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_spec6_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:07,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:07,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:07,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:07,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:07,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:07,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:07,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:07,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:07,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:07,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:07,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:07,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:07,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:07,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:07,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:07,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:07,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:07,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:07,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:07,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:07,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:07,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:07,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:07,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:07,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:07,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:07,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:07,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:07,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:07,211 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:07,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:07,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:07,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:07,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:07,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:07,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:07,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:07,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:07,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:07,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:07,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:07,247 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:07,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:07,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:07,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:07,249 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:07,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:07,250 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:07,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:07,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:07,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:07,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:07,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:07,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:07,251 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:07,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:07,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:07,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:07,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:07,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:07,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:07,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:07,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:07,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:07,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:07,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:07,254 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:07,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:07,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:07,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:07,548 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:07,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:07,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:07,570 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:07,570 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:07,571 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-15 01:16:07,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835a5621f/8c17f96dab184e9b92972599b1c7c654/FLAGb9bdca629 [2019-10-15 01:16:08,261 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:08,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product16.cil.c [2019-10-15 01:16:08,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835a5621f/8c17f96dab184e9b92972599b1c7c654/FLAGb9bdca629 [2019-10-15 01:16:08,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/835a5621f/8c17f96dab184e9b92972599b1c7c654 [2019-10-15 01:16:08,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:08,495 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:08,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:08,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:08,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:08,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:08" (1/1) ... [2019-10-15 01:16:08,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3264c97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:08, skipping insertion in model container [2019-10-15 01:16:08,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:08" (1/1) ... [2019-10-15 01:16:08,509 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:08,590 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:09,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:09,320 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:09,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:09,523 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:09,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09 WrapperNode [2019-10-15 01:16:09,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:09,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:09,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:09,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:09,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... [2019-10-15 01:16:09,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:09,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:09,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:09,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:09,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:09,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:16:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:09,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:09,744 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:09,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:09,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:09,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:09,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:09,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:09,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:09,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:09,753 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:09,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:09,755 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:16:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:09,756 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:09,757 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:16:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:09,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:09,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:09,760 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:09,761 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:09,762 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:09,763 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:09,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:09,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:09,766 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:09,767 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:09,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:09,769 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:09,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:09,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:09,773 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:09,774 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:16:09,775 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:16:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:09,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:11,959 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:11,959 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:11,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:11 BoogieIcfgContainer [2019-10-15 01:16:11,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:11,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:11,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:11,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:11,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:08" (1/3) ... [2019-10-15 01:16:11,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df8e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:11, skipping insertion in model container [2019-10-15 01:16:11,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:09" (2/3) ... [2019-10-15 01:16:11,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17df8e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:11, skipping insertion in model container [2019-10-15 01:16:11,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:11" (3/3) ... [2019-10-15 01:16:11,972 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product16.cil.c [2019-10-15 01:16:11,983 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:11,994 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:12,006 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:12,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:12,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:12,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:12,062 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:12,062 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:12,062 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:12,062 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:12,062 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states. [2019-10-15 01:16:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:16:12,143 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:12,145 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:12,149 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:12,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:12,160 INFO L82 PathProgramCache]: Analyzing trace with hash -610566367, now seen corresponding path program 1 times [2019-10-15 01:16:12,173 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:12,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069234958] [2019-10-15 01:16:12,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:12,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:12,893 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:12,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069234958] [2019-10-15 01:16:12,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:12,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:12,896 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323211928] [2019-10-15 01:16:12,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:12,903 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:12,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:12,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:12,921 INFO L87 Difference]: Start difference. First operand 484 states. Second operand 2 states. [2019-10-15 01:16:13,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,016 INFO L93 Difference]: Finished difference Result 710 states and 934 transitions. [2019-10-15 01:16:13,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:13,020 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-15 01:16:13,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,051 INFO L225 Difference]: With dead ends: 710 [2019-10-15 01:16:13,052 INFO L226 Difference]: Without dead ends: 461 [2019-10-15 01:16:13,058 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:13,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-15 01:16:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2019-10-15 01:16:13,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-15 01:16:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 611 transitions. [2019-10-15 01:16:13,193 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 611 transitions. Word has length 176 [2019-10-15 01:16:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,196 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 611 transitions. [2019-10-15 01:16:13,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:13,196 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 611 transitions. [2019-10-15 01:16:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:16:13,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:13,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:13,202 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1997838255, now seen corresponding path program 1 times [2019-10-15 01:16:13,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026983290] [2019-10-15 01:16:13,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:13,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026983290] [2019-10-15 01:16:13,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:13,388 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:13,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848914456] [2019-10-15 01:16:13,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:13,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:13,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:13,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:13,391 INFO L87 Difference]: Start difference. First operand 461 states and 611 transitions. Second operand 3 states. [2019-10-15 01:16:13,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,470 INFO L93 Difference]: Finished difference Result 693 states and 902 transitions. [2019-10-15 01:16:13,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:13,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 01:16:13,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,478 INFO L225 Difference]: With dead ends: 693 [2019-10-15 01:16:13,479 INFO L226 Difference]: Without dead ends: 464 [2019-10-15 01:16:13,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:13,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-15 01:16:13,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 463. [2019-10-15 01:16:13,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-15 01:16:13,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 613 transitions. [2019-10-15 01:16:13,522 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 613 transitions. Word has length 177 [2019-10-15 01:16:13,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,523 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 613 transitions. [2019-10-15 01:16:13,523 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:13,523 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 613 transitions. [2019-10-15 01:16:13,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:16:13,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:13,527 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:13,527 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,527 INFO L82 PathProgramCache]: Analyzing trace with hash 47308899, now seen corresponding path program 1 times [2019-10-15 01:16:13,528 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359521504] [2019-10-15 01:16:13,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:13,749 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359521504] [2019-10-15 01:16:13,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:13,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:13,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112290283] [2019-10-15 01:16:13,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:13,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:13,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:13,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:13,755 INFO L87 Difference]: Start difference. First operand 463 states and 613 transitions. Second operand 3 states. [2019-10-15 01:16:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,831 INFO L93 Difference]: Finished difference Result 902 states and 1224 transitions. [2019-10-15 01:16:13,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:13,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-15 01:16:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,840 INFO L225 Difference]: With dead ends: 902 [2019-10-15 01:16:13,840 INFO L226 Difference]: Without dead ends: 504 [2019-10-15 01:16:13,843 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2019-10-15 01:16:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2019-10-15 01:16:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 503 states. [2019-10-15 01:16:13,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 682 transitions. [2019-10-15 01:16:13,889 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 682 transitions. Word has length 183 [2019-10-15 01:16:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,890 INFO L462 AbstractCegarLoop]: Abstraction has 503 states and 682 transitions. [2019-10-15 01:16:13,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:13,890 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 682 transitions. [2019-10-15 01:16:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:16:13,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:13,904 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:13,905 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,905 INFO L82 PathProgramCache]: Analyzing trace with hash 142664055, now seen corresponding path program 1 times [2019-10-15 01:16:13,906 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,906 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606387718] [2019-10-15 01:16:13,906 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,907 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:14,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606387718] [2019-10-15 01:16:14,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:14,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:14,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427025286] [2019-10-15 01:16:14,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:14,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:14,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:14,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:14,354 INFO L87 Difference]: Start difference. First operand 503 states and 682 transitions. Second operand 11 states. [2019-10-15 01:16:18,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:18,721 INFO L93 Difference]: Finished difference Result 2270 states and 3005 transitions. [2019-10-15 01:16:18,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:18,724 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2019-10-15 01:16:18,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:18,739 INFO L225 Difference]: With dead ends: 2270 [2019-10-15 01:16:18,739 INFO L226 Difference]: Without dead ends: 1788 [2019-10-15 01:16:18,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2019-10-15 01:16:18,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1773. [2019-10-15 01:16:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2019-10-15 01:16:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2323 transitions. [2019-10-15 01:16:18,855 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2323 transitions. Word has length 184 [2019-10-15 01:16:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,856 INFO L462 AbstractCegarLoop]: Abstraction has 1773 states and 2323 transitions. [2019-10-15 01:16:18,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2323 transitions. [2019-10-15 01:16:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:16:18,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,860 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,860 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1260234417, now seen corresponding path program 1 times [2019-10-15 01:16:18,861 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085306169] [2019-10-15 01:16:18,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,153 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:19,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085306169] [2019-10-15 01:16:19,154 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,154 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:16:19,154 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722638988] [2019-10-15 01:16:19,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:19,155 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:19,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:19,156 INFO L87 Difference]: Start difference. First operand 1773 states and 2323 transitions. Second operand 16 states. [2019-10-15 01:16:19,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,644 INFO L93 Difference]: Finished difference Result 3058 states and 3982 transitions. [2019-10-15 01:16:19,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:16:19,644 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 185 [2019-10-15 01:16:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,654 INFO L225 Difference]: With dead ends: 3058 [2019-10-15 01:16:19,654 INFO L226 Difference]: Without dead ends: 1440 [2019-10-15 01:16:19,659 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:16:19,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2019-10-15 01:16:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1393. [2019-10-15 01:16:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1393 states. [2019-10-15 01:16:19,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1820 transitions. [2019-10-15 01:16:19,725 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1820 transitions. Word has length 185 [2019-10-15 01:16:19,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:19,726 INFO L462 AbstractCegarLoop]: Abstraction has 1393 states and 1820 transitions. [2019-10-15 01:16:19,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1820 transitions. [2019-10-15 01:16:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:19,729 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:19,730 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:19,730 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:19,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash 2110369116, now seen corresponding path program 1 times [2019-10-15 01:16:19,731 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:19,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748693584] [2019-10-15 01:16:19,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:19,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:19,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748693584] [2019-10-15 01:16:19,960 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,960 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:19,960 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447467118] [2019-10-15 01:16:19,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:19,961 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:19,962 INFO L87 Difference]: Start difference. First operand 1393 states and 1820 transitions. Second operand 6 states. [2019-10-15 01:16:20,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:20,721 INFO L93 Difference]: Finished difference Result 3855 states and 5015 transitions. [2019-10-15 01:16:20,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:20,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2019-10-15 01:16:20,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:20,743 INFO L225 Difference]: With dead ends: 3855 [2019-10-15 01:16:20,743 INFO L226 Difference]: Without dead ends: 2777 [2019-10-15 01:16:20,747 INFO L600 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 [2019-10-15 01:16:20,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2019-10-15 01:16:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2706. [2019-10-15 01:16:20,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2706 states. [2019-10-15 01:16:20,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 3557 transitions. [2019-10-15 01:16:20,891 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 3557 transitions. Word has length 194 [2019-10-15 01:16:20,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:20,892 INFO L462 AbstractCegarLoop]: Abstraction has 2706 states and 3557 transitions. [2019-10-15 01:16:20,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 3557 transitions. [2019-10-15 01:16:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:20,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,897 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,898 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,898 INFO L82 PathProgramCache]: Analyzing trace with hash 589326950, now seen corresponding path program 1 times [2019-10-15 01:16:20,898 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311932536] [2019-10-15 01:16:20,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,899 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:21,165 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:21,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311932536] [2019-10-15 01:16:21,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:21,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:21,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474424673] [2019-10-15 01:16:21,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:21,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:21,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:21,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:21,168 INFO L87 Difference]: Start difference. First operand 2706 states and 3557 transitions. Second operand 5 states. [2019-10-15 01:16:22,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:22,258 INFO L93 Difference]: Finished difference Result 9715 states and 12616 transitions. [2019-10-15 01:16:22,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:22,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2019-10-15 01:16:22,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:22,310 INFO L225 Difference]: With dead ends: 9715 [2019-10-15 01:16:22,311 INFO L226 Difference]: Without dead ends: 7570 [2019-10-15 01:16:22,324 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:22,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7570 states. [2019-10-15 01:16:22,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7570 to 7434. [2019-10-15 01:16:22,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7434 states. [2019-10-15 01:16:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 9721 transitions. [2019-10-15 01:16:22,822 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 9721 transitions. Word has length 195 [2019-10-15 01:16:22,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:22,823 INFO L462 AbstractCegarLoop]: Abstraction has 7434 states and 9721 transitions. [2019-10-15 01:16:22,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:22,823 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 9721 transitions. [2019-10-15 01:16:22,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:22,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:22,837 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:22,837 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:22,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:22,838 INFO L82 PathProgramCache]: Analyzing trace with hash 2550831, now seen corresponding path program 1 times [2019-10-15 01:16:22,839 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:22,840 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272807494] [2019-10-15 01:16:22,840 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,840 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:22,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:23,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272807494] [2019-10-15 01:16:23,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:23,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:16:23,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783500690] [2019-10-15 01:16:23,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:23,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:23,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:23,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:23,127 INFO L87 Difference]: Start difference. First operand 7434 states and 9721 transitions. Second operand 9 states. [2019-10-15 01:16:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,724 INFO L93 Difference]: Finished difference Result 12593 states and 16204 transitions. [2019-10-15 01:16:23,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:23,725 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-15 01:16:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,761 INFO L225 Difference]: With dead ends: 12593 [2019-10-15 01:16:23,762 INFO L226 Difference]: Without dead ends: 6302 [2019-10-15 01:16:23,781 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:16:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6302 states. [2019-10-15 01:16:24,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6302 to 6112. [2019-10-15 01:16:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6112 states. [2019-10-15 01:16:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6112 states to 6112 states and 8005 transitions. [2019-10-15 01:16:24,187 INFO L78 Accepts]: Start accepts. Automaton has 6112 states and 8005 transitions. Word has length 195 [2019-10-15 01:16:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:24,190 INFO L462 AbstractCegarLoop]: Abstraction has 6112 states and 8005 transitions. [2019-10-15 01:16:24,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6112 states and 8005 transitions. [2019-10-15 01:16:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-15 01:16:24,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:24,205 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:24,205 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:24,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:24,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2087107406, now seen corresponding path program 1 times [2019-10-15 01:16:24,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:24,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950427704] [2019-10-15 01:16:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:24,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:24,430 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950427704] [2019-10-15 01:16:24,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:24,433 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:24,433 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588463016] [2019-10-15 01:16:24,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:24,436 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:24,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:24,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:24,437 INFO L87 Difference]: Start difference. First operand 6112 states and 8005 transitions. Second operand 3 states. [2019-10-15 01:16:24,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:24,733 INFO L93 Difference]: Finished difference Result 12487 states and 16546 transitions. [2019-10-15 01:16:24,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:24,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-10-15 01:16:24,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:24,800 INFO L225 Difference]: With dead ends: 12487 [2019-10-15 01:16:24,800 INFO L226 Difference]: Without dead ends: 6440 [2019-10-15 01:16:24,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6440 states. [2019-10-15 01:16:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6440 to 6436. [2019-10-15 01:16:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6436 states. [2019-10-15 01:16:25,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6436 states to 6436 states and 8602 transitions. [2019-10-15 01:16:25,268 INFO L78 Accepts]: Start accepts. Automaton has 6436 states and 8602 transitions. Word has length 224 [2019-10-15 01:16:25,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,268 INFO L462 AbstractCegarLoop]: Abstraction has 6436 states and 8602 transitions. [2019-10-15 01:16:25,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:25,269 INFO L276 IsEmpty]: Start isEmpty. Operand 6436 states and 8602 transitions. [2019-10-15 01:16:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:16:25,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,296 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:25,296 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1404923970, now seen corresponding path program 1 times [2019-10-15 01:16:25,297 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,298 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051795536] [2019-10-15 01:16:25,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,298 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,298 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,751 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:25,752 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051795536] [2019-10-15 01:16:25,753 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,753 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:25,754 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810501329] [2019-10-15 01:16:25,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:25,757 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:25,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:25,758 INFO L87 Difference]: Start difference. First operand 6436 states and 8602 transitions. Second operand 3 states. [2019-10-15 01:16:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:26,102 INFO L93 Difference]: Finished difference Result 13419 states and 18273 transitions. [2019-10-15 01:16:26,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:26,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-15 01:16:26,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:26,154 INFO L225 Difference]: With dead ends: 13419 [2019-10-15 01:16:26,154 INFO L226 Difference]: Without dead ends: 7048 [2019-10-15 01:16:26,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:26,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7048 states. [2019-10-15 01:16:26,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7048 to 7044. [2019-10-15 01:16:26,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7044 states. [2019-10-15 01:16:26,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7044 states to 7044 states and 9724 transitions. [2019-10-15 01:16:26,686 INFO L78 Accepts]: Start accepts. Automaton has 7044 states and 9724 transitions. Word has length 225 [2019-10-15 01:16:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:26,686 INFO L462 AbstractCegarLoop]: Abstraction has 7044 states and 9724 transitions. [2019-10-15 01:16:26,687 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:26,687 INFO L276 IsEmpty]: Start isEmpty. Operand 7044 states and 9724 transitions. [2019-10-15 01:16:26,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-15 01:16:26,720 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:26,720 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 01:16:26,721 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:26,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash 671591012, now seen corresponding path program 1 times [2019-10-15 01:16:26,722 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:26,722 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196587911] [2019-10-15 01:16:26,722 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:26,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:27,026 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196587911] [2019-10-15 01:16:27,026 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:27,026 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:27,026 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213916408] [2019-10-15 01:16:27,027 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:27,027 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:27,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:27,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:27,028 INFO L87 Difference]: Start difference. First operand 7044 states and 9724 transitions. Second operand 8 states. [2019-10-15 01:16:31,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,341 INFO L93 Difference]: Finished difference Result 21498 states and 31162 transitions. [2019-10-15 01:16:31,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:31,341 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2019-10-15 01:16:31,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,415 INFO L225 Difference]: With dead ends: 21498 [2019-10-15 01:16:31,415 INFO L226 Difference]: Without dead ends: 14519 [2019-10-15 01:16:31,447 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:31,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14519 states. [2019-10-15 01:16:31,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14519 to 9228. [2019-10-15 01:16:31,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9228 states. [2019-10-15 01:16:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9228 states to 9228 states and 14128 transitions. [2019-10-15 01:16:31,996 INFO L78 Accepts]: Start accepts. Automaton has 9228 states and 14128 transitions. Word has length 232 [2019-10-15 01:16:31,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:31,999 INFO L462 AbstractCegarLoop]: Abstraction has 9228 states and 14128 transitions. [2019-10-15 01:16:32,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9228 states and 14128 transitions. [2019-10-15 01:16:32,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 01:16:32,040 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,041 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,041 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1330903419, now seen corresponding path program 1 times [2019-10-15 01:16:32,042 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,042 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402521794] [2019-10-15 01:16:32,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,043 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,274 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:32,274 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402521794] [2019-10-15 01:16:32,274 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,275 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:32,275 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911909435] [2019-10-15 01:16:32,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:32,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:32,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:32,276 INFO L87 Difference]: Start difference. First operand 9228 states and 14128 transitions. Second operand 8 states. [2019-10-15 01:16:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:37,247 INFO L93 Difference]: Finished difference Result 28586 states and 46622 transitions. [2019-10-15 01:16:37,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:37,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-15 01:16:37,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:37,395 INFO L225 Difference]: With dead ends: 28586 [2019-10-15 01:16:37,395 INFO L226 Difference]: Without dead ends: 19423 [2019-10-15 01:16:37,455 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:37,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19423 states. [2019-10-15 01:16:38,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19423 to 13716. [2019-10-15 01:16:38,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13716 states. [2019-10-15 01:16:38,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13716 states to 13716 states and 23776 transitions. [2019-10-15 01:16:38,636 INFO L78 Accepts]: Start accepts. Automaton has 13716 states and 23776 transitions. Word has length 227 [2019-10-15 01:16:38,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:38,637 INFO L462 AbstractCegarLoop]: Abstraction has 13716 states and 23776 transitions. [2019-10-15 01:16:38,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand 13716 states and 23776 transitions. [2019-10-15 01:16:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-10-15 01:16:39,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:39,031 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-15 01:16:39,032 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:39,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:39,032 INFO L82 PathProgramCache]: Analyzing trace with hash 2060178440, now seen corresponding path program 1 times [2019-10-15 01:16:39,033 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:39,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267296562] [2019-10-15 01:16:39,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:39,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:39,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat