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_spec11_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:35,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:35,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:35,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:35,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:35,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:35,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:35,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:35,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:35,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:35,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:35,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:35,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:35,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:35,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:35,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:35,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:35,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:35,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:35,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:35,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:35,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:35,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:35,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:35,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:35,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:35,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:35,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:35,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:35,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:35,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:35,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:35,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:35,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:35,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:35,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:35,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:35,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:35,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:35,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:35,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:35,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:35,218 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:35,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:35,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:35,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:35,221 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:35,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:35,221 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:35,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:35,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:35,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:35,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:35,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:35,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:35,224 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:35,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:35,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:35,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:35,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:35,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:35,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:35,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:35,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:35,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:35,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:35,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:35,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:35,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:35,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:35,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:35,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:35,530 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:35,533 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:35,535 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:35,536 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:35,536 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-15 01:12:35,613 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5176b44cf/b6b91ed0599b4fe6b8a57c79d6536e41/FLAG236430802 [2019-10-15 01:12:36,230 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:36,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product26.cil.c [2019-10-15 01:12:36,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5176b44cf/b6b91ed0599b4fe6b8a57c79d6536e41/FLAG236430802 [2019-10-15 01:12:36,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5176b44cf/b6b91ed0599b4fe6b8a57c79d6536e41 [2019-10-15 01:12:36,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:36,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:36,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:36,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:36,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:36,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:36" (1/1) ... [2019-10-15 01:12:36,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:36, skipping insertion in model container [2019-10-15 01:12:36,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:36" (1/1) ... [2019-10-15 01:12:36,486 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:36,561 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:37,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:37,365 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:37,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:37,709 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:37,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37 WrapperNode [2019-10-15 01:12:37,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:37,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:37,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:37,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:37,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... [2019-10-15 01:12:37,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:37,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:37,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:37,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:37,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:38,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:38,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:38,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:38,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:38,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:38,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:38,021 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:38,022 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:38,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:38,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:38,025 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:38,026 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:38,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:38,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:38,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:38,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:38,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:38,033 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:38,034 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:12:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:38,036 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:38,036 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:38,040 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:38,041 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:38,042 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:38,043 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:38,044 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:38,046 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:38,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:38,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:38,050 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:38,051 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:38,052 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:38,053 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:38,054 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:12:38,055 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:38,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:40,271 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:40,271 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:40,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:40 BoogieIcfgContainer [2019-10-15 01:12:40,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:40,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:40,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:40,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:40,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:36" (1/3) ... [2019-10-15 01:12:40,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd269a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:40, skipping insertion in model container [2019-10-15 01:12:40,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:37" (2/3) ... [2019-10-15 01:12:40,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd269a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:40, skipping insertion in model container [2019-10-15 01:12:40,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:40" (3/3) ... [2019-10-15 01:12:40,285 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product26.cil.c [2019-10-15 01:12:40,297 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:40,311 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:40,323 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:40,372 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:40,372 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:40,372 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:40,372 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:40,372 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:40,373 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:40,373 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:40,373 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:40,406 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-15 01:12:40,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:12:40,435 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:40,437 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:40,439 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:40,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:40,445 INFO L82 PathProgramCache]: Analyzing trace with hash 900111105, now seen corresponding path program 1 times [2019-10-15 01:12:40,457 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:40,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910128324] [2019-10-15 01:12:40,458 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,458 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:40,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:41,216 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910128324] [2019-10-15 01:12:41,216 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:41,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:41,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342521135] [2019-10-15 01:12:41,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:41,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:41,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:41,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:41,247 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-15 01:12:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,352 INFO L93 Difference]: Finished difference Result 871 states and 1182 transitions. [2019-10-15 01:12:41,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:41,356 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-10-15 01:12:41,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:41,388 INFO L225 Difference]: With dead ends: 871 [2019-10-15 01:12:41,388 INFO L226 Difference]: Without dead ends: 569 [2019-10-15 01:12:41,399 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:41,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-10-15 01:12:41,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2019-10-15 01:12:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-15 01:12:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 775 transitions. [2019-10-15 01:12:41,515 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 775 transitions. Word has length 195 [2019-10-15 01:12:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:41,519 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 775 transitions. [2019-10-15 01:12:41,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:41,519 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 775 transitions. [2019-10-15 01:12:41,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:12:41,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:41,531 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:41,531 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:41,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:41,532 INFO L82 PathProgramCache]: Analyzing trace with hash -156800952, now seen corresponding path program 1 times [2019-10-15 01:12:41,533 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:41,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654406165] [2019-10-15 01:12:41,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:41,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:41,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654406165] [2019-10-15 01:12:41,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:41,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:41,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174750890] [2019-10-15 01:12:41,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:41,928 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:41,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:41,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:41,929 INFO L87 Difference]: Start difference. First operand 569 states and 775 transitions. Second operand 3 states. [2019-10-15 01:12:41,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:41,999 INFO L93 Difference]: Finished difference Result 854 states and 1144 transitions. [2019-10-15 01:12:42,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:42,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:12:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,006 INFO L225 Difference]: With dead ends: 854 [2019-10-15 01:12:42,006 INFO L226 Difference]: Without dead ends: 572 [2019-10-15 01:12:42,008 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-15 01:12:42,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2019-10-15 01:12:42,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-15 01:12:42,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 777 transitions. [2019-10-15 01:12:42,041 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 777 transitions. Word has length 196 [2019-10-15 01:12:42,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,042 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 777 transitions. [2019-10-15 01:12:42,042 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:42,042 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 777 transitions. [2019-10-15 01:12:42,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:12:42,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,047 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,048 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1398291401, now seen corresponding path program 1 times [2019-10-15 01:12:42,048 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886070862] [2019-10-15 01:12:42,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,283 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:42,283 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886070862] [2019-10-15 01:12:42,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,284 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:42,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889093957] [2019-10-15 01:12:42,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:42,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:42,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,292 INFO L87 Difference]: Start difference. First operand 571 states and 777 transitions. Second operand 3 states. [2019-10-15 01:12:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:42,369 INFO L93 Difference]: Finished difference Result 1122 states and 1558 transitions. [2019-10-15 01:12:42,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:42,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-15 01:12:42,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,383 INFO L225 Difference]: With dead ends: 1122 [2019-10-15 01:12:42,384 INFO L226 Difference]: Without dead ends: 616 [2019-10-15 01:12:42,387 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-15 01:12:42,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 615. [2019-10-15 01:12:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 615 states. [2019-10-15 01:12:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 852 transitions. [2019-10-15 01:12:42,452 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 852 transitions. Word has length 208 [2019-10-15 01:12:42,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,453 INFO L462 AbstractCegarLoop]: Abstraction has 615 states and 852 transitions. [2019-10-15 01:12:42,453 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:42,454 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 852 transitions. [2019-10-15 01:12:42,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-15 01:12:42,466 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,466 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,467 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1218822354, now seen corresponding path program 1 times [2019-10-15 01:12:42,470 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571383077] [2019-10-15 01:12:42,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,472 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:12:42,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571383077] [2019-10-15 01:12:42,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:42,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:42,849 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554783342] [2019-10-15 01:12:42,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:42,850 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:42,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:42,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,851 INFO L87 Difference]: Start difference. First operand 615 states and 852 transitions. Second operand 3 states. [2019-10-15 01:12:42,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:42,895 INFO L93 Difference]: Finished difference Result 1251 states and 1778 transitions. [2019-10-15 01:12:42,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:42,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 209 [2019-10-15 01:12:42,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:42,902 INFO L225 Difference]: With dead ends: 1251 [2019-10-15 01:12:42,902 INFO L226 Difference]: Without dead ends: 701 [2019-10-15 01:12:42,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:42,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-15 01:12:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-15 01:12:42,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-15 01:12:42,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 996 transitions. [2019-10-15 01:12:42,943 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 996 transitions. Word has length 209 [2019-10-15 01:12:42,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:42,943 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 996 transitions. [2019-10-15 01:12:42,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:42,943 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 996 transitions. [2019-10-15 01:12:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:12:42,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,949 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,949 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1024895096, now seen corresponding path program 1 times [2019-10-15 01:12:42,950 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030434012] [2019-10-15 01:12:42,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:43,455 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030434012] [2019-10-15 01:12:43,455 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,456 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:43,456 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134198819] [2019-10-15 01:12:43,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:43,457 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:43,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:43,460 INFO L87 Difference]: Start difference. First operand 700 states and 996 transitions. Second operand 19 states. [2019-10-15 01:12:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:48,837 INFO L93 Difference]: Finished difference Result 2240 states and 3191 transitions. [2019-10-15 01:12:48,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:48,838 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 212 [2019-10-15 01:12:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:48,855 INFO L225 Difference]: With dead ends: 2240 [2019-10-15 01:12:48,856 INFO L226 Difference]: Without dead ends: 1971 [2019-10-15 01:12:48,859 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:48,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1971 states. [2019-10-15 01:12:48,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1971 to 1934. [2019-10-15 01:12:48,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1934 states. [2019-10-15 01:12:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2772 transitions. [2019-10-15 01:12:48,998 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2772 transitions. Word has length 212 [2019-10-15 01:12:48,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:49,000 INFO L462 AbstractCegarLoop]: Abstraction has 1934 states and 2772 transitions. [2019-10-15 01:12:49,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:49,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2772 transitions. [2019-10-15 01:12:49,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:49,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:49,012 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:49,012 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:49,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:49,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1577885369, now seen corresponding path program 1 times [2019-10-15 01:12:49,013 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:49,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787166785] [2019-10-15 01:12:49,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:49,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:49,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:49,299 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:49,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787166785] [2019-10-15 01:12:49,300 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:49,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:12:49,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128957470] [2019-10-15 01:12:49,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:12:49,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:49,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:12:49,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:12:49,303 INFO L87 Difference]: Start difference. First operand 1934 states and 2772 transitions. Second operand 11 states. [2019-10-15 01:12:49,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:49,812 INFO L93 Difference]: Finished difference Result 3191 states and 4529 transitions. [2019-10-15 01:12:49,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:12:49,812 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-10-15 01:12:49,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:49,826 INFO L225 Difference]: With dead ends: 3191 [2019-10-15 01:12:49,827 INFO L226 Difference]: Without dead ends: 2056 [2019-10-15 01:12:49,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2019-10-15 01:12:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 2056. [2019-10-15 01:12:49,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-15 01:12:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2969 transitions. [2019-10-15 01:12:49,957 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2969 transitions. Word has length 213 [2019-10-15 01:12:49,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:49,958 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2969 transitions. [2019-10-15 01:12:49,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:12:49,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2969 transitions. [2019-10-15 01:12:49,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:49,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:49,970 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:49,970 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:49,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:49,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1520134915, now seen corresponding path program 1 times [2019-10-15 01:12:49,971 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:49,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960892336] [2019-10-15 01:12:49,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:49,971 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:49,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:50,296 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:50,296 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960892336] [2019-10-15 01:12:50,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:50,297 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:50,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573445311] [2019-10-15 01:12:50,298 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:50,299 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:50,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:50,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:50,299 INFO L87 Difference]: Start difference. First operand 2056 states and 2969 transitions. Second operand 15 states. [2019-10-15 01:12:54,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,253 INFO L93 Difference]: Finished difference Result 3371 states and 4832 transitions. [2019-10-15 01:12:54,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:54,255 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 213 [2019-10-15 01:12:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,281 INFO L225 Difference]: With dead ends: 3371 [2019-10-15 01:12:54,281 INFO L226 Difference]: Without dead ends: 2174 [2019-10-15 01:12:54,289 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:54,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2019-10-15 01:12:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2137. [2019-10-15 01:12:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2019-10-15 01:12:54,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3106 transitions. [2019-10-15 01:12:54,432 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3106 transitions. Word has length 213 [2019-10-15 01:12:54,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,432 INFO L462 AbstractCegarLoop]: Abstraction has 2137 states and 3106 transitions. [2019-10-15 01:12:54,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:54,433 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3106 transitions. [2019-10-15 01:12:54,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:12:54,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,442 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:54,442 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,443 INFO L82 PathProgramCache]: Analyzing trace with hash -216810818, now seen corresponding path program 1 times [2019-10-15 01:12:54,443 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142173918] [2019-10-15 01:12:54,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:54,618 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:12:54,618 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142173918] [2019-10-15 01:12:54,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:54,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:54,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141882300] [2019-10-15 01:12:54,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:54,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:54,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:54,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:54,621 INFO L87 Difference]: Start difference. First operand 2137 states and 3106 transitions. Second operand 5 states. [2019-10-15 01:12:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,737 INFO L93 Difference]: Finished difference Result 3096 states and 4417 transitions. [2019-10-15 01:12:54,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:12:54,738 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2019-10-15 01:12:54,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,749 INFO L225 Difference]: With dead ends: 3096 [2019-10-15 01:12:54,750 INFO L226 Difference]: Without dead ends: 1777 [2019-10-15 01:12:54,755 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:54,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2019-10-15 01:12:54,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1777. [2019-10-15 01:12:54,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1777 states. [2019-10-15 01:12:54,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2591 transitions. [2019-10-15 01:12:54,849 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2591 transitions. Word has length 216 [2019-10-15 01:12:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,849 INFO L462 AbstractCegarLoop]: Abstraction has 1777 states and 2591 transitions. [2019-10-15 01:12:54,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2591 transitions. [2019-10-15 01:12:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:54,858 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,858 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:54,859 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,859 INFO L82 PathProgramCache]: Analyzing trace with hash -455156519, now seen corresponding path program 1 times [2019-10-15 01:12:54,859 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,860 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677052810] [2019-10-15 01:12:54,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,860 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,860 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:12:55,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677052810] [2019-10-15 01:12:55,295 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:55,295 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:12:55,296 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732415006] [2019-10-15 01:12:55,296 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:12:55,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:55,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:12:55,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:12:55,297 INFO L87 Difference]: Start difference. First operand 1777 states and 2591 transitions. Second operand 16 states. [2019-10-15 01:12:55,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:55,787 INFO L93 Difference]: Finished difference Result 2766 states and 3968 transitions. [2019-10-15 01:12:55,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:12:55,788 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 213 [2019-10-15 01:12:55,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:55,800 INFO L225 Difference]: With dead ends: 2766 [2019-10-15 01:12:55,800 INFO L226 Difference]: Without dead ends: 1809 [2019-10-15 01:12:55,807 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:12:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2019-10-15 01:12:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1807. [2019-10-15 01:12:55,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1807 states. [2019-10-15 01:12:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 2621 transitions. [2019-10-15 01:12:55,893 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 2621 transitions. Word has length 213 [2019-10-15 01:12:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:55,893 INFO L462 AbstractCegarLoop]: Abstraction has 1807 states and 2621 transitions. [2019-10-15 01:12:55,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:12:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 2621 transitions. [2019-10-15 01:12:55,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:55,906 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:55,906 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:55,906 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:55,907 INFO L82 PathProgramCache]: Analyzing trace with hash -669130923, now seen corresponding path program 1 times [2019-10-15 01:12:55,907 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:55,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455206781] [2019-10-15 01:12:55,907 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:55,908 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:55,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:56,115 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:56,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455206781] [2019-10-15 01:12:56,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:56,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:12:56,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384853299] [2019-10-15 01:12:56,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:12:56,119 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:56,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:12:56,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:12:56,119 INFO L87 Difference]: Start difference. First operand 1807 states and 2621 transitions. Second operand 5 states. [2019-10-15 01:12:57,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:57,255 INFO L93 Difference]: Finished difference Result 4511 states and 6452 transitions. [2019-10-15 01:12:57,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:12:57,256 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-15 01:12:57,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:57,282 INFO L225 Difference]: With dead ends: 4511 [2019-10-15 01:12:57,282 INFO L226 Difference]: Without dead ends: 3842 [2019-10-15 01:12:57,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2019-10-15 01:12:57,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3828. [2019-10-15 01:12:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3828 states. [2019-10-15 01:12:57,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 5510 transitions. [2019-10-15 01:12:57,535 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 5510 transitions. Word has length 213 [2019-10-15 01:12:57,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:57,537 INFO L462 AbstractCegarLoop]: Abstraction has 3828 states and 5510 transitions. [2019-10-15 01:12:57,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 5510 transitions. [2019-10-15 01:12:57,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:57,549 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:57,549 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:57,550 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:57,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1624652202, now seen corresponding path program 1 times [2019-10-15 01:12:57,550 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:57,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686014366] [2019-10-15 01:12:57,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:57,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:12:57,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686014366] [2019-10-15 01:12:57,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:57,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:12:57,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423594275] [2019-10-15 01:12:57,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:12:57,765 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:57,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:12:57,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:12:57,766 INFO L87 Difference]: Start difference. First operand 3828 states and 5510 transitions. Second operand 7 states. [2019-10-15 01:13:00,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:00,221 INFO L93 Difference]: Finished difference Result 11813 states and 18055 transitions. [2019-10-15 01:13:00,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:13:00,222 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2019-10-15 01:13:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:00,288 INFO L225 Difference]: With dead ends: 11813 [2019-10-15 01:13:00,288 INFO L226 Difference]: Without dead ends: 9194 [2019-10-15 01:13:00,306 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:13:00,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9194 states. [2019-10-15 01:13:00,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9194 to 9184. [2019-10-15 01:13:00,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9184 states. [2019-10-15 01:13:00,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9184 states to 9184 states and 13864 transitions. [2019-10-15 01:13:00,765 INFO L78 Accepts]: Start accepts. Automaton has 9184 states and 13864 transitions. Word has length 213 [2019-10-15 01:13:00,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:00,766 INFO L462 AbstractCegarLoop]: Abstraction has 9184 states and 13864 transitions. [2019-10-15 01:13:00,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9184 states and 13864 transitions. [2019-10-15 01:13:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-15 01:13:00,778 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:00,778 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:00,778 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:00,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:00,779 INFO L82 PathProgramCache]: Analyzing trace with hash 902999511, now seen corresponding path program 1 times [2019-10-15 01:13:00,779 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:00,779 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183996232] [2019-10-15 01:13:00,780 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:00,780 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:00,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:01,270 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183996232] [2019-10-15 01:13:01,270 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:01,270 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 01:13:01,270 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437358957] [2019-10-15 01:13:01,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 01:13:01,271 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:01,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 01:13:01,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:13:01,272 INFO L87 Difference]: Start difference. First operand 9184 states and 13864 transitions. Second operand 28 states. [2019-10-15 01:13:02,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:02,560 INFO L93 Difference]: Finished difference Result 18330 states and 28257 transitions. [2019-10-15 01:13:02,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 01:13:02,561 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 214 [2019-10-15 01:13:02,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:02,634 INFO L225 Difference]: With dead ends: 18330 [2019-10-15 01:13:02,634 INFO L226 Difference]: Without dead ends: 10355 [2019-10-15 01:13:02,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:13:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2019-10-15 01:13:03,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10338. [2019-10-15 01:13:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10338 states. [2019-10-15 01:13:03,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10338 states to 10338 states and 15662 transitions. [2019-10-15 01:13:03,322 INFO L78 Accepts]: Start accepts. Automaton has 10338 states and 15662 transitions. Word has length 214 [2019-10-15 01:13:03,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:03,323 INFO L462 AbstractCegarLoop]: Abstraction has 10338 states and 15662 transitions. [2019-10-15 01:13:03,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 01:13:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10338 states and 15662 transitions. [2019-10-15 01:13:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-10-15 01:13:03,337 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:03,338 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:03,338 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:03,339 INFO L82 PathProgramCache]: Analyzing trace with hash 338732121, now seen corresponding path program 1 times [2019-10-15 01:13:03,339 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:03,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606537988] [2019-10-15 01:13:03,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,340 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:03,340 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:03,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606537988] [2019-10-15 01:13:03,705 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:03,705 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:13:03,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715904907] [2019-10-15 01:13:03,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:13:03,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:03,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:13:03,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:13:03,707 INFO L87 Difference]: Start difference. First operand 10338 states and 15662 transitions. Second operand 10 states. [2019-10-15 01:13:03,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:03,940 INFO L93 Difference]: Finished difference Result 10437 states and 15808 transitions. [2019-10-15 01:13:03,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:13:03,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2019-10-15 01:13:03,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:03,998 INFO L225 Difference]: With dead ends: 10437 [2019-10-15 01:13:03,999 INFO L226 Difference]: Without dead ends: 10434 [2019-10-15 01:13:04,010 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:13:04,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10434 states. [2019-10-15 01:13:04,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10434 to 10434. [2019-10-15 01:13:04,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10434 states. [2019-10-15 01:13:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10434 states to 10434 states and 15774 transitions. [2019-10-15 01:13:04,512 INFO L78 Accepts]: Start accepts. Automaton has 10434 states and 15774 transitions. Word has length 218 [2019-10-15 01:13:04,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:04,513 INFO L462 AbstractCegarLoop]: Abstraction has 10434 states and 15774 transitions. [2019-10-15 01:13:04,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:13:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 10434 states and 15774 transitions. [2019-10-15 01:13:04,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2019-10-15 01:13:04,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:04,526 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:04,526 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:04,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1284073295, now seen corresponding path program 1 times [2019-10-15 01:13:04,527 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:04,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902020623] [2019-10-15 01:13:04,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:04,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:04,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:04,689 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:04,689 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902020623] [2019-10-15 01:13:04,689 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:04,690 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:04,690 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554916657] [2019-10-15 01:13:04,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:04,691 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:04,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:04,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:04,691 INFO L87 Difference]: Start difference. First operand 10434 states and 15774 transitions. Second operand 5 states. [2019-10-15 01:13:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:05,056 INFO L93 Difference]: Finished difference Result 19553 states and 29916 transitions. [2019-10-15 01:13:05,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:13:05,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 223 [2019-10-15 01:13:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:05,115 INFO L225 Difference]: With dead ends: 19553 [2019-10-15 01:13:05,116 INFO L226 Difference]: Without dead ends: 10761 [2019-10-15 01:13:05,161 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:05,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10761 states. [2019-10-15 01:13:05,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10761 to 10590. [2019-10-15 01:13:05,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10590 states. [2019-10-15 01:13:05,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10590 states to 10590 states and 15929 transitions. [2019-10-15 01:13:05,714 INFO L78 Accepts]: Start accepts. Automaton has 10590 states and 15929 transitions. Word has length 223 [2019-10-15 01:13:05,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:05,715 INFO L462 AbstractCegarLoop]: Abstraction has 10590 states and 15929 transitions. [2019-10-15 01:13:05,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 10590 states and 15929 transitions. [2019-10-15 01:13:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-15 01:13:05,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:05,731 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:05,731 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:05,731 INFO L82 PathProgramCache]: Analyzing trace with hash 965874213, now seen corresponding path program 1 times [2019-10-15 01:13:05,732 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:05,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025477332] [2019-10-15 01:13:05,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:05,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:05,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:13:05,913 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025477332] [2019-10-15 01:13:05,913 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:05,913 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:13:05,914 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699472977] [2019-10-15 01:13:05,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:13:05,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:13:05,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:13:05,916 INFO L87 Difference]: Start difference. First operand 10590 states and 15929 transitions. Second operand 6 states. [2019-10-15 01:13:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:06,900 INFO L93 Difference]: Finished difference Result 30742 states and 47178 transitions. [2019-10-15 01:13:06,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:13:06,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 224 [2019-10-15 01:13:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted.