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_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:14:05,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:14:05,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:14:05,380 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:14:05,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:14:05,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:14:05,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:14:05,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:14:05,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:14:05,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:14:05,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:14:05,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:14:05,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:14:05,403 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:14:05,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:14:05,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:14:05,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:14:05,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:14:05,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:14:05,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:14:05,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:14:05,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:14:05,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:14:05,423 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:14:05,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:14:05,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:14:05,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:14:05,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:14:05,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:14:05,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:14:05,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:14:05,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:14:05,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:14:05,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:14:05,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:14:05,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:14:05,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:14:05,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:14:05,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:14:05,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:14:05,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:14:05,444 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:14:05,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:14:05,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:14:05,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:14:05,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:14:05,462 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:14:05,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:14:05,462 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:14:05,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:14:05,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:14:05,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:14:05,464 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:14:05,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:14:05,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:14:05,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:14:05,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:14:05,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:14:05,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:05,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:14:05,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:14:05,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:14:05,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:14:05,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:14:05,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:14:05,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:14:05,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:14:05,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:14:05,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:14:05,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:14:05,769 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:14:05,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-13 21:14:05,852 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f90928/a9af3d785b664ca2a3dfb60b560f2550/FLAGc57ab74c3 [2019-10-13 21:14:06,491 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:14:06,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product26.cil.c [2019-10-13 21:14:06,527 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f90928/a9af3d785b664ca2a3dfb60b560f2550/FLAGc57ab74c3 [2019-10-13 21:14:06,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee6f90928/a9af3d785b664ca2a3dfb60b560f2550 [2019-10-13 21:14:06,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:14:06,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:14:06,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:06,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:14:06,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:14:06,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5fb77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:06, skipping insertion in model container [2019-10-13 21:14:06,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:14:06" (1/1) ... [2019-10-13 21:14:06,721 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:14:06,809 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:14:07,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:07,607 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:14:07,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:14:07,909 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:14:07,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07 WrapperNode [2019-10-13 21:14:07,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:14:07,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:14:07,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:14:07,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:14:07,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:07,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:08,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:08,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:08,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... [2019-10-13 21:14:08,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:14:08,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:14:08,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:14:08,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:14:08,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:14:08,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:14:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:14:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:14:08,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:14:08,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:08,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:14:08,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:14:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:14:08,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:14:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:14:08,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:14:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:14:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:14:08,184 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:14:08,185 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:14:08,186 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:14:08,187 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:14:08,188 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:14:08,189 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:14:08,190 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:14:08,191 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:14:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:14:08,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:14:08,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:14:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:14:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:14:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:14:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:14:08,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:14:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:14:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:14:08,196 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:14:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:14:08,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:14:08,199 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:14:08,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:14:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:14:08,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:14:08,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:14:08,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:14:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:14:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:14:08,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:14:08,203 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:14:08,204 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:14:08,205 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:14:08,206 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:14:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:14:08,207 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:14:08,210 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:14:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:14:08,211 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:14:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:14:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:14:08,212 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:14:08,213 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:14:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:14:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:14:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:14:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:14:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:14:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:14:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:14:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:14:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:14:08,221 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:14:08,222 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:14:08,223 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:14:08,224 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:14:08,225 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:14:08,226 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:14:08,227 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:14:08,228 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:14:08,229 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:14:08,230 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:14:08,231 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:14:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:14:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:14:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:14:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:14:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:14:08,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:14:10,605 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:14:10,606 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:14:10,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:10 BoogieIcfgContainer [2019-10-13 21:14:10,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:14:10,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:14:10,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:14:10,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:14:10,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:14:06" (1/3) ... [2019-10-13 21:14:10,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48703137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:10, skipping insertion in model container [2019-10-13 21:14:10,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:14:07" (2/3) ... [2019-10-13 21:14:10,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48703137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:14:10, skipping insertion in model container [2019-10-13 21:14:10,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:14:10" (3/3) ... [2019-10-13 21:14:10,618 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2019-10-13 21:14:10,629 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:14:10,642 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:14:10,654 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:14:10,703 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:14:10,703 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:14:10,704 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:14:10,708 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:14:10,708 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:14:10,708 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:14:10,708 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:14:10,709 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:14:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states. [2019-10-13 21:14:10,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 21:14:10,790 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:10,793 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:10,796 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:10,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:10,803 INFO L82 PathProgramCache]: Analyzing trace with hash 249801548, now seen corresponding path program 1 times [2019-10-13 21:14:10,813 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:10,814 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336673865] [2019-10-13 21:14:10,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,814 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:10,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:11,507 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336673865] [2019-10-13 21:14:11,508 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:11,508 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:14:11,508 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47221516] [2019-10-13 21:14:11,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:14:11,515 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:11,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:14:11,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:14:11,533 INFO L87 Difference]: Start difference. First operand 601 states. Second operand 2 states. [2019-10-13 21:14:11,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:11,640 INFO L93 Difference]: Finished difference Result 877 states and 1188 transitions. [2019-10-13 21:14:11,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:14:11,644 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-13 21:14:11,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:11,677 INFO L225 Difference]: With dead ends: 877 [2019-10-13 21:14:11,677 INFO L226 Difference]: Without dead ends: 572 [2019-10-13 21:14:11,693 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 [2019-10-13 21:14:11,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-13 21:14:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-13 21:14:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-13 21:14:11,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 780 transitions. [2019-10-13 21:14:11,837 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 780 transitions. Word has length 154 [2019-10-13 21:14:11,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:11,840 INFO L462 AbstractCegarLoop]: Abstraction has 572 states and 780 transitions. [2019-10-13 21:14:11,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:14:11,841 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 780 transitions. [2019-10-13 21:14:11,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-13 21:14:11,853 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:11,854 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:11,854 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:11,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:11,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1309331988, now seen corresponding path program 1 times [2019-10-13 21:14:11,855 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:11,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302127794] [2019-10-13 21:14:11,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:11,856 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:12,131 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:12,132 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302127794] [2019-10-13 21:14:12,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:12,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:12,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094575308] [2019-10-13 21:14:12,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:12,135 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:12,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:12,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:12,136 INFO L87 Difference]: Start difference. First operand 572 states and 780 transitions. Second operand 3 states. [2019-10-13 21:14:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:12,208 INFO L93 Difference]: Finished difference Result 860 states and 1154 transitions. [2019-10-13 21:14:12,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:12,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-13 21:14:12,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:12,219 INFO L225 Difference]: With dead ends: 860 [2019-10-13 21:14:12,220 INFO L226 Difference]: Without dead ends: 575 [2019-10-13 21:14:12,223 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:12,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-13 21:14:12,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 574. [2019-10-13 21:14:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-13 21:14:12,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 782 transitions. [2019-10-13 21:14:12,263 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 782 transitions. Word has length 155 [2019-10-13 21:14:12,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:12,264 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 782 transitions. [2019-10-13 21:14:12,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:12,265 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 782 transitions. [2019-10-13 21:14:12,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-13 21:14:12,269 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:12,269 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:12,269 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:12,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:12,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1076372643, now seen corresponding path program 1 times [2019-10-13 21:14:12,270 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:12,270 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050340028] [2019-10-13 21:14:12,270 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:12,271 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:12,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:12,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050340028] [2019-10-13 21:14:12,566 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:12,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:12,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393904719] [2019-10-13 21:14:12,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:12,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:12,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:12,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:12,573 INFO L87 Difference]: Start difference. First operand 574 states and 782 transitions. Second operand 3 states. [2019-10-13 21:14:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:12,644 INFO L93 Difference]: Finished difference Result 1128 states and 1568 transitions. [2019-10-13 21:14:12,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:12,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2019-10-13 21:14:12,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:12,654 INFO L225 Difference]: With dead ends: 1128 [2019-10-13 21:14:12,655 INFO L226 Difference]: Without dead ends: 619 [2019-10-13 21:14:12,658 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:12,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-10-13 21:14:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 618. [2019-10-13 21:14:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-13 21:14:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 857 transitions. [2019-10-13 21:14:12,716 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 857 transitions. Word has length 167 [2019-10-13 21:14:12,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:12,717 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 857 transitions. [2019-10-13 21:14:12,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:12,718 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 857 transitions. [2019-10-13 21:14:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:14:12,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:12,731 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:12,731 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:12,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:12,732 INFO L82 PathProgramCache]: Analyzing trace with hash -55572167, now seen corresponding path program 1 times [2019-10-13 21:14:12,733 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:12,733 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298024418] [2019-10-13 21:14:12,734 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:12,734 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:12,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:13,014 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298024418] [2019-10-13 21:14:13,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:13,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:13,015 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500546304] [2019-10-13 21:14:13,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:13,016 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:13,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:13,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:13,017 INFO L87 Difference]: Start difference. First operand 618 states and 857 transitions. Second operand 3 states. [2019-10-13 21:14:13,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:13,077 INFO L93 Difference]: Finished difference Result 1257 states and 1788 transitions. [2019-10-13 21:14:13,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:13,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-13 21:14:13,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:13,085 INFO L225 Difference]: With dead ends: 1257 [2019-10-13 21:14:13,085 INFO L226 Difference]: Without dead ends: 704 [2019-10-13 21:14:13,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:13,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2019-10-13 21:14:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 703. [2019-10-13 21:14:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 703 states. [2019-10-13 21:14:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 1001 transitions. [2019-10-13 21:14:13,132 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 1001 transitions. Word has length 168 [2019-10-13 21:14:13,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:13,133 INFO L462 AbstractCegarLoop]: Abstraction has 703 states and 1001 transitions. [2019-10-13 21:14:13,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 1001 transitions. [2019-10-13 21:14:13,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-13 21:14:13,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:13,142 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:13,143 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:13,144 INFO L82 PathProgramCache]: Analyzing trace with hash 1062481768, now seen corresponding path program 1 times [2019-10-13 21:14:13,144 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:13,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435042119] [2019-10-13 21:14:13,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:13,145 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:13,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 21:14:14,260 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435042119] [2019-10-13 21:14:14,260 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:14,261 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2019-10-13 21:14:14,261 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542887787] [2019-10-13 21:14:14,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-10-13 21:14:14,262 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:14,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-10-13 21:14:14,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2019-10-13 21:14:14,263 INFO L87 Difference]: Start difference. First operand 703 states and 1001 transitions. Second operand 35 states. [2019-10-13 21:14:20,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:20,291 INFO L93 Difference]: Finished difference Result 2051 states and 2980 transitions. [2019-10-13 21:14:20,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 21:14:20,291 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 171 [2019-10-13 21:14:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:20,300 INFO L225 Difference]: With dead ends: 2051 [2019-10-13 21:14:20,300 INFO L226 Difference]: Without dead ends: 1380 [2019-10-13 21:14:20,305 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=298, Invalid=4124, Unknown=0, NotChecked=0, Total=4422 [2019-10-13 21:14:20,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2019-10-13 21:14:20,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1070. [2019-10-13 21:14:20,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2019-10-13 21:14:20,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1597 transitions. [2019-10-13 21:14:20,363 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1597 transitions. Word has length 171 [2019-10-13 21:14:20,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:20,363 INFO L462 AbstractCegarLoop]: Abstraction has 1070 states and 1597 transitions. [2019-10-13 21:14:20,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-10-13 21:14:20,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1597 transitions. [2019-10-13 21:14:20,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-13 21:14:20,369 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:20,369 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:20,370 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:20,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1787377896, now seen corresponding path program 1 times [2019-10-13 21:14:20,370 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:20,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255100061] [2019-10-13 21:14:20,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,371 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:14:20,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255100061] [2019-10-13 21:14:20,563 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:20,563 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:14:20,563 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631498868] [2019-10-13 21:14:20,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:14:20,564 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:20,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:14:20,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,565 INFO L87 Difference]: Start difference. First operand 1070 states and 1597 transitions. Second operand 3 states. [2019-10-13 21:14:20,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:20,649 INFO L93 Difference]: Finished difference Result 2390 states and 3682 transitions. [2019-10-13 21:14:20,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:14:20,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2019-10-13 21:14:20,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:20,660 INFO L225 Difference]: With dead ends: 2390 [2019-10-13 21:14:20,661 INFO L226 Difference]: Without dead ends: 1399 [2019-10-13 21:14:20,668 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:14:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2019-10-13 21:14:20,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 1398. [2019-10-13 21:14:20,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2019-10-13 21:14:20,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2167 transitions. [2019-10-13 21:14:20,834 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2167 transitions. Word has length 170 [2019-10-13 21:14:20,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:20,835 INFO L462 AbstractCegarLoop]: Abstraction has 1398 states and 2167 transitions. [2019-10-13 21:14:20,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:14:20,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2167 transitions. [2019-10-13 21:14:20,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-13 21:14:20,843 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:20,843 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-13 21:14:20,843 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:20,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:20,844 INFO L82 PathProgramCache]: Analyzing trace with hash -50944113, now seen corresponding path program 1 times [2019-10-13 21:14:20,844 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:20,844 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641340187] [2019-10-13 21:14:20,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:20,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:21,579 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:14:21,579 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641340187] [2019-10-13 21:14:21,580 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120275732] [2019-10-13 21:14:21,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:22,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 21:14:22,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:14:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-13 21:14:22,508 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:14:22,845 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:22,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-13 21:14:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:23,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 21:14:23,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-13 21:14:23,005 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531730956] [2019-10-13 21:14:23,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:14:23,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:23,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:14:23,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-13 21:14:23,007 INFO L87 Difference]: Start difference. First operand 1398 states and 2167 transitions. Second operand 7 states. [2019-10-13 21:14:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:24,250 INFO L93 Difference]: Finished difference Result 2749 states and 4291 transitions. [2019-10-13 21:14:24,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:24,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-10-13 21:14:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:24,262 INFO L225 Difference]: With dead ends: 2749 [2019-10-13 21:14:24,262 INFO L226 Difference]: Without dead ends: 1402 [2019-10-13 21:14:24,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 339 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-13 21:14:24,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2019-10-13 21:14:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2019-10-13 21:14:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1402 states. [2019-10-13 21:14:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 2172 transitions. [2019-10-13 21:14:24,368 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 2172 transitions. Word has length 173 [2019-10-13 21:14:24,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:24,369 INFO L462 AbstractCegarLoop]: Abstraction has 1402 states and 2172 transitions. [2019-10-13 21:14:24,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:14:24,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 2172 transitions. [2019-10-13 21:14:24,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-13 21:14:24,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:24,380 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:24,587 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:14:24,588 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2069323625, now seen corresponding path program 1 times [2019-10-13 21:14:24,588 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:24,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545077974] [2019-10-13 21:14:24,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:24,589 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:24,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:25,306 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545077974] [2019-10-13 21:14:25,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:25,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:14:25,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413556945] [2019-10-13 21:14:25,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:14:25,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:25,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:14:25,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:14:25,311 INFO L87 Difference]: Start difference. First operand 1402 states and 2172 transitions. Second operand 26 states. [2019-10-13 21:14:35,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:35,377 INFO L93 Difference]: Finished difference Result 3922 states and 5848 transitions. [2019-10-13 21:14:35,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2019-10-13 21:14:35,378 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 174 [2019-10-13 21:14:35,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:35,400 INFO L225 Difference]: With dead ends: 3922 [2019-10-13 21:14:35,400 INFO L226 Difference]: Without dead ends: 3646 [2019-10-13 21:14:35,404 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1516 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=724, Invalid=5596, Unknown=0, NotChecked=0, Total=6320 [2019-10-13 21:14:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2019-10-13 21:14:35,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 3035. [2019-10-13 21:14:35,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3035 states. [2019-10-13 21:14:35,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4680 transitions. [2019-10-13 21:14:35,555 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4680 transitions. Word has length 174 [2019-10-13 21:14:35,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:35,556 INFO L462 AbstractCegarLoop]: Abstraction has 3035 states and 4680 transitions. [2019-10-13 21:14:35,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:14:35,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4680 transitions. [2019-10-13 21:14:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:35,569 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:35,570 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:35,570 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:35,570 INFO L82 PathProgramCache]: Analyzing trace with hash 483136297, now seen corresponding path program 1 times [2019-10-13 21:14:35,571 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:35,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553508379] [2019-10-13 21:14:35,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:35,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:35,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:14:35,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553508379] [2019-10-13 21:14:35,733 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:35,733 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:35,734 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148479220] [2019-10-13 21:14:35,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:35,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:35,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:35,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:35,735 INFO L87 Difference]: Start difference. First operand 3035 states and 4680 transitions. Second operand 5 states. [2019-10-13 21:14:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:36,881 INFO L93 Difference]: Finished difference Result 6597 states and 9917 transitions. [2019-10-13 21:14:36,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:14:36,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 175 [2019-10-13 21:14:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:36,920 INFO L225 Difference]: With dead ends: 6597 [2019-10-13 21:14:36,921 INFO L226 Difference]: Without dead ends: 5772 [2019-10-13 21:14:36,927 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 [2019-10-13 21:14:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5772 states. [2019-10-13 21:14:37,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5772 to 5235. [2019-10-13 21:14:37,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5235 states. [2019-10-13 21:14:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5235 states to 5235 states and 7853 transitions. [2019-10-13 21:14:37,281 INFO L78 Accepts]: Start accepts. Automaton has 5235 states and 7853 transitions. Word has length 175 [2019-10-13 21:14:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:37,282 INFO L462 AbstractCegarLoop]: Abstraction has 5235 states and 7853 transitions. [2019-10-13 21:14:37,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:37,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5235 states and 7853 transitions. [2019-10-13 21:14:37,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:37,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:37,301 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:37,301 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:37,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:37,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1871716322, now seen corresponding path program 1 times [2019-10-13 21:14:37,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:37,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535776626] [2019-10-13 21:14:37,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:37,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:37,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:37,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:14:37,519 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535776626] [2019-10-13 21:14:37,519 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:37,520 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 21:14:37,520 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259899905] [2019-10-13 21:14:37,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 21:14:37,521 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:37,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 21:14:37,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:14:37,522 INFO L87 Difference]: Start difference. First operand 5235 states and 7853 transitions. Second operand 12 states. [2019-10-13 21:14:37,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:37,944 INFO L93 Difference]: Finished difference Result 7959 states and 11647 transitions. [2019-10-13 21:14:37,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 21:14:37,945 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 175 [2019-10-13 21:14:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:37,985 INFO L225 Difference]: With dead ends: 7959 [2019-10-13 21:14:37,986 INFO L226 Difference]: Without dead ends: 5466 [2019-10-13 21:14:37,999 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:14:38,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5466 states. [2019-10-13 21:14:38,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5466 to 5466. [2019-10-13 21:14:38,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5466 states. [2019-10-13 21:14:38,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 8222 transitions. [2019-10-13 21:14:38,335 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 8222 transitions. Word has length 175 [2019-10-13 21:14:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:38,335 INFO L462 AbstractCegarLoop]: Abstraction has 5466 states and 8222 transitions. [2019-10-13 21:14:38,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 21:14:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 8222 transitions. [2019-10-13 21:14:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:38,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:38,354 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:38,354 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:38,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:38,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1526967544, now seen corresponding path program 1 times [2019-10-13 21:14:38,355 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:38,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097192134] [2019-10-13 21:14:38,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:38,356 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:38,356 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:38,555 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-13 21:14:38,556 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097192134] [2019-10-13 21:14:38,556 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:38,556 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:14:38,556 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996236102] [2019-10-13 21:14:38,557 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:14:38,557 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:38,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:14:38,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:14:38,615 INFO L87 Difference]: Start difference. First operand 5466 states and 8222 transitions. Second operand 9 states. [2019-10-13 21:14:38,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:38,972 INFO L93 Difference]: Finished difference Result 6071 states and 9029 transitions. [2019-10-13 21:14:38,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:14:38,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 175 [2019-10-13 21:14:38,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:38,984 INFO L225 Difference]: With dead ends: 6071 [2019-10-13 21:14:38,984 INFO L226 Difference]: Without dead ends: 2044 [2019-10-13 21:14:38,999 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:14:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2019-10-13 21:14:39,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2042. [2019-10-13 21:14:39,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2042 states. [2019-10-13 21:14:39,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 3032 transitions. [2019-10-13 21:14:39,096 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 3032 transitions. Word has length 175 [2019-10-13 21:14:39,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:39,097 INFO L462 AbstractCegarLoop]: Abstraction has 2042 states and 3032 transitions. [2019-10-13 21:14:39,097 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:14:39,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 3032 transitions. [2019-10-13 21:14:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-13 21:14:39,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:39,105 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 21:14:39,105 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:39,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1142566586, now seen corresponding path program 2 times [2019-10-13 21:14:39,105 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:39,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062999334] [2019-10-13 21:14:39,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:39,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:39,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat