/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:44,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:44,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:44,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:44,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:44,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:44,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:44,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:44,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:44,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:44,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:44,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:44,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:44,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:44,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:44,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:44,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:44,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:44,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:44,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:44,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:44,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:44,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:44,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:44,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:44,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:44,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:44,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:44,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:44,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:44,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:44,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:44,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:44,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:44,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:44,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:44,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:44,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:44,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:44,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:44,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:44,275 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 [2019-11-07 00:54:44,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:44,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:44,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:44,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:44,291 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:44,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:44,292 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:44,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:44,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:44,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:44,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:44,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:44,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:44,293 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:44,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:44,294 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:44,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:44,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:44,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:44,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:44,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:44,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:44,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:44,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:44,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:44,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:44,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:44,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:44,296 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:54:44,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:44,657 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:44,661 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:44,662 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:44,663 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:44,663 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-11-07 00:54:44,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccc89400/157b094f2032453ca07dc9ac07590393/FLAGc6cdf6f94 [2019-11-07 00:54:45,344 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:45,347 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product35.cil.c [2019-11-07 00:54:45,379 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccc89400/157b094f2032453ca07dc9ac07590393/FLAGc6cdf6f94 [2019-11-07 00:54:45,588 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dccc89400/157b094f2032453ca07dc9ac07590393 [2019-11-07 00:54:45,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:45,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:45,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:45,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:45,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:45,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:45" (1/1) ... [2019-11-07 00:54:45,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e5d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:45, skipping insertion in model container [2019-11-07 00:54:45,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:45" (1/1) ... [2019-11-07 00:54:45,661 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:45,828 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:46,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:46,725 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:46,860 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:46,966 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:46,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46 WrapperNode [2019-11-07 00:54:46,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:46,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:46,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:46,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:46,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:46,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (1/1) ... [2019-11-07 00:54:47,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:47,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:47,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:47,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:47,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (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 [2019-11-07 00:54:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:54:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:54:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:47,263 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:47,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:47,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:47,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:47,269 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:47,270 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:47,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:47,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:47,273 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:47,274 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:47,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:47,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:47,277 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:47,285 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-11-07 00:54:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:54:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:47,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:47,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:54:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:47,311 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:47,312 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:54:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:47,314 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:49,655 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:49,655 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:49,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:49 BoogieIcfgContainer [2019-11-07 00:54:49,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:49,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:49,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:49,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:49,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:45" (1/3) ... [2019-11-07 00:54:49,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d5cf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:49, skipping insertion in model container [2019-11-07 00:54:49,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:46" (2/3) ... [2019-11-07 00:54:49,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d5cf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:49, skipping insertion in model container [2019-11-07 00:54:49,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:49" (3/3) ... [2019-11-07 00:54:49,673 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product35.cil.c [2019-11-07 00:54:49,683 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:49,696 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:49,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:49,753 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:49,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:49,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:49,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:49,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:49,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:49,754 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:49,754 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states. [2019-11-07 00:54:49,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:49,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:49,843 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:49,846 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:49,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:49,853 INFO L82 PathProgramCache]: Analyzing trace with hash 704600627, now seen corresponding path program 1 times [2019-11-07 00:54:49,864 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:49,865 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723929331] [2019-11-07 00:54:49,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:50,616 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723929331] [2019-11-07 00:54:50,617 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:50,617 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:50,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363481099] [2019-11-07 00:54:50,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:50,625 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:50,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:50,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:50,643 INFO L87 Difference]: Start difference. First operand 679 states. Second operand 2 states. [2019-11-07 00:54:50,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:50,738 INFO L93 Difference]: Finished difference Result 1033 states and 1392 transitions. [2019-11-07 00:54:50,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:50,739 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-11-07 00:54:50,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:50,763 INFO L225 Difference]: With dead ends: 1033 [2019-11-07 00:54:50,763 INFO L226 Difference]: Without dead ends: 650 [2019-11-07 00:54:50,771 INFO L630 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 [2019-11-07 00:54:50,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2019-11-07 00:54:50,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2019-11-07 00:54:50,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-11-07 00:54:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 880 transitions. [2019-11-07 00:54:50,872 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 880 transitions. Word has length 191 [2019-11-07 00:54:50,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:50,874 INFO L462 AbstractCegarLoop]: Abstraction has 650 states and 880 transitions. [2019-11-07 00:54:50,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 880 transitions. [2019-11-07 00:54:50,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-11-07 00:54:50,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:50,880 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:50,880 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:50,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:50,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1790532570, now seen corresponding path program 1 times [2019-11-07 00:54:50,881 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:50,881 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935416675] [2019-11-07 00:54:50,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:51,214 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935416675] [2019-11-07 00:54:51,214 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:51,214 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:51,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660979103] [2019-11-07 00:54:51,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:51,229 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:51,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:51,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:51,230 INFO L87 Difference]: Start difference. First operand 650 states and 880 transitions. Second operand 3 states. [2019-11-07 00:54:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:51,329 INFO L93 Difference]: Finished difference Result 1016 states and 1354 transitions. [2019-11-07 00:54:51,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:51,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-11-07 00:54:51,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:51,340 INFO L225 Difference]: With dead ends: 1016 [2019-11-07 00:54:51,340 INFO L226 Difference]: Without dead ends: 653 [2019-11-07 00:54:51,348 INFO L630 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 [2019-11-07 00:54:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2019-11-07 00:54:51,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 652. [2019-11-07 00:54:51,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-11-07 00:54:51,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 882 transitions. [2019-11-07 00:54:51,401 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 882 transitions. Word has length 192 [2019-11-07 00:54:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:51,402 INFO L462 AbstractCegarLoop]: Abstraction has 652 states and 882 transitions. [2019-11-07 00:54:51,402 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 882 transitions. [2019-11-07 00:54:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 00:54:51,407 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:51,407 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:51,408 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:51,408 INFO L82 PathProgramCache]: Analyzing trace with hash 94265161, now seen corresponding path program 1 times [2019-11-07 00:54:51,408 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:51,409 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953789833] [2019-11-07 00:54:51,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:51,654 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953789833] [2019-11-07 00:54:51,655 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:51,655 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:51,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099864878] [2019-11-07 00:54:51,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:51,660 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:51,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:51,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:51,661 INFO L87 Difference]: Start difference. First operand 652 states and 882 transitions. Second operand 3 states. [2019-11-07 00:54:51,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:51,733 INFO L93 Difference]: Finished difference Result 1284 states and 1768 transitions. [2019-11-07 00:54:51,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:51,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-11-07 00:54:51,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:51,747 INFO L225 Difference]: With dead ends: 1284 [2019-11-07 00:54:51,748 INFO L226 Difference]: Without dead ends: 697 [2019-11-07 00:54:51,751 INFO L630 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 [2019-11-07 00:54:51,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2019-11-07 00:54:51,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 696. [2019-11-07 00:54:51,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-11-07 00:54:51,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 957 transitions. [2019-11-07 00:54:51,820 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 957 transitions. Word has length 204 [2019-11-07 00:54:51,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:51,821 INFO L462 AbstractCegarLoop]: Abstraction has 696 states and 957 transitions. [2019-11-07 00:54:51,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 957 transitions. [2019-11-07 00:54:51,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-11-07 00:54:51,837 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:51,837 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:51,838 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:51,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:51,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1429937952, now seen corresponding path program 1 times [2019-11-07 00:54:51,840 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:51,840 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045909158] [2019-11-07 00:54:51,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:51,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:52,196 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:52,197 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045909158] [2019-11-07 00:54:52,197 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:52,197 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:52,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856458124] [2019-11-07 00:54:52,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:52,200 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:52,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:52,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:52,200 INFO L87 Difference]: Start difference. First operand 696 states and 957 transitions. Second operand 3 states. [2019-11-07 00:54:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:52,246 INFO L93 Difference]: Finished difference Result 1413 states and 1988 transitions. [2019-11-07 00:54:52,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:52,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-11-07 00:54:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:52,253 INFO L225 Difference]: With dead ends: 1413 [2019-11-07 00:54:52,254 INFO L226 Difference]: Without dead ends: 782 [2019-11-07 00:54:52,257 INFO L630 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 [2019-11-07 00:54:52,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-11-07 00:54:52,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 781. [2019-11-07 00:54:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 781 states. [2019-11-07 00:54:52,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1101 transitions. [2019-11-07 00:54:52,291 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1101 transitions. Word has length 205 [2019-11-07 00:54:52,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:52,292 INFO L462 AbstractCegarLoop]: Abstraction has 781 states and 1101 transitions. [2019-11-07 00:54:52,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1101 transitions. [2019-11-07 00:54:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-11-07 00:54:52,298 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:52,299 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:52,299 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:52,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1523480998, now seen corresponding path program 1 times [2019-11-07 00:54:52,300 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:52,300 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252355141] [2019-11-07 00:54:52,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:52,817 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252355141] [2019-11-07 00:54:52,818 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:52,818 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:54:52,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842336575] [2019-11-07 00:54:52,819 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:54:52,819 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:52,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:54:52,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:52,821 INFO L87 Difference]: Start difference. First operand 781 states and 1101 transitions. Second operand 19 states. [2019-11-07 00:54:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:58,715 INFO L93 Difference]: Finished difference Result 2645 states and 3732 transitions. [2019-11-07 00:54:58,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:54:58,716 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 208 [2019-11-07 00:54:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:58,731 INFO L225 Difference]: With dead ends: 2645 [2019-11-07 00:54:58,731 INFO L226 Difference]: Without dead ends: 2295 [2019-11-07 00:54:58,735 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:54:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2295 states. [2019-11-07 00:54:58,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2295 to 2258. [2019-11-07 00:54:58,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2258 states. [2019-11-07 00:54:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3200 transitions. [2019-11-07 00:54:58,854 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3200 transitions. Word has length 208 [2019-11-07 00:54:58,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:58,855 INFO L462 AbstractCegarLoop]: Abstraction has 2258 states and 3200 transitions. [2019-11-07 00:54:58,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:54:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3200 transitions. [2019-11-07 00:54:58,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:54:58,863 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:58,864 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:58,864 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:58,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:58,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1121180023, now seen corresponding path program 1 times [2019-11-07 00:54:58,865 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:58,865 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294225368] [2019-11-07 00:54:58,865 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:59,260 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294225368] [2019-11-07 00:54:59,261 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:59,261 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-11-07 00:54:59,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827620785] [2019-11-07 00:54:59,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 00:54:59,262 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:59,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 00:54:59,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:59,263 INFO L87 Difference]: Start difference. First operand 2258 states and 3200 transitions. Second operand 13 states. [2019-11-07 00:54:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:59,917 INFO L93 Difference]: Finished difference Result 3859 states and 5423 transitions. [2019-11-07 00:54:59,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:59,918 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2019-11-07 00:54:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:59,932 INFO L225 Difference]: With dead ends: 3859 [2019-11-07 00:54:59,932 INFO L226 Difference]: Without dead ends: 2392 [2019-11-07 00:54:59,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:54:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2019-11-07 00:55:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2392. [2019-11-07 00:55:00,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2019-11-07 00:55:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3417 transitions. [2019-11-07 00:55:00,080 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3417 transitions. Word has length 209 [2019-11-07 00:55:00,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:00,083 INFO L462 AbstractCegarLoop]: Abstraction has 2392 states and 3417 transitions. [2019-11-07 00:55:00,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 00:55:00,083 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3417 transitions. [2019-11-07 00:55:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:55:00,094 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:00,094 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:00,094 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:00,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1128009189, now seen corresponding path program 1 times [2019-11-07 00:55:00,095 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:00,095 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57939851] [2019-11-07 00:55:00,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:55:00,520 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57939851] [2019-11-07 00:55:00,520 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:00,520 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:55:00,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645319248] [2019-11-07 00:55:00,521 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:55:00,521 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:00,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:55:00,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:55:00,522 INFO L87 Difference]: Start difference. First operand 2392 states and 3417 transitions. Second operand 15 states. [2019-11-07 00:55:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:04,771 INFO L93 Difference]: Finished difference Result 4031 states and 5718 transitions. [2019-11-07 00:55:04,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:55:04,774 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 209 [2019-11-07 00:55:04,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:04,790 INFO L225 Difference]: With dead ends: 4031 [2019-11-07 00:55:04,791 INFO L226 Difference]: Without dead ends: 2510 [2019-11-07 00:55:04,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:55:04,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2510 states. [2019-11-07 00:55:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2510 to 2473. [2019-11-07 00:55:04,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2473 states. [2019-11-07 00:55:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3557 transitions. [2019-11-07 00:55:04,919 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3557 transitions. Word has length 209 [2019-11-07 00:55:04,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:04,920 INFO L462 AbstractCegarLoop]: Abstraction has 2473 states and 3557 transitions. [2019-11-07 00:55:04,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:55:04,920 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3557 transitions. [2019-11-07 00:55:04,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:55:04,929 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:04,929 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:04,929 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:04,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:04,930 INFO L82 PathProgramCache]: Analyzing trace with hash -151920076, now seen corresponding path program 1 times [2019-11-07 00:55:04,930 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:04,930 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031180704] [2019-11-07 00:55:04,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:55:05,303 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031180704] [2019-11-07 00:55:05,303 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:05,304 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-11-07 00:55:05,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832016015] [2019-11-07 00:55:05,305 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-07 00:55:05,305 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:05,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-07 00:55:05,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-11-07 00:55:05,306 INFO L87 Difference]: Start difference. First operand 2473 states and 3557 transitions. Second operand 18 states. [2019-11-07 00:55:05,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:05,883 INFO L93 Difference]: Finished difference Result 4142 states and 5883 transitions. [2019-11-07 00:55:05,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 00:55:05,884 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 209 [2019-11-07 00:55:05,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:05,900 INFO L225 Difference]: With dead ends: 4142 [2019-11-07 00:55:05,900 INFO L226 Difference]: Without dead ends: 2520 [2019-11-07 00:55:05,909 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-11-07 00:55:05,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2019-11-07 00:55:06,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2518. [2019-11-07 00:55:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2019-11-07 00:55:06,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 3597 transitions. [2019-11-07 00:55:06,027 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 3597 transitions. Word has length 209 [2019-11-07 00:55:06,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:06,028 INFO L462 AbstractCegarLoop]: Abstraction has 2518 states and 3597 transitions. [2019-11-07 00:55:06,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-07 00:55:06,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 3597 transitions. [2019-11-07 00:55:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:55:06,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:06,040 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:06,040 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:06,040 INFO L82 PathProgramCache]: Analyzing trace with hash 712856251, now seen corresponding path program 1 times [2019-11-07 00:55:06,041 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:06,041 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331214110] [2019-11-07 00:55:06,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:06,276 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331214110] [2019-11-07 00:55:06,277 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:06,277 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:06,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293100723] [2019-11-07 00:55:06,278 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:06,278 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:06,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:06,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:06,279 INFO L87 Difference]: Start difference. First operand 2518 states and 3597 transitions. Second operand 5 states. [2019-11-07 00:55:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:07,761 INFO L93 Difference]: Finished difference Result 6256 states and 8984 transitions. [2019-11-07 00:55:07,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:55:07,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-11-07 00:55:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:07,811 INFO L225 Difference]: With dead ends: 6256 [2019-11-07 00:55:07,811 INFO L226 Difference]: Without dead ends: 5419 [2019-11-07 00:55:07,822 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5419 states. [2019-11-07 00:55:08,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5419 to 5405. [2019-11-07 00:55:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5405 states. [2019-11-07 00:55:08,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 7765 transitions. [2019-11-07 00:55:08,305 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 7765 transitions. Word has length 209 [2019-11-07 00:55:08,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:08,307 INFO L462 AbstractCegarLoop]: Abstraction has 5405 states and 7765 transitions. [2019-11-07 00:55:08,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:55:08,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 7765 transitions. [2019-11-07 00:55:08,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-11-07 00:55:08,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:08,327 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:08,327 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:08,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:08,328 INFO L82 PathProgramCache]: Analyzing trace with hash 733193626, now seen corresponding path program 1 times [2019-11-07 00:55:08,328 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:08,329 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712492727] [2019-11-07 00:55:08,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:08,672 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:08,672 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712492727] [2019-11-07 00:55:08,673 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:08,674 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:55:08,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448944570] [2019-11-07 00:55:08,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:55:08,676 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:08,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:55:08,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:55:08,677 INFO L87 Difference]: Start difference. First operand 5405 states and 7765 transitions. Second operand 7 states. [2019-11-07 00:55:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:11,639 INFO L93 Difference]: Finished difference Result 17958 states and 28157 transitions. [2019-11-07 00:55:11,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:55:11,639 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2019-11-07 00:55:11,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:11,729 INFO L225 Difference]: With dead ends: 17958 [2019-11-07 00:55:11,729 INFO L226 Difference]: Without dead ends: 13827 [2019-11-07 00:55:11,758 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:55:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13827 states. [2019-11-07 00:55:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13827 to 13821. [2019-11-07 00:55:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13821 states. [2019-11-07 00:55:12,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13821 states to 13821 states and 21317 transitions. [2019-11-07 00:55:12,420 INFO L78 Accepts]: Start accepts. Automaton has 13821 states and 21317 transitions. Word has length 209 [2019-11-07 00:55:12,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:12,420 INFO L462 AbstractCegarLoop]: Abstraction has 13821 states and 21317 transitions. [2019-11-07 00:55:12,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:55:12,421 INFO L276 IsEmpty]: Start isEmpty. Operand 13821 states and 21317 transitions. [2019-11-07 00:55:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-11-07 00:55:12,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:12,433 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:12,433 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:12,434 INFO L82 PathProgramCache]: Analyzing trace with hash 588620997, now seen corresponding path program 1 times [2019-11-07 00:55:12,434 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:12,434 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883757527] [2019-11-07 00:55:12,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:13,574 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883757527] [2019-11-07 00:55:13,575 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:13,575 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-11-07 00:55:13,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96973460] [2019-11-07 00:55:13,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-11-07 00:55:13,576 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:13,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-11-07 00:55:13,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-11-07 00:55:13,577 INFO L87 Difference]: Start difference. First operand 13821 states and 21317 transitions. Second operand 28 states. [2019-11-07 00:55:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:15,074 INFO L93 Difference]: Finished difference Result 26809 states and 42219 transitions. [2019-11-07 00:55:15,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-07 00:55:15,075 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 210 [2019-11-07 00:55:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:15,266 INFO L225 Difference]: With dead ends: 26809 [2019-11-07 00:55:15,266 INFO L226 Difference]: Without dead ends: 14262 [2019-11-07 00:55:15,335 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-11-07 00:55:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14262 states. [2019-11-07 00:55:16,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14262 to 14229. [2019-11-07 00:55:16,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14229 states. [2019-11-07 00:55:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14229 states to 14229 states and 21846 transitions. [2019-11-07 00:55:16,090 INFO L78 Accepts]: Start accepts. Automaton has 14229 states and 21846 transitions. Word has length 210 [2019-11-07 00:55:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:16,091 INFO L462 AbstractCegarLoop]: Abstraction has 14229 states and 21846 transitions. [2019-11-07 00:55:16,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-11-07 00:55:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 14229 states and 21846 transitions. [2019-11-07 00:55:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-11-07 00:55:16,105 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:16,105 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:16,105 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:16,106 INFO L82 PathProgramCache]: Analyzing trace with hash -410361531, now seen corresponding path program 1 times [2019-11-07 00:55:16,106 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:16,106 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704173543] [2019-11-07 00:55:16,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:16,298 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704173543] [2019-11-07 00:55:16,298 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:16,298 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 00:55:16,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982526858] [2019-11-07 00:55:16,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:55:16,299 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:16,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:55:16,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:16,300 INFO L87 Difference]: Start difference. First operand 14229 states and 21846 transitions. Second operand 10 states. [2019-11-07 00:55:16,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:16,547 INFO L93 Difference]: Finished difference Result 14352 states and 22078 transitions. [2019-11-07 00:55:16,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 00:55:16,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 214 [2019-11-07 00:55:16,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:16,623 INFO L225 Difference]: With dead ends: 14352 [2019-11-07 00:55:16,624 INFO L226 Difference]: Without dead ends: 14349 [2019-11-07 00:55:16,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:55:16,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14349 states. [2019-11-07 00:55:17,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14349 to 14349. [2019-11-07 00:55:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14349 states. [2019-11-07 00:55:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14349 states to 14349 states and 22036 transitions. [2019-11-07 00:55:17,533 INFO L78 Accepts]: Start accepts. Automaton has 14349 states and 22036 transitions. Word has length 214 [2019-11-07 00:55:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:17,536 INFO L462 AbstractCegarLoop]: Abstraction has 14349 states and 22036 transitions. [2019-11-07 00:55:17,536 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:55:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 14349 states and 22036 transitions. [2019-11-07 00:55:17,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-07 00:55:17,555 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:17,555 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:17,555 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:17,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:17,555 INFO L82 PathProgramCache]: Analyzing trace with hash -180221892, now seen corresponding path program 1 times [2019-11-07 00:55:17,556 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:17,556 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051050515] [2019-11-07 00:55:17,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:55:17,709 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051050515] [2019-11-07 00:55:17,709 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:17,710 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:55:17,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767485640] [2019-11-07 00:55:17,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:55:17,711 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:17,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:55:17,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:55:17,712 INFO L87 Difference]: Start difference. First operand 14349 states and 22036 transitions. Second operand 5 states.