17:06,138 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 2031 transitions. Word has length 197 [2019-10-15 01:17:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:06,139 INFO L462 AbstractCegarLoop]: Abstraction has 1482 states and 2031 transitions. [2019-10-15 01:17:06,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 2031 transitions. [2019-10-15 01:17:06,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:17:06,150 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:06,151 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:06,151 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:06,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1701488253, now seen corresponding path program 1 times [2019-10-15 01:17:06,152 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:06,152 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978322886] [2019-10-15 01:17:06,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,152 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:06,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978322886] [2019-10-15 01:17:06,390 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:06,390 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:06,390 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703223178] [2019-10-15 01:17:06,391 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:06,391 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:06,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:06,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:06,392 INFO L87 Difference]: Start difference. First operand 1482 states and 2031 transitions. Second operand 3 states. [2019-10-15 01:17:06,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:06,528 INFO L93 Difference]: Finished difference Result 1485 states and 2033 transitions. [2019-10-15 01:17:06,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:06,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-15 01:17:06,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:06,534 INFO L225 Difference]: With dead ends: 1485 [2019-10-15 01:17:06,534 INFO L226 Difference]: Without dead ends: 783 [2019-10-15 01:17:06,537 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 01:17:06,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-10-15 01:17:06,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2019-10-15 01:17:06,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-10-15 01:17:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1052 transitions. [2019-10-15 01:17:06,569 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1052 transitions. Word has length 198 [2019-10-15 01:17:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:06,570 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1052 transitions. [2019-10-15 01:17:06,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1052 transitions. [2019-10-15 01:17:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:17:06,575 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:06,576 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:06,576 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:06,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:06,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1151446893, now seen corresponding path program 1 times [2019-10-15 01:17:06,577 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:06,577 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788829336] [2019-10-15 01:17:06,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,577 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:06,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:06,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-15 01:17:06,797 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788829336] [2019-10-15 01:17:06,798 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:06,798 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:17:06,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041335822] [2019-10-15 01:17:06,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:17:06,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:06,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:17:06,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:06,800 INFO L87 Difference]: Start difference. First operand 783 states and 1052 transitions. Second operand 4 states. [2019-10-15 01:17:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:07,551 INFO L93 Difference]: Finished difference Result 1503 states and 2028 transitions. [2019-10-15 01:17:07,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:17:07,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 212 [2019-10-15 01:17:07,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:07,559 INFO L225 Difference]: With dead ends: 1503 [2019-10-15 01:17:07,560 INFO L226 Difference]: Without dead ends: 789 [2019-10-15 01:17:07,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-15 01:17:07,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 783. [2019-10-15 01:17:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2019-10-15 01:17:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1037 transitions. [2019-10-15 01:17:07,602 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1037 transitions. Word has length 212 [2019-10-15 01:17:07,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:07,602 INFO L462 AbstractCegarLoop]: Abstraction has 783 states and 1037 transitions. [2019-10-15 01:17:07,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:17:07,603 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1037 transitions. [2019-10-15 01:17:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:17:07,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:07,608 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:07,608 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:07,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:07,609 INFO L82 PathProgramCache]: Analyzing trace with hash 881915616, now seen corresponding path program 1 times [2019-10-15 01:17:07,609 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:07,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272219206] [2019-10-15 01:17:07,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:17:07,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272219206] [2019-10-15 01:17:07,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:07,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:07,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433943801] [2019-10-15 01:17:07,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:07,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:07,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:07,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:07,880 INFO L87 Difference]: Start difference. First operand 783 states and 1037 transitions. Second operand 3 states. [2019-10-15 01:17:07,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:07,941 INFO L93 Difference]: Finished difference Result 1213 states and 1589 transitions. [2019-10-15 01:17:07,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:07,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-15 01:17:07,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:07,950 INFO L225 Difference]: With dead ends: 1213 [2019-10-15 01:17:07,950 INFO L226 Difference]: Without dead ends: 786 [2019-10-15 01:17:07,952 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 01:17:07,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2019-10-15 01:17:07,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 785. [2019-10-15 01:17:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-15 01:17:07,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1039 transitions. [2019-10-15 01:17:07,989 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1039 transitions. Word has length 239 [2019-10-15 01:17:07,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:07,991 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1039 transitions. [2019-10-15 01:17:07,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:07,992 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1039 transitions. [2019-10-15 01:17:07,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-15 01:17:07,997 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:07,997 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:07,997 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:07,998 INFO L82 PathProgramCache]: Analyzing trace with hash -159986652, now seen corresponding path program 1 times [2019-10-15 01:17:07,998 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:07,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965178416] [2019-10-15 01:17:07,998 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,999 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:07,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-15 01:17:08,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965178416] [2019-10-15 01:17:08,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,194 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:08,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610180163] [2019-10-15 01:17:08,195 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:08,196 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:08,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:08,197 INFO L87 Difference]: Start difference. First operand 785 states and 1039 transitions. Second operand 3 states. [2019-10-15 01:17:08,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,252 INFO L93 Difference]: Finished difference Result 1502 states and 2030 transitions. [2019-10-15 01:17:08,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:08,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-15 01:17:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,262 INFO L225 Difference]: With dead ends: 1502 [2019-10-15 01:17:08,263 INFO L226 Difference]: Without dead ends: 840 [2019-10-15 01:17:08,265 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 01:17:08,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2019-10-15 01:17:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 839. [2019-10-15 01:17:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-10-15 01:17:08,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1127 transitions. [2019-10-15 01:17:08,317 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1127 transitions. Word has length 247 [2019-10-15 01:17:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,318 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1127 transitions. [2019-10-15 01:17:08,318 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1127 transitions. [2019-10-15 01:17:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 01:17:08,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,324 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:08,325 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1666613841, now seen corresponding path program 1 times [2019-10-15 01:17:08,326 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336628770] [2019-10-15 01:17:08,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:17:08,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336628770] [2019-10-15 01:17:08,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:17:08,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701955240] [2019-10-15 01:17:08,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:17:08,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:17:08,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:17:08,681 INFO L87 Difference]: Start difference. First operand 839 states and 1127 transitions. Second operand 9 states. [2019-10-15 01:17:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,971 INFO L93 Difference]: Finished difference Result 846 states and 1136 transitions. [2019-10-15 01:17:08,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:17:08,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 248 [2019-10-15 01:17:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,982 INFO L225 Difference]: With dead ends: 846 [2019-10-15 01:17:08,982 INFO L226 Difference]: Without dead ends: 843 [2019-10-15 01:17:08,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-10-15 01:17:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-15 01:17:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 843. [2019-10-15 01:17:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 843 states. [2019-10-15 01:17:09,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 843 states to 843 states and 1133 transitions. [2019-10-15 01:17:09,029 INFO L78 Accepts]: Start accepts. Automaton has 843 states and 1133 transitions. Word has length 248 [2019-10-15 01:17:09,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,032 INFO L462 AbstractCegarLoop]: Abstraction has 843 states and 1133 transitions. [2019-10-15 01:17:09,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:17:09,032 INFO L276 IsEmpty]: Start isEmpty. Operand 843 states and 1133 transitions. [2019-10-15 01:17:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-15 01:17:09,037 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,038 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:09,038 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,039 INFO L82 PathProgramCache]: Analyzing trace with hash 316090334, now seen corresponding path program 1 times [2019-10-15 01:17:09,039 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,039 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403178365] [2019-10-15 01:17:09,039 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,040 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-15 01:17:09,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403178365] [2019-10-15 01:17:09,294 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,294 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:17:09,294 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370976503] [2019-10-15 01:17:09,295 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:17:09,296 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:17:09,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:09,296 INFO L87 Difference]: Start difference. First operand 843 states and 1133 transitions. Second operand 4 states. [2019-10-15 01:17:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,629 INFO L93 Difference]: Finished difference Result 2393 states and 3294 transitions. [2019-10-15 01:17:10,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:17:10,630 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 255 [2019-10-15 01:17:10,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,635 INFO L225 Difference]: With dead ends: 2393 [2019-10-15 01:17:10,636 INFO L226 Difference]: Without dead ends: 838 [2019-10-15 01:17:10,640 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:17:10,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-10-15 01:17:10,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2019-10-15 01:17:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2019-10-15 01:17:10,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1117 transitions. [2019-10-15 01:17:10,682 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1117 transitions. Word has length 255 [2019-10-15 01:17:10,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:10,682 INFO L462 AbstractCegarLoop]: Abstraction has 838 states and 1117 transitions. [2019-10-15 01:17:10,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:17:10,682 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1117 transitions. [2019-10-15 01:17:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-10-15 01:17:10,688 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:10,688 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:10,689 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:10,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:10,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2003629459, now seen corresponding path program 1 times [2019-10-15 01:17:10,689 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:10,690 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848268987] [2019-10-15 01:17:10,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,690 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:10,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-10-15 01:17:10,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848268987] [2019-10-15 01:17:10,837 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:10,837 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:17:10,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591884094] [2019-10-15 01:17:10,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:17:10,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:10,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:17:10,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:17:10,839 INFO L87 Difference]: Start difference. First operand 838 states and 1117 transitions. Second operand 3 states. [2019-10-15 01:17:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,956 INFO L93 Difference]: Finished difference Result 1625 states and 2191 transitions. [2019-10-15 01:17:10,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:17:10,956 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2019-10-15 01:17:10,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,962 INFO L225 Difference]: With dead ends: 1625 [2019-10-15 01:17:10,962 INFO L226 Difference]: Without dead ends: 837 [2019-10-15 01:17:10,970 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 01:17:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2019-10-15 01:17:11,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2019-10-15 01:17:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2019-10-15 01:17:11,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1113 transitions. [2019-10-15 01:17:11,025 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1113 transitions. Word has length 273 [2019-10-15 01:17:11,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,025 INFO L462 AbstractCegarLoop]: Abstraction has 837 states and 1113 transitions. [2019-10-15 01:17:11,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:17:11,025 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1113 transitions. [2019-10-15 01:17:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-10-15 01:17:11,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,029 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:11,030 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,030 INFO L82 PathProgramCache]: Analyzing trace with hash -953455789, now seen corresponding path program 1 times [2019-10-15 01:17:11,030 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851053909] [2019-10-15 01:17:11,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-15 01:17:11,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851053909] [2019-10-15 01:17:11,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 01:17:11,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257367550] [2019-10-15 01:17:11,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 01:17:11,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 01:17:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:17:11,626 INFO L87 Difference]: Start difference. First operand 837 states and 1113 transitions. Second operand 21 states. [2019-10-15 01:17:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:18,102 INFO L93 Difference]: Finished difference Result 2887 states and 3928 transitions. [2019-10-15 01:17:18,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2019-10-15 01:17:18,103 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 283 [2019-10-15 01:17:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:18,119 INFO L225 Difference]: With dead ends: 2887 [2019-10-15 01:17:18,119 INFO L226 Difference]: Without dead ends: 2478 [2019-10-15 01:17:18,123 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1067 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=505, Invalid=3785, Unknown=0, NotChecked=0, Total=4290 [2019-10-15 01:17:18,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2478 states. [2019-10-15 01:17:18,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2478 to 2441. [2019-10-15 01:17:18,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2441 states. [2019-10-15 01:17:18,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 3317 transitions. [2019-10-15 01:17:18,240 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 3317 transitions. Word has length 283 [2019-10-15 01:17:18,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:18,240 INFO L462 AbstractCegarLoop]: Abstraction has 2441 states and 3317 transitions. [2019-10-15 01:17:18,241 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 01:17:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 3317 transitions. [2019-10-15 01:17:18,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 01:17:18,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:18,248 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:18,249 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:18,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:18,249 INFO L82 PathProgramCache]: Analyzing trace with hash 782051777, now seen corresponding path program 1 times [2019-10-15 01:17:18,249 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:18,250 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046572248] [2019-10-15 01:17:18,250 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:18,250 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:18,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:18,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-15 01:17:18,620 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046572248] [2019-10-15 01:17:18,620 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:18,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 01:17:18,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947757091] [2019-10-15 01:17:18,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 01:17:18,622 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:18,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 01:17:18,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:17:18,622 INFO L87 Difference]: Start difference. First operand 2441 states and 3317 transitions. Second operand 17 states. [2019-10-15 01:17:19,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:19,311 INFO L93 Difference]: Finished difference Result 4280 states and 5786 transitions. [2019-10-15 01:17:19,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:17:19,312 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 284 [2019-10-15 01:17:19,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:19,330 INFO L225 Difference]: With dead ends: 4280 [2019-10-15 01:17:19,330 INFO L226 Difference]: Without dead ends: 2555 [2019-10-15 01:17:19,337 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:17:19,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2555 states. [2019-10-15 01:17:19,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2555 to 2555. [2019-10-15 01:17:19,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2555 states. [2019-10-15 01:17:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3475 transitions. [2019-10-15 01:17:19,520 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3475 transitions. Word has length 284 [2019-10-15 01:17:19,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,521 INFO L462 AbstractCegarLoop]: Abstraction has 2555 states and 3475 transitions. [2019-10-15 01:17:19,521 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 01:17:19,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3475 transitions. [2019-10-15 01:17:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2019-10-15 01:17:19,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,531 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:19,532 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1136538605, now seen corresponding path program 1 times [2019-10-15 01:17:19,533 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856240850] [2019-10-15 01:17:19,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-15 01:17:19,998 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856240850] [2019-10-15 01:17:19,998 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:19,998 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 01:17:19,998 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614859991] [2019-10-15 01:17:19,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 01:17:19,999 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 01:17:19,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:17:20,000 INFO L87 Difference]: Start difference. First operand 2555 states and 3475 transitions. Second operand 17 states. [2019-10-15 01:17:24,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:24,650 INFO L93 Difference]: Finished difference Result 4417 states and 6017 transitions. [2019-10-15 01:17:24,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-10-15 01:17:24,650 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 293 [2019-10-15 01:17:24,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:24,667 INFO L225 Difference]: With dead ends: 4417 [2019-10-15 01:17:24,667 INFO L226 Difference]: Without dead ends: 2687 [2019-10-15 01:17:24,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=273, Invalid=2697, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:17:24,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2687 states. [2019-10-15 01:17:24,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2687 to 2650. [2019-10-15 01:17:24,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2019-10-15 01:17:24,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3625 transitions. [2019-10-15 01:17:24,827 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3625 transitions. Word has length 293 [2019-10-15 01:17:24,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:24,828 INFO L462 AbstractCegarLoop]: Abstraction has 2650 states and 3625 transitions. [2019-10-15 01:17:24,828 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 01:17:24,828 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3625 transitions. [2019-10-15 01:17:24,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 01:17:24,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:24,837 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:24,837 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:24,837 INFO L82 PathProgramCache]: Analyzing trace with hash 47490106, now seen corresponding path program 1 times [2019-10-15 01:17:24,838 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:24,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982770837] [2019-10-15 01:17:24,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:24,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:24,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2019-10-15 01:17:25,365 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982770837] [2019-10-15 01:17:25,365 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:25,366 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-15 01:17:25,366 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154417431] [2019-10-15 01:17:25,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 01:17:25,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:25,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 01:17:25,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:17:25,367 INFO L87 Difference]: Start difference. First operand 2650 states and 3625 transitions. Second operand 22 states. [2019-10-15 01:17:26,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:26,127 INFO L93 Difference]: Finished difference Result 4545 states and 6164 transitions. [2019-10-15 01:17:26,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:17:26,127 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 284 [2019-10-15 01:17:26,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:26,142 INFO L225 Difference]: With dead ends: 4545 [2019-10-15 01:17:26,142 INFO L226 Difference]: Without dead ends: 2697 [2019-10-15 01:17:26,149 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:17:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2019-10-15 01:17:26,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2695. [2019-10-15 01:17:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2695 states. [2019-10-15 01:17:26,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 3672 transitions. [2019-10-15 01:17:26,289 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 3672 transitions. Word has length 284 [2019-10-15 01:17:26,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:26,290 INFO L462 AbstractCegarLoop]: Abstraction has 2695 states and 3672 transitions. [2019-10-15 01:17:26,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 01:17:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 3672 transitions. [2019-10-15 01:17:26,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 01:17:26,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:26,298 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:26,298 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:26,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:26,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1061329622, now seen corresponding path program 1 times [2019-10-15 01:17:26,299 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:26,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636834827] [2019-10-15 01:17:26,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:26,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-15 01:17:26,520 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636834827] [2019-10-15 01:17:26,521 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:26,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:26,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257682549] [2019-10-15 01:17:26,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:26,523 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:26,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:26,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:26,524 INFO L87 Difference]: Start difference. First operand 2695 states and 3672 transitions. Second operand 5 states. [2019-10-15 01:17:28,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:28,132 INFO L93 Difference]: Finished difference Result 6823 states and 9447 transitions. [2019-10-15 01:17:28,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:28,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 284 [2019-10-15 01:17:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:28,184 INFO L225 Difference]: With dead ends: 6823 [2019-10-15 01:17:28,184 INFO L226 Difference]: Without dead ends: 5880 [2019-10-15 01:17:28,193 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 01:17:28,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5880 states. [2019-10-15 01:17:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5880 to 5862. [2019-10-15 01:17:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5862 states. [2019-10-15 01:17:28,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 8090 transitions. [2019-10-15 01:17:28,594 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 8090 transitions. Word has length 284 [2019-10-15 01:17:28,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:28,595 INFO L462 AbstractCegarLoop]: Abstraction has 5862 states and 8090 transitions. [2019-10-15 01:17:28,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 8090 transitions. [2019-10-15 01:17:28,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-10-15 01:17:28,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:28,607 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:28,607 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:28,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:28,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1563124105, now seen corresponding path program 1 times [2019-10-15 01:17:28,608 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:28,608 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214673115] [2019-10-15 01:17:28,608 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:28,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:28,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:28,865 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-10-15 01:17:28,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214673115] [2019-10-15 01:17:28,873 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:28,874 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:28,874 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435235311] [2019-10-15 01:17:28,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:28,875 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:28,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:28,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:28,876 INFO L87 Difference]: Start difference. First operand 5862 states and 8090 transitions. Second operand 7 states. [2019-10-15 01:17:31,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:31,984 INFO L93 Difference]: Finished difference Result 19873 states and 30769 transitions. [2019-10-15 01:17:31,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:31,985 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2019-10-15 01:17:31,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:32,070 INFO L225 Difference]: With dead ends: 19873 [2019-10-15 01:17:32,070 INFO L226 Difference]: Without dead ends: 15286 [2019-10-15 01:17:32,094 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:32,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15286 states.