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 -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 05:59:08,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 05:59:08,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 05:59:08,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 05:59:08,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 05:59:08,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 05:59:08,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 05:59:08,210 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 05:59:08,212 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 05:59:08,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 05:59:08,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 05:59:08,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 05:59:08,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 05:59:08,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 05:59:08,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 05:59:08,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 05:59:08,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 05:59:08,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 05:59:08,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 05:59:08,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 05:59:08,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 05:59:08,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 05:59:08,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 05:59:08,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 05:59:08,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 05:59:08,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 05:59:08,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 05:59:08,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 05:59:08,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 05:59:08,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 05:59:08,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 05:59:08,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 05:59:08,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 05:59:08,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 05:59:08,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 05:59:08,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 05:59:08,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 05:59:08,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 05:59:08,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 05:59:08,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 05:59:08,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 05:59:08,258 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 [2019-09-08 05:59:08,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 05:59:08,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 05:59:08,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 05:59:08,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 05:59:08,294 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 05:59:08,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 05:59:08,296 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 05:59:08,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 05:59:08,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 05:59:08,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 05:59:08,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 05:59:08,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 05:59:08,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 05:59:08,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 05:59:08,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 05:59:08,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 05:59:08,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 05:59:08,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 05:59:08,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 05:59:08,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 05:59:08,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 05:59:08,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 05:59:08,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 05:59:08,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 05:59:08,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 05:59:08,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 05:59:08,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 05:59:08,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 05:59:08,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 05:59:08,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 05:59:08,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 05:59:08,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 05:59:08,387 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 05:59:08,387 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 05:59:08,388 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product34.cil.c [2019-09-08 05:59:08,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b6dd469/f387db9c81d240619c3284098bac471d/FLAGb83f4f7bb [2019-09-08 05:59:09,130 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 05:59:09,131 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product34.cil.c [2019-09-08 05:59:09,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b6dd469/f387db9c81d240619c3284098bac471d/FLAGb83f4f7bb [2019-09-08 05:59:09,364 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44b6dd469/f387db9c81d240619c3284098bac471d [2019-09-08 05:59:09,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 05:59:09,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 05:59:09,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 05:59:09,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 05:59:09,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 05:59:09,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:59:09" (1/1) ... [2019-09-08 05:59:09,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bfd25a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:09, skipping insertion in model container [2019-09-08 05:59:09,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:59:09" (1/1) ... [2019-09-08 05:59:09,398 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 05:59:09,481 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 05:59:10,384 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:59:10,408 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 05:59:10,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:59:10,627 INFO L192 MainTranslator]: Completed translation [2019-09-08 05:59:10,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10 WrapperNode [2019-09-08 05:59:10,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 05:59:10,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 05:59:10,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 05:59:10,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 05:59:10,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (1/1) ... [2019-09-08 05:59:10,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 05:59:10,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 05:59:10,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 05:59:10,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 05:59:10,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (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 [2019-09-08 05:59:10,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 05:59:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 05:59:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 05:59:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 05:59:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-09-08 05:59:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-09-08 05:59:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 05:59:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-08 05:59:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-08 05:59:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-08 05:59:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-08 05:59:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-08 05:59:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-08 05:59:10,929 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-08 05:59:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-08 05:59:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-08 05:59:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-08 05:59:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-08 05:59:10,930 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-08 05:59:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-08 05:59:10,934 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-08 05:59:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-08 05:59:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-08 05:59:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-08 05:59:10,936 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-08 05:59:10,937 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-08 05:59:10,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 05:59:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 05:59:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 05:59:10,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-08 05:59:10,940 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-08 05:59:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-08 05:59:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-08 05:59:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-08 05:59:10,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-08 05:59:10,942 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-08 05:59:10,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-08 05:59:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-08 05:59:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-08 05:59:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-08 05:59:10,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-08 05:59:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-08 05:59:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-08 05:59:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-08 05:59:10,945 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-08 05:59:10,946 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-09-08 05:59:10,946 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-08 05:59:10,946 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-08 05:59:10,946 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-08 05:59:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-08 05:59:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-08 05:59:10,947 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-08 05:59:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-08 05:59:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-08 05:59:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-08 05:59:10,948 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-08 05:59:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-08 05:59:10,949 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-08 05:59:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-08 05:59:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-08 05:59:10,950 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-08 05:59:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-08 05:59:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-08 05:59:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-08 05:59:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-08 05:59:10,951 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-08 05:59:10,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-08 05:59:10,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-08 05:59:10,954 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-08 05:59:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-08 05:59:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-08 05:59:10,955 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-08 05:59:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-08 05:59:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-08 05:59:10,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-08 05:59:10,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 05:59:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 05:59:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-08 05:59:10,957 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-08 05:59:10,958 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-08 05:59:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-08 05:59:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-08 05:59:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-08 05:59:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-08 05:59:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-08 05:59:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-08 05:59:10,960 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-08 05:59:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 05:59:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 05:59:10,961 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-08 05:59:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 05:59:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-08 05:59:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-09-08 05:59:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 05:59:10,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-09-08 05:59:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-08 05:59:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-08 05:59:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-08 05:59:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-08 05:59:10,968 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-08 05:59:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-08 05:59:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-08 05:59:10,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-08 05:59:10,977 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-08 05:59:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-08 05:59:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-08 05:59:10,978 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-08 05:59:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-08 05:59:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-08 05:59:10,979 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-08 05:59:10,980 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 05:59:10,981 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 05:59:10,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 05:59:10,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-08 05:59:10,984 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-08 05:59:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-08 05:59:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-08 05:59:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-08 05:59:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-08 05:59:10,985 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-08 05:59:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-08 05:59:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-08 05:59:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-08 05:59:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-08 05:59:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-08 05:59:10,991 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-08 05:59:10,992 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-08 05:59:10,993 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-08 05:59:10,994 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-08 05:59:10,995 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-08 05:59:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-08 05:59:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-08 05:59:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 05:59:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 05:59:10,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 05:59:13,200 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 05:59:13,200 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 05:59:13,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:59:13 BoogieIcfgContainer [2019-09-08 05:59:13,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 05:59:13,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 05:59:13,203 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 05:59:13,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 05:59:13,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 05:59:09" (1/3) ... [2019-09-08 05:59:13,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55be40b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:59:13, skipping insertion in model container [2019-09-08 05:59:13,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:59:10" (2/3) ... [2019-09-08 05:59:13,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55be40b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:59:13, skipping insertion in model container [2019-09-08 05:59:13,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:59:13" (3/3) ... [2019-09-08 05:59:13,211 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product34.cil.c [2019-09-08 05:59:13,222 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 05:59:13,240 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 05:59:13,258 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 05:59:13,311 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 05:59:13,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 05:59:13,312 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 05:59:13,314 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 05:59:13,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 05:59:13,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 05:59:13,315 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 05:59:13,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 05:59:13,316 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 05:59:13,362 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states. [2019-09-08 05:59:13,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-08 05:59:13,388 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:13,389 INFO L399 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] [2019-09-08 05:59:13,393 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:13,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:13,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1909664876, now seen corresponding path program 1 times [2019-09-08 05:59:13,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:13,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:13,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:13,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:13,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:59:14,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:14,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 05:59:14,142 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 05:59:14,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 05:59:14,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 05:59:14,158 INFO L87 Difference]: Start difference. First operand 655 states. Second operand 2 states. [2019-09-08 05:59:14,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:14,255 INFO L93 Difference]: Finished difference Result 996 states and 1339 transitions. [2019-09-08 05:59:14,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 05:59:14,257 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-09-08 05:59:14,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:14,283 INFO L225 Difference]: With dead ends: 996 [2019-09-08 05:59:14,284 INFO L226 Difference]: Without dead ends: 626 [2019-09-08 05:59:14,292 INFO L628 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 [2019-09-08 05:59:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2019-09-08 05:59:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2019-09-08 05:59:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 626 states. [2019-09-08 05:59:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 848 transitions. [2019-09-08 05:59:14,449 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 848 transitions. Word has length 167 [2019-09-08 05:59:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:14,452 INFO L475 AbstractCegarLoop]: Abstraction has 626 states and 848 transitions. [2019-09-08 05:59:14,452 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 05:59:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 848 transitions. [2019-09-08 05:59:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-09-08 05:59:14,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:14,467 INFO L399 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] [2019-09-08 05:59:14,467 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:14,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:14,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1779863714, now seen corresponding path program 1 times [2019-09-08 05:59:14,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:14,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:14,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:14,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:14,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:59:14,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:14,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:59:14,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:59:14,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:59:14,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:59:14,745 INFO L87 Difference]: Start difference. First operand 626 states and 848 transitions. Second operand 3 states. [2019-09-08 05:59:14,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:14,812 INFO L93 Difference]: Finished difference Result 979 states and 1304 transitions. [2019-09-08 05:59:14,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:59:14,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-09-08 05:59:14,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:14,820 INFO L225 Difference]: With dead ends: 979 [2019-09-08 05:59:14,821 INFO L226 Difference]: Without dead ends: 629 [2019-09-08 05:59:14,825 INFO L628 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 [2019-09-08 05:59:14,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2019-09-08 05:59:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 628. [2019-09-08 05:59:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-09-08 05:59:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 850 transitions. [2019-09-08 05:59:14,882 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 850 transitions. Word has length 168 [2019-09-08 05:59:14,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:14,884 INFO L475 AbstractCegarLoop]: Abstraction has 628 states and 850 transitions. [2019-09-08 05:59:14,884 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:59:14,884 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 850 transitions. [2019-09-08 05:59:14,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-08 05:59:14,890 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:14,890 INFO L399 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, 1, 1, 1] [2019-09-08 05:59:14,891 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:14,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:14,891 INFO L82 PathProgramCache]: Analyzing trace with hash -562274134, now seen corresponding path program 1 times [2019-09-08 05:59:14,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:14,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:14,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:14,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:14,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:59:15,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:15,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:59:15,175 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:59:15,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:59:15,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:59:15,176 INFO L87 Difference]: Start difference. First operand 628 states and 850 transitions. Second operand 3 states. [2019-09-08 05:59:15,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:15,219 INFO L93 Difference]: Finished difference Result 1234 states and 1701 transitions. [2019-09-08 05:59:15,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:59:15,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-09-08 05:59:15,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:15,225 INFO L225 Difference]: With dead ends: 1234 [2019-09-08 05:59:15,226 INFO L226 Difference]: Without dead ends: 671 [2019-09-08 05:59:15,228 INFO L628 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 [2019-09-08 05:59:15,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2019-09-08 05:59:15,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 670. [2019-09-08 05:59:15,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-09-08 05:59:15,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 922 transitions. [2019-09-08 05:59:15,257 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 922 transitions. Word has length 174 [2019-09-08 05:59:15,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:15,258 INFO L475 AbstractCegarLoop]: Abstraction has 670 states and 922 transitions. [2019-09-08 05:59:15,258 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:59:15,258 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 922 transitions. [2019-09-08 05:59:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-09-08 05:59:15,262 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:15,262 INFO L399 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, 1, 1, 1, 1] [2019-09-08 05:59:15,263 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:15,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:15,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1803150498, now seen corresponding path program 1 times [2019-09-08 05:59:15,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:15,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:15,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:15,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:15,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 05:59:15,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:15,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:59:15,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:59:15,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:59:15,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:59:15,465 INFO L87 Difference]: Start difference. First operand 670 states and 922 transitions. Second operand 3 states. [2019-09-08 05:59:15,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:15,507 INFO L93 Difference]: Finished difference Result 1148 states and 1566 transitions. [2019-09-08 05:59:15,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:59:15,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2019-09-08 05:59:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:15,514 INFO L225 Difference]: With dead ends: 1148 [2019-09-08 05:59:15,514 INFO L226 Difference]: Without dead ends: 811 [2019-09-08 05:59:15,516 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:59:15,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-09-08 05:59:15,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 810. [2019-09-08 05:59:15,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 810 states. [2019-09-08 05:59:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 1119 transitions. [2019-09-08 05:59:15,556 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 1119 transitions. Word has length 175 [2019-09-08 05:59:15,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:15,557 INFO L475 AbstractCegarLoop]: Abstraction has 810 states and 1119 transitions. [2019-09-08 05:59:15,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:59:15,557 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1119 transitions. [2019-09-08 05:59:15,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2019-09-08 05:59:15,564 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:15,564 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:59:15,564 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:15,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:15,565 INFO L82 PathProgramCache]: Analyzing trace with hash -753828039, now seen corresponding path program 1 times [2019-09-08 05:59:15,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:15,565 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:15,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:15,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:15,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-09-08 05:59:15,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:15,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 05:59:15,932 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 05:59:15,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 05:59:15,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 05:59:15,934 INFO L87 Difference]: Start difference. First operand 810 states and 1119 transitions. Second operand 6 states. [2019-09-08 05:59:16,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:16,779 INFO L93 Difference]: Finished difference Result 2010 states and 2769 transitions. [2019-09-08 05:59:16,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 05:59:16,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 320 [2019-09-08 05:59:16,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:16,790 INFO L225 Difference]: With dead ends: 2010 [2019-09-08 05:59:16,791 INFO L226 Difference]: Without dead ends: 1571 [2019-09-08 05:59:16,793 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 05:59:16,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2019-09-08 05:59:16,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1560. [2019-09-08 05:59:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1560 states. [2019-09-08 05:59:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1560 states to 1560 states and 2174 transitions. [2019-09-08 05:59:16,911 INFO L78 Accepts]: Start accepts. Automaton has 1560 states and 2174 transitions. Word has length 320 [2019-09-08 05:59:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:16,912 INFO L475 AbstractCegarLoop]: Abstraction has 1560 states and 2174 transitions. [2019-09-08 05:59:16,912 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 05:59:16,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1560 states and 2174 transitions. [2019-09-08 05:59:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2019-09-08 05:59:16,921 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:16,921 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:59:16,922 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:16,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:16,922 INFO L82 PathProgramCache]: Analyzing trace with hash -536958527, now seen corresponding path program 1 times [2019-09-08 05:59:16,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:16,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:16,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:16,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:16,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:17,221 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-09-08 05:59:17,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:59:17,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 05:59:17,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 05:59:17,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 05:59:17,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 05:59:17,225 INFO L87 Difference]: Start difference. First operand 1560 states and 2174 transitions. Second operand 11 states. [2019-09-08 05:59:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:59:17,709 INFO L93 Difference]: Finished difference Result 2435 states and 3327 transitions. [2019-09-08 05:59:17,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 05:59:17,710 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 321 [2019-09-08 05:59:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:59:17,721 INFO L225 Difference]: With dead ends: 2435 [2019-09-08 05:59:17,721 INFO L226 Difference]: Without dead ends: 1534 [2019-09-08 05:59:17,725 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-09-08 05:59:17,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2019-09-08 05:59:17,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1530. [2019-09-08 05:59:17,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1530 states. [2019-09-08 05:59:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2123 transitions. [2019-09-08 05:59:17,848 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2123 transitions. Word has length 321 [2019-09-08 05:59:17,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:59:17,848 INFO L475 AbstractCegarLoop]: Abstraction has 1530 states and 2123 transitions. [2019-09-08 05:59:17,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 05:59:17,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2123 transitions. [2019-09-08 05:59:17,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-09-08 05:59:17,857 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:59:17,858 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:59:17,858 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:59:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:59:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash -237439355, now seen corresponding path program 1 times [2019-09-08 05:59:17,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:59:17,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:59:17,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:17,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:17,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:59:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-08 05:59:18,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:59:18,409 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:59:18,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:59:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:59:19,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 3856 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:59:19,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:59:19,513 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-09-08 05:59:19,531 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:59:19,531 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 29 [2019-09-08 05:59:19,535 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 05:59:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 05:59:19,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2019-09-08 05:59:19,536 INFO L87 Difference]: Start difference. First operand 1530 states and 2123 transitions. Second operand 29 states. [2019-09-08 06:00:09,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:00:09,936 INFO L93 Difference]: Finished difference Result 10302 states and 14790 transitions. [2019-09-08 06:00:09,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2019-09-08 06:00:09,938 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 329 [2019-09-08 06:00:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:00:09,997 INFO L225 Difference]: With dead ends: 10302 [2019-09-08 06:00:09,997 INFO L226 Difference]: Without dead ends: 8571 [2019-09-08 06:00:10,023 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10468 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2054, Invalid=28048, Unknown=0, NotChecked=0, Total=30102 [2019-09-08 06:00:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8571 states. [2019-09-08 06:00:10,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8571 to 8141. [2019-09-08 06:00:10,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8141 states. [2019-09-08 06:00:10,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8141 states to 8141 states and 11505 transitions. [2019-09-08 06:00:10,520 INFO L78 Accepts]: Start accepts. Automaton has 8141 states and 11505 transitions. Word has length 329 [2019-09-08 06:00:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:00:10,521 INFO L475 AbstractCegarLoop]: Abstraction has 8141 states and 11505 transitions. [2019-09-08 06:00:10,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 06:00:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8141 states and 11505 transitions. [2019-09-08 06:00:10,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2019-09-08 06:00:10,546 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:00:10,547 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:00:10,547 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:00:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:00:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash 536789241, now seen corresponding path program 1 times [2019-09-08 06:00:10,548 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:00:10,548 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:00:10,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:10,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:00:10,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:00:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-09-08 06:00:10,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:00:10,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:00:10,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:00:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:00:10,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:00:10,794 INFO L87 Difference]: Start difference. First operand 8141 states and 11505 transitions. Second operand 5 states. [2019-09-08 06:00:11,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:00:11,098 INFO L93 Difference]: Finished difference Result 14621 states and 20458 transitions. [2019-09-08 06:00:11,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:00:11,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2019-09-08 06:00:11,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:00:11,163 INFO L225 Difference]: With dead ends: 14621 [2019-09-08 06:00:11,163 INFO L226 Difference]: Without dead ends: 7581 [2019-09-08 06:00:11,196 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:00:11,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7581 states. [2019-09-08 06:00:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7581 to 7491. [2019-09-08 06:00:11,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7491 states. [2019-09-08 06:00:11,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 10564 transitions. [2019-09-08 06:00:11,651 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 10564 transitions. Word has length 334 [2019-09-08 06:00:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:00:11,651 INFO L475 AbstractCegarLoop]: Abstraction has 7491 states and 10564 transitions. [2019-09-08 06:00:11,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:00:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 10564 transitions. [2019-09-08 06:00:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2019-09-08 06:00:11,677 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:00:11,678 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:00:11,678 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:00:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:00:11,678 INFO L82 PathProgramCache]: Analyzing trace with hash -955886991, now seen corresponding path program 1 times [2019-09-08 06:00:11,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:00:11,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:00:11,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:11,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:00:11,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:00:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-09-08 06:00:12,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:00:12,205 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:00:12,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:00:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:00:12,858 INFO L256 TraceCheckSpWp]: Trace formula consists of 3858 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 06:00:12,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:00:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-09-08 06:00:13,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:00:13,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [18] total 23 [2019-09-08 06:00:13,078 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 06:00:13,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 06:00:13,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=459, Unknown=0, NotChecked=0, Total=506 [2019-09-08 06:00:13,081 INFO L87 Difference]: Start difference. First operand 7491 states and 10564 transitions. Second operand 23 states. [2019-09-08 06:00:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:00:15,813 INFO L93 Difference]: Finished difference Result 15629 states and 22731 transitions. [2019-09-08 06:00:15,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 06:00:15,813 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 331 [2019-09-08 06:00:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:00:15,862 INFO L225 Difference]: With dead ends: 15629 [2019-09-08 06:00:15,862 INFO L226 Difference]: Without dead ends: 8003 [2019-09-08 06:00:15,894 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=155, Invalid=1825, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 06:00:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8003 states. [2019-09-08 06:00:16,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8003 to 7961. [2019-09-08 06:00:16,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7961 states. [2019-09-08 06:00:16,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7961 states to 7961 states and 11342 transitions. [2019-09-08 06:00:16,312 INFO L78 Accepts]: Start accepts. Automaton has 7961 states and 11342 transitions. Word has length 331 [2019-09-08 06:00:16,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:00:16,313 INFO L475 AbstractCegarLoop]: Abstraction has 7961 states and 11342 transitions. [2019-09-08 06:00:16,313 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 06:00:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 7961 states and 11342 transitions. [2019-09-08 06:00:16,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2019-09-08 06:00:16,342 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:00:16,343 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:00:16,343 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:00:16,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:00:16,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1533105288, now seen corresponding path program 1 times [2019-09-08 06:00:16,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:00:16,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:00:16,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:16,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:00:16,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:00:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:00:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-09-08 06:00:16,772 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:00:16,772 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:00:16,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:00:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:00:17,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 06:00:17,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:00:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-09-08 06:00:17,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:00:17,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2019-09-08 06:00:17,643 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 06:00:17,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 06:00:17,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2019-09-08 06:00:17,645 INFO L87 Difference]: Start difference. First operand 7961 states and 11342 transitions. Second operand 25 states. [2019-09-08 06:01:01,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:01:01,597 INFO L93 Difference]: Finished difference Result 23886 states and 34442 transitions. [2019-09-08 06:01:01,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2019-09-08 06:01:01,597 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 334 [2019-09-08 06:01:01,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:01:01,654 INFO L225 Difference]: With dead ends: 23886 [2019-09-08 06:01:01,655 INFO L226 Difference]: Without dead ends: 13213 [2019-09-08 06:01:01,700 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9624 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1939, Invalid=25451, Unknown=0, NotChecked=0, Total=27390 [2019-09-08 06:01:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13213 states. [2019-09-08 06:01:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13213 to 11943. [2019-09-08 06:01:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11943 states. [2019-09-08 06:01:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11943 states to 11943 states and 17064 transitions. [2019-09-08 06:01:02,292 INFO L78 Accepts]: Start accepts. Automaton has 11943 states and 17064 transitions. Word has length 334 [2019-09-08 06:01:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:01:02,292 INFO L475 AbstractCegarLoop]: Abstraction has 11943 states and 17064 transitions. [2019-09-08 06:01:02,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 06:01:02,293 INFO L276 IsEmpty]: Start isEmpty. Operand 11943 states and 17064 transitions. [2019-09-08 06:01:02,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2019-09-08 06:01:02,315 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:01:02,317 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:01:02,317 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:01:02,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:01:02,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1892578227, now seen corresponding path program 1 times [2019-09-08 06:01:02,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:01:02,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:01:02,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:01:02,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:01:02,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:01:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:01:02,791 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-09-08 06:01:02,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:01:02,792 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:01:02,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:01:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:01:03,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 06:01:03,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:01:03,705 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-09-08 06:01:03,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:01:03,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2019-09-08 06:01:03,856 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 06:01:03,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 06:01:03,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2019-09-08 06:01:03,857 INFO L87 Difference]: Start difference. First operand 11943 states and 17064 transitions. Second operand 25 states. [2019-09-08 06:01:45,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:01:45,959 INFO L93 Difference]: Finished difference Result 33500 states and 48359 transitions. [2019-09-08 06:01:45,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2019-09-08 06:01:45,960 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 335 [2019-09-08 06:01:45,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:01:46,036 INFO L225 Difference]: With dead ends: 33500 [2019-09-08 06:01:46,037 INFO L226 Difference]: Without dead ends: 17411 [2019-09-08 06:01:46,083 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9627 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=1939, Invalid=25451, Unknown=0, NotChecked=0, Total=27390 [2019-09-08 06:01:46,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17411 states. [2019-09-08 06:01:47,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17411 to 15116. [2019-09-08 06:01:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15116 states. [2019-09-08 06:01:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15116 states to 15116 states and 21571 transitions. [2019-09-08 06:01:47,235 INFO L78 Accepts]: Start accepts. Automaton has 15116 states and 21571 transitions. Word has length 335 [2019-09-08 06:01:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:01:47,236 INFO L475 AbstractCegarLoop]: Abstraction has 15116 states and 21571 transitions. [2019-09-08 06:01:47,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 06:01:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 15116 states and 21571 transitions. [2019-09-08 06:01:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2019-09-08 06:01:47,261 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:01:47,262 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:01:47,263 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:01:47,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:01:47,263 INFO L82 PathProgramCache]: Analyzing trace with hash -148311337, now seen corresponding path program 1 times [2019-09-08 06:01:47,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:01:47,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:01:47,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:01:47,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:01:47,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:01:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:01:47,537 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-09-08 06:01:47,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:01:47,537 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:01:47,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:01:48,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:01:48,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 06:01:48,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:01:48,254 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 06:01:48,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:01:48,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-09-08 06:01:48,270 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 06:01:48,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 06:01:48,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-08 06:01:48,272 INFO L87 Difference]: Start difference. First operand 15116 states and 21571 transitions. Second operand 14 states. [2019-09-08 06:02:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:02:02,489 INFO L93 Difference]: Finished difference Result 64816 states and 113661 transitions. [2019-09-08 06:02:02,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 06:02:02,490 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 335 [2019-09-08 06:02:02,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:02:02,812 INFO L225 Difference]: With dead ends: 64816 [2019-09-08 06:02:02,812 INFO L226 Difference]: Without dead ends: 49780 [2019-09-08 06:02:02,902 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 06:02:02,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49780 states. [2019-09-08 06:02:06,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49780 to 47634. [2019-09-08 06:02:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47634 states. [2019-09-08 06:02:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47634 states to 47634 states and 81876 transitions. [2019-09-08 06:02:07,112 INFO L78 Accepts]: Start accepts. Automaton has 47634 states and 81876 transitions. Word has length 335 [2019-09-08 06:02:07,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:02:07,112 INFO L475 AbstractCegarLoop]: Abstraction has 47634 states and 81876 transitions. [2019-09-08 06:02:07,113 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 06:02:07,113 INFO L276 IsEmpty]: Start isEmpty. Operand 47634 states and 81876 transitions. [2019-09-08 06:02:07,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-09-08 06:02:07,174 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:02:07,174 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:02:07,174 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:02:07,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:02:07,175 INFO L82 PathProgramCache]: Analyzing trace with hash 85498173, now seen corresponding path program 1 times [2019-09-08 06:02:07,175 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:02:07,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:02:07,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:07,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:02:07,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:02:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-09-08 06:02:07,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:02:07,431 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:02:07,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:02:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:02:08,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 4031 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 06:02:08,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:02:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2019-09-08 06:02:08,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:02:08,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2019-09-08 06:02:08,220 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 06:02:08,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 06:02:08,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-08 06:02:08,225 INFO L87 Difference]: Start difference. First operand 47634 states and 81876 transitions. Second operand 12 states. [2019-09-08 06:02:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:02:19,421 INFO L93 Difference]: Finished difference Result 161054 states and 293460 transitions. [2019-09-08 06:02:19,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 06:02:19,421 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 381 [2019-09-08 06:02:19,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:02:20,136 INFO L225 Difference]: With dead ends: 161054 [2019-09-08 06:02:20,136 INFO L226 Difference]: Without dead ends: 109690 [2019-09-08 06:02:20,412 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2019-09-08 06:02:20,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109690 states. [2019-09-08 06:02:25,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109690 to 105406. [2019-09-08 06:02:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105406 states. [2019-09-08 06:02:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105406 states to 105406 states and 187307 transitions. [2019-09-08 06:02:25,965 INFO L78 Accepts]: Start accepts. Automaton has 105406 states and 187307 transitions. Word has length 381 [2019-09-08 06:02:25,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:02:25,966 INFO L475 AbstractCegarLoop]: Abstraction has 105406 states and 187307 transitions. [2019-09-08 06:02:25,966 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 06:02:25,967 INFO L276 IsEmpty]: Start isEmpty. Operand 105406 states and 187307 transitions. [2019-09-08 06:02:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2019-09-08 06:02:26,059 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:02:26,060 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:02:26,060 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:02:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:02:26,061 INFO L82 PathProgramCache]: Analyzing trace with hash -234103759, now seen corresponding path program 1 times [2019-09-08 06:02:26,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:02:26,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:02:26,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:26,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:02:26,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:02:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2019-09-08 06:02:26,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:02:26,574 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:02:26,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:02:27,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:02:27,209 INFO L256 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 06:02:27,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:02:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2019-09-08 06:02:27,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:02:27,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 4] total 28 [2019-09-08 06:02:27,400 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 06:02:27,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 06:02:27,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=702, Unknown=0, NotChecked=0, Total=756 [2019-09-08 06:02:27,401 INFO L87 Difference]: Start difference. First operand 105406 states and 187307 transitions. Second operand 28 states. [2019-09-08 06:02:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:02:36,333 INFO L93 Difference]: Finished difference Result 239231 states and 538080 transitions. [2019-09-08 06:02:36,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-09-08 06:02:36,334 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 338 [2019-09-08 06:02:36,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:02:37,258 INFO L225 Difference]: With dead ends: 239231 [2019-09-08 06:02:37,258 INFO L226 Difference]: Without dead ends: 127156 [2019-09-08 06:02:37,808 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=1384, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 06:02:37,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127156 states. [2019-09-08 06:02:50,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127156 to 120292. [2019-09-08 06:02:50,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120292 states. [2019-09-08 06:02:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120292 states to 120292 states and 220080 transitions. [2019-09-08 06:02:51,042 INFO L78 Accepts]: Start accepts. Automaton has 120292 states and 220080 transitions. Word has length 338 [2019-09-08 06:02:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:02:51,043 INFO L475 AbstractCegarLoop]: Abstraction has 120292 states and 220080 transitions. [2019-09-08 06:02:51,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 06:02:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 120292 states and 220080 transitions. [2019-09-08 06:02:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2019-09-08 06:02:51,131 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:02:51,132 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:02:51,132 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:02:51,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:02:51,132 INFO L82 PathProgramCache]: Analyzing trace with hash -838736266, now seen corresponding path program 1 times [2019-09-08 06:02:51,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:02:51,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:02:51,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:51,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:02:51,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:02:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:02:51,406 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-09-08 06:02:51,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:02:51,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:02:51,408 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:02:51,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:02:51,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:02:51,408 INFO L87 Difference]: Start difference. First operand 120292 states and 220080 transitions. Second operand 3 states. [2019-09-08 06:02:59,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:02:59,539 INFO L93 Difference]: Finished difference Result 241131 states and 441255 transitions. [2019-09-08 06:02:59,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:02:59,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 408 [2019-09-08 06:02:59,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:03:00,269 INFO L225 Difference]: With dead ends: 241131 [2019-09-08 06:03:00,270 INFO L226 Difference]: Without dead ends: 120950 [2019-09-08 06:03:00,548 INFO L628 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 [2019-09-08 06:03:00,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120950 states. [2019-09-08 06:03:06,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120950 to 120942. [2019-09-08 06:03:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120942 states. [2019-09-08 06:03:13,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120942 states to 120942 states and 221283 transitions. [2019-09-08 06:03:13,900 INFO L78 Accepts]: Start accepts. Automaton has 120942 states and 221283 transitions. Word has length 408 [2019-09-08 06:03:13,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:03:13,901 INFO L475 AbstractCegarLoop]: Abstraction has 120942 states and 221283 transitions. [2019-09-08 06:03:13,901 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:03:13,901 INFO L276 IsEmpty]: Start isEmpty. Operand 120942 states and 221283 transitions. [2019-09-08 06:03:13,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2019-09-08 06:03:13,984 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:03:13,984 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:03:13,984 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:03:13,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:03:13,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1110315144, now seen corresponding path program 1 times [2019-09-08 06:03:13,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:03:13,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:03:13,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:03:13,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:03:13,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:03:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:03:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2019-09-08 06:03:14,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:03:14,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:03:14,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:03:14,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:03:14,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:03:14,206 INFO L87 Difference]: Start difference. First operand 120942 states and 221283 transitions. Second operand 3 states. [2019-09-08 06:03:23,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:03:23,114 INFO L93 Difference]: Finished difference Result 243099 states and 444886 transitions. [2019-09-08 06:03:23,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:03:23,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 387 [2019-09-08 06:03:23,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:03:23,756 INFO L225 Difference]: With dead ends: 243099 [2019-09-08 06:03:23,756 INFO L226 Difference]: Without dead ends: 122264 [2019-09-08 06:03:24,046 INFO L628 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 [2019-09-08 06:03:24,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122264 states. [2019-09-08 06:03:29,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122264 to 122256. [2019-09-08 06:03:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122256 states. [2019-09-08 06:03:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122256 states to 122256 states and 223688 transitions. [2019-09-08 06:03:30,268 INFO L78 Accepts]: Start accepts. Automaton has 122256 states and 223688 transitions. Word has length 387 [2019-09-08 06:03:30,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:03:30,268 INFO L475 AbstractCegarLoop]: Abstraction has 122256 states and 223688 transitions. [2019-09-08 06:03:30,269 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:03:30,269 INFO L276 IsEmpty]: Start isEmpty. Operand 122256 states and 223688 transitions. [2019-09-08 06:03:30,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2019-09-08 06:03:30,335 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:03:30,336 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:03:30,336 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:03:30,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:03:30,336 INFO L82 PathProgramCache]: Analyzing trace with hash -364661893, now seen corresponding path program 1 times [2019-09-08 06:03:30,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:03:30,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:03:30,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:03:30,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:03:30,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:03:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:03:31,587 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-09-08 06:03:31,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:03:31,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:03:31,589 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:03:31,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:03:31,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:03:31,590 INFO L87 Difference]: Start difference. First operand 122256 states and 223688 transitions. Second operand 8 states. [2019-09-08 06:03:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:03:53,302 INFO L93 Difference]: Finished difference Result 367492 states and 674994 transitions. [2019-09-08 06:03:53,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 06:03:53,303 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 420 [2019-09-08 06:03:53,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:03:54,571 INFO L225 Difference]: With dead ends: 367492 [2019-09-08 06:03:54,571 INFO L226 Difference]: Without dead ends: 245370 [2019-09-08 06:03:54,944 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-09-08 06:03:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245370 states. [2019-09-08 06:04:04,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245370 to 153525. [2019-09-08 06:04:04,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153525 states. [2019-09-08 06:04:05,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153525 states to 153525 states and 280812 transitions. [2019-09-08 06:04:05,780 INFO L78 Accepts]: Start accepts. Automaton has 153525 states and 280812 transitions. Word has length 420 [2019-09-08 06:04:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:04:05,780 INFO L475 AbstractCegarLoop]: Abstraction has 153525 states and 280812 transitions. [2019-09-08 06:04:05,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:04:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 153525 states and 280812 transitions. [2019-09-08 06:04:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2019-09-08 06:04:05,885 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:04:05,886 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:04:05,886 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:04:05,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:04:05,887 INFO L82 PathProgramCache]: Analyzing trace with hash 949142251, now seen corresponding path program 1 times [2019-09-08 06:04:05,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:04:05,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:04:05,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:05,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:04:05,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:04:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2019-09-08 06:04:06,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:04:06,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:04:06,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:04:06,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:04:06,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:04:06,982 INFO L87 Difference]: Start difference. First operand 153525 states and 280812 transitions. Second operand 3 states. [2019-09-08 06:04:18,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:04:18,958 INFO L93 Difference]: Finished difference Result 311868 states and 571496 transitions. [2019-09-08 06:04:18,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:04:18,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 382 [2019-09-08 06:04:18,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:04:19,775 INFO L225 Difference]: With dead ends: 311868 [2019-09-08 06:04:19,775 INFO L226 Difference]: Without dead ends: 158481 [2019-09-08 06:04:20,186 INFO L628 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 [2019-09-08 06:04:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158481 states. [2019-09-08 06:04:32,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158481 to 148435. [2019-09-08 06:04:32,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148435 states. [2019-09-08 06:04:33,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148435 states to 148435 states and 272664 transitions. [2019-09-08 06:04:33,777 INFO L78 Accepts]: Start accepts. Automaton has 148435 states and 272664 transitions. Word has length 382 [2019-09-08 06:04:33,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:04:33,777 INFO L475 AbstractCegarLoop]: Abstraction has 148435 states and 272664 transitions. [2019-09-08 06:04:33,777 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:04:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 148435 states and 272664 transitions. [2019-09-08 06:04:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2019-09-08 06:04:33,887 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:04:33,887 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:04:33,888 INFO L418 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:04:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:04:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash 649308371, now seen corresponding path program 1 times [2019-09-08 06:04:33,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:04:33,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:04:33,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:33,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:04:33,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:04:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-09-08 06:04:34,102 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:04:34,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 06:04:34,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:04:34,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:04:34,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:04:34,104 INFO L87 Difference]: Start difference. First operand 148435 states and 272664 transitions. Second operand 6 states. [2019-09-08 06:04:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:04:43,132 INFO L93 Difference]: Finished difference Result 296658 states and 545040 transitions. [2019-09-08 06:04:43,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:04:43,133 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 379 [2019-09-08 06:04:43,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:04:43,789 INFO L225 Difference]: With dead ends: 296658 [2019-09-08 06:04:43,789 INFO L226 Difference]: Without dead ends: 148445 [2019-09-08 06:04:44,143 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:04:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148445 states. [2019-09-08 06:04:58,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148445 to 148435. [2019-09-08 06:04:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148435 states. [2019-09-08 06:04:59,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148435 states to 148435 states and 272536 transitions. [2019-09-08 06:04:59,671 INFO L78 Accepts]: Start accepts. Automaton has 148435 states and 272536 transitions. Word has length 379 [2019-09-08 06:04:59,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:04:59,672 INFO L475 AbstractCegarLoop]: Abstraction has 148435 states and 272536 transitions. [2019-09-08 06:04:59,672 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:04:59,672 INFO L276 IsEmpty]: Start isEmpty. Operand 148435 states and 272536 transitions. [2019-09-08 06:04:59,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2019-09-08 06:04:59,797 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:04:59,797 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:04:59,797 INFO L418 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:04:59,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:04:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash -756958873, now seen corresponding path program 1 times [2019-09-08 06:04:59,798 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:04:59,798 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:04:59,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:59,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:04:59,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:04:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-09-08 06:05:00,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:00,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:05:00,791 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:05:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:05:00,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:05:00,792 INFO L87 Difference]: Start difference. First operand 148435 states and 272536 transitions. Second operand 8 states. [2019-09-08 06:05:23,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:05:23,112 INFO L93 Difference]: Finished difference Result 447013 states and 829940 transitions. [2019-09-08 06:05:23,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 06:05:23,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 410 [2019-09-08 06:05:23,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:05:25,299 INFO L225 Difference]: With dead ends: 447013 [2019-09-08 06:05:25,299 INFO L226 Difference]: Without dead ends: 298756 [2019-09-08 06:05:25,735 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-09-08 06:05:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298756 states. [2019-09-08 06:05:47,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298756 to 189728. [2019-09-08 06:05:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189728 states. [2019-09-08 06:05:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189728 states to 189728 states and 352728 transitions. [2019-09-08 06:05:48,348 INFO L78 Accepts]: Start accepts. Automaton has 189728 states and 352728 transitions. Word has length 410 [2019-09-08 06:05:48,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:05:48,348 INFO L475 AbstractCegarLoop]: Abstraction has 189728 states and 352728 transitions. [2019-09-08 06:05:48,348 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:05:48,348 INFO L276 IsEmpty]: Start isEmpty. Operand 189728 states and 352728 transitions. [2019-09-08 06:05:48,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2019-09-08 06:05:48,542 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:05:48,543 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:05:48,543 INFO L418 AbstractCegarLoop]: === Iteration 21 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:05:48,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:05:48,543 INFO L82 PathProgramCache]: Analyzing trace with hash -120758880, now seen corresponding path program 1 times [2019-09-08 06:05:48,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:05:48,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:05:48,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:48,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:05:48,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:05:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:05:49,657 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2019-09-08 06:05:49,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:05:49,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:05:49,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:05:49,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:05:49,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:05:49,659 INFO L87 Difference]: Start difference. First operand 189728 states and 352728 transitions. Second operand 3 states. [2019-09-08 06:06:05,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:05,474 INFO L93 Difference]: Finished difference Result 398245 states and 746078 transitions. [2019-09-08 06:06:05,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:06:05,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2019-09-08 06:06:05,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:06:06,539 INFO L225 Difference]: With dead ends: 398245 [2019-09-08 06:06:06,539 INFO L226 Difference]: Without dead ends: 208710 [2019-09-08 06:06:07,714 INFO L628 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 [2019-09-08 06:06:07,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208710 states. [2019-09-08 06:06:25,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208710 to 208696. [2019-09-08 06:06:25,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208696 states. [2019-09-08 06:06:27,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208696 states to 208696 states and 393071 transitions. [2019-09-08 06:06:27,352 INFO L78 Accepts]: Start accepts. Automaton has 208696 states and 393071 transitions. Word has length 371 [2019-09-08 06:06:27,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:06:27,353 INFO L475 AbstractCegarLoop]: Abstraction has 208696 states and 393071 transitions. [2019-09-08 06:06:27,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:06:27,353 INFO L276 IsEmpty]: Start isEmpty. Operand 208696 states and 393071 transitions. [2019-09-08 06:06:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2019-09-08 06:06:27,659 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:06:27,660 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:06:27,660 INFO L418 AbstractCegarLoop]: === Iteration 22 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:06:27,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:06:27,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1936449727, now seen corresponding path program 1 times [2019-09-08 06:06:27,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:06:27,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:06:27,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:06:27,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:06:27,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:06:27,943 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2019-09-08 06:06:27,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:06:27,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 06:06:27,945 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:06:27,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:06:27,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:06:27,945 INFO L87 Difference]: Start difference. First operand 208696 states and 393071 transitions. Second operand 8 states. [2019-09-08 06:06:59,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:06:59,376 INFO L93 Difference]: Finished difference Result 629644 states and 1218147 transitions. [2019-09-08 06:06:59,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 06:06:59,377 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 433 [2019-09-08 06:06:59,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:07:02,276 INFO L225 Difference]: With dead ends: 629644 [2019-09-08 06:07:02,276 INFO L226 Difference]: Without dead ends: 421186 [2019-09-08 06:07:02,874 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-09-08 06:07:03,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421186 states. [2019-09-08 06:07:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421186 to 257676. [2019-09-08 06:07:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257676 states. [2019-09-08 06:07:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257676 states to 257676 states and 510799 transitions. [2019-09-08 06:07:36,346 INFO L78 Accepts]: Start accepts. Automaton has 257676 states and 510799 transitions. Word has length 433 [2019-09-08 06:07:36,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:07:36,346 INFO L475 AbstractCegarLoop]: Abstraction has 257676 states and 510799 transitions. [2019-09-08 06:07:36,346 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:07:36,346 INFO L276 IsEmpty]: Start isEmpty. Operand 257676 states and 510799 transitions. [2019-09-08 06:07:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2019-09-08 06:07:36,914 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:07:36,915 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:07:36,915 INFO L418 AbstractCegarLoop]: === Iteration 23 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:07:36,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:07:36,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1265108560, now seen corresponding path program 1 times [2019-09-08 06:07:36,915 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:07:36,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:07:36,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:07:36,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:07:36,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:07:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:07:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2019-09-08 06:07:37,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:07:37,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:07:37,175 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:07:37,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:07:37,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:07:37,175 INFO L87 Difference]: Start difference. First operand 257676 states and 510799 transitions. Second operand 3 states. [2019-09-08 06:08:09,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:08:09,704 INFO L93 Difference]: Finished difference Result 587815 states and 1200488 transitions. [2019-09-08 06:08:09,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:08:09,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2019-09-08 06:08:09,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:08:11,267 INFO L225 Difference]: With dead ends: 587815 [2019-09-08 06:08:11,267 INFO L226 Difference]: Without dead ends: 330396 [2019-09-08 06:08:12,991 INFO L628 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 [2019-09-08 06:08:13,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330396 states. [2019-09-08 06:08:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330396 to 287646. [2019-09-08 06:08:35,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287646 states. [2019-09-08 06:08:37,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287646 states to 287646 states and 611075 transitions. [2019-09-08 06:08:37,368 INFO L78 Accepts]: Start accepts. Automaton has 287646 states and 611075 transitions. Word has length 436 [2019-09-08 06:08:37,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:08:37,369 INFO L475 AbstractCegarLoop]: Abstraction has 287646 states and 611075 transitions. [2019-09-08 06:08:37,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 06:08:37,369 INFO L276 IsEmpty]: Start isEmpty. Operand 287646 states and 611075 transitions. [2019-09-08 06:08:49,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2019-09-08 06:08:49,668 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:08:49,668 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:08:49,669 INFO L418 AbstractCegarLoop]: === Iteration 24 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:08:49,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:08:49,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1932028452, now seen corresponding path program 1 times [2019-09-08 06:08:49,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:08:49,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:08:49,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:08:49,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:08:49,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:08:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:08:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-09-08 06:08:49,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:08:49,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 06:08:49,871 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 06:08:49,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 06:08:49,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 06:08:49,871 INFO L87 Difference]: Start difference. First operand 287646 states and 611075 transitions. Second operand 3 states. [2019-09-08 06:09:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:09:19,726 INFO L93 Difference]: Finished difference Result 714303 states and 1567938 transitions. [2019-09-08 06:09:19,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 06:09:19,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 382 [2019-09-08 06:09:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:09:21,937 INFO L225 Difference]: With dead ends: 714303 [2019-09-08 06:09:21,937 INFO L226 Difference]: Without dead ends: 426920 [2019-09-08 06:09:23,616 INFO L628 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 [2019-09-08 06:09:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426920 states.