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-f4eb214f-m [2019-10-13 21:19:32,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:19:32,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:19:32,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:19:32,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:19:32,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:19:32,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:19:32,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:19:32,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:19:32,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:19:32,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:19:32,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:19:32,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:19:32,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:19:32,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:19:32,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:19:32,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:19:32,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:19:32,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:19:32,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:19:32,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:19:32,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:19:32,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:19:32,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:19:32,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:19:32,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:19:32,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:19:32,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:19:32,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:19:32,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:19:32,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:19:32,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:19:32,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:19:32,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:19:32,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:19:32,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:19:32,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:19:32,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:19:32,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:19:32,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:19:32,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:19:32,190 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:19:32,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:19:32,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:19:32,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:19:32,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:19:32,206 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:19:32,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:19:32,207 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:19:32,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:19:32,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:19:32,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:19:32,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:19:32,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:19:32,208 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:19:32,208 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:19:32,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:19:32,208 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:19:32,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:19:32,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:19:32,209 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:19:32,209 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:19:32,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:19:32,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:19:32,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:19:32,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:19:32,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:19:32,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:19:32,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:19:32,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:19:32,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:19:32,566 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:19:32,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:19:32,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:19:32,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:19:32,588 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:19:32,588 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-13 21:19:32,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d65236c/3702e192af0c4e48906bb3da8dc653b3/FLAG6d90f718a [2019-10-13 21:19:33,306 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:19:33,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_productSimulator.cil.c [2019-10-13 21:19:33,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d65236c/3702e192af0c4e48906bb3da8dc653b3/FLAG6d90f718a [2019-10-13 21:19:33,524 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4d65236c/3702e192af0c4e48906bb3da8dc653b3 [2019-10-13 21:19:33,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:19:33,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:19:33,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:19:33,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:19:33,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:19:33,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:19:33" (1/1) ... [2019-10-13 21:19:33,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f785cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:33, skipping insertion in model container [2019-10-13 21:19:33,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:19:33" (1/1) ... [2019-10-13 21:19:33,554 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:19:33,646 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:19:34,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:19:34,451 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:19:34,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:19:34,829 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:19:34,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34 WrapperNode [2019-10-13 21:19:34,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:19:34,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:19:34,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:19:34,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:19:34,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:34,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:34,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:34,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:34,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:34,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:35,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... [2019-10-13 21:19:35,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:19:35,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:19:35,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:19:35,032 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:19:35,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:19:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:19:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:19:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:19:35,105 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:19:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:19:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:19:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:19:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:19:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:19:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:19:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:19:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:19:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:19:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:19:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:19:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:19:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:19:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:19:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:19:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:19:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:19:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:19:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:19:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:19:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:19:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:19:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-10-13 21:19:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-10-13 21:19:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-10-13 21:19:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-10-13 21:19:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-10-13 21:19:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-10-13 21:19:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:19:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-10-13 21:19:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:19:35,114 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:19:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:19:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:19:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:19:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:19:35,115 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:19:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-10-13 21:19:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-10-13 21:19:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:19:35,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:19:35,144 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:19:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:19:35,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:19:35,147 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-10-13 21:19:35,148 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:19:35,149 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:19:35,150 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:19:35,151 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:19:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:19:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:19:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:19:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:19:35,152 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:19:35,153 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:19:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:19:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:19:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:19:35,154 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:19:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:19:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:19:35,154 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:19:35,155 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:19:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:19:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:19:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:19:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:19:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:19:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:19:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:19:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:19:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:19:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:19:35,159 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:19:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:19:35,161 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:19:35,162 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:19:35,163 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:19:35,164 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-10-13 21:19:35,165 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-10-13 21:19:35,166 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:19:35,167 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:19:35,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:19:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:19:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-10-13 21:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-10-13 21:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-10-13 21:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-10-13 21:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-10-13 21:19:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:19:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:19:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:19:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-10-13 21:19:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:19:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:19:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:19:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:19:37,716 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:19:37,716 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:19:37,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:19:37 BoogieIcfgContainer [2019-10-13 21:19:37,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:19:37,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:19:37,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:19:37,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:19:37,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:19:33" (1/3) ... [2019-10-13 21:19:37,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@896a0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:19:37, skipping insertion in model container [2019-10-13 21:19:37,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:19:34" (2/3) ... [2019-10-13 21:19:37,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@896a0d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:19:37, skipping insertion in model container [2019-10-13 21:19:37,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:19:37" (3/3) ... [2019-10-13 21:19:37,726 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_productSimulator.cil.c [2019-10-13 21:19:37,737 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:19:37,747 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:19:37,760 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:19:37,804 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:19:37,805 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:19:37,805 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:19:37,805 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:19:37,805 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:19:37,805 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:19:37,805 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:19:37,805 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:19:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states. [2019-10-13 21:19:37,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 21:19:37,891 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:37,892 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] [2019-10-13 21:19:37,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:37,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:37,901 INFO L82 PathProgramCache]: Analyzing trace with hash 573423146, now seen corresponding path program 1 times [2019-10-13 21:19:37,912 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:37,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197927762] [2019-10-13 21:19:37,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:37,913 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:37,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:19:38,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197927762] [2019-10-13 21:19:38,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:38,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:19:38,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295411419] [2019-10-13 21:19:38,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:19:38,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:38,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:19:38,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:19:38,658 INFO L87 Difference]: Start difference. First operand 818 states. Second operand 6 states. [2019-10-13 21:19:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:38,878 INFO L93 Difference]: Finished difference Result 1554 states and 2145 transitions. [2019-10-13 21:19:38,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 21:19:38,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2019-10-13 21:19:38,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:38,921 INFO L225 Difference]: With dead ends: 1554 [2019-10-13 21:19:38,922 INFO L226 Difference]: Without dead ends: 789 [2019-10-13 21:19:38,934 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 [2019-10-13 21:19:38,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2019-10-13 21:19:39,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2019-10-13 21:19:39,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 21:19:39,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1073 transitions. [2019-10-13 21:19:39,109 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1073 transitions. Word has length 170 [2019-10-13 21:19:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:39,115 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1073 transitions. [2019-10-13 21:19:39,115 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:19:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1073 transitions. [2019-10-13 21:19:39,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-13 21:19:39,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:39,128 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] [2019-10-13 21:19:39,128 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:39,129 INFO L82 PathProgramCache]: Analyzing trace with hash 612736889, now seen corresponding path program 1 times [2019-10-13 21:19:39,129 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:39,129 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323949192] [2019-10-13 21:19:39,129 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:39,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:39,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:39,346 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:19:39,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323949192] [2019-10-13 21:19:39,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:39,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:19:39,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547628277] [2019-10-13 21:19:39,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:19:39,350 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:39,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:19:39,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:19:39,350 INFO L87 Difference]: Start difference. First operand 789 states and 1073 transitions. Second operand 4 states. [2019-10-13 21:19:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:40,275 INFO L93 Difference]: Finished difference Result 1541 states and 2131 transitions. [2019-10-13 21:19:40,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:19:40,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2019-10-13 21:19:40,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:40,282 INFO L225 Difference]: With dead ends: 1541 [2019-10-13 21:19:40,282 INFO L226 Difference]: Without dead ends: 788 [2019-10-13 21:19:40,286 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 [2019-10-13 21:19:40,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-10-13 21:19:40,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-10-13 21:19:40,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-10-13 21:19:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1063 transitions. [2019-10-13 21:19:40,329 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1063 transitions. Word has length 176 [2019-10-13 21:19:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:40,334 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1063 transitions. [2019-10-13 21:19:40,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:19:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1063 transitions. [2019-10-13 21:19:40,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:19:40,342 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:40,342 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] [2019-10-13 21:19:40,343 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:40,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:40,346 INFO L82 PathProgramCache]: Analyzing trace with hash -928366809, now seen corresponding path program 1 times [2019-10-13 21:19:40,347 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:40,347 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224515993] [2019-10-13 21:19:40,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:19:40,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224515993] [2019-10-13 21:19:40,621 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:40,621 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:40,621 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094533130] [2019-10-13 21:19:40,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:40,623 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:40,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:40,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:40,623 INFO L87 Difference]: Start difference. First operand 788 states and 1063 transitions. Second operand 3 states. [2019-10-13 21:19:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:40,840 INFO L93 Difference]: Finished difference Result 1534 states and 2090 transitions. [2019-10-13 21:19:40,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:40,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-13 21:19:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:40,849 INFO L225 Difference]: With dead ends: 1534 [2019-10-13 21:19:40,849 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:19:40,853 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:19:40,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2019-10-13 21:19:40,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 787 states. [2019-10-13 21:19:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1059 transitions. [2019-10-13 21:19:40,902 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1059 transitions. Word has length 194 [2019-10-13 21:19:40,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:40,903 INFO L462 AbstractCegarLoop]: Abstraction has 787 states and 1059 transitions. [2019-10-13 21:19:40,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:40,903 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1059 transitions. [2019-10-13 21:19:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:19:40,909 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:40,909 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] [2019-10-13 21:19:40,910 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:40,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:40,910 INFO L82 PathProgramCache]: Analyzing trace with hash -848638024, now seen corresponding path program 1 times [2019-10-13 21:19:40,911 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:40,911 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559585179] [2019-10-13 21:19:40,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:40,912 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:41,251 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-10-13 21:19:41,252 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559585179] [2019-10-13 21:19:41,252 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:41,252 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 21:19:41,252 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823476230] [2019-10-13 21:19:41,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 21:19:41,253 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:41,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 21:19:41,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 21:19:41,254 INFO L87 Difference]: Start difference. First operand 787 states and 1059 transitions. Second operand 4 states. [2019-10-13 21:19:42,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:42,060 INFO L93 Difference]: Finished difference Result 1505 states and 2036 transitions. [2019-10-13 21:19:42,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 21:19:42,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-13 21:19:42,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:42,067 INFO L225 Difference]: With dead ends: 1505 [2019-10-13 21:19:42,067 INFO L226 Difference]: Without dead ends: 784 [2019-10-13 21:19:42,070 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 [2019-10-13 21:19:42,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2019-10-13 21:19:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2019-10-13 21:19:42,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-13 21:19:42,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1042 transitions. [2019-10-13 21:19:42,125 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1042 transitions. Word has length 195 [2019-10-13 21:19:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:42,127 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1042 transitions. [2019-10-13 21:19:42,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 21:19:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1042 transitions. [2019-10-13 21:19:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2019-10-13 21:19:42,133 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:42,133 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] [2019-10-13 21:19:42,134 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:42,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:42,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1998841435, now seen corresponding path program 1 times [2019-10-13 21:19:42,135 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:42,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050050093] [2019-10-13 21:19:42,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:42,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:19:42,452 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050050093] [2019-10-13 21:19:42,452 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:42,453 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:42,453 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417934595] [2019-10-13 21:19:42,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:42,455 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:42,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:42,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:42,456 INFO L87 Difference]: Start difference. First operand 784 states and 1042 transitions. Second operand 3 states. [2019-10-13 21:19:42,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:42,542 INFO L93 Difference]: Finished difference Result 1221 states and 1603 transitions. [2019-10-13 21:19:42,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:42,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2019-10-13 21:19:42,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:42,553 INFO L225 Difference]: With dead ends: 1221 [2019-10-13 21:19:42,554 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 21:19:42,557 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:42,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 21:19:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 786. [2019-10-13 21:19:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-10-13 21:19:42,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1044 transitions. [2019-10-13 21:19:42,609 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1044 transitions. Word has length 222 [2019-10-13 21:19:42,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:42,611 INFO L462 AbstractCegarLoop]: Abstraction has 786 states and 1044 transitions. [2019-10-13 21:19:42,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:42,611 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1044 transitions. [2019-10-13 21:19:42,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2019-10-13 21:19:42,617 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:42,618 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] [2019-10-13 21:19:42,618 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:42,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:42,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1395334039, now seen corresponding path program 1 times [2019-10-13 21:19:42,619 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:42,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399094606] [2019-10-13 21:19:42,619 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,620 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-10-13 21:19:42,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399094606] [2019-10-13 21:19:42,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:42,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:42,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660694122] [2019-10-13 21:19:42,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:42,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:42,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:42,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:42,855 INFO L87 Difference]: Start difference. First operand 786 states and 1044 transitions. Second operand 3 states. [2019-10-13 21:19:42,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:42,911 INFO L93 Difference]: Finished difference Result 1510 states and 2044 transitions. [2019-10-13 21:19:42,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:42,912 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2019-10-13 21:19:42,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:42,919 INFO L225 Difference]: With dead ends: 1510 [2019-10-13 21:19:42,920 INFO L226 Difference]: Without dead ends: 841 [2019-10-13 21:19:42,923 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-13 21:19:42,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 840. [2019-10-13 21:19:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 840 states. [2019-10-13 21:19:42,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1132 transitions. [2019-10-13 21:19:42,975 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1132 transitions. Word has length 230 [2019-10-13 21:19:42,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:42,977 INFO L462 AbstractCegarLoop]: Abstraction has 840 states and 1132 transitions. [2019-10-13 21:19:42,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1132 transitions. [2019-10-13 21:19:42,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-10-13 21:19:42,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:42,983 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] [2019-10-13 21:19:42,983 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:42,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:42,984 INFO L82 PathProgramCache]: Analyzing trace with hash -424313440, now seen corresponding path program 1 times [2019-10-13 21:19:42,984 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:42,984 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048791915] [2019-10-13 21:19:42,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:42,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2019-10-13 21:19:43,343 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048791915] [2019-10-13 21:19:43,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:43,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:43,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297287427] [2019-10-13 21:19:43,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:43,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:43,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:43,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:43,346 INFO L87 Difference]: Start difference. First operand 840 states and 1132 transitions. Second operand 3 states. [2019-10-13 21:19:43,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:43,412 INFO L93 Difference]: Finished difference Result 1413 states and 1904 transitions. [2019-10-13 21:19:43,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:43,413 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-10-13 21:19:43,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:43,423 INFO L225 Difference]: With dead ends: 1413 [2019-10-13 21:19:43,423 INFO L226 Difference]: Without dead ends: 992 [2019-10-13 21:19:43,427 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 [2019-10-13 21:19:43,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-13 21:19:43,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 991. [2019-10-13 21:19:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2019-10-13 21:19:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1343 transitions. [2019-10-13 21:19:43,489 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1343 transitions. Word has length 231 [2019-10-13 21:19:43,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:43,490 INFO L462 AbstractCegarLoop]: Abstraction has 991 states and 1343 transitions. [2019-10-13 21:19:43,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:43,490 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1343 transitions. [2019-10-13 21:19:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2019-10-13 21:19:43,500 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:43,500 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] [2019-10-13 21:19:43,501 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:43,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:43,501 INFO L82 PathProgramCache]: Analyzing trace with hash 417129015, now seen corresponding path program 1 times [2019-10-13 21:19:43,502 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:43,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263661001] [2019-10-13 21:19:43,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:43,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:43,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:43,910 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-13 21:19:43,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263661001] [2019-10-13 21:19:43,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:43,911 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:19:43,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036846397] [2019-10-13 21:19:43,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:19:43,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:43,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:19:43,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:19:43,914 INFO L87 Difference]: Start difference. First operand 991 states and 1343 transitions. Second operand 6 states. [2019-10-13 21:19:44,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:44,804 INFO L93 Difference]: Finished difference Result 2407 states and 3264 transitions. [2019-10-13 21:19:44,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:19:44,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 378 [2019-10-13 21:19:44,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:44,825 INFO L225 Difference]: With dead ends: 2407 [2019-10-13 21:19:44,826 INFO L226 Difference]: Without dead ends: 1881 [2019-10-13 21:19:44,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:19:44,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2019-10-13 21:19:44,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 1870. [2019-10-13 21:19:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2019-10-13 21:19:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2561 transitions. [2019-10-13 21:19:44,942 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2561 transitions. Word has length 378 [2019-10-13 21:19:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:44,943 INFO L462 AbstractCegarLoop]: Abstraction has 1870 states and 2561 transitions. [2019-10-13 21:19:44,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:19:44,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2561 transitions. [2019-10-13 21:19:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-10-13 21:19:44,955 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:44,956 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] [2019-10-13 21:19:44,956 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:44,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:44,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1849311616, now seen corresponding path program 1 times [2019-10-13 21:19:44,957 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:44,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369482390] [2019-10-13 21:19:44,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:44,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:44,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2019-10-13 21:19:45,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369482390] [2019-10-13 21:19:45,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:45,459 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 21:19:45,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100385914] [2019-10-13 21:19:45,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 21:19:45,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:45,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 21:19:45,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:19:45,462 INFO L87 Difference]: Start difference. First operand 1870 states and 2561 transitions. Second operand 13 states. [2019-10-13 21:19:46,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:46,082 INFO L93 Difference]: Finished difference Result 2973 states and 4015 transitions. [2019-10-13 21:19:46,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:19:46,083 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 379 [2019-10-13 21:19:46,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:46,097 INFO L225 Difference]: With dead ends: 2973 [2019-10-13 21:19:46,097 INFO L226 Difference]: Without dead ends: 1916 [2019-10-13 21:19:46,102 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 [2019-10-13 21:19:46,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2019-10-13 21:19:46,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1912. [2019-10-13 21:19:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1912 states. [2019-10-13 21:19:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1912 states to 1912 states and 2618 transitions. [2019-10-13 21:19:46,230 INFO L78 Accepts]: Start accepts. Automaton has 1912 states and 2618 transitions. Word has length 379 [2019-10-13 21:19:46,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:46,231 INFO L462 AbstractCegarLoop]: Abstraction has 1912 states and 2618 transitions. [2019-10-13 21:19:46,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 21:19:46,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1912 states and 2618 transitions. [2019-10-13 21:19:46,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2019-10-13 21:19:46,245 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:46,245 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] [2019-10-13 21:19:46,246 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:46,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:46,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1019360707, now seen corresponding path program 1 times [2019-10-13 21:19:46,247 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:46,247 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72029730] [2019-10-13 21:19:46,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:46,247 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:46,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-13 21:19:46,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72029730] [2019-10-13 21:19:46,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:46,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:46,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287001176] [2019-10-13 21:19:46,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:46,565 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:46,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:46,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:46,566 INFO L87 Difference]: Start difference. First operand 1912 states and 2618 transitions. Second operand 3 states. [2019-10-13 21:19:46,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:46,740 INFO L93 Difference]: Finished difference Result 5430 states and 7564 transitions. [2019-10-13 21:19:46,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:46,740 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 392 [2019-10-13 21:19:46,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:46,765 INFO L225 Difference]: With dead ends: 5430 [2019-10-13 21:19:46,766 INFO L226 Difference]: Without dead ends: 3554 [2019-10-13 21:19:46,778 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:46,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2019-10-13 21:19:46,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3547. [2019-10-13 21:19:46,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2019-10-13 21:19:46,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4907 transitions. [2019-10-13 21:19:46,980 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4907 transitions. Word has length 392 [2019-10-13 21:19:46,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:46,981 INFO L462 AbstractCegarLoop]: Abstraction has 3547 states and 4907 transitions. [2019-10-13 21:19:46,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4907 transitions. [2019-10-13 21:19:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2019-10-13 21:19:47,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:47,001 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] [2019-10-13 21:19:47,001 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:47,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:47,002 INFO L82 PathProgramCache]: Analyzing trace with hash 898900797, now seen corresponding path program 1 times [2019-10-13 21:19:47,002 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:47,002 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786323640] [2019-10-13 21:19:47,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:47,247 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2019-10-13 21:19:47,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786323640] [2019-10-13 21:19:47,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:47,248 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:19:47,248 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855191569] [2019-10-13 21:19:47,249 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:19:47,249 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:47,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:19:47,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:47,250 INFO L87 Difference]: Start difference. First operand 3547 states and 4907 transitions. Second operand 3 states. [2019-10-13 21:19:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:47,551 INFO L93 Difference]: Finished difference Result 8601 states and 12117 transitions. [2019-10-13 21:19:47,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:19:47,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2019-10-13 21:19:47,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:47,583 INFO L225 Difference]: With dead ends: 8601 [2019-10-13 21:19:47,583 INFO L226 Difference]: Without dead ends: 5102 [2019-10-13 21:19:47,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:19:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2019-10-13 21:19:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5099. [2019-10-13 21:19:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-10-13 21:19:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7066 transitions. [2019-10-13 21:19:47,887 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7066 transitions. Word has length 394 [2019-10-13 21:19:47,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:47,888 INFO L462 AbstractCegarLoop]: Abstraction has 5099 states and 7066 transitions. [2019-10-13 21:19:47,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:19:47,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7066 transitions. [2019-10-13 21:19:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2019-10-13 21:19:47,913 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:47,913 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] [2019-10-13 21:19:47,914 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:47,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:47,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1508164640, now seen corresponding path program 1 times [2019-10-13 21:19:47,915 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:47,915 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232227651] [2019-10-13 21:19:47,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,915 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:47,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:48,622 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:19:48,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232227651] [2019-10-13 21:19:48,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030839102] [2019-10-13 21:19:48,623 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 [2019-10-13 21:19:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:50,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 4230 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 21:19:50,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 21:19:50,698 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:51,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:51,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:19:52,026 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:52,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:52,377 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-13 21:19:52,377 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:52,378 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [24, 11] total 41 [2019-10-13 21:19:52,378 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902845523] [2019-10-13 21:19:52,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:19:52,379 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:52,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:19:52,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1531, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:19:52,380 INFO L87 Difference]: Start difference. First operand 5099 states and 7066 transitions. Second operand 11 states. [2019-10-13 21:19:55,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:55,258 INFO L93 Difference]: Finished difference Result 10090 states and 14023 transitions. [2019-10-13 21:19:55,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:19:55,259 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 362 [2019-10-13 21:19:55,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:55,290 INFO L225 Difference]: With dead ends: 10090 [2019-10-13 21:19:55,290 INFO L226 Difference]: Without dead ends: 5141 [2019-10-13 21:19:55,305 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 708 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=137, Invalid=1843, Unknown=0, NotChecked=0, Total=1980 [2019-10-13 21:19:55,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5141 states. [2019-10-13 21:19:55,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5141 to 5141. [2019-10-13 21:19:55,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5141 states. [2019-10-13 21:19:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5141 states to 5141 states and 7120 transitions. [2019-10-13 21:19:55,648 INFO L78 Accepts]: Start accepts. Automaton has 5141 states and 7120 transitions. Word has length 362 [2019-10-13 21:19:55,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:55,649 INFO L462 AbstractCegarLoop]: Abstraction has 5141 states and 7120 transitions. [2019-10-13 21:19:55,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:19:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5141 states and 7120 transitions. [2019-10-13 21:19:55,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2019-10-13 21:19:55,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:55,671 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] [2019-10-13 21:19:55,892 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:19:55,892 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:55,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:55,893 INFO L82 PathProgramCache]: Analyzing trace with hash 421113011, now seen corresponding path program 1 times [2019-10-13 21:19:55,893 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:55,893 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548440606] [2019-10-13 21:19:55,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:55,894 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:55,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:56,717 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:19:56,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548440606] [2019-10-13 21:19:56,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073804194] [2019-10-13 21:19:56,718 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 [2019-10-13 21:19:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:57,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 21:19:57,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:19:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2019-10-13 21:19:58,199 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:19:59,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:59,199 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:59,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:19:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2019-10-13 21:19:59,452 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:19:59,452 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [24, 9] total 37 [2019-10-13 21:19:59,452 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709229846] [2019-10-13 21:19:59,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:19:59,453 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:59,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:19:59,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1237, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:19:59,454 INFO L87 Difference]: Start difference. First operand 5141 states and 7120 transitions. Second operand 9 states. [2019-10-13 21:20:02,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:20:02,325 INFO L93 Difference]: Finished difference Result 10099 states and 14050 transitions. [2019-10-13 21:20:02,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:20:02,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 363 [2019-10-13 21:20:02,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:20:02,355 INFO L225 Difference]: With dead ends: 10099 [2019-10-13 21:20:02,355 INFO L226 Difference]: Without dead ends: 5153 [2019-10-13 21:20:02,371 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 757 GetRequests, 715 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=116, Invalid=1444, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 21:20:02,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2019-10-13 21:20:02,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2019-10-13 21:20:02,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2019-10-13 21:20:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 7135 transitions. [2019-10-13 21:20:02,613 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 7135 transitions. Word has length 363 [2019-10-13 21:20:02,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:20:02,613 INFO L462 AbstractCegarLoop]: Abstraction has 5153 states and 7135 transitions. [2019-10-13 21:20:02,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:20:02,614 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 7135 transitions. [2019-10-13 21:20:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2019-10-13 21:20:02,632 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:20:02,634 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] [2019-10-13 21:20:02,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:20:02,845 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:20:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:20:02,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1117327743, now seen corresponding path program 1 times [2019-10-13 21:20:02,846 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:20:02,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818492081] [2019-10-13 21:20:02,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:02,847 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:20:02,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:20:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:20:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2019-10-13 21:20:03,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818492081] [2019-10-13 21:20:03,495 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708829555] [2019-10-13 21:20:03,495 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