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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:21,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:21,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:21,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:21,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:21,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:21,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:21,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:21,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:21,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:21,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:21,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:21,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:21,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:21,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:21,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:21,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:21,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:21,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:21,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:21,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:21,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:21,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:21,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:21,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:21,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:21,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:21,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:21,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:21,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:21,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:21,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:21,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:21,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:21,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:21,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:21,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:21,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:21,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:21,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:21,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:21,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:13:21,990 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:21,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:21,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:21,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:21,992 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:21,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:21,992 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:21,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:21,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:21,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:21,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:21,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:21,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:21,994 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:21,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:21,994 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:21,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:21,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:21,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:21,995 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:21,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:21,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:21,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:21,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:13:22,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:22,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:22,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:22,293 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:22,293 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:22,294 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-13 23:13:22,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06465d72/94a1509c636b41e5bdecf94c58b3b502/FLAGe9d8a8158 [2019-10-13 23:13:22,973 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:22,974 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product20.cil.c [2019-10-13 23:13:23,004 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06465d72/94a1509c636b41e5bdecf94c58b3b502/FLAGe9d8a8158 [2019-10-13 23:13:23,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d06465d72/94a1509c636b41e5bdecf94c58b3b502 [2019-10-13 23:13:23,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:23,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:23,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:23,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:23,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:23,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d23364b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:23, skipping insertion in model container [2019-10-13 23:13:23,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:23" (1/1) ... [2019-10-13 23:13:23,245 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:23,332 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:24,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:24,063 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:24,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:24,310 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:24,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24 WrapperNode [2019-10-13 23:13:24,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:24,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:24,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:24,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:24,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,475 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... [2019-10-13 23:13:24,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:24,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:24,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:24,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:24,496 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:24,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:24,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:24,573 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:24,574 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:24,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:24,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:24,577 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:24,577 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:24,577 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:13:24,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:24,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:24,582 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:24,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:24,585 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:24,586 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:24,587 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:24,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:24,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:24,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:24,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:24,592 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:24,593 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:24,594 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:24,595 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:24,596 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:24,601 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:24,602 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:24,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:24,606 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:13:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:24,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:24,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:29,381 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:29,381 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:29,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:29 BoogieIcfgContainer [2019-10-13 23:13:29,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:29,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:29,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:29,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:29,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:23" (1/3) ... [2019-10-13 23:13:29,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501f5135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:29, skipping insertion in model container [2019-10-13 23:13:29,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:24" (2/3) ... [2019-10-13 23:13:29,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501f5135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:29, skipping insertion in model container [2019-10-13 23:13:29,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:29" (3/3) ... [2019-10-13 23:13:29,392 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product20.cil.c [2019-10-13 23:13:29,402 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:29,412 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:29,424 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:29,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:29,455 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:29,455 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:29,455 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:29,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:29,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:29,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:29,456 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states. [2019-10-13 23:13:29,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-13 23:13:29,527 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:29,528 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:29,530 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:29,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:29,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1053414408, now seen corresponding path program 1 times [2019-10-13 23:13:29,590 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:29,590 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775533027] [2019-10-13 23:13:29,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:29,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:29,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:30,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775533027] [2019-10-13 23:13:30,202 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:30,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:30,203 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98094645] [2019-10-13 23:13:30,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:30,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:30,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:30,229 INFO L87 Difference]: Start difference. First operand 389 states. Second operand 2 states. [2019-10-13 23:13:30,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:30,294 INFO L93 Difference]: Finished difference Result 518 states and 617 transitions. [2019-10-13 23:13:30,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:30,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 121 [2019-10-13 23:13:30,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:30,333 INFO L225 Difference]: With dead ends: 518 [2019-10-13 23:13:30,334 INFO L226 Difference]: Without dead ends: 341 [2019-10-13 23:13:30,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-10-13 23:13:30,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2019-10-13 23:13:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-13 23:13:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 403 transitions. [2019-10-13 23:13:30,449 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 403 transitions. Word has length 121 [2019-10-13 23:13:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:30,451 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 403 transitions. [2019-10-13 23:13:30,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:30,452 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 403 transitions. [2019-10-13 23:13:30,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-13 23:13:30,458 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:30,458 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:30,458 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1628387505, now seen corresponding path program 1 times [2019-10-13 23:13:30,459 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:30,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27973105] [2019-10-13 23:13:30,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,460 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:30,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:30,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27973105] [2019-10-13 23:13:30,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:30,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:30,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515997634] [2019-10-13 23:13:30,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:30,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:30,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:30,775 INFO L87 Difference]: Start difference. First operand 341 states and 403 transitions. Second operand 3 states. [2019-10-13 23:13:30,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:30,858 INFO L93 Difference]: Finished difference Result 503 states and 586 transitions. [2019-10-13 23:13:30,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:30,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-10-13 23:13:30,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:30,866 INFO L225 Difference]: With dead ends: 503 [2019-10-13 23:13:30,870 INFO L226 Difference]: Without dead ends: 343 [2019-10-13 23:13:30,872 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:30,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-10-13 23:13:30,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 343. [2019-10-13 23:13:30,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-13 23:13:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 405 transitions. [2019-10-13 23:13:30,920 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 405 transitions. Word has length 122 [2019-10-13 23:13:30,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:30,921 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 405 transitions. [2019-10-13 23:13:30,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:30,921 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 405 transitions. [2019-10-13 23:13:30,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:13:30,924 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:30,924 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:30,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:30,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:30,925 INFO L82 PathProgramCache]: Analyzing trace with hash 471512363, now seen corresponding path program 1 times [2019-10-13 23:13:30,925 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:30,925 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800439843] [2019-10-13 23:13:30,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,926 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:30,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:31,166 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:31,167 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800439843] [2019-10-13 23:13:31,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:31,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:31,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753046354] [2019-10-13 23:13:31,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:31,170 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:31,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:31,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,171 INFO L87 Difference]: Start difference. First operand 343 states and 405 transitions. Second operand 3 states. [2019-10-13 23:13:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:31,230 INFO L93 Difference]: Finished difference Result 670 states and 820 transitions. [2019-10-13 23:13:31,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:31,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:13:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:31,238 INFO L225 Difference]: With dead ends: 670 [2019-10-13 23:13:31,238 INFO L226 Difference]: Without dead ends: 385 [2019-10-13 23:13:31,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2019-10-13 23:13:31,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 384. [2019-10-13 23:13:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-10-13 23:13:31,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 476 transitions. [2019-10-13 23:13:31,283 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 476 transitions. Word has length 131 [2019-10-13 23:13:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:31,284 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 476 transitions. [2019-10-13 23:13:31,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:31,284 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 476 transitions. [2019-10-13 23:13:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:13:31,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:31,290 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:31,290 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:31,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:31,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2129396188, now seen corresponding path program 1 times [2019-10-13 23:13:31,291 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:31,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382414469] [2019-10-13 23:13:31,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:31,441 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:31,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382414469] [2019-10-13 23:13:31,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:31,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:31,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511128779] [2019-10-13 23:13:31,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:31,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:31,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:31,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,447 INFO L87 Difference]: Start difference. First operand 384 states and 476 transitions. Second operand 3 states. [2019-10-13 23:13:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:31,488 INFO L93 Difference]: Finished difference Result 790 states and 1028 transitions. [2019-10-13 23:13:31,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:31,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-13 23:13:31,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:31,493 INFO L225 Difference]: With dead ends: 790 [2019-10-13 23:13:31,494 INFO L226 Difference]: Without dead ends: 464 [2019-10-13 23:13:31,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-13 23:13:31,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-13 23:13:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-13 23:13:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 612 transitions. [2019-10-13 23:13:31,527 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 612 transitions. Word has length 132 [2019-10-13 23:13:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:31,529 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 612 transitions. [2019-10-13 23:13:31,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 612 transitions. [2019-10-13 23:13:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 23:13:31,535 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:31,535 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:13:31,535 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:31,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:31,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1585933844, now seen corresponding path program 1 times [2019-10-13 23:13:31,536 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:31,536 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343466799] [2019-10-13 23:13:31,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,537 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:13:31,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343466799] [2019-10-13 23:13:31,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:31,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:31,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985447839] [2019-10-13 23:13:31,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:31,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:31,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:31,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,773 INFO L87 Difference]: Start difference. First operand 463 states and 612 transitions. Second operand 3 states. [2019-10-13 23:13:31,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:31,818 INFO L93 Difference]: Finished difference Result 675 states and 859 transitions. [2019-10-13 23:13:31,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:31,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-13 23:13:31,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:31,825 INFO L225 Difference]: With dead ends: 675 [2019-10-13 23:13:31,825 INFO L226 Difference]: Without dead ends: 527 [2019-10-13 23:13:31,826 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:31,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2019-10-13 23:13:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 526. [2019-10-13 23:13:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2019-10-13 23:13:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 685 transitions. [2019-10-13 23:13:31,872 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 685 transitions. Word has length 135 [2019-10-13 23:13:31,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:31,875 INFO L462 AbstractCegarLoop]: Abstraction has 526 states and 685 transitions. [2019-10-13 23:13:31,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:31,875 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 685 transitions. [2019-10-13 23:13:31,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-13 23:13:31,880 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:31,881 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:31,881 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:31,882 INFO L82 PathProgramCache]: Analyzing trace with hash -529388687, now seen corresponding path program 1 times [2019-10-13 23:13:31,882 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:31,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635398055] [2019-10-13 23:13:31,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,883 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:31,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:32,410 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:32,410 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635398055] [2019-10-13 23:13:32,411 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:32,412 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:13:32,412 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618383152] [2019-10-13 23:13:32,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:13:32,413 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:32,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:13:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:13:32,414 INFO L87 Difference]: Start difference. First operand 526 states and 685 transitions. Second operand 12 states. [2019-10-13 23:13:34,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:34,980 INFO L93 Difference]: Finished difference Result 1176 states and 1512 transitions. [2019-10-13 23:13:34,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:13:34,981 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2019-10-13 23:13:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:34,987 INFO L225 Difference]: With dead ends: 1176 [2019-10-13 23:13:34,987 INFO L226 Difference]: Without dead ends: 970 [2019-10-13 23:13:34,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-13 23:13:34,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-10-13 23:13:35,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 959. [2019-10-13 23:13:35,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 959 states. [2019-10-13 23:13:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1264 transitions. [2019-10-13 23:13:35,045 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1264 transitions. Word has length 227 [2019-10-13 23:13:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:35,046 INFO L462 AbstractCegarLoop]: Abstraction has 959 states and 1264 transitions. [2019-10-13 23:13:35,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:13:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1264 transitions. [2019-10-13 23:13:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-13 23:13:35,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:35,053 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:35,053 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1327849714, now seen corresponding path program 1 times [2019-10-13 23:13:35,054 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:35,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607540407] [2019-10-13 23:13:35,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:35,311 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:35,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607540407] [2019-10-13 23:13:35,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:35,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:35,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953357903] [2019-10-13 23:13:35,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:35,324 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:35,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:35,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:35,325 INFO L87 Difference]: Start difference. First operand 959 states and 1264 transitions. Second operand 3 states. [2019-10-13 23:13:35,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:35,405 INFO L93 Difference]: Finished difference Result 2158 states and 2983 transitions. [2019-10-13 23:13:35,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:35,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2019-10-13 23:13:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:35,416 INFO L225 Difference]: With dead ends: 2158 [2019-10-13 23:13:35,417 INFO L226 Difference]: Without dead ends: 1257 [2019-10-13 23:13:35,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:35,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2019-10-13 23:13:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1255. [2019-10-13 23:13:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-13 23:13:35,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1772 transitions. [2019-10-13 23:13:35,517 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1772 transitions. Word has length 243 [2019-10-13 23:13:35,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:35,519 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1772 transitions. [2019-10-13 23:13:35,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1772 transitions. [2019-10-13 23:13:35,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2019-10-13 23:13:35,529 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:35,529 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:35,529 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:35,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:35,530 INFO L82 PathProgramCache]: Analyzing trace with hash -324152982, now seen corresponding path program 1 times [2019-10-13 23:13:35,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:35,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986213924] [2019-10-13 23:13:35,531 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:35,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:35,964 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 23:13:35,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986213924] [2019-10-13 23:13:35,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:35,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 23:13:35,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668631289] [2019-10-13 23:13:35,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:13:35,967 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:35,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:13:35,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:13:35,968 INFO L87 Difference]: Start difference. First operand 1255 states and 1772 transitions. Second operand 11 states. [2019-10-13 23:13:39,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:39,698 INFO L93 Difference]: Finished difference Result 1808 states and 2403 transitions. [2019-10-13 23:13:39,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 23:13:39,698 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 229 [2019-10-13 23:13:39,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:39,708 INFO L225 Difference]: With dead ends: 1808 [2019-10-13 23:13:39,708 INFO L226 Difference]: Without dead ends: 1473 [2019-10-13 23:13:39,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:13:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-13 23:13:39,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1462. [2019-10-13 23:13:39,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2019-10-13 23:13:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2010 transitions. [2019-10-13 23:13:39,801 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2010 transitions. Word has length 229 [2019-10-13 23:13:39,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:39,802 INFO L462 AbstractCegarLoop]: Abstraction has 1462 states and 2010 transitions. [2019-10-13 23:13:39,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:13:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2010 transitions. [2019-10-13 23:13:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-13 23:13:39,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:39,811 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:39,812 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:39,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1127243137, now seen corresponding path program 1 times [2019-10-13 23:13:39,812 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:39,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934389737] [2019-10-13 23:13:39,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:40,017 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:40,018 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934389737] [2019-10-13 23:13:40,018 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:40,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:40,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480360129] [2019-10-13 23:13:40,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:40,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:40,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:40,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:40,020 INFO L87 Difference]: Start difference. First operand 1462 states and 2010 transitions. Second operand 3 states. [2019-10-13 23:13:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:40,119 INFO L93 Difference]: Finished difference Result 3436 states and 4943 transitions. [2019-10-13 23:13:40,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:40,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2019-10-13 23:13:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:40,134 INFO L225 Difference]: With dead ends: 3436 [2019-10-13 23:13:40,134 INFO L226 Difference]: Without dead ends: 2032 [2019-10-13 23:13:40,140 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:40,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2032 states. [2019-10-13 23:13:40,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2032 to 2030. [2019-10-13 23:13:40,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2030 states. [2019-10-13 23:13:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2030 states to 2030 states and 2978 transitions. [2019-10-13 23:13:40,310 INFO L78 Accepts]: Start accepts. Automaton has 2030 states and 2978 transitions. Word has length 244 [2019-10-13 23:13:40,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:40,311 INFO L462 AbstractCegarLoop]: Abstraction has 2030 states and 2978 transitions. [2019-10-13 23:13:40,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:40,311 INFO L276 IsEmpty]: Start isEmpty. Operand 2030 states and 2978 transitions. [2019-10-13 23:13:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-13 23:13:40,330 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:40,330 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:40,331 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:40,332 INFO L82 PathProgramCache]: Analyzing trace with hash 626496206, now seen corresponding path program 1 times [2019-10-13 23:13:40,332 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:40,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549446787] [2019-10-13 23:13:40,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:40,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:40,655 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:40,656 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549446787] [2019-10-13 23:13:40,656 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:40,657 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:40,657 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972130903] [2019-10-13 23:13:40,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:40,658 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:40,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:40,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:40,659 INFO L87 Difference]: Start difference. First operand 2030 states and 2978 transitions. Second operand 3 states. [2019-10-13 23:13:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:40,855 INFO L93 Difference]: Finished difference Result 5092 states and 7767 transitions. [2019-10-13 23:13:40,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:40,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2019-10-13 23:13:40,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:40,883 INFO L225 Difference]: With dead ends: 5092 [2019-10-13 23:13:40,884 INFO L226 Difference]: Without dead ends: 3120 [2019-10-13 23:13:40,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3120 states. [2019-10-13 23:13:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3120 to 3118. [2019-10-13 23:13:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3118 states. [2019-10-13 23:13:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3118 states to 3118 states and 4818 transitions. [2019-10-13 23:13:41,094 INFO L78 Accepts]: Start accepts. Automaton has 3118 states and 4818 transitions. Word has length 245 [2019-10-13 23:13:41,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,095 INFO L462 AbstractCegarLoop]: Abstraction has 3118 states and 4818 transitions. [2019-10-13 23:13:41,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:41,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3118 states and 4818 transitions. [2019-10-13 23:13:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-13 23:13:41,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,114 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,114 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,115 INFO L82 PathProgramCache]: Analyzing trace with hash -847646017, now seen corresponding path program 1 times [2019-10-13 23:13:41,115 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797497079] [2019-10-13 23:13:41,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,281 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:41,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797497079] [2019-10-13 23:13:41,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:41,282 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:41,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665587723] [2019-10-13 23:13:41,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:41,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:41,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:41,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:41,283 INFO L87 Difference]: Start difference. First operand 3118 states and 4818 transitions. Second operand 3 states. [2019-10-13 23:13:41,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:41,554 INFO L93 Difference]: Finished difference Result 8388 states and 13319 transitions. [2019-10-13 23:13:41,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:41,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-13 23:13:41,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:41,592 INFO L225 Difference]: With dead ends: 8388 [2019-10-13 23:13:41,593 INFO L226 Difference]: Without dead ends: 5328 [2019-10-13 23:13:41,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:41,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2019-10-13 23:13:41,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5326. [2019-10-13 23:13:41,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5326 states. [2019-10-13 23:13:41,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5326 states to 5326 states and 8498 transitions. [2019-10-13 23:13:41,941 INFO L78 Accepts]: Start accepts. Automaton has 5326 states and 8498 transitions. Word has length 246 [2019-10-13 23:13:41,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:41,941 INFO L462 AbstractCegarLoop]: Abstraction has 5326 states and 8498 transitions. [2019-10-13 23:13:41,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:41,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5326 states and 8498 transitions. [2019-10-13 23:13:41,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2019-10-13 23:13:41,983 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:41,984 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:41,984 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:41,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:41,984 INFO L82 PathProgramCache]: Analyzing trace with hash 975502990, now seen corresponding path program 1 times [2019-10-13 23:13:41,985 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:41,985 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335756059] [2019-10-13 23:13:41,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,985 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:41,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:42,215 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:42,215 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335756059] [2019-10-13 23:13:42,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:42,216 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:42,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771680673] [2019-10-13 23:13:42,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:42,217 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:42,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:42,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:42,217 INFO L87 Difference]: Start difference. First operand 5326 states and 8498 transitions. Second operand 3 states. [2019-10-13 23:13:42,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:42,742 INFO L93 Difference]: Finished difference Result 14692 states and 23847 transitions. [2019-10-13 23:13:42,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:42,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2019-10-13 23:13:42,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:42,833 INFO L225 Difference]: With dead ends: 14692 [2019-10-13 23:13:42,834 INFO L226 Difference]: Without dead ends: 9424 [2019-10-13 23:13:42,855 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:42,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9424 states. [2019-10-13 23:13:43,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9424 to 9422. [2019-10-13 23:13:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9422 states. [2019-10-13 23:13:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9422 states to 9422 states and 15282 transitions. [2019-10-13 23:13:43,471 INFO L78 Accepts]: Start accepts. Automaton has 9422 states and 15282 transitions. Word has length 247 [2019-10-13 23:13:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:43,472 INFO L462 AbstractCegarLoop]: Abstraction has 9422 states and 15282 transitions. [2019-10-13 23:13:43,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:43,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9422 states and 15282 transitions. [2019-10-13 23:13:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-13 23:13:43,530 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:43,530 INFO L380 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:43,530 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:43,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:43,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1715967229, now seen corresponding path program 1 times [2019-10-13 23:13:43,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:43,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913873507] [2019-10-13 23:13:43,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:43,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:43,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-10-13 23:13:44,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913873507] [2019-10-13 23:13:44,235 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372459403] [2019-10-13 23:13:44,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:13:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:44,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 3448 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:44,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-10-13 23:13:45,130 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:45,538 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:45,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1746791303] [2019-10-13 23:13:45,572 INFO L162 IcfgInterpreter]: Started Sifa with 199 locations of interest [2019-10-13 23:13:45,573 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:45,580 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:45,588 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:45,589 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs