java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:01,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:01,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:01,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:01,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:01,932 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:01,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:01,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:01,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:01,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:01,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:01,950 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:01,950 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:01,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:01,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:01,955 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:01,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:01,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:01,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:01,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:01,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:01,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:01,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:01,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:01,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:01,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:01,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:01,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:01,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:01,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:01,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:01,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:01,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:01,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:01,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:01,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:01,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:01,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:01,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:01,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:01,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:01,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:02,015 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:02,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:02,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:02,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:02,017 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:02,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:02,018 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:02,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:02,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:02,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:02,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:02,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:02,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:02,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:02,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:02,021 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:02,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:02,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:02,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:02,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:02,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:02,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:02,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:02,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:02,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:02,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:02,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:02,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:02,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:13:02,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:02,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:02,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:02,310 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:02,310 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:02,311 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2019-10-15 01:13:02,373 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de9a25382/15facb06fb08472ebec1c6fd204583a4/FLAG32c8ded18 [2019-10-15 01:13:02,918 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:02,919 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2019-10-15 01:13:02,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de9a25382/15facb06fb08472ebec1c6fd204583a4/FLAG32c8ded18 [2019-10-15 01:13:03,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de9a25382/15facb06fb08472ebec1c6fd204583a4 [2019-10-15 01:13:03,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:03,224 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:03,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:03,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:03,229 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:03,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:03,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@711b24de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:03, skipping insertion in model container [2019-10-15 01:13:03,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:03" (1/1) ... [2019-10-15 01:13:03,239 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:03,309 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:04,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:04,072 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:04,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:04,265 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:04,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04 WrapperNode [2019-10-15 01:13:04,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:04,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:04,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:04,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:04,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... [2019-10-15 01:13:04,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:04,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:04,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:04,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:04,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:13:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:04,567 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:13:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:04,610 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:04,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:06,811 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:06,812 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:06,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:06 BoogieIcfgContainer [2019-10-15 01:13:06,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:06,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:06,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:06,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:06,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:03" (1/3) ... [2019-10-15 01:13:06,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab171a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:06, skipping insertion in model container [2019-10-15 01:13:06,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:04" (2/3) ... [2019-10-15 01:13:06,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65ab171a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:06, skipping insertion in model container [2019-10-15 01:13:06,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:06" (3/3) ... [2019-10-15 01:13:06,822 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.c [2019-10-15 01:13:06,832 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:06,843 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:06,855 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:06,897 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:06,897 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:06,897 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:06,897 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:06,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:06,898 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:06,898 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:06,898 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states. [2019-10-15 01:13:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 01:13:06,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:06,974 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:06,977 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:06,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:06,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2061337628, now seen corresponding path program 1 times [2019-10-15 01:13:06,996 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:06,996 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832485692] [2019-10-15 01:13:06,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,997 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:07,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832485692] [2019-10-15 01:13:07,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:07,626 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:07,626 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388348015] [2019-10-15 01:13:07,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:07,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:07,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:07,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:07,649 INFO L87 Difference]: Start difference. First operand 517 states. Second operand 2 states. [2019-10-15 01:13:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:07,714 INFO L93 Difference]: Finished difference Result 687 states and 950 transitions. [2019-10-15 01:13:07,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:07,716 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 154 [2019-10-15 01:13:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:07,738 INFO L225 Difference]: With dead ends: 687 [2019-10-15 01:13:07,738 INFO L226 Difference]: Without dead ends: 466 [2019-10-15 01:13:07,745 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:07,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-15 01:13:07,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2019-10-15 01:13:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2019-10-15 01:13:07,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 647 transitions. [2019-10-15 01:13:07,860 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 647 transitions. Word has length 154 [2019-10-15 01:13:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:07,864 INFO L462 AbstractCegarLoop]: Abstraction has 466 states and 647 transitions. [2019-10-15 01:13:07,864 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:07,864 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 647 transitions. [2019-10-15 01:13:07,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 01:13:07,878 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:07,879 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:07,879 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:07,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:07,881 INFO L82 PathProgramCache]: Analyzing trace with hash -963846558, now seen corresponding path program 1 times [2019-10-15 01:13:07,881 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:07,881 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738401992] [2019-10-15 01:13:07,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,882 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:07,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:08,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738401992] [2019-10-15 01:13:08,174 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:08,174 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:08,174 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152350900] [2019-10-15 01:13:08,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:08,183 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:08,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:08,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:08,183 INFO L87 Difference]: Start difference. First operand 466 states and 647 transitions. Second operand 3 states. [2019-10-15 01:13:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:08,251 INFO L93 Difference]: Finished difference Result 670 states and 916 transitions. [2019-10-15 01:13:08,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:08,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 01:13:08,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:08,262 INFO L225 Difference]: With dead ends: 670 [2019-10-15 01:13:08,262 INFO L226 Difference]: Without dead ends: 469 [2019-10-15 01:13:08,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:08,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-10-15 01:13:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 468. [2019-10-15 01:13:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-10-15 01:13:08,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 649 transitions. [2019-10-15 01:13:08,321 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 649 transitions. Word has length 155 [2019-10-15 01:13:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:08,322 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 649 transitions. [2019-10-15 01:13:08,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 649 transitions. [2019-10-15 01:13:08,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 01:13:08,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:08,327 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:08,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:08,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1639165674, now seen corresponding path program 1 times [2019-10-15 01:13:08,328 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:08,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485604612] [2019-10-15 01:13:08,328 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,329 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:08,545 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:08,546 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485604612] [2019-10-15 01:13:08,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:08,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:08,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594640677] [2019-10-15 01:13:08,548 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:08,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:08,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:08,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:08,551 INFO L87 Difference]: Start difference. First operand 468 states and 649 transitions. Second operand 3 states. [2019-10-15 01:13:08,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:08,595 INFO L93 Difference]: Finished difference Result 912 states and 1296 transitions. [2019-10-15 01:13:08,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:08,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 01:13:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:08,600 INFO L225 Difference]: With dead ends: 912 [2019-10-15 01:13:08,600 INFO L226 Difference]: Without dead ends: 509 [2019-10-15 01:13:08,602 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:08,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2019-10-15 01:13:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 508. [2019-10-15 01:13:08,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 508 states. [2019-10-15 01:13:08,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 718 transitions. [2019-10-15 01:13:08,627 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 718 transitions. Word has length 161 [2019-10-15 01:13:08,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:08,628 INFO L462 AbstractCegarLoop]: Abstraction has 508 states and 718 transitions. [2019-10-15 01:13:08,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:08,628 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 718 transitions. [2019-10-15 01:13:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 01:13:08,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:08,635 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:08,636 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:08,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:08,636 INFO L82 PathProgramCache]: Analyzing trace with hash 511993586, now seen corresponding path program 1 times [2019-10-15 01:13:08,637 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:08,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905686488] [2019-10-15 01:13:08,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:09,660 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905686488] [2019-10-15 01:13:09,661 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:09,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-10-15 01:13:09,661 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857984654] [2019-10-15 01:13:09,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-10-15 01:13:09,662 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-10-15 01:13:09,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=858, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:13:09,664 INFO L87 Difference]: Start difference. First operand 508 states and 718 transitions. Second operand 31 states. [2019-10-15 01:13:13,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:13,856 INFO L93 Difference]: Finished difference Result 1462 states and 2108 transitions. [2019-10-15 01:13:13,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:13:13,857 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 162 [2019-10-15 01:13:13,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:13,865 INFO L225 Difference]: With dead ends: 1462 [2019-10-15 01:13:13,865 INFO L226 Difference]: Without dead ends: 990 [2019-10-15 01:13:13,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=252, Invalid=3054, Unknown=0, NotChecked=0, Total=3306 [2019-10-15 01:13:13,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2019-10-15 01:13:13,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 764. [2019-10-15 01:13:13,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2019-10-15 01:13:13,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1129 transitions. [2019-10-15 01:13:13,919 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1129 transitions. Word has length 162 [2019-10-15 01:13:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:13,919 INFO L462 AbstractCegarLoop]: Abstraction has 764 states and 1129 transitions. [2019-10-15 01:13:13,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-10-15 01:13:13,919 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1129 transitions. [2019-10-15 01:13:13,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 01:13:13,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:13,964 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:13,964 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:13,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:13,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1860386113, now seen corresponding path program 1 times [2019-10-15 01:13:13,965 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:13,968 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936212451] [2019-10-15 01:13:13,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,968 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:13,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:14,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936212451] [2019-10-15 01:13:14,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603180565] [2019-10-15 01:13:14,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:13:15,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:13:15,534 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:15,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:15,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:13:16,057 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:16,058 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:13:16,058 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [31, 7] total 39 [2019-10-15 01:13:16,058 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540591798] [2019-10-15 01:13:16,059 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:16,059 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:16,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2019-10-15 01:13:16,061 INFO L87 Difference]: Start difference. First operand 764 states and 1129 transitions. Second operand 7 states. [2019-10-15 01:13:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,971 INFO L93 Difference]: Finished difference Result 1481 states and 2211 transitions. [2019-10-15 01:13:16,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:16,972 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 163 [2019-10-15 01:13:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,977 INFO L225 Difference]: With dead ends: 1481 [2019-10-15 01:13:16,977 INFO L226 Difference]: Without dead ends: 768 [2019-10-15 01:13:16,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 318 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=1512, Unknown=0, NotChecked=0, Total=1640 [2019-10-15 01:13:16,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-10-15 01:13:17,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2019-10-15 01:13:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2019-10-15 01:13:17,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1134 transitions. [2019-10-15 01:13:17,021 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1134 transitions. Word has length 163 [2019-10-15 01:13:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:17,022 INFO L462 AbstractCegarLoop]: Abstraction has 768 states and 1134 transitions. [2019-10-15 01:13:17,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1134 transitions. [2019-10-15 01:13:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:13:17,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:17,027 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:17,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:17,241 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:17,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:17,242 INFO L82 PathProgramCache]: Analyzing trace with hash 241986522, now seen corresponding path program 1 times [2019-10-15 01:13:17,243 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:17,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115031082] [2019-10-15 01:13:17,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:17,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:17,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:17,926 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:17,926 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115031082] [2019-10-15 01:13:17,926 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:17,927 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:17,927 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85678562] [2019-10-15 01:13:17,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:17,928 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:17,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:17,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:17,929 INFO L87 Difference]: Start difference. First operand 768 states and 1134 transitions. Second operand 26 states. [2019-10-15 01:13:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:25,471 INFO L93 Difference]: Finished difference Result 2316 states and 3323 transitions. [2019-10-15 01:13:25,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2019-10-15 01:13:25,472 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 164 [2019-10-15 01:13:25,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:25,485 INFO L225 Difference]: With dead ends: 2316 [2019-10-15 01:13:25,485 INFO L226 Difference]: Without dead ends: 2124 [2019-10-15 01:13:25,489 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=710, Invalid=5452, Unknown=0, NotChecked=0, Total=6162 [2019-10-15 01:13:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2124 states. [2019-10-15 01:13:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2124 to 1676. [2019-10-15 01:13:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1676 states. [2019-10-15 01:13:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2471 transitions. [2019-10-15 01:13:25,598 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2471 transitions. Word has length 164 [2019-10-15 01:13:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:25,599 INFO L462 AbstractCegarLoop]: Abstraction has 1676 states and 2471 transitions. [2019-10-15 01:13:25,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 01:13:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2471 transitions. [2019-10-15 01:13:25,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:25,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:25,606 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:25,606 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:25,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:25,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1133387103, now seen corresponding path program 1 times [2019-10-15 01:13:25,607 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:25,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328835269] [2019-10-15 01:13:25,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:25,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:13:25,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328835269] [2019-10-15 01:13:25,816 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:25,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:13:25,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720540366] [2019-10-15 01:13:25,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:13:25,818 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:25,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:13:25,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:13:25,820 INFO L87 Difference]: Start difference. First operand 1676 states and 2471 transitions. Second operand 11 states. [2019-10-15 01:13:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:26,355 INFO L93 Difference]: Finished difference Result 2340 states and 3397 transitions. [2019-10-15 01:13:26,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:26,356 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2019-10-15 01:13:26,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:26,371 INFO L225 Difference]: With dead ends: 2340 [2019-10-15 01:13:26,372 INFO L226 Difference]: Without dead ends: 1768 [2019-10-15 01:13:26,376 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:13:26,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2019-10-15 01:13:26,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1768. [2019-10-15 01:13:26,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1768 states. [2019-10-15 01:13:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1768 states to 1768 states and 2614 transitions. [2019-10-15 01:13:26,514 INFO L78 Accepts]: Start accepts. Automaton has 1768 states and 2614 transitions. Word has length 165 [2019-10-15 01:13:26,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:26,515 INFO L462 AbstractCegarLoop]: Abstraction has 1768 states and 2614 transitions. [2019-10-15 01:13:26,515 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:13:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1768 states and 2614 transitions. [2019-10-15 01:13:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:26,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:26,531 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:26,531 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:26,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:26,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1969264935, now seen corresponding path program 1 times [2019-10-15 01:13:26,532 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:26,532 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816975165] [2019-10-15 01:13:26,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:26,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:26,869 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:26,869 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816975165] [2019-10-15 01:13:26,870 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:26,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:13:26,871 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358249723] [2019-10-15 01:13:26,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:13:26,871 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:26,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:13:26,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:13:26,872 INFO L87 Difference]: Start difference. First operand 1768 states and 2614 transitions. Second operand 9 states. [2019-10-15 01:13:27,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:27,154 INFO L93 Difference]: Finished difference Result 2001 states and 2925 transitions. [2019-10-15 01:13:27,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:13:27,155 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2019-10-15 01:13:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:27,160 INFO L225 Difference]: With dead ends: 2001 [2019-10-15 01:13:27,160 INFO L226 Difference]: Without dead ends: 810 [2019-10-15 01:13:27,165 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:13:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-15 01:13:27,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 808. [2019-10-15 01:13:27,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2019-10-15 01:13:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1189 transitions. [2019-10-15 01:13:27,208 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1189 transitions. Word has length 165 [2019-10-15 01:13:27,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:27,210 INFO L462 AbstractCegarLoop]: Abstraction has 808 states and 1189 transitions. [2019-10-15 01:13:27,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:13:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1189 transitions. [2019-10-15 01:13:27,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:27,214 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:27,214 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:27,214 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:27,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:27,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1273120211, now seen corresponding path program 2 times [2019-10-15 01:13:27,216 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:27,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491992376] [2019-10-15 01:13:27,216 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:27,216 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:27,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:27,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:27,742 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:27,743 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491992376] [2019-10-15 01:13:27,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:27,743 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 01:13:27,743 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178248773] [2019-10-15 01:13:27,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 01:13:27,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:27,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 01:13:27,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:13:27,745 INFO L87 Difference]: Start difference. First operand 808 states and 1189 transitions. Second operand 24 states. [2019-10-15 01:13:34,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:34,534 INFO L93 Difference]: Finished difference Result 2483 states and 3596 transitions. [2019-10-15 01:13:34,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2019-10-15 01:13:34,535 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 165 [2019-10-15 01:13:34,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:34,549 INFO L225 Difference]: With dead ends: 2483 [2019-10-15 01:13:34,549 INFO L226 Difference]: Without dead ends: 2278 [2019-10-15 01:13:34,553 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1617 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=755, Invalid=5565, Unknown=0, NotChecked=0, Total=6320 [2019-10-15 01:13:34,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2278 states. [2019-10-15 01:13:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2278 to 1763. [2019-10-15 01:13:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2019-10-15 01:13:34,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2606 transitions. [2019-10-15 01:13:34,652 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2606 transitions. Word has length 165 [2019-10-15 01:13:34,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:34,653 INFO L462 AbstractCegarLoop]: Abstraction has 1763 states and 2606 transitions. [2019-10-15 01:13:34,653 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 01:13:34,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2606 transitions. [2019-10-15 01:13:34,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:34,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:34,661 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:34,661 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:34,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:34,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2049370828, now seen corresponding path program 2 times [2019-10-15 01:13:34,662 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:34,662 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499316582] [2019-10-15 01:13:34,662 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,662 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:34,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:34,853 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499316582] [2019-10-15 01:13:34,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:34,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:13:34,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13239091] [2019-10-15 01:13:34,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:13:34,855 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:34,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:13:34,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:13:34,856 INFO L87 Difference]: Start difference. First operand 1763 states and 2606 transitions. Second operand 7 states. [2019-10-15 01:13:35,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:35,140 INFO L93 Difference]: Finished difference Result 1996 states and 2917 transitions. [2019-10-15 01:13:35,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:13:35,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2019-10-15 01:13:35,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:35,145 INFO L225 Difference]: With dead ends: 1996 [2019-10-15 01:13:35,146 INFO L226 Difference]: Without dead ends: 810 [2019-10-15 01:13:35,150 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:13:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2019-10-15 01:13:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 808. [2019-10-15 01:13:35,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2019-10-15 01:13:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1188 transitions. [2019-10-15 01:13:35,187 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1188 transitions. Word has length 166 [2019-10-15 01:13:35,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:35,187 INFO L462 AbstractCegarLoop]: Abstraction has 808 states and 1188 transitions. [2019-10-15 01:13:35,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:13:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1188 transitions. [2019-10-15 01:13:35,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:35,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:35,192 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2019-10-15 01:13:35,192 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:35,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:35,193 INFO L82 PathProgramCache]: Analyzing trace with hash -285038254, now seen corresponding path program 3 times [2019-10-15 01:13:35,193 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:35,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678311819] [2019-10-15 01:13:35,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:35,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:35,789 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 01:13:35,789 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678311819] [2019-10-15 01:13:35,789 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:35,790 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 01:13:35,790 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49192157] [2019-10-15 01:13:35,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 01:13:35,791 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:35,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 01:13:35,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=591, Unknown=0, NotChecked=0, Total=650 [2019-10-15 01:13:35,792 INFO L87 Difference]: Start difference. First operand 808 states and 1188 transitions. Second operand 26 states.