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_spec6_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:13,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:13,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:13,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:13,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:13,945 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:13,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:13,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:13,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:13,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:13,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:13,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:13,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:13,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:13,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:13,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:13,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:13,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:13,976 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:13,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:13,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:13,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:13,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:13,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:13,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:13,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:13,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:13,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:13,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:13,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:13,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:13,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:13,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:13,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:14,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:14,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:14,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:14,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:14,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:14,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:14,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:14,008 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 23:11:14,044 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:14,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:14,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:14,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:14,046 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:14,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:14,046 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:14,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:14,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:14,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:14,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:14,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:14,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:14,048 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:14,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:14,048 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:14,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:14,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:14,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:14,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:14,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:14,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:14,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:14,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:14,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:14,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:14,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:14,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:14,055 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 23:11:14,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:14,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:14,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:14,385 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:14,385 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:14,386 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-13 23:11:14,444 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af76f62/e90b28cfb70d4141aa09e92e8aa39bc7/FLAGd7c21ee5d [2019-10-13 23:11:15,033 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:15,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product26.cil.c [2019-10-13 23:11:15,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af76f62/e90b28cfb70d4141aa09e92e8aa39bc7/FLAGd7c21ee5d [2019-10-13 23:11:15,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af76f62/e90b28cfb70d4141aa09e92e8aa39bc7 [2019-10-13 23:11:15,275 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:15,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:15,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:15,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:15,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:15,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:15, skipping insertion in model container [2019-10-13 23:11:15,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:15" (1/1) ... [2019-10-13 23:11:15,292 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:15,373 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:16,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:16,145 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:16,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:16,393 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:16,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16 WrapperNode [2019-10-13 23:11:16,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:16,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:16,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:16,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:16,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:16,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:16,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:16,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:16,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (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 23:11:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:16,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:16,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:16,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:16,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:16,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:16,676 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:16,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:16,678 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:16,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:16,681 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:16,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:11:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 23:11:16,683 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:16,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:16,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:16,687 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:16,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:16,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:16,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:16,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:16,689 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:16,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:16,691 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:16,692 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:16,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:16,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:16,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:16,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:16,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:16,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:16,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:16,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:11:16,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 23:11:16,702 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:16,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:16,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:16,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:16,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:16,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:16,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:16,711 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:16,712 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:16,713 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:16,719 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:16,721 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:16,723 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 23:11:16,724 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:16,725 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:16,726 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:16,727 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:16,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:16,729 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:16,730 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:16,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:16,732 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:16,733 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:11:16,734 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 23:11:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:16,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:21,442 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:21,444 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:21,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:21 BoogieIcfgContainer [2019-10-13 23:11:21,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:21,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:21,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:21,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:21,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:15" (1/3) ... [2019-10-13 23:11:21,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317083f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:21, skipping insertion in model container [2019-10-13 23:11:21,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16" (2/3) ... [2019-10-13 23:11:21,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317083f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:21, skipping insertion in model container [2019-10-13 23:11:21,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:21" (3/3) ... [2019-10-13 23:11:21,454 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product26.cil.c [2019-10-13 23:11:21,463 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:21,472 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:21,483 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:21,509 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:21,509 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:21,509 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:21,509 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:21,510 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:21,510 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:21,510 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:21,510 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states. [2019-10-13 23:11:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-13 23:11:21,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:21,555 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:21,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:21,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:21,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1454161030, now seen corresponding path program 1 times [2019-10-13 23:11:21,572 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:21,572 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770810786] [2019-10-13 23:11:21,572 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,573 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:21,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:22,146 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 23:11:22,146 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770810786] [2019-10-13 23:11:22,147 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:22,147 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:22,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684908220] [2019-10-13 23:11:22,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:22,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:22,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:22,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:22,169 INFO L87 Difference]: Start difference. First operand 424 states. Second operand 2 states. [2019-10-13 23:11:22,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:22,239 INFO L93 Difference]: Finished difference Result 623 states and 745 transitions. [2019-10-13 23:11:22,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:22,240 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-13 23:11:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:22,260 INFO L225 Difference]: With dead ends: 623 [2019-10-13 23:11:22,260 INFO L226 Difference]: Without dead ends: 397 [2019-10-13 23:11:22,266 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 23:11:22,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-13 23:11:22,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2019-10-13 23:11:22,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2019-10-13 23:11:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 470 transitions. [2019-10-13 23:11:22,377 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 470 transitions. Word has length 143 [2019-10-13 23:11:22,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:22,379 INFO L462 AbstractCegarLoop]: Abstraction has 397 states and 470 transitions. [2019-10-13 23:11:22,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:22,379 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 470 transitions. [2019-10-13 23:11:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:11:22,386 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:22,386 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:22,386 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:22,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:22,387 INFO L82 PathProgramCache]: Analyzing trace with hash -960052196, now seen corresponding path program 1 times [2019-10-13 23:11:22,387 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:22,391 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728175366] [2019-10-13 23:11:22,391 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,392 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:22,645 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 23:11:22,646 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728175366] [2019-10-13 23:11:22,646 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:22,646 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:22,646 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791153414] [2019-10-13 23:11:22,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:22,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:22,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:22,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:22,651 INFO L87 Difference]: Start difference. First operand 397 states and 470 transitions. Second operand 3 states. [2019-10-13 23:11:22,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:22,729 INFO L93 Difference]: Finished difference Result 608 states and 713 transitions. [2019-10-13 23:11:22,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:22,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-13 23:11:22,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:22,740 INFO L225 Difference]: With dead ends: 608 [2019-10-13 23:11:22,740 INFO L226 Difference]: Without dead ends: 399 [2019-10-13 23:11:22,744 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 23:11:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-13 23:11:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-13 23:11:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-13 23:11:22,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 472 transitions. [2019-10-13 23:11:22,795 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 472 transitions. Word has length 144 [2019-10-13 23:11:22,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:22,796 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 472 transitions. [2019-10-13 23:11:22,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:22,796 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 472 transitions. [2019-10-13 23:11:22,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-13 23:11:22,804 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:22,804 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:22,806 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:22,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:22,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1019330553, now seen corresponding path program 1 times [2019-10-13 23:11:22,807 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:22,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511291789] [2019-10-13 23:11:22,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:22,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:23,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511291789] [2019-10-13 23:11:23,085 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:23,085 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:23,085 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872062201] [2019-10-13 23:11:23,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:23,087 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:23,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:23,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:23,087 INFO L87 Difference]: Start difference. First operand 399 states and 472 transitions. Second operand 3 states. [2019-10-13 23:11:23,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:23,137 INFO L93 Difference]: Finished difference Result 784 states and 957 transitions. [2019-10-13 23:11:23,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:23,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-13 23:11:23,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:23,142 INFO L225 Difference]: With dead ends: 784 [2019-10-13 23:11:23,142 INFO L226 Difference]: Without dead ends: 443 [2019-10-13 23:11:23,144 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 23:11:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2019-10-13 23:11:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 442. [2019-10-13 23:11:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-13 23:11:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 546 transitions. [2019-10-13 23:11:23,171 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 546 transitions. Word has length 156 [2019-10-13 23:11:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:23,172 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 546 transitions. [2019-10-13 23:11:23,172 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:23,172 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 546 transitions. [2019-10-13 23:11:23,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-13 23:11:23,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:23,176 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:23,177 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:23,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:23,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1615276318, now seen corresponding path program 1 times [2019-10-13 23:11:23,178 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:23,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339280645] [2019-10-13 23:11:23,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:23,854 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339280645] [2019-10-13 23:11:23,854 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:23,854 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:23,854 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117270256] [2019-10-13 23:11:23,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:23,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:23,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:23,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:23,858 INFO L87 Difference]: Start difference. First operand 442 states and 546 transitions. Second operand 24 states. [2019-10-13 23:11:31,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:31,784 INFO L93 Difference]: Finished difference Result 1204 states and 1482 transitions. [2019-10-13 23:11:31,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-13 23:11:31,785 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-13 23:11:31,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:31,798 INFO L225 Difference]: With dead ends: 1204 [2019-10-13 23:11:31,798 INFO L226 Difference]: Without dead ends: 1003 [2019-10-13 23:11:31,801 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-13 23:11:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2019-10-13 23:11:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 990. [2019-10-13 23:11:31,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2019-10-13 23:11:31,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1204 transitions. [2019-10-13 23:11:31,910 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1204 transitions. Word has length 157 [2019-10-13 23:11:31,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:31,912 INFO L462 AbstractCegarLoop]: Abstraction has 990 states and 1204 transitions. [2019-10-13 23:11:31,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:31,913 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1204 transitions. [2019-10-13 23:11:31,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-13 23:11:31,918 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:31,918 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:31,919 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:31,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:31,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1771186363, now seen corresponding path program 1 times [2019-10-13 23:11:31,919 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:31,920 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677958234] [2019-10-13 23:11:31,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:31,920 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:31,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:32,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677958234] [2019-10-13 23:11:32,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:32,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:11:32,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279776607] [2019-10-13 23:11:32,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:11:32,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:32,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:11:32,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:11:32,347 INFO L87 Difference]: Start difference. First operand 990 states and 1204 transitions. Second operand 14 states. [2019-10-13 23:11:35,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:35,984 INFO L93 Difference]: Finished difference Result 2265 states and 2758 transitions. [2019-10-13 23:11:35,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:11:35,985 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-13 23:11:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:35,998 INFO L225 Difference]: With dead ends: 2265 [2019-10-13 23:11:35,999 INFO L226 Difference]: Without dead ends: 1884 [2019-10-13 23:11:36,001 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:11:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2019-10-13 23:11:36,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1836. [2019-10-13 23:11:36,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2019-10-13 23:11:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2223 transitions. [2019-10-13 23:11:36,123 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2223 transitions. Word has length 163 [2019-10-13 23:11:36,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:36,125 INFO L462 AbstractCegarLoop]: Abstraction has 1836 states and 2223 transitions. [2019-10-13 23:11:36,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:11:36,125 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2223 transitions. [2019-10-13 23:11:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-13 23:11:36,128 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:36,129 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:36,129 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:36,129 INFO L82 PathProgramCache]: Analyzing trace with hash -720526917, now seen corresponding path program 1 times [2019-10-13 23:11:36,130 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:36,130 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620841363] [2019-10-13 23:11:36,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:36,130 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:36,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:36,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:36,294 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620841363] [2019-10-13 23:11:36,296 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:36,296 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:36,297 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828001869] [2019-10-13 23:11:36,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:36,297 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:36,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:36,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:36,298 INFO L87 Difference]: Start difference. First operand 1836 states and 2223 transitions. Second operand 3 states. [2019-10-13 23:11:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:36,399 INFO L93 Difference]: Finished difference Result 3732 states and 4588 transitions. [2019-10-13 23:11:36,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:36,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-13 23:11:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:36,411 INFO L225 Difference]: With dead ends: 3732 [2019-10-13 23:11:36,412 INFO L226 Difference]: Without dead ends: 1954 [2019-10-13 23:11:36,422 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 23:11:36,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2019-10-13 23:11:36,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1952. [2019-10-13 23:11:36,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1952 states. [2019-10-13 23:11:36,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1952 states to 1952 states and 2423 transitions. [2019-10-13 23:11:36,600 INFO L78 Accepts]: Start accepts. Automaton has 1952 states and 2423 transitions. Word has length 178 [2019-10-13 23:11:36,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:36,600 INFO L462 AbstractCegarLoop]: Abstraction has 1952 states and 2423 transitions. [2019-10-13 23:11:36,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:36,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1952 states and 2423 transitions. [2019-10-13 23:11:36,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-13 23:11:36,605 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:36,605 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:36,605 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:36,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1146924668, now seen corresponding path program 1 times [2019-10-13 23:11:36,606 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:36,610 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144123784] [2019-10-13 23:11:36,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:36,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:36,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:36,768 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:36,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144123784] [2019-10-13 23:11:36,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:36,770 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:36,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575678645] [2019-10-13 23:11:36,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:36,771 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:36,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:36,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:36,772 INFO L87 Difference]: Start difference. First operand 1952 states and 2423 transitions. Second operand 3 states. [2019-10-13 23:11:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:36,895 INFO L93 Difference]: Finished difference Result 4071 states and 5173 transitions. [2019-10-13 23:11:36,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:36,896 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-13 23:11:36,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:36,915 INFO L225 Difference]: With dead ends: 4071 [2019-10-13 23:11:36,915 INFO L226 Difference]: Without dead ends: 2177 [2019-10-13 23:11:36,921 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 23:11:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2019-10-13 23:11:37,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2175. [2019-10-13 23:11:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2019-10-13 23:11:37,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 2805 transitions. [2019-10-13 23:11:37,051 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 2805 transitions. Word has length 179 [2019-10-13 23:11:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:37,051 INFO L462 AbstractCegarLoop]: Abstraction has 2175 states and 2805 transitions. [2019-10-13 23:11:37,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 2805 transitions. [2019-10-13 23:11:37,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-13 23:11:37,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:37,058 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:37,058 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:37,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:37,058 INFO L82 PathProgramCache]: Analyzing trace with hash 370854203, now seen corresponding path program 1 times [2019-10-13 23:11:37,059 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:37,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655235228] [2019-10-13 23:11:37,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:37,059 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:37,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:37,444 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:37,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655235228] [2019-10-13 23:11:37,445 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:37,445 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:37,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88770374] [2019-10-13 23:11:37,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:37,447 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:37,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:37,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:37,448 INFO L87 Difference]: Start difference. First operand 2175 states and 2805 transitions. Second operand 12 states. [2019-10-13 23:11:42,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:42,618 INFO L93 Difference]: Finished difference Result 4552 states and 6039 transitions. [2019-10-13 23:11:42,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:11:42,618 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-13 23:11:42,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:42,647 INFO L225 Difference]: With dead ends: 4552 [2019-10-13 23:11:42,647 INFO L226 Difference]: Without dead ends: 3373 [2019-10-13 23:11:42,656 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:11:42,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2019-10-13 23:11:42,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2610. [2019-10-13 23:11:42,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2610 states. [2019-10-13 23:11:42,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3550 transitions. [2019-10-13 23:11:42,846 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3550 transitions. Word has length 180 [2019-10-13 23:11:42,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:42,849 INFO L462 AbstractCegarLoop]: Abstraction has 2610 states and 3550 transitions. [2019-10-13 23:11:42,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:11:42,849 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3550 transitions. [2019-10-13 23:11:42,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-13 23:11:42,862 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:42,863 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:42,863 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:42,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1471678325, now seen corresponding path program 1 times [2019-10-13 23:11:42,864 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:42,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334620020] [2019-10-13 23:11:42,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:42,865 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:42,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:43,045 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334620020] [2019-10-13 23:11:43,047 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:43,048 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:43,048 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510497189] [2019-10-13 23:11:43,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:43,050 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:43,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:43,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:43,051 INFO L87 Difference]: Start difference. First operand 2610 states and 3550 transitions. Second operand 3 states. [2019-10-13 23:11:43,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:43,216 INFO L93 Difference]: Finished difference Result 5467 states and 7592 transitions. [2019-10-13 23:11:43,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:43,216 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-13 23:11:43,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:43,379 INFO L225 Difference]: With dead ends: 5467 [2019-10-13 23:11:43,379 INFO L226 Difference]: Without dead ends: 2919 [2019-10-13 23:11:43,387 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 23:11:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2919 states. [2019-10-13 23:11:43,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2919 to 2918. [2019-10-13 23:11:43,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2019-10-13 23:11:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 4086 transitions. [2019-10-13 23:11:43,568 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 4086 transitions. Word has length 181 [2019-10-13 23:11:43,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:43,568 INFO L462 AbstractCegarLoop]: Abstraction has 2918 states and 4086 transitions. [2019-10-13 23:11:43,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 4086 transitions. [2019-10-13 23:11:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:11:43,579 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:43,579 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:11:43,580 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:43,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1766899352, now seen corresponding path program 1 times [2019-10-13 23:11:43,580 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:43,580 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385658900] [2019-10-13 23:11:43,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:43,581 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:43,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:43,847 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:11:43,847 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385658900] [2019-10-13 23:11:43,848 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:43,848 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:43,848 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639483980] [2019-10-13 23:11:43,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:43,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:43,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:43,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:43,849 INFO L87 Difference]: Start difference. First operand 2918 states and 4086 transitions. Second operand 12 states.