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_spec6_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:44:46,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:44:46,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:44:46,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:44:46,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:44:46,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:44:46,479 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:44:46,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:44:46,482 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:44:46,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:44:46,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:44:46,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:44:46,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:44:46,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:44:46,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:44:46,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:44:46,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:44:46,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:44:46,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:44:46,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:44:46,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:44:46,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:44:46,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:44:46,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:44:46,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:44:46,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:44:46,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:44:46,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:44:46,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:44:46,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:44:46,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:44:46,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:44:46,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:44:46,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:44:46,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:44:46,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:44:46,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:44:46,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:44:46,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:44:46,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:44:46,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:44:46,511 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 13:44:46,527 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:44:46,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:44:46,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:44:46,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:44:46,529 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:44:46,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:44:46,530 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:44:46,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:44:46,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:44:46,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:44:46,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:44:46,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:44:46,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:44:46,531 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:44:46,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:44:46,531 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:44:46,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:44:46,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:44:46,532 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:44:46,532 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:44:46,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:44:46,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:44:46,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:44:46,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:44:46,533 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:44:46,533 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:44:46,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:44:46,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:44:46,534 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:44:46,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:44:46,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:44:46,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:44:46,584 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:44:46,584 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:44:46,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-02 13:44:46,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cd6ee1a/534bd8bf4e5b4b57be620411252ae5a1/FLAGf444b473c [2019-10-02 13:44:47,345 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:44:47,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product33.cil.c [2019-10-02 13:44:47,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cd6ee1a/534bd8bf4e5b4b57be620411252ae5a1/FLAGf444b473c [2019-10-02 13:44:47,507 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21cd6ee1a/534bd8bf4e5b4b57be620411252ae5a1 [2019-10-02 13:44:47,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:44:47,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:44:47,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:44:47,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:44:47,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:44:47,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:44:47" (1/1) ... [2019-10-02 13:44:47,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@218b528e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:47, skipping insertion in model container [2019-10-02 13:44:47,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:44:47" (1/1) ... [2019-10-02 13:44:47,534 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:44:47,615 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:44:48,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:44:48,479 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:44:48,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:44:48,745 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:44:48,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48 WrapperNode [2019-10-02 13:44:48,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:44:48,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:44:48,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:44:48,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:44:48,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... [2019-10-02 13:44:48,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:44:48,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:44:48,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:44:48,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:44:48,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:44:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:44:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:44:49,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:44:49,074 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:44:49,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:44:49,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:44:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:44:49,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:44:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:44:49,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:44:49,081 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:44:49,081 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:44:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:44:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:44:49,084 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-02 13:44:49,085 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:44:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-02 13:44:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:44:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:44:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:44:49,086 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:44:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:44:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-02 13:44:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:44:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-02 13:44:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:44:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:44:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:44:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:44:49,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:44:49,091 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:44:49,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:44:49,093 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:44:49,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-02 13:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-02 13:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:44:49,095 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:44:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:44:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:44:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:44:49,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:44:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:44:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:44:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:44:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:44:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:44:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:44:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:44:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:44:49,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:44:49,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-02 13:44:49,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-02 13:44:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:44:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:44:49,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:44:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:44:49,104 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:44:49,104 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:44:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:44:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:44:49,105 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:44:49,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:44:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:44:49,107 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:44:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:44:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:44:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:44:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:44:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:44:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:44:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:44:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:44:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:44:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:44:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:44:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:44:49,110 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:44:49,111 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:44:49,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:44:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:44:49,119 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:44:49,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:44:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:44:49,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:44:49,127 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:44:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:44:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:44:49,128 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:44:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:44:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:44:49,129 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:44:49,130 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:44:49,131 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:44:49,132 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:44:49,133 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-02 13:44:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-02 13:44:49,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:44:49,136 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:44:49,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:44:49,138 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:44:49,139 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:44:49,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:44:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:44:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:44:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:44:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:44:49,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:44:49,142 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:44:49,143 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:44:49,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:44:51,507 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:44:51,507 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:44:51,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:44:51 BoogieIcfgContainer [2019-10-02 13:44:51,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:44:51,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:44:51,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:44:51,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:44:51,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:44:47" (1/3) ... [2019-10-02 13:44:51,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bdb12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:44:51, skipping insertion in model container [2019-10-02 13:44:51,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:44:48" (2/3) ... [2019-10-02 13:44:51,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bdb12b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:44:51, skipping insertion in model container [2019-10-02 13:44:51,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:44:51" (3/3) ... [2019-10-02 13:44:51,520 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c [2019-10-02 13:44:51,531 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:44:51,547 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:44:51,564 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:44:51,609 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:44:51,609 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:44:51,610 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:44:51,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:44:51,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:44:51,614 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:44:51,614 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:44:51,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:44:51,614 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:44:51,658 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-02 13:44:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-02 13:44:51,694 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:51,696 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:51,698 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:51,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:51,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1571971609, now seen corresponding path program 1 times [2019-10-02 13:44:51,707 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:51,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:51,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:51,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:51,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:52,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:52,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:44:52,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:44:52,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:44:52,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:44:52,467 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-02 13:44:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:52,570 INFO L93 Difference]: Finished difference Result 927 states and 1217 transitions. [2019-10-02 13:44:52,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:44:52,572 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-02 13:44:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:52,606 INFO L225 Difference]: With dead ends: 927 [2019-10-02 13:44:52,606 INFO L226 Difference]: Without dead ends: 575 [2019-10-02 13:44:52,614 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:44:52,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2019-10-02 13:44:52,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2019-10-02 13:44:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2019-10-02 13:44:52,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 759 transitions. [2019-10-02 13:44:52,736 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 759 transitions. Word has length 189 [2019-10-02 13:44:52,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:52,738 INFO L475 AbstractCegarLoop]: Abstraction has 575 states and 759 transitions. [2019-10-02 13:44:52,739 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:44:52,739 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 759 transitions. [2019-10-02 13:44:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-02 13:44:52,750 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:52,751 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:52,751 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:52,752 INFO L82 PathProgramCache]: Analyzing trace with hash -84280545, now seen corresponding path program 1 times [2019-10-02 13:44:52,752 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:52,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:52,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:52,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:52,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:52,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:53,096 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:53,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:53,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:53,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:53,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:53,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,108 INFO L87 Difference]: Start difference. First operand 575 states and 759 transitions. Second operand 3 states. [2019-10-02 13:44:53,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:53,202 INFO L93 Difference]: Finished difference Result 910 states and 1184 transitions. [2019-10-02 13:44:53,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:53,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-02 13:44:53,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:53,213 INFO L225 Difference]: With dead ends: 910 [2019-10-02 13:44:53,213 INFO L226 Difference]: Without dead ends: 578 [2019-10-02 13:44:53,226 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-02 13:44:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 577. [2019-10-02 13:44:53,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-02 13:44:53,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 761 transitions. [2019-10-02 13:44:53,271 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 761 transitions. Word has length 190 [2019-10-02 13:44:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:53,272 INFO L475 AbstractCegarLoop]: Abstraction has 577 states and 761 transitions. [2019-10-02 13:44:53,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 761 transitions. [2019-10-02 13:44:53,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-02 13:44:53,276 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:53,277 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:53,277 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:53,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:53,277 INFO L82 PathProgramCache]: Analyzing trace with hash 364513166, now seen corresponding path program 1 times [2019-10-02 13:44:53,277 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:53,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:53,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:53,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:53,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:53,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:53,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:53,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:53,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,450 INFO L87 Difference]: Start difference. First operand 577 states and 761 transitions. Second operand 3 states. [2019-10-02 13:44:53,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:53,503 INFO L93 Difference]: Finished difference Result 1132 states and 1523 transitions. [2019-10-02 13:44:53,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:53,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2019-10-02 13:44:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:53,513 INFO L225 Difference]: With dead ends: 1132 [2019-10-02 13:44:53,513 INFO L226 Difference]: Without dead ends: 620 [2019-10-02 13:44:53,516 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2019-10-02 13:44:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 619. [2019-10-02 13:44:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-02 13:44:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 833 transitions. [2019-10-02 13:44:53,556 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 833 transitions. Word has length 202 [2019-10-02 13:44:53,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:53,557 INFO L475 AbstractCegarLoop]: Abstraction has 619 states and 833 transitions. [2019-10-02 13:44:53,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:53,557 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 833 transitions. [2019-10-02 13:44:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-02 13:44:53,564 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:53,565 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:53,565 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:53,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1378845606, now seen corresponding path program 1 times [2019-10-02 13:44:53,566 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:53,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:53,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:53,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:53,798 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:53,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:53,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:53,799 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:53,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:53,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,800 INFO L87 Difference]: Start difference. First operand 619 states and 833 transitions. Second operand 3 states. [2019-10-02 13:44:53,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:53,842 INFO L93 Difference]: Finished difference Result 1255 states and 1734 transitions. [2019-10-02 13:44:53,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:53,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2019-10-02 13:44:53,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:53,849 INFO L225 Difference]: With dead ends: 1255 [2019-10-02 13:44:53,849 INFO L226 Difference]: Without dead ends: 701 [2019-10-02 13:44:53,852 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:53,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2019-10-02 13:44:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 700. [2019-10-02 13:44:53,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-02 13:44:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 971 transitions. [2019-10-02 13:44:53,887 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 971 transitions. Word has length 203 [2019-10-02 13:44:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:53,888 INFO L475 AbstractCegarLoop]: Abstraction has 700 states and 971 transitions. [2019-10-02 13:44:53,888 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 971 transitions. [2019-10-02 13:44:53,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-02 13:44:53,892 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:53,892 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:53,893 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:53,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:53,893 INFO L82 PathProgramCache]: Analyzing trace with hash 402895277, now seen corresponding path program 1 times [2019-10-02 13:44:53,893 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:53,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:53,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:53,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:54,198 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:54,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:44:54,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:44:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:44:54,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:44:54,200 INFO L87 Difference]: Start difference. First operand 700 states and 971 transitions. Second operand 11 states. [2019-10-02 13:45:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:00,591 INFO L93 Difference]: Finished difference Result 3376 states and 4520 transitions. [2019-10-02 13:45:00,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-02 13:45:00,592 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-02 13:45:00,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:00,612 INFO L225 Difference]: With dead ends: 3376 [2019-10-02 13:45:00,612 INFO L226 Difference]: Without dead ends: 2603 [2019-10-02 13:45:00,619 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-02 13:45:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2019-10-02 13:45:00,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2588. [2019-10-02 13:45:00,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2588 states. [2019-10-02 13:45:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 3416 transitions. [2019-10-02 13:45:00,784 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 3416 transitions. Word has length 206 [2019-10-02 13:45:00,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:00,786 INFO L475 AbstractCegarLoop]: Abstraction has 2588 states and 3416 transitions. [2019-10-02 13:45:00,786 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:45:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 3416 transitions. [2019-10-02 13:45:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-02 13:45:00,792 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:00,792 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:00,792 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:00,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:00,793 INFO L82 PathProgramCache]: Analyzing trace with hash 932962740, now seen corresponding path program 1 times [2019-10-02 13:45:00,793 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:00,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:00,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:00,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:00,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:01,213 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:45:01,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:01,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 13:45:01,214 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 13:45:01,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 13:45:01,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-02 13:45:01,215 INFO L87 Difference]: Start difference. First operand 2588 states and 3416 transitions. Second operand 18 states. [2019-10-02 13:45:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:01,729 INFO L93 Difference]: Finished difference Result 4563 states and 5993 transitions. [2019-10-02 13:45:01,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 13:45:01,730 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 207 [2019-10-02 13:45:01,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:01,746 INFO L225 Difference]: With dead ends: 4563 [2019-10-02 13:45:01,746 INFO L226 Difference]: Without dead ends: 2087 [2019-10-02 13:45:01,754 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:45:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2019-10-02 13:45:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2047. [2019-10-02 13:45:01,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2047 states. [2019-10-02 13:45:01,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2047 states to 2047 states and 2703 transitions. [2019-10-02 13:45:01,863 INFO L78 Accepts]: Start accepts. Automaton has 2047 states and 2703 transitions. Word has length 207 [2019-10-02 13:45:01,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:01,864 INFO L475 AbstractCegarLoop]: Abstraction has 2047 states and 2703 transitions. [2019-10-02 13:45:01,864 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 13:45:01,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2047 states and 2703 transitions. [2019-10-02 13:45:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-02 13:45:01,869 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:01,869 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:01,869 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:01,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1982112620, now seen corresponding path program 1 times [2019-10-02 13:45:01,870 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:01,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:01,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:01,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:01,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:45:02,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:02,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 13:45:02,088 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 13:45:02,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 13:45:02,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:45:02,089 INFO L87 Difference]: Start difference. First operand 2047 states and 2703 transitions. Second operand 6 states. [2019-10-02 13:45:02,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:02,871 INFO L93 Difference]: Finished difference Result 5696 states and 7493 transitions. [2019-10-02 13:45:02,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:45:02,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-02 13:45:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:02,897 INFO L225 Difference]: With dead ends: 5696 [2019-10-02 13:45:02,897 INFO L226 Difference]: Without dead ends: 4085 [2019-10-02 13:45:02,906 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 13:45:02,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2019-10-02 13:45:03,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 4014. [2019-10-02 13:45:03,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4014 states. [2019-10-02 13:45:03,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4014 states to 4014 states and 5337 transitions. [2019-10-02 13:45:03,132 INFO L78 Accepts]: Start accepts. Automaton has 4014 states and 5337 transitions. Word has length 216 [2019-10-02 13:45:03,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:03,134 INFO L475 AbstractCegarLoop]: Abstraction has 4014 states and 5337 transitions. [2019-10-02 13:45:03,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 13:45:03,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4014 states and 5337 transitions. [2019-10-02 13:45:03,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-02 13:45:03,142 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:03,142 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:03,142 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:03,143 INFO L82 PathProgramCache]: Analyzing trace with hash -824209956, now seen corresponding path program 1 times [2019-10-02 13:45:03,143 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:03,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:03,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:03,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:03,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:45:03,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:03,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:45:03,381 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:45:03,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:45:03,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:45:03,382 INFO L87 Difference]: Start difference. First operand 4014 states and 5337 transitions. Second operand 11 states. [2019-10-02 13:45:03,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:03,931 INFO L93 Difference]: Finished difference Result 7259 states and 9498 transitions. [2019-10-02 13:45:03,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 13:45:03,931 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2019-10-02 13:45:03,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:03,955 INFO L225 Difference]: With dead ends: 7259 [2019-10-02 13:45:03,955 INFO L226 Difference]: Without dead ends: 4032 [2019-10-02 13:45:03,965 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:45:03,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2019-10-02 13:45:04,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 4002. [2019-10-02 13:45:04,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4002 states. [2019-10-02 13:45:04,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 5311 transitions. [2019-10-02 13:45:04,166 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 5311 transitions. Word has length 217 [2019-10-02 13:45:04,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:04,167 INFO L475 AbstractCegarLoop]: Abstraction has 4002 states and 5311 transitions. [2019-10-02 13:45:04,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:45:04,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 5311 transitions. [2019-10-02 13:45:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-02 13:45:04,177 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:04,177 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:04,178 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:04,178 INFO L82 PathProgramCache]: Analyzing trace with hash -237433837, now seen corresponding path program 1 times [2019-10-02 13:45:04,178 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:04,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:04,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:04,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:04,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:04,365 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:45:04,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:04,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:45:04,367 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:45:04,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:45:04,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:45:04,367 INFO L87 Difference]: Start difference. First operand 4002 states and 5311 transitions. Second operand 5 states. [2019-10-02 13:45:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:06,034 INFO L93 Difference]: Finished difference Result 13897 states and 18362 transitions. [2019-10-02 13:45:06,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 13:45:06,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-02 13:45:06,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:06,095 INFO L225 Difference]: With dead ends: 13897 [2019-10-02 13:45:06,095 INFO L226 Difference]: Without dead ends: 9442 [2019-10-02 13:45:06,112 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:45:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2019-10-02 13:45:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9162. [2019-10-02 13:45:06,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9162 states. [2019-10-02 13:45:06,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9162 states to 9162 states and 12207 transitions. [2019-10-02 13:45:06,517 INFO L78 Accepts]: Start accepts. Automaton has 9162 states and 12207 transitions. Word has length 217 [2019-10-02 13:45:06,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:06,518 INFO L475 AbstractCegarLoop]: Abstraction has 9162 states and 12207 transitions. [2019-10-02 13:45:06,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:45:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 9162 states and 12207 transitions. [2019-10-02 13:45:06,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-02 13:45:06,534 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:06,535 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:06,535 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:06,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:06,536 INFO L82 PathProgramCache]: Analyzing trace with hash -111913891, now seen corresponding path program 1 times [2019-10-02 13:45:06,536 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:06,536 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:06,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:06,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:06,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:06,729 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:45:06,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:06,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:45:06,730 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:45:06,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:45:06,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:06,731 INFO L87 Difference]: Start difference. First operand 9162 states and 12207 transitions. Second operand 3 states. [2019-10-02 13:45:07,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:07,121 INFO L93 Difference]: Finished difference Result 18887 states and 25507 transitions. [2019-10-02 13:45:07,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:45:07,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-02 13:45:07,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:07,182 INFO L225 Difference]: With dead ends: 18887 [2019-10-02 13:45:07,183 INFO L226 Difference]: Without dead ends: 9790 [2019-10-02 13:45:07,211 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:07,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9790 states. [2019-10-02 13:45:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9790 to 9786. [2019-10-02 13:45:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9786 states. [2019-10-02 13:45:07,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9786 states to 9786 states and 13353 transitions. [2019-10-02 13:45:07,622 INFO L78 Accepts]: Start accepts. Automaton has 9786 states and 13353 transitions. Word has length 238 [2019-10-02 13:45:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:07,624 INFO L475 AbstractCegarLoop]: Abstraction has 9786 states and 13353 transitions. [2019-10-02 13:45:07,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:45:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 9786 states and 13353 transitions. [2019-10-02 13:45:07,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-02 13:45:07,643 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:07,644 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:07,644 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:07,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:07,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1192037515, now seen corresponding path program 1 times [2019-10-02 13:45:07,645 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:07,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:07,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:07,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:07,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:07,880 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:07,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:07,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:45:07,881 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:45:07,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:45:07,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:45:07,882 INFO L87 Difference]: Start difference. First operand 9786 states and 13353 transitions. Second operand 8 states. [2019-10-02 13:45:13,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:13,417 INFO L93 Difference]: Finished difference Result 29724 states and 42049 transitions. [2019-10-02 13:45:13,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:45:13,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2019-10-02 13:45:13,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:13,527 INFO L225 Difference]: With dead ends: 29724 [2019-10-02 13:45:13,528 INFO L226 Difference]: Without dead ends: 20003 [2019-10-02 13:45:13,562 INFO L640 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 [2019-10-02 13:45:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20003 states. [2019-10-02 13:45:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20003 to 12038. [2019-10-02 13:45:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12038 states. [2019-10-02 13:45:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12038 states to 12038 states and 17849 transitions. [2019-10-02 13:45:14,418 INFO L78 Accepts]: Start accepts. Automaton has 12038 states and 17849 transitions. Word has length 254 [2019-10-02 13:45:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:14,418 INFO L475 AbstractCegarLoop]: Abstraction has 12038 states and 17849 transitions. [2019-10-02 13:45:14,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:45:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 12038 states and 17849 transitions. [2019-10-02 13:45:14,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-10-02 13:45:14,459 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:14,459 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:14,459 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:14,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:14,460 INFO L82 PathProgramCache]: Analyzing trace with hash -554622569, now seen corresponding path program 1 times [2019-10-02 13:45:14,460 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:14,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:14,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:14,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:14,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:14,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:45:14,693 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:45:14,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:45:14,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:45:14,694 INFO L87 Difference]: Start difference. First operand 12038 states and 17849 transitions. Second operand 8 states. [2019-10-02 13:45:20,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:20,315 INFO L93 Difference]: Finished difference Result 37016 states and 57785 transitions. [2019-10-02 13:45:20,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:45:20,315 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2019-10-02 13:45:20,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:20,437 INFO L225 Difference]: With dead ends: 37016 [2019-10-02 13:45:20,437 INFO L226 Difference]: Without dead ends: 25043 [2019-10-02 13:45:20,475 INFO L640 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 [2019-10-02 13:45:20,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25043 states. [2019-10-02 13:45:21,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25043 to 16662. [2019-10-02 13:45:21,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16662 states. [2019-10-02 13:45:21,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16662 states to 16662 states and 27681 transitions. [2019-10-02 13:45:21,496 INFO L78 Accepts]: Start accepts. Automaton has 16662 states and 27681 transitions. Word has length 255 [2019-10-02 13:45:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:21,497 INFO L475 AbstractCegarLoop]: Abstraction has 16662 states and 27681 transitions. [2019-10-02 13:45:21,497 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:45:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 16662 states and 27681 transitions. [2019-10-02 13:45:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-02 13:45:21,587 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:21,587 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:21,588 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:21,588 INFO L82 PathProgramCache]: Analyzing trace with hash 846449969, now seen corresponding path program 1 times [2019-10-02 13:45:21,588 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:21,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:21,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:21,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:21,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:45:21,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:21,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:45:21,971 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:45:21,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:45:21,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:45:21,972 INFO L87 Difference]: Start difference. First operand 16662 states and 27681 transitions. Second operand 8 states. [2019-10-02 13:45:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:27,242 INFO L93 Difference]: Finished difference Result 51872 states and 91733 transitions. [2019-10-02 13:45:27,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:45:27,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-02 13:45:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:27,459 INFO L225 Difference]: With dead ends: 51872 [2019-10-02 13:45:27,459 INFO L226 Difference]: Without dead ends: 35275 [2019-10-02 13:45:27,529 INFO L640 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 [2019-10-02 13:45:27,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35275 states. [2019-10-02 13:45:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35275 to 26038. [2019-10-02 13:45:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26038 states. [2019-10-02 13:45:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26038 states to 26038 states and 48885 transitions. [2019-10-02 13:45:30,047 INFO L78 Accepts]: Start accepts. Automaton has 26038 states and 48885 transitions. Word has length 241 [2019-10-02 13:45:30,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:30,048 INFO L475 AbstractCegarLoop]: Abstraction has 26038 states and 48885 transitions. [2019-10-02 13:45:30,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:45:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 26038 states and 48885 transitions. [2019-10-02 13:45:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-02 13:45:30,299 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:30,300 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:30,300 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:30,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1917598313, now seen corresponding path program 1 times [2019-10-02 13:45:30,301 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:30,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:30,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:30,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:30,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:30,554 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:45:30,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:30,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:45:30,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:45:30,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:45:30,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:45:30,557 INFO L87 Difference]: Start difference. First operand 26038 states and 48885 transitions. Second operand 11 states. [2019-10-02 13:45:32,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:32,351 INFO L93 Difference]: Finished difference Result 37059 states and 63232 transitions. [2019-10-02 13:45:32,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:45:32,352 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2019-10-02 13:45:32,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:32,508 INFO L225 Difference]: With dead ends: 37059 [2019-10-02 13:45:32,509 INFO L226 Difference]: Without dead ends: 32856 [2019-10-02 13:45:32,533 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:45:32,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32856 states. [2019-10-02 13:45:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32856 to 32546. [2019-10-02 13:45:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32546 states. [2019-10-02 13:45:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32546 states to 32546 states and 57413 transitions. [2019-10-02 13:45:35,337 INFO L78 Accepts]: Start accepts. Automaton has 32546 states and 57413 transitions. Word has length 245 [2019-10-02 13:45:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:35,338 INFO L475 AbstractCegarLoop]: Abstraction has 32546 states and 57413 transitions. [2019-10-02 13:45:35,338 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:45:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 32546 states and 57413 transitions. [2019-10-02 13:45:35,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-10-02 13:45:35,429 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:35,429 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:35,430 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:35,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:35,430 INFO L82 PathProgramCache]: Analyzing trace with hash -99357324, now seen corresponding path program 1 times [2019-10-02 13:45:35,430 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:35,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:35,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:35,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:35,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:35,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:35,610 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:35,610 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:45:35,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:45:35,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:45:35,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:35,612 INFO L87 Difference]: Start difference. First operand 32546 states and 57413 transitions. Second operand 3 states. [2019-10-02 13:45:36,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:36,969 INFO L93 Difference]: Finished difference Result 74631 states and 138309 transitions. [2019-10-02 13:45:36,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:45:36,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 262 [2019-10-02 13:45:36,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:37,230 INFO L225 Difference]: With dead ends: 74631 [2019-10-02 13:45:37,230 INFO L226 Difference]: Without dead ends: 42150 [2019-10-02 13:45:37,352 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42150 states. [2019-10-02 13:45:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42150 to 42146. [2019-10-02 13:45:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42146 states. [2019-10-02 13:45:40,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42146 states to 42146 states and 80709 transitions. [2019-10-02 13:45:40,898 INFO L78 Accepts]: Start accepts. Automaton has 42146 states and 80709 transitions. Word has length 262 [2019-10-02 13:45:40,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:40,899 INFO L475 AbstractCegarLoop]: Abstraction has 42146 states and 80709 transitions. [2019-10-02 13:45:40,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:45:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 42146 states and 80709 transitions. [2019-10-02 13:45:41,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-02 13:45:41,025 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:41,025 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:41,025 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:41,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1349604677, now seen corresponding path program 1 times [2019-10-02 13:45:41,026 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:41,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:41,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:41,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:41,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-02 13:45:42,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:45:42,767 INFO L224 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 [2019-10-02 13:45:42,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:43,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:45:43,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:45:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream closed [2019-10-02 13:45:43,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:45:43,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [49] total 55 [2019-10-02 13:45:43,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-10-02 13:45:43,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-10-02 13:45:43,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2846, Unknown=0, NotChecked=0, Total=2970 [2019-10-02 13:45:43,914 INFO L87 Difference]: Start difference. First operand 42146 states and 80709 transitions. Second operand 55 states. [2019-10-02 13:46:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:46:33,836 INFO L93 Difference]: Finished difference Result 231993 states and 441450 transitions. [2019-10-02 13:46:33,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2019-10-02 13:46:33,837 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 246 [2019-10-02 13:46:33,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:46:35,147 INFO L225 Difference]: With dead ends: 231993 [2019-10-02 13:46:35,147 INFO L226 Difference]: Without dead ends: 189876 [2019-10-02 13:46:35,334 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 264 SyntacticMatches, 1 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10937 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=1468, Invalid=36752, Unknown=0, NotChecked=0, Total=38220 [2019-10-02 13:46:35,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189876 states. [2019-10-02 13:46:52,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189876 to 187403. [2019-10-02 13:46:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187403 states. [2019-10-02 13:46:54,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187403 states to 187403 states and 346463 transitions. [2019-10-02 13:46:54,298 INFO L78 Accepts]: Start accepts. Automaton has 187403 states and 346463 transitions. Word has length 246 [2019-10-02 13:46:54,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:46:54,298 INFO L475 AbstractCegarLoop]: Abstraction has 187403 states and 346463 transitions. [2019-10-02 13:46:54,298 INFO L476 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-10-02 13:46:54,299 INFO L276 IsEmpty]: Start isEmpty. Operand 187403 states and 346463 transitions. [2019-10-02 13:46:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2019-10-02 13:46:54,976 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:46:54,976 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-02 13:46:54,976 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:46:54,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:46:54,977 INFO L82 PathProgramCache]: Analyzing trace with hash 270393994, now seen corresponding path program 1 times [2019-10-02 13:46:54,977 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:46:54,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:46:54,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:54,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:54,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:56,944 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-02 13:46:56,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:46:56,945 INFO L224 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 13:46:57,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:57,538 INFO L256 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:46:57,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:46:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-02 13:46:57,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:46:57,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [61] total 65 [2019-10-02 13:46:57,824 INFO L454 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-10-02 13:46:57,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-10-02 13:46:57,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=4017, Unknown=0, NotChecked=0, Total=4160 [2019-10-02 13:46:57,826 INFO L87 Difference]: Start difference. First operand 187403 states and 346463 transitions. Second operand 65 states. [2019-10-02 13:47:06,604 WARN L191 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-10-02 13:48:42,507 WARN L191 SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-10-02 13:50:08,108 WARN L191 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2019-10-02 13:52:05,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:52:05,777 INFO L93 Difference]: Finished difference Result 1526162 states and 2543718 transitions. [2019-10-02 13:52:05,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 963 states. [2019-10-02 13:52:05,778 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 250 [2019-10-02 13:52:05,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:52:11,429 INFO L225 Difference]: With dead ends: 1526162 [2019-10-02 13:52:11,430 INFO L226 Difference]: Without dead ends: 1321109 [2019-10-02 13:52:13,652 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1418 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 1023 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463108 ImplicationChecksByTransitivity, 71.7s TimeCoverageRelationStatistics Valid=31032, Invalid=1018568, Unknown=0, NotChecked=0, Total=1049600 [2019-10-02 13:52:14,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321109 states.