/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_spec0_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:46:40,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:46:40,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:46:40,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:46:40,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:46:40,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:46:40,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:46:40,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:46:40,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:46:40,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:46:40,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:46:40,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:46:40,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:46:40,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:46:40,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:46:40,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:46:40,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:46:40,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:46:40,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:46:40,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:46:40,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:46:40,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:46:40,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:46:40,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:46:40,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:46:40,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:46:40,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:46:40,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:46:40,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:46:40,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:46:40,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:46:40,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:46:40,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:46:40,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:46:40,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:46:40,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:46:40,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:46:40,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:46:40,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:46:40,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:46:40,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:46:40,319 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 00:46:40,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:46:40,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:46:40,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:46:40,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:46:40,340 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:46:40,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:46:40,341 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:46:40,341 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:46:40,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:46:40,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:46:40,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:46:40,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:46:40,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:46:40,342 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:46:40,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:46:40,343 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:46:40,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:46:40,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:46:40,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:46:40,344 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:46:40,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:46:40,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:46:40,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:46:40,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:46:40,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:46:40,345 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:46:40,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:46:40,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:46:40,346 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 00:46:40,687 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:46:40,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:46:40,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:46:40,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:46:40,718 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:46:40,719 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-11-07 00:46:40,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac791487/855092c21bd64e80baab2795bd63867b/FLAG64217d604 [2019-11-07 00:46:41,408 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:46:41,409 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_productSimulator.cil.c [2019-11-07 00:46:41,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac791487/855092c21bd64e80baab2795bd63867b/FLAG64217d604 [2019-11-07 00:46:41,602 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cac791487/855092c21bd64e80baab2795bd63867b [2019-11-07 00:46:41,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:46:41,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:46:41,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:46:41,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:46:41,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:46:41,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:41" (1/1) ... [2019-11-07 00:46:41,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e7a7a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:41, skipping insertion in model container [2019-11-07 00:46:41,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:46:41" (1/1) ... [2019-11-07 00:46:41,629 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:46:41,708 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:46:42,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:46:42,593 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:46:42,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:46:42,946 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:46:42,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42 WrapperNode [2019-11-07 00:46:42,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:46:42,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:46:42,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:46:42,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:46:42,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:42,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (1/1) ... [2019-11-07 00:46:43,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:46:43,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:46:43,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:46:43,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:46:43,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (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 00:46:43,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:46:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:46:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:46:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:46:43,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:46:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:46:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:46:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:46:43,246 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-11-07 00:46:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-11-07 00:46:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-11-07 00:46:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-11-07 00:46:43,247 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-11-07 00:46:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-11-07 00:46:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:46:43,248 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:46:43,272 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-11-07 00:46:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-11-07 00:46:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-11-07 00:46:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-11-07 00:46:43,273 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:46:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:46:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:46:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:46:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:46:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:46:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:46:43,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:46:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:46:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:46:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:46:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:46:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:46:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:46:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:46:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:46:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:46:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:46:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:46:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:46:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:46:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:46:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:46:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-11-07 00:46:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:46:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:46:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:46:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-11-07 00:46:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-11-07 00:46:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:46:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:46:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:46:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:46:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:46:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:46:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:46:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:46:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:46:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:46:43,295 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:46:43,296 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:46:43,297 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:46:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:46:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:46:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:46:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:46:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:46:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:46:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:46:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:46:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:46:43,299 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-11-07 00:46:43,300 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-11-07 00:46:43,301 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:46:43,302 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:46:43,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:46:43,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:46:43,305 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:46:43,306 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:46:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:46:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:46:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:46:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:46:43,307 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:46:43,308 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:46:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:46:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:46:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:46:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:46:43,309 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-11-07 00:46:43,310 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-11-07 00:46:43,311 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-11-07 00:46:43,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:46:43,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:46:43,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:46:43,315 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:46:43,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:46:43,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:46:43,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:46:45,777 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:46:45,777 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:46:45,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:45 BoogieIcfgContainer [2019-11-07 00:46:45,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:46:45,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:46:45,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:46:45,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:46:45,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:46:41" (1/3) ... [2019-11-07 00:46:45,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773285ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:45, skipping insertion in model container [2019-11-07 00:46:45,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:46:42" (2/3) ... [2019-11-07 00:46:45,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773285ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:46:45, skipping insertion in model container [2019-11-07 00:46:45,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:46:45" (3/3) ... [2019-11-07 00:46:45,788 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2019-11-07 00:46:45,799 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:46:45,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:46:45,822 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:46:45,865 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:46:45,865 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:46:45,865 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:46:45,866 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:46:45,866 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:46:45,866 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:46:45,866 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:46:45,866 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:46:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states. [2019-11-07 00:46:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-07 00:46:45,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:45,936 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:45,938 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:45,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1166510359, now seen corresponding path program 1 times [2019-11-07 00:46:45,956 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:45,956 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908876983] [2019-11-07 00:46:45,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:46,702 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:46,703 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908876983] [2019-11-07 00:46:46,703 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:46,704 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:46:46,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812469539] [2019-11-07 00:46:46,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:46:46,717 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:46,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:46:46,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:46:46,735 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 6 states. [2019-11-07 00:46:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:46,972 INFO L93 Difference]: Finished difference Result 1540 states and 2136 transitions. [2019-11-07 00:46:46,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:46:46,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2019-11-07 00:46:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:47,023 INFO L225 Difference]: With dead ends: 1540 [2019-11-07 00:46:47,023 INFO L226 Difference]: Without dead ends: 782 [2019-11-07 00:46:47,036 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:46:47,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-11-07 00:46:47,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2019-11-07 00:46:47,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2019-11-07 00:46:47,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1064 transitions. [2019-11-07 00:46:47,173 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1064 transitions. Word has length 225 [2019-11-07 00:46:47,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:47,175 INFO L462 AbstractCegarLoop]: Abstraction has 782 states and 1064 transitions. [2019-11-07 00:46:47,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:46:47,175 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1064 transitions. [2019-11-07 00:46:47,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-11-07 00:46:47,191 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:47,192 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:47,192 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:47,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash -698788770, now seen corresponding path program 1 times [2019-11-07 00:46:47,193 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:47,193 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834180105] [2019-11-07 00:46:47,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:47,505 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834180105] [2019-11-07 00:46:47,505 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:47,506 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:47,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316996319] [2019-11-07 00:46:47,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:47,508 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:47,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:47,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:47,509 INFO L87 Difference]: Start difference. First operand 782 states and 1064 transitions. Second operand 3 states. [2019-11-07 00:46:47,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:47,551 INFO L93 Difference]: Finished difference Result 1217 states and 1629 transitions. [2019-11-07 00:46:47,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:47,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-11-07 00:46:47,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:47,559 INFO L225 Difference]: With dead ends: 1217 [2019-11-07 00:46:47,560 INFO L226 Difference]: Without dead ends: 785 [2019-11-07 00:46:47,562 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 00:46:47,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2019-11-07 00:46:47,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 784. [2019-11-07 00:46:47,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-11-07 00:46:47,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1066 transitions. [2019-11-07 00:46:47,623 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1066 transitions. Word has length 231 [2019-11-07 00:46:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:47,625 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1066 transitions. [2019-11-07 00:46:47,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:47,625 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1066 transitions. [2019-11-07 00:46:47,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-11-07 00:46:47,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:47,684 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:47,684 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:47,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:47,685 INFO L82 PathProgramCache]: Analyzing trace with hash 343321335, now seen corresponding path program 1 times [2019-11-07 00:46:47,685 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:47,685 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190633532] [2019-11-07 00:46:47,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-11-07 00:46:48,023 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190633532] [2019-11-07 00:46:48,023 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:48,023 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:46:48,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759099637] [2019-11-07 00:46:48,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:46:48,025 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:48,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:46:48,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:46:48,026 INFO L87 Difference]: Start difference. First operand 784 states and 1066 transitions. Second operand 6 states. [2019-11-07 00:46:49,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:49,195 INFO L93 Difference]: Finished difference Result 1880 states and 2567 transitions. [2019-11-07 00:46:49,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:46:49,196 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 238 [2019-11-07 00:46:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:49,207 INFO L225 Difference]: With dead ends: 1880 [2019-11-07 00:46:49,207 INFO L226 Difference]: Without dead ends: 1461 [2019-11-07 00:46:49,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:46:49,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1461 states. [2019-11-07 00:46:49,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1461 to 1452. [2019-11-07 00:46:49,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1452 states. [2019-11-07 00:46:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1452 states to 1452 states and 1992 transitions. [2019-11-07 00:46:49,285 INFO L78 Accepts]: Start accepts. Automaton has 1452 states and 1992 transitions. Word has length 238 [2019-11-07 00:46:49,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:49,287 INFO L462 AbstractCegarLoop]: Abstraction has 1452 states and 1992 transitions. [2019-11-07 00:46:49,287 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:46:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1452 states and 1992 transitions. [2019-11-07 00:46:49,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-11-07 00:46:49,294 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:49,295 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:49,295 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:49,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:49,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1265830378, now seen corresponding path program 1 times [2019-11-07 00:46:49,296 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:49,296 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327019764] [2019-11-07 00:46:49,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:49,590 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-11-07 00:46:49,591 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327019764] [2019-11-07 00:46:49,591 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:49,591 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:46:49,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684153712] [2019-11-07 00:46:49,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:46:49,592 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:49,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:46:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:46:49,593 INFO L87 Difference]: Start difference. First operand 1452 states and 1992 transitions. Second operand 6 states. [2019-11-07 00:46:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:50,496 INFO L93 Difference]: Finished difference Result 3650 states and 5004 transitions. [2019-11-07 00:46:50,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:46:50,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2019-11-07 00:46:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:50,516 INFO L225 Difference]: With dead ends: 3650 [2019-11-07 00:46:50,517 INFO L226 Difference]: Without dead ends: 2811 [2019-11-07 00:46:50,521 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:46:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2811 states. [2019-11-07 00:46:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2811 to 2788. [2019-11-07 00:46:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2788 states. [2019-11-07 00:46:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2788 states to 2788 states and 3846 transitions. [2019-11-07 00:46:50,661 INFO L78 Accepts]: Start accepts. Automaton has 2788 states and 3846 transitions. Word has length 239 [2019-11-07 00:46:50,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:50,662 INFO L462 AbstractCegarLoop]: Abstraction has 2788 states and 3846 transitions. [2019-11-07 00:46:50,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:46:50,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2788 states and 3846 transitions. [2019-11-07 00:46:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-11-07 00:46:50,673 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:50,673 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:50,673 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:50,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:50,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1889171365, now seen corresponding path program 1 times [2019-11-07 00:46:50,674 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:50,674 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307117044] [2019-11-07 00:46:50,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-11-07 00:46:51,000 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307117044] [2019-11-07 00:46:51,000 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:51,000 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:46:51,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127529209] [2019-11-07 00:46:51,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:46:51,002 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:51,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:46:51,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:46:51,003 INFO L87 Difference]: Start difference. First operand 2788 states and 3846 transitions. Second operand 6 states. [2019-11-07 00:46:51,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:51,864 INFO L93 Difference]: Finished difference Result 7106 states and 9776 transitions. [2019-11-07 00:46:51,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:46:51,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2019-11-07 00:46:51,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:51,897 INFO L225 Difference]: With dead ends: 7106 [2019-11-07 00:46:51,897 INFO L226 Difference]: Without dead ends: 5066 [2019-11-07 00:46:51,907 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:46:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2019-11-07 00:46:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 5025. [2019-11-07 00:46:52,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5025 states. [2019-11-07 00:46:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5025 states to 5025 states and 6990 transitions. [2019-11-07 00:46:52,230 INFO L78 Accepts]: Start accepts. Automaton has 5025 states and 6990 transitions. Word has length 240 [2019-11-07 00:46:52,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:52,232 INFO L462 AbstractCegarLoop]: Abstraction has 5025 states and 6990 transitions. [2019-11-07 00:46:52,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:46:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5025 states and 6990 transitions. [2019-11-07 00:46:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2019-11-07 00:46:52,263 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:52,263 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:52,264 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:52,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:52,264 INFO L82 PathProgramCache]: Analyzing trace with hash 852775003, now seen corresponding path program 1 times [2019-11-07 00:46:52,265 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:52,265 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337527487] [2019-11-07 00:46:52,265 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:52,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337527487] [2019-11-07 00:46:52,543 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:52,543 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:52,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115455614] [2019-11-07 00:46:52,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:52,545 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:52,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:52,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:52,546 INFO L87 Difference]: Start difference. First operand 5025 states and 6990 transitions. Second operand 3 states. [2019-11-07 00:46:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:52,698 INFO L93 Difference]: Finished difference Result 10374 states and 14622 transitions. [2019-11-07 00:46:52,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:52,699 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 251 [2019-11-07 00:46:52,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:52,731 INFO L225 Difference]: With dead ends: 10374 [2019-11-07 00:46:52,732 INFO L226 Difference]: Without dead ends: 5464 [2019-11-07 00:46:52,750 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 00:46:52,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5464 states. [2019-11-07 00:46:53,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5464 to 5457. [2019-11-07 00:46:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5457 states. [2019-11-07 00:46:53,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5457 states to 5457 states and 7759 transitions. [2019-11-07 00:46:53,024 INFO L78 Accepts]: Start accepts. Automaton has 5457 states and 7759 transitions. Word has length 251 [2019-11-07 00:46:53,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:53,024 INFO L462 AbstractCegarLoop]: Abstraction has 5457 states and 7759 transitions. [2019-11-07 00:46:53,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5457 states and 7759 transitions. [2019-11-07 00:46:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-11-07 00:46:53,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:53,045 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:53,046 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:53,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:53,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1905759325, now seen corresponding path program 1 times [2019-11-07 00:46:53,046 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:53,046 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930334220] [2019-11-07 00:46:53,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:53,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:53,216 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:53,217 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930334220] [2019-11-07 00:46:53,217 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:53,217 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:53,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41690710] [2019-11-07 00:46:53,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:53,218 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:53,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:53,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:53,219 INFO L87 Difference]: Start difference. First operand 5457 states and 7759 transitions. Second operand 3 states. [2019-11-07 00:46:53,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:53,371 INFO L93 Difference]: Finished difference Result 11638 states and 16873 transitions. [2019-11-07 00:46:53,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:53,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 252 [2019-11-07 00:46:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:53,409 INFO L225 Difference]: With dead ends: 11638 [2019-11-07 00:46:53,409 INFO L226 Difference]: Without dead ends: 6296 [2019-11-07 00:46:53,428 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 00:46:53,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6296 states. [2019-11-07 00:46:53,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6296 to 6289. [2019-11-07 00:46:53,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6289 states. [2019-11-07 00:46:53,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6289 states to 6289 states and 9233 transitions. [2019-11-07 00:46:53,666 INFO L78 Accepts]: Start accepts. Automaton has 6289 states and 9233 transitions. Word has length 252 [2019-11-07 00:46:53,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:53,666 INFO L462 AbstractCegarLoop]: Abstraction has 6289 states and 9233 transitions. [2019-11-07 00:46:53,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:53,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6289 states and 9233 transitions. [2019-11-07 00:46:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-11-07 00:46:53,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:53,692 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:53,693 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:53,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:53,693 INFO L82 PathProgramCache]: Analyzing trace with hash 52663873, now seen corresponding path program 1 times [2019-11-07 00:46:53,693 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:53,694 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786135480] [2019-11-07 00:46:53,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:53,969 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786135480] [2019-11-07 00:46:53,970 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:53,970 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:53,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617125175] [2019-11-07 00:46:53,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:53,971 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:53,971 INFO L87 Difference]: Start difference. First operand 6289 states and 9233 transitions. Second operand 3 states. [2019-11-07 00:46:54,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:54,191 INFO L93 Difference]: Finished difference Result 14070 states and 21183 transitions. [2019-11-07 00:46:54,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:54,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-11-07 00:46:54,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:54,262 INFO L225 Difference]: With dead ends: 14070 [2019-11-07 00:46:54,262 INFO L226 Difference]: Without dead ends: 7896 [2019-11-07 00:46:54,290 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 00:46:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7896 states. [2019-11-07 00:46:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7896 to 7889. [2019-11-07 00:46:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7889 states. [2019-11-07 00:46:54,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 12053 transitions. [2019-11-07 00:46:54,628 INFO L78 Accepts]: Start accepts. Automaton has 7889 states and 12053 transitions. Word has length 253 [2019-11-07 00:46:54,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:54,628 INFO L462 AbstractCegarLoop]: Abstraction has 7889 states and 12053 transitions. [2019-11-07 00:46:54,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:54,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7889 states and 12053 transitions. [2019-11-07 00:46:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-11-07 00:46:54,660 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:54,660 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:54,660 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:54,661 INFO L82 PathProgramCache]: Analyzing trace with hash -700469827, now seen corresponding path program 1 times [2019-11-07 00:46:54,661 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:54,661 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203133105] [2019-11-07 00:46:54,662 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:54,917 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203133105] [2019-11-07 00:46:54,918 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:54,918 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:54,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259314620] [2019-11-07 00:46:54,920 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:54,920 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:54,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:54,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:54,921 INFO L87 Difference]: Start difference. First operand 7889 states and 12053 transitions. Second operand 3 states. [2019-11-07 00:46:55,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:55,242 INFO L93 Difference]: Finished difference Result 18742 states and 29419 transitions. [2019-11-07 00:46:55,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:55,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2019-11-07 00:46:55,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:55,308 INFO L225 Difference]: With dead ends: 18742 [2019-11-07 00:46:55,308 INFO L226 Difference]: Without dead ends: 10968 [2019-11-07 00:46:55,337 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 00:46:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10968 states. [2019-11-07 00:46:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10968 to 10961. [2019-11-07 00:46:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10961 states. [2019-11-07 00:46:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10961 states to 10961 states and 17437 transitions. [2019-11-07 00:46:55,746 INFO L78 Accepts]: Start accepts. Automaton has 10961 states and 17437 transitions. Word has length 254 [2019-11-07 00:46:55,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:55,746 INFO L462 AbstractCegarLoop]: Abstraction has 10961 states and 17437 transitions. [2019-11-07 00:46:55,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:55,746 INFO L276 IsEmpty]: Start isEmpty. Operand 10961 states and 17437 transitions. [2019-11-07 00:46:55,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2019-11-07 00:46:55,795 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:55,795 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:55,796 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:55,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:55,796 INFO L82 PathProgramCache]: Analyzing trace with hash -814717913, now seen corresponding path program 1 times [2019-11-07 00:46:55,796 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:55,796 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228262852] [2019-11-07 00:46:55,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:56,730 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:46:56,731 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228262852] [2019-11-07 00:46:56,731 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:56,731 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:46:56,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681401443] [2019-11-07 00:46:56,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:46:56,732 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:56,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:46:56,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:46:56,733 INFO L87 Difference]: Start difference. First operand 10961 states and 17437 transitions. Second operand 3 states. [2019-11-07 00:46:57,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:46:57,110 INFO L93 Difference]: Finished difference Result 27702 states and 45123 transitions. [2019-11-07 00:46:57,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:46:57,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2019-11-07 00:46:57,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:46:57,181 INFO L225 Difference]: With dead ends: 27702 [2019-11-07 00:46:57,182 INFO L226 Difference]: Without dead ends: 16856 [2019-11-07 00:46:57,229 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 00:46:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16856 states. [2019-11-07 00:46:57,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16856 to 16849. [2019-11-07 00:46:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16849 states. [2019-11-07 00:46:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16849 states to 16849 states and 27693 transitions. [2019-11-07 00:46:57,956 INFO L78 Accepts]: Start accepts. Automaton has 16849 states and 27693 transitions. Word has length 255 [2019-11-07 00:46:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:46:57,958 INFO L462 AbstractCegarLoop]: Abstraction has 16849 states and 27693 transitions. [2019-11-07 00:46:57,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:46:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 16849 states and 27693 transitions. [2019-11-07 00:46:58,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-11-07 00:46:58,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:46:58,023 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:46:58,023 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:46:58,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:46:58,024 INFO L82 PathProgramCache]: Analyzing trace with hash 826554327, now seen corresponding path program 1 times [2019-11-07 00:46:58,024 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:46:58,024 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778752483] [2019-11-07 00:46:58,024 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:46:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:46:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-11-07 00:46:58,240 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778752483] [2019-11-07 00:46:58,240 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:46:58,240 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:46:58,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584816786] [2019-11-07 00:46:58,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:46:58,242 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:46:58,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:46:58,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:46:58,242 INFO L87 Difference]: Start difference. First operand 16849 states and 27693 transitions. Second operand 4 states. [2019-11-07 00:47:00,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:00,408 INFO L93 Difference]: Finished difference Result 50230 states and 83129 transitions. [2019-11-07 00:47:00,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:47:00,408 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 256 [2019-11-07 00:47:00,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:00,538 INFO L225 Difference]: With dead ends: 50230 [2019-11-07 00:47:00,539 INFO L226 Difference]: Without dead ends: 33418 [2019-11-07 00:47:00,574 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:47:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33418 states. [2019-11-07 00:47:02,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33418 to 33415. [2019-11-07 00:47:02,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33415 states. [2019-11-07 00:47:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33415 states to 33415 states and 54945 transitions. [2019-11-07 00:47:02,728 INFO L78 Accepts]: Start accepts. Automaton has 33415 states and 54945 transitions. Word has length 256 [2019-11-07 00:47:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:02,729 INFO L462 AbstractCegarLoop]: Abstraction has 33415 states and 54945 transitions. [2019-11-07 00:47:02,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:47:02,729 INFO L276 IsEmpty]: Start isEmpty. Operand 33415 states and 54945 transitions. [2019-11-07 00:47:02,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2019-11-07 00:47:02,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:02,865 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:47:02,865 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:02,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:02,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1927960127, now seen corresponding path program 1 times [2019-11-07 00:47:02,866 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:02,866 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915255474] [2019-11-07 00:47:02,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:02,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-11-07 00:47:03,125 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915255474] [2019-11-07 00:47:03,125 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:03,125 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:47:03,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999235553] [2019-11-07 00:47:03,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:47:03,127 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:03,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:47:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:47:03,128 INFO L87 Difference]: Start difference. First operand 33415 states and 54945 transitions. Second operand 11 states. [2019-11-07 00:47:03,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:03,778 INFO L93 Difference]: Finished difference Result 33418 states and 54947 transitions. [2019-11-07 00:47:03,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:47:03,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 249 [2019-11-07 00:47:03,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:03,850 INFO L225 Difference]: With dead ends: 33418 [2019-11-07 00:47:03,850 INFO L226 Difference]: Without dead ends: 16824 [2019-11-07 00:47:03,895 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-11-07 00:47:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16824 states. [2019-11-07 00:47:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16824 to 16824. [2019-11-07 00:47:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16824 states. [2019-11-07 00:47:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16824 states to 16824 states and 27623 transitions. [2019-11-07 00:47:04,737 INFO L78 Accepts]: Start accepts. Automaton has 16824 states and 27623 transitions. Word has length 249 [2019-11-07 00:47:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:04,737 INFO L462 AbstractCegarLoop]: Abstraction has 16824 states and 27623 transitions. [2019-11-07 00:47:04,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:47:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 16824 states and 27623 transitions. [2019-11-07 00:47:04,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2019-11-07 00:47:04,786 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:04,787 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:04,787 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:04,787 INFO L82 PathProgramCache]: Analyzing trace with hash 225047104, now seen corresponding path program 1 times [2019-11-07 00:47:04,788 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:04,788 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707178963] [2019-11-07 00:47:04,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:04,973 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-11-07 00:47:04,973 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707178963] [2019-11-07 00:47:04,973 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:04,973 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:04,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546274268] [2019-11-07 00:47:04,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:04,975 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:04,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:04,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:04,976 INFO L87 Difference]: Start difference. First operand 16824 states and 27623 transitions. Second operand 3 states. [2019-11-07 00:47:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:05,406 INFO L93 Difference]: Finished difference Result 33600 states and 55282 transitions. [2019-11-07 00:47:05,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:05,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 274 [2019-11-07 00:47:05,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:05,458 INFO L225 Difference]: With dead ends: 33600 [2019-11-07 00:47:05,459 INFO L226 Difference]: Without dead ends: 16817 [2019-11-07 00:47:05,496 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 00:47:05,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2019-11-07 00:47:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16817. [2019-11-07 00:47:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16817 states. [2019-11-07 00:47:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 27601 transitions. [2019-11-07 00:47:06,344 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 27601 transitions. Word has length 274 [2019-11-07 00:47:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:06,345 INFO L462 AbstractCegarLoop]: Abstraction has 16817 states and 27601 transitions. [2019-11-07 00:47:06,345 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 27601 transitions. [2019-11-07 00:47:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-11-07 00:47:06,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:06,395 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:47:06,395 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:06,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1480022866, now seen corresponding path program 1 times [2019-11-07 00:47:06,396 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:06,396 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602495557] [2019-11-07 00:47:06,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2019-11-07 00:47:06,579 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602495557] [2019-11-07 00:47:06,579 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:06,579 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:47:06,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630411295] [2019-11-07 00:47:06,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:47:06,580 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:06,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:47:06,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:47:06,581 INFO L87 Difference]: Start difference. First operand 16817 states and 27601 transitions. Second operand 4 states. [2019-11-07 00:47:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:07,600 INFO L93 Difference]: Finished difference Result 33568 states and 55122 transitions. [2019-11-07 00:47:07,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:47:07,601 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 284 [2019-11-07 00:47:07,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:07,639 INFO L225 Difference]: With dead ends: 33568 [2019-11-07 00:47:07,640 INFO L226 Difference]: Without dead ends: 16817 [2019-11-07 00:47:07,706 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:47:07,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16817 states. [2019-11-07 00:47:08,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16817 to 16817. [2019-11-07 00:47:08,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16817 states. [2019-11-07 00:47:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16817 states to 16817 states and 26058 transitions. [2019-11-07 00:47:08,413 INFO L78 Accepts]: Start accepts. Automaton has 16817 states and 26058 transitions. Word has length 284 [2019-11-07 00:47:08,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:08,414 INFO L462 AbstractCegarLoop]: Abstraction has 16817 states and 26058 transitions. [2019-11-07 00:47:08,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:47:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 16817 states and 26058 transitions. [2019-11-07 00:47:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-11-07 00:47:08,458 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:08,458 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:47:08,459 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:08,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:08,459 INFO L82 PathProgramCache]: Analyzing trace with hash 523294158, now seen corresponding path program 1 times [2019-11-07 00:47:08,459 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:08,460 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667652320] [2019-11-07 00:47:08,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:08,908 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-11-07 00:47:08,909 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667652320] [2019-11-07 00:47:08,909 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:08,909 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-11-07 00:47:08,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477289343] [2019-11-07 00:47:08,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-07 00:47:08,910 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:08,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-07 00:47:08,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:47:08,911 INFO L87 Difference]: Start difference. First operand 16817 states and 26058 transitions. Second operand 22 states.