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_spec9_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:18:34,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:18:34,535 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:18:34,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:18:34,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:18:34,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:18:34,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:18:34,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:18:34,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:18:34,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:18:34,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:18:34,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:18:34,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:18:34,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:18:34,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:18:34,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:18:34,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:18:34,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:18:34,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:18:34,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:18:34,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:18:34,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:18:34,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:18:34,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:18:34,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:18:34,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:18:34,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:18:34,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:18:34,577 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:18:34,578 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:18:34,578 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:18:34,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:18:34,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:18:34,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:18:34,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:18:34,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:18:34,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:18:34,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:18:34,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:18:34,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:18:34,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:18:34,585 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 01:18:34,606 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:18:34,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:18:34,608 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:18:34,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:18:34,609 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:18:34,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:18:34,609 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:18:34,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:18:34,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:18:34,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:18:34,611 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:18:34,611 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:18:34,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:18:34,611 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:18:34,612 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:18:34,612 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:18:34,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:18:34,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:18:34,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:18:34,613 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:18:34,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:18:34,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:18:34,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:18:34,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:18:34,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:18:34,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:18:34,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:18:34,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:18:34,615 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 01:18:34,911 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:18:34,923 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:18:34,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:18:34,927 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:18:34,928 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:18:34,928 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-15 01:18:34,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5504cc2fd/7dcfb0db95464ebfaf34fcb6585d0eda/FLAGb3a831e89 [2019-10-15 01:18:35,572 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:18:35,573 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-15 01:18:35,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5504cc2fd/7dcfb0db95464ebfaf34fcb6585d0eda/FLAGb3a831e89 [2019-10-15 01:18:35,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5504cc2fd/7dcfb0db95464ebfaf34fcb6585d0eda [2019-10-15 01:18:35,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:18:35,820 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:18:35,821 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:18:35,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:18:35,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:18:35,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:18:35" (1/1) ... [2019-10-15 01:18:35,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e12d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:35, skipping insertion in model container [2019-10-15 01:18:35,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:18:35" (1/1) ... [2019-10-15 01:18:35,835 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:18:35,910 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:18:36,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:18:36,901 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:18:37,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:18:37,215 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:18:37,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37 WrapperNode [2019-10-15 01:18:37,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:18:37,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:18:37,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:18:37,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:18:37,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (1/1) ... [2019-10-15 01:18:37,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:18:37,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:18:37,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:18:37,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:18:37,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (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 01:18:37,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:18:37,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:18:37,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:18:37,496 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:18:37,497 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:18:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:18:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:18:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:18:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:18:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:18:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:18:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:18:37,499 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:18:37,500 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:18:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:18:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:18:37,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:18:37,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:18:37,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-15 01:18:37,506 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-15 01:18:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-15 01:18:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:18:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:18:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-15 01:18:37,507 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-15 01:18:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-15 01:18:37,508 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-15 01:18:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-15 01:18:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-15 01:18:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-15 01:18:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-15 01:18:37,509 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:18:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:18:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:18:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:18:37,510 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:18:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:18:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:18:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:18:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-15 01:18:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-15 01:18:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:18:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-15 01:18:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-15 01:18:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:18:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-15 01:18:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-15 01:18:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:18:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:18:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:18:37,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:18:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:18:37,516 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:18:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:18:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:18:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:18:37,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:18:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:18:37,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:18:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:18:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:18:37,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:18:37,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:18:37,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:18:37,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:18:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:18:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 01:18:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 01:18:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:18:37,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:18:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:18:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:18:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-15 01:18:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-15 01:18:37,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-15 01:18:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-15 01:18:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-15 01:18:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-15 01:18:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:18:37,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:18:37,524 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:18:37,525 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:18:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:18:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:18:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:18:37,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:18:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:18:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:18:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:18:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:18:37,528 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:18:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:18:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:18:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:18:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:18:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:18:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:18:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:18:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:18:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:18:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:18:37,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:18:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:18:37,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:18:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:18:37,536 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:18:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:18:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:18:37,537 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:18:37,538 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:18:37,539 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:18:37,547 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:18:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:18:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:18:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:18:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:18:37,548 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:18:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:18:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:18:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:18:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:18:37,549 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:18:37,550 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:18:37,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:18:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:18:37,553 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:18:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:18:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-15 01:18:37,556 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-15 01:18:37,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:18:37,558 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:18:37,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:18:37,560 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:18:37,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:18:37,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:18:37,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:18:37,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:18:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:18:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:18:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-15 01:18:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-15 01:18:37,568 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-15 01:18:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-15 01:18:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-15 01:18:37,569 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-15 01:18:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-15 01:18:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-15 01:18:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:18:37,572 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:18:37,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:18:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:18:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:18:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:18:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:18:37,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:18:39,995 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:18:39,995 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:18:39,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:18:39 BoogieIcfgContainer [2019-10-15 01:18:39,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:18:39,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:18:39,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:18:40,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:18:40,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:18:35" (1/3) ... [2019-10-15 01:18:40,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de357a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:18:40, skipping insertion in model container [2019-10-15 01:18:40,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:37" (2/3) ... [2019-10-15 01:18:40,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de357a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:18:40, skipping insertion in model container [2019-10-15 01:18:40,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:18:39" (3/3) ... [2019-10-15 01:18:40,005 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_productSimulator.cil.c [2019-10-15 01:18:40,016 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:18:40,027 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:18:40,038 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:18:40,068 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:18:40,069 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:18:40,069 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:18:40,069 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:18:40,069 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:18:40,069 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:18:40,069 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:18:40,069 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:18:40,103 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states. [2019-10-15 01:18:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-15 01:18:40,126 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:40,127 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] [2019-10-15 01:18:40,129 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:40,135 INFO L82 PathProgramCache]: Analyzing trace with hash 573423146, now seen corresponding path program 1 times [2019-10-15 01:18:40,145 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:40,146 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700369492] [2019-10-15 01:18:40,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:40,146 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:40,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:40,914 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 01:18:40,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700369492] [2019-10-15 01:18:40,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:40,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:18:40,917 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58394691] [2019-10-15 01:18:40,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:18:40,924 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:40,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:18:40,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:18:40,941 INFO L87 Difference]: Start difference. First operand 818 states. Second operand 6 states. [2019-10-15 01:18:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:41,168 INFO L93 Difference]: Finished difference Result 1554 states and 2145 transitions. [2019-10-15 01:18:41,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:18:41,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2019-10-15 01:18:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:41,195 INFO L225 Difference]: With dead ends: 1554 [2019-10-15 01:18:41,196 INFO L226 Difference]: Without dead ends: 789 [2019-10-15 01:18:41,204 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 01:18:41,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-15 01:18:41,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-15 01:18:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-15 01:18:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1073 transitions. [2019-10-15 01:18:41,320 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1073 transitions. Word has length 170 [2019-10-15 01:18:41,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:41,322 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1073 transitions. [2019-10-15 01:18:41,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:18:41,322 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1073 transitions. [2019-10-15 01:18:41,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:18:41,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:41,329 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] [2019-10-15 01:18:41,329 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:41,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:41,329 INFO L82 PathProgramCache]: Analyzing trace with hash 612736889, now seen corresponding path program 1 times [2019-10-15 01:18:41,330 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:41,330 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262169123] [2019-10-15 01:18:41,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:41,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:41,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:41,559 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 01:18:41,560 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262169123] [2019-10-15 01:18:41,560 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:41,560 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:18:41,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236180472] [2019-10-15 01:18:41,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:18:41,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:41,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:18:41,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:18:41,564 INFO L87 Difference]: Start difference. First operand 789 states and 1073 transitions. Second operand 4 states. [2019-10-15 01:18:42,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:42,395 INFO L93 Difference]: Finished difference Result 1541 states and 2131 transitions. [2019-10-15 01:18:42,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:18:42,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2019-10-15 01:18:42,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:42,408 INFO L225 Difference]: With dead ends: 1541 [2019-10-15 01:18:42,408 INFO L226 Difference]: Without dead ends: 788 [2019-10-15 01:18:42,411 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 01:18:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-15 01:18:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-15 01:18:42,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-15 01:18:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1063 transitions. [2019-10-15 01:18:42,484 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1063 transitions. Word has length 176 [2019-10-15 01:18:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:42,486 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1063 transitions. [2019-10-15 01:18:42,486 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:18:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1063 transitions. [2019-10-15 01:18:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:18:42,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:42,496 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] [2019-10-15 01:18:42,496 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:42,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:42,497 INFO L82 PathProgramCache]: Analyzing trace with hash -928366809, now seen corresponding path program 1 times [2019-10-15 01:18:42,497 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:42,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198075280] [2019-10-15 01:18:42,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:42,736 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 01:18:42,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198075280] [2019-10-15 01:18:42,737 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:42,737 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:42,737 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030647252] [2019-10-15 01:18:42,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:42,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:42,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:42,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:42,740 INFO L87 Difference]: Start difference. First operand 788 states and 1063 transitions. Second operand 3 states. [2019-10-15 01:18:42,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:42,890 INFO L93 Difference]: Finished difference Result 1534 states and 2090 transitions. [2019-10-15 01:18:42,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:42,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-15 01:18:42,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:42,895 INFO L225 Difference]: With dead ends: 1534 [2019-10-15 01:18:42,896 INFO L226 Difference]: Without dead ends: 787 [2019-10-15 01:18:42,898 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 01:18:42,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-15 01:18:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-15 01:18:42,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-15 01:18:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1059 transitions. [2019-10-15 01:18:42,930 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1059 transitions. Word has length 194 [2019-10-15 01:18:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:42,930 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1059 transitions. [2019-10-15 01:18:42,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1059 transitions. [2019-10-15 01:18:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:18:42,934 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:42,934 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] [2019-10-15 01:18:42,935 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:42,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:42,935 INFO L82 PathProgramCache]: Analyzing trace with hash -848638024, now seen corresponding path program 1 times [2019-10-15 01:18:42,935 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:42,936 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86315894] [2019-10-15 01:18:42,936 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,936 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,936 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:43,100 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 01:18:43,100 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86315894] [2019-10-15 01:18:43,100 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:43,101 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:18:43,101 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515171914] [2019-10-15 01:18:43,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:18:43,102 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:43,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:18:43,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:18:43,103 INFO L87 Difference]: Start difference. First operand 787 states and 1059 transitions. Second operand 4 states. [2019-10-15 01:18:43,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:43,885 INFO L93 Difference]: Finished difference Result 1505 states and 2036 transitions. [2019-10-15 01:18:43,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:18:43,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-15 01:18:43,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:43,892 INFO L225 Difference]: With dead ends: 1505 [2019-10-15 01:18:43,892 INFO L226 Difference]: Without dead ends: 784 [2019-10-15 01:18:43,894 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 01:18:43,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-15 01:18:43,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2019-10-15 01:18:43,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-15 01:18:43,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1042 transitions. [2019-10-15 01:18:43,929 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1042 transitions. Word has length 195 [2019-10-15 01:18:43,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:43,932 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1042 transitions. [2019-10-15 01:18:43,932 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:18:43,932 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1042 transitions. [2019-10-15 01:18:43,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-15 01:18:43,936 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:43,937 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] [2019-10-15 01:18:43,937 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:43,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:43,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1998841435, now seen corresponding path program 1 times [2019-10-15 01:18:43,938 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:43,938 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753782966] [2019-10-15 01:18:43,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:43,938 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:43,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:44,131 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 01:18:44,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753782966] [2019-10-15 01:18:44,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:44,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:44,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397727724] [2019-10-15 01:18:44,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:44,133 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:44,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:44,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:44,134 INFO L87 Difference]: Start difference. First operand 784 states and 1042 transitions. Second operand 3 states. [2019-10-15 01:18:44,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:44,219 INFO L93 Difference]: Finished difference Result 1221 states and 1603 transitions. [2019-10-15 01:18:44,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:44,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-15 01:18:44,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:44,226 INFO L225 Difference]: With dead ends: 1221 [2019-10-15 01:18:44,226 INFO L226 Difference]: Without dead ends: 787 [2019-10-15 01:18:44,229 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 01:18:44,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-15 01:18:44,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 786. [2019-10-15 01:18:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-15 01:18:44,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1044 transitions. [2019-10-15 01:18:44,269 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1044 transitions. Word has length 222 [2019-10-15 01:18:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:44,270 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1044 transitions. [2019-10-15 01:18:44,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1044 transitions. [2019-10-15 01:18:44,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-15 01:18:44,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:44,275 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] [2019-10-15 01:18:44,275 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:44,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:44,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1395334039, now seen corresponding path program 1 times [2019-10-15 01:18:44,276 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:44,276 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640823031] [2019-10-15 01:18:44,276 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:44,463 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 01:18:44,464 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640823031] [2019-10-15 01:18:44,465 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:44,465 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:44,465 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376507583] [2019-10-15 01:18:44,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:44,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:44,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:44,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:44,467 INFO L87 Difference]: Start difference. First operand 786 states and 1044 transitions. Second operand 3 states. [2019-10-15 01:18:44,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:44,535 INFO L93 Difference]: Finished difference Result 1510 states and 2044 transitions. [2019-10-15 01:18:44,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:44,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-15 01:18:44,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:44,541 INFO L225 Difference]: With dead ends: 1510 [2019-10-15 01:18:44,541 INFO L226 Difference]: Without dead ends: 841 [2019-10-15 01:18:44,544 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 01:18:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-15 01:18:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2019-10-15 01:18:44,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2019-10-15 01:18:44,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1132 transitions. [2019-10-15 01:18:44,589 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1132 transitions. Word has length 230 [2019-10-15 01:18:44,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:44,590 INFO L462 AbstractCegarLoop]: Abstraction has 840 states and 1132 transitions. [2019-10-15 01:18:44,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1132 transitions. [2019-10-15 01:18:44,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-15 01:18:44,594 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:44,595 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] [2019-10-15 01:18:44,595 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:44,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:44,595 INFO L82 PathProgramCache]: Analyzing trace with hash -424313440, now seen corresponding path program 1 times [2019-10-15 01:18:44,596 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:44,596 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232835733] [2019-10-15 01:18:44,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,596 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:44,918 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 01:18:44,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232835733] [2019-10-15 01:18:44,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:44,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:44,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274322984] [2019-10-15 01:18:44,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:44,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:44,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:44,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:44,922 INFO L87 Difference]: Start difference. First operand 840 states and 1132 transitions. Second operand 3 states. [2019-10-15 01:18:44,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:44,967 INFO L93 Difference]: Finished difference Result 1413 states and 1904 transitions. [2019-10-15 01:18:44,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:44,968 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-15 01:18:44,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:44,982 INFO L225 Difference]: With dead ends: 1413 [2019-10-15 01:18:44,982 INFO L226 Difference]: Without dead ends: 992 [2019-10-15 01:18:44,984 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 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 01:18:44,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-15 01:18:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 991. [2019-10-15 01:18:45,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2019-10-15 01:18:45,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1343 transitions. [2019-10-15 01:18:45,036 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1343 transitions. Word has length 231 [2019-10-15 01:18:45,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:45,038 INFO L462 AbstractCegarLoop]: Abstraction has 991 states and 1343 transitions. [2019-10-15 01:18:45,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:45,038 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1343 transitions. [2019-10-15 01:18:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2019-10-15 01:18:45,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:45,047 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:45,047 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:45,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:45,048 INFO L82 PathProgramCache]: Analyzing trace with hash 417129015, now seen corresponding path program 1 times [2019-10-15 01:18:45,048 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:45,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017922486] [2019-10-15 01:18:45,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:45,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:45,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-15 01:18:45,466 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017922486] [2019-10-15 01:18:45,466 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:45,466 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:18:45,466 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21042528] [2019-10-15 01:18:45,467 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:18:45,467 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:45,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:18:45,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:18:45,468 INFO L87 Difference]: Start difference. First operand 991 states and 1343 transitions. Second operand 6 states. [2019-10-15 01:18:46,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:46,224 INFO L93 Difference]: Finished difference Result 2407 states and 3264 transitions. [2019-10-15 01:18:46,224 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:18:46,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 378 [2019-10-15 01:18:46,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:46,243 INFO L225 Difference]: With dead ends: 2407 [2019-10-15 01:18:46,243 INFO L226 Difference]: Without dead ends: 1881 [2019-10-15 01:18:46,248 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:18:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2019-10-15 01:18:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1870. [2019-10-15 01:18:46,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2019-10-15 01:18:46,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2561 transitions. [2019-10-15 01:18:46,353 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2561 transitions. Word has length 378 [2019-10-15 01:18:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:46,353 INFO L462 AbstractCegarLoop]: Abstraction has 1870 states and 2561 transitions. [2019-10-15 01:18:46,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:18:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2561 transitions. [2019-10-15 01:18:46,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-10-15 01:18:46,368 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:46,369 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:46,369 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:46,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:46,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1849311616, now seen corresponding path program 1 times [2019-10-15 01:18:46,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:46,370 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102746739] [2019-10-15 01:18:46,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:46,370 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:46,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:46,939 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-15 01:18:46,939 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102746739] [2019-10-15 01:18:46,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:46,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:18:46,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058127484] [2019-10-15 01:18:46,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:18:46,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:46,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:18:46,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:18:46,944 INFO L87 Difference]: Start difference. First operand 1870 states and 2561 transitions. Second operand 13 states. [2019-10-15 01:18:47,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:47,540 INFO L93 Difference]: Finished difference Result 2973 states and 4015 transitions. [2019-10-15 01:18:47,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:18:47,541 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 379 [2019-10-15 01:18:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:47,552 INFO L225 Difference]: With dead ends: 2973 [2019-10-15 01:18:47,552 INFO L226 Difference]: Without dead ends: 1916 [2019-10-15 01:18:47,557 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:18:47,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2019-10-15 01:18:47,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1912. [2019-10-15 01:18:47,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-10-15 01:18:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2618 transitions. [2019-10-15 01:18:47,645 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2618 transitions. Word has length 379 [2019-10-15 01:18:47,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:47,645 INFO L462 AbstractCegarLoop]: Abstraction has 1912 states and 2618 transitions. [2019-10-15 01:18:47,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:18:47,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2618 transitions. [2019-10-15 01:18:47,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-15 01:18:47,658 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:47,658 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:47,658 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:47,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1019360707, now seen corresponding path program 1 times [2019-10-15 01:18:47,659 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:47,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998510292] [2019-10-15 01:18:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:47,660 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:47,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 01:18:47,903 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998510292] [2019-10-15 01:18:47,904 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:47,904 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:47,904 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538160561] [2019-10-15 01:18:47,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:47,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:47,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:47,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:47,906 INFO L87 Difference]: Start difference. First operand 1912 states and 2618 transitions. Second operand 3 states. [2019-10-15 01:18:48,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:48,087 INFO L93 Difference]: Finished difference Result 5430 states and 7564 transitions. [2019-10-15 01:18:48,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:48,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2019-10-15 01:18:48,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:48,109 INFO L225 Difference]: With dead ends: 5430 [2019-10-15 01:18:48,109 INFO L226 Difference]: Without dead ends: 3554 [2019-10-15 01:18:48,117 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 01:18:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2019-10-15 01:18:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3547. [2019-10-15 01:18:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2019-10-15 01:18:48,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4907 transitions. [2019-10-15 01:18:48,373 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4907 transitions. Word has length 392 [2019-10-15 01:18:48,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:48,374 INFO L462 AbstractCegarLoop]: Abstraction has 3547 states and 4907 transitions. [2019-10-15 01:18:48,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:48,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4907 transitions. [2019-10-15 01:18:48,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2019-10-15 01:18:48,395 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:48,395 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:48,396 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:48,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:48,396 INFO L82 PathProgramCache]: Analyzing trace with hash 898900797, now seen corresponding path program 1 times [2019-10-15 01:18:48,397 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:48,397 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892928461] [2019-10-15 01:18:48,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:48,398 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:48,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:48,710 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-15 01:18:48,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892928461] [2019-10-15 01:18:48,711 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:48,711 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:48,711 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445224239] [2019-10-15 01:18:48,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:48,712 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:48,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:48,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:48,713 INFO L87 Difference]: Start difference. First operand 3547 states and 4907 transitions. Second operand 3 states. [2019-10-15 01:18:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:48,994 INFO L93 Difference]: Finished difference Result 8601 states and 12117 transitions. [2019-10-15 01:18:48,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:48,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2019-10-15 01:18:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:49,022 INFO L225 Difference]: With dead ends: 8601 [2019-10-15 01:18:49,023 INFO L226 Difference]: Without dead ends: 5102 [2019-10-15 01:18:49,037 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 01:18:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2019-10-15 01:18:49,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5099. [2019-10-15 01:18:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-10-15 01:18:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7066 transitions. [2019-10-15 01:18:49,315 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7066 transitions. Word has length 394 [2019-10-15 01:18:49,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:49,315 INFO L462 AbstractCegarLoop]: Abstraction has 5099 states and 7066 transitions. [2019-10-15 01:18:49,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7066 transitions. [2019-10-15 01:18:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2019-10-15 01:18:49,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:49,337 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2019-10-15 01:18:49,337 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:49,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1508164640, now seen corresponding path program 1 times [2019-10-15 01:18:49,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:49,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671928557] [2019-10-15 01:18:49,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:49,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:49,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:49,837 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:18:49,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671928557] [2019-10-15 01:18:49,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017117002] [2019-10-15 01:18:49,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:50,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 4230 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:18:50,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:18:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-15 01:18:51,157 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:52,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:52,284 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:18:52,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:52,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:52,699 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-15 01:18:52,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:18:52,700 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24, 11] total 41 [2019-10-15 01:18:52,700 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425474442] [2019-10-15 01:18:52,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:18:52,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:52,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:18:52,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1531, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:18:52,702 INFO L87 Difference]: Start difference. First operand 5099 states and 7066 transitions. Second operand 11 states. [2019-10-15 01:18:55,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:55,275 INFO L93 Difference]: Finished difference Result 10090 states and 14023 transitions. [2019-10-15 01:18:55,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:18:55,276 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 362 [2019-10-15 01:18:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:55,304 INFO L225 Difference]: With dead ends: 10090 [2019-10-15 01:18:55,305 INFO L226 Difference]: Without dead ends: 5141 [2019-10-15 01:18:55,319 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 708 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=137, Invalid=1843, Unknown=0, NotChecked=0, Total=1980 [2019-10-15 01:18:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2019-10-15 01:18:55,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5141. [2019-10-15 01:18:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2019-10-15 01:18:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 7120 transitions. [2019-10-15 01:18:55,582 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 7120 transitions. Word has length 362 [2019-10-15 01:18:55,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:55,583 INFO L462 AbstractCegarLoop]: Abstraction has 5141 states and 7120 transitions. [2019-10-15 01:18:55,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:18:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 7120 transitions. [2019-10-15 01:18:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-15 01:18:55,601 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:55,601 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1] [2019-10-15 01:18:55,818 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:55,820 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:55,820 INFO L82 PathProgramCache]: Analyzing trace with hash 421113011, now seen corresponding path program 1 times [2019-10-15 01:18:55,821 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:55,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392743519] [2019-10-15 01:18:55,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:55,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:55,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:56,446 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:18:56,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392743519] [2019-10-15 01:18:56,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980835495] [2019-10-15 01:18:56,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:57,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:18:57,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:18:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-15 01:18:57,469 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:58,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:58,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:58,552 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-15 01:18:58,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:18:58,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [24, 9] total 37 [2019-10-15 01:18:58,694 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724505870] [2019-10-15 01:18:58,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:18:58,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:58,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:18:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1237, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 01:18:58,695 INFO L87 Difference]: Start difference. First operand 5141 states and 7120 transitions. Second operand 9 states. [2019-10-15 01:19:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:19:01,259 INFO L93 Difference]: Finished difference Result 10099 states and 14050 transitions. [2019-10-15 01:19:01,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:19:01,260 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 363 [2019-10-15 01:19:01,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:19:01,300 INFO L225 Difference]: With dead ends: 10099 [2019-10-15 01:19:01,300 INFO L226 Difference]: Without dead ends: 5153 [2019-10-15 01:19:01,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 715 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:19:01,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2019-10-15 01:19:01,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2019-10-15 01:19:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2019-10-15 01:19:01,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7135 transitions. [2019-10-15 01:19:01,516 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7135 transitions. Word has length 363 [2019-10-15 01:19:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:19:01,517 INFO L462 AbstractCegarLoop]: Abstraction has 5153 states and 7135 transitions. [2019-10-15 01:19:01,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:19:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7135 transitions. [2019-10-15 01:19:01,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-15 01:19:01,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:19:01,535 INFO L380 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2019-10-15 01:19:01,752 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:19:01,753 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:19:01,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:19:01,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1117327743, now seen corresponding path program 1 times [2019-10-15 01:19:01,754 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:19:01,754 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536066823] [2019-10-15 01:19:01,754 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:01,755 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:19:01,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:19:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-15 01:19:02,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536066823] [2019-10-15 01:19:02,245 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583919092] [2019-10-15 01:19:02,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:19:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:19:03,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 4232 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:19:03,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:19:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2019-10-15 01:19:03,575 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:19:04,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:19:04,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:19:04,636 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:19:04,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:19:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-15 01:19:04,928 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:19:04,928 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [24] total 42 [2019-10-15 01:19:04,928 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140604001] [2019-10-15 01:19:04,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:19:04,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:04,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:19:04,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1602, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 01:19:04,931 INFO L87 Difference]: Start difference. First operand 5153 states and 7135 transitions. Second operand 20 states.