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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:05,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:05,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:05,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:05,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:05,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:05,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:05,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:05,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:05,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:05,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:05,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:05,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:05,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:05,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:05,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:05,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:05,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:05,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:05,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:05,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:05,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:05,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:05,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:05,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:05,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:05,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:05,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:05,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:05,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:05,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:05,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:05,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:05,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:05,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:05,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:05,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:05,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:05,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:05,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:05,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:05,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:05,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:05,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:05,897 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:05,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:05,900 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:05,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:05,900 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:05,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:05,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:05,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:05,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:05,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:05,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:05,902 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:05,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:05,902 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:05,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:05,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:05,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:05,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:05,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:05,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:05,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:05,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:05,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:05,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:05,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:05,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:05,906 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 [2019-10-13 21:17:06,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:06,173 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:06,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:06,178 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:06,179 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:06,181 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-13 21:17:06,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5815c232/41fc8ce2a5484cf798cb390ad6c8e9e7/FLAGea8870193 [2019-10-13 21:17:06,921 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:06,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product21.cil.c [2019-10-13 21:17:06,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5815c232/41fc8ce2a5484cf798cb390ad6c8e9e7/FLAGea8870193 [2019-10-13 21:17:07,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5815c232/41fc8ce2a5484cf798cb390ad6c8e9e7 [2019-10-13 21:17:07,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:07,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:07,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:07,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:07,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:07,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eff8284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:07, skipping insertion in model container [2019-10-13 21:17:07,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:07" (1/1) ... [2019-10-13 21:17:07,134 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:07,220 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:08,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:08,050 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:08,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:08,271 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:08,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08 WrapperNode [2019-10-13 21:17:08,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:08,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:08,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:08,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:08,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... [2019-10-13 21:17:08,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:08,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:08,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:08,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:08,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:08,566 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:08,567 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:08,568 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:08,570 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:08,572 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:08,573 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:08,574 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:08,575 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:17:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:08,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:08,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:08,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:08,581 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:08,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:08,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:08,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:08,585 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:08,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:08,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:08,588 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:17:08,589 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:08,590 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:08,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:08,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:08,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:08,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:08,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:08,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:08,598 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 21:17:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 21:17:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:08,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:08,600 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:08,601 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:08,602 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:08,608 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:08,609 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:08,610 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:08,615 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:08,616 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:08,617 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:08,618 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:17:08,619 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:08,620 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:08,621 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:08,622 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:08,623 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:08,624 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:08,625 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:08,626 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:08,627 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:08,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:08,629 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:10,987 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:10,988 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:10,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10 BoogieIcfgContainer [2019-10-13 21:17:10,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:10,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:10,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:10,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:10,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:07" (1/3) ... [2019-10-13 21:17:10,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31863d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:08" (2/3) ... [2019-10-13 21:17:10,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31863d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:10, skipping insertion in model container [2019-10-13 21:17:10,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:10" (3/3) ... [2019-10-13 21:17:10,999 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product21.cil.c [2019-10-13 21:17:11,009 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:11,024 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:11,035 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:11,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:11,084 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:11,084 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:11,084 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:11,084 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:11,085 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:11,085 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:11,085 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states. [2019-10-13 21:17:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 21:17:11,142 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:11,144 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:11,146 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:11,152 INFO L82 PathProgramCache]: Analyzing trace with hash -818881657, now seen corresponding path program 1 times [2019-10-13 21:17:11,162 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:11,163 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687830282] [2019-10-13 21:17:11,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,163 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:11,164 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:11,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687830282] [2019-10-13 21:17:11,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:11,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:11,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37433203] [2019-10-13 21:17:11,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:11,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:11,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:11,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:11,813 INFO L87 Difference]: Start difference. First operand 577 states. Second operand 2 states. [2019-10-13 21:17:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:11,893 INFO L93 Difference]: Finished difference Result 840 states and 1139 transitions. [2019-10-13 21:17:11,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:11,895 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 185 [2019-10-13 21:17:11,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:11,918 INFO L225 Difference]: With dead ends: 840 [2019-10-13 21:17:11,919 INFO L226 Difference]: Without dead ends: 548 [2019-10-13 21:17:11,925 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-13 21:17:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2019-10-13 21:17:12,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-10-13 21:17:12,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 748 transitions. [2019-10-13 21:17:12,040 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 748 transitions. Word has length 185 [2019-10-13 21:17:12,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,046 INFO L462 AbstractCegarLoop]: Abstraction has 548 states and 748 transitions. [2019-10-13 21:17:12,046 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:12,046 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 748 transitions. [2019-10-13 21:17:12,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-13 21:17:12,054 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:12,054 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1630438931, now seen corresponding path program 1 times [2019-10-13 21:17:12,055 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,055 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347012417] [2019-10-13 21:17:12,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,056 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,395 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:12,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347012417] [2019-10-13 21:17:12,396 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,396 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:12,396 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103911428] [2019-10-13 21:17:12,398 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:12,399 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:12,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,399 INFO L87 Difference]: Start difference. First operand 548 states and 748 transitions. Second operand 3 states. [2019-10-13 21:17:12,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,505 INFO L93 Difference]: Finished difference Result 823 states and 1104 transitions. [2019-10-13 21:17:12,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:12,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2019-10-13 21:17:12,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:12,514 INFO L225 Difference]: With dead ends: 823 [2019-10-13 21:17:12,514 INFO L226 Difference]: Without dead ends: 551 [2019-10-13 21:17:12,520 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-13 21:17:12,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 550. [2019-10-13 21:17:12,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-13 21:17:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 750 transitions. [2019-10-13 21:17:12,575 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 750 transitions. Word has length 186 [2019-10-13 21:17:12,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,575 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 750 transitions. [2019-10-13 21:17:12,575 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,576 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 750 transitions. [2019-10-13 21:17:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:17:12,580 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,580 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] [2019-10-13 21:17:12,581 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,581 INFO L82 PathProgramCache]: Analyzing trace with hash -160158177, now seen corresponding path program 1 times [2019-10-13 21:17:12,582 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,582 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49282415] [2019-10-13 21:17:12,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,582 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:12,769 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49282415] [2019-10-13 21:17:12,769 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:12,769 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:12,770 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542905556] [2019-10-13 21:17:12,771 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:12,773 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:12,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:12,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,774 INFO L87 Difference]: Start difference. First operand 550 states and 750 transitions. Second operand 3 states. [2019-10-13 21:17:12,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:12,833 INFO L93 Difference]: Finished difference Result 1078 states and 1501 transitions. [2019-10-13 21:17:12,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:12,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-13 21:17:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:12,844 INFO L225 Difference]: With dead ends: 1078 [2019-10-13 21:17:12,844 INFO L226 Difference]: Without dead ends: 593 [2019-10-13 21:17:12,846 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:12,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2019-10-13 21:17:12,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 592. [2019-10-13 21:17:12,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-10-13 21:17:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 822 transitions. [2019-10-13 21:17:12,891 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 822 transitions. Word has length 192 [2019-10-13 21:17:12,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:12,892 INFO L462 AbstractCegarLoop]: Abstraction has 592 states and 822 transitions. [2019-10-13 21:17:12,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:12,892 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 822 transitions. [2019-10-13 21:17:12,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:17:12,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:12,902 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] [2019-10-13 21:17:12,902 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:12,902 INFO L82 PathProgramCache]: Analyzing trace with hash 245663473, now seen corresponding path program 1 times [2019-10-13 21:17:12,904 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:12,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951991348] [2019-10-13 21:17:12,904 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:12,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:13,408 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951991348] [2019-10-13 21:17:13,408 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:13,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:13,409 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432121160] [2019-10-13 21:17:13,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:13,414 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:13,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:13,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:13,415 INFO L87 Difference]: Start difference. First operand 592 states and 822 transitions. Second operand 11 states. [2019-10-13 21:17:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:19,012 INFO L93 Difference]: Finished difference Result 2870 states and 4070 transitions. [2019-10-13 21:17:19,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 21:17:19,013 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2019-10-13 21:17:19,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:19,040 INFO L225 Difference]: With dead ends: 2870 [2019-10-13 21:17:19,041 INFO L226 Difference]: Without dead ends: 2611 [2019-10-13 21:17:19,045 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 21:17:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2019-10-13 21:17:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2590. [2019-10-13 21:17:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2590 states. [2019-10-13 21:17:19,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2590 states to 2590 states and 3623 transitions. [2019-10-13 21:17:19,212 INFO L78 Accepts]: Start accepts. Automaton has 2590 states and 3623 transitions. Word has length 193 [2019-10-13 21:17:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:19,213 INFO L462 AbstractCegarLoop]: Abstraction has 2590 states and 3623 transitions. [2019-10-13 21:17:19,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:19,213 INFO L276 IsEmpty]: Start isEmpty. Operand 2590 states and 3623 transitions. [2019-10-13 21:17:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:17:19,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:19,219 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] [2019-10-13 21:17:19,219 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:19,220 INFO L82 PathProgramCache]: Analyzing trace with hash 5932126, now seen corresponding path program 1 times [2019-10-13 21:17:19,220 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:19,221 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410612353] [2019-10-13 21:17:19,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,221 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:19,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:19,614 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410612353] [2019-10-13 21:17:19,614 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:19,615 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-13 21:17:19,615 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137187877] [2019-10-13 21:17:19,616 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-13 21:17:19,616 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:19,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-13 21:17:19,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-13 21:17:19,618 INFO L87 Difference]: Start difference. First operand 2590 states and 3623 transitions. Second operand 18 states. [2019-10-13 21:17:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:20,238 INFO L93 Difference]: Finished difference Result 4882 states and 6942 transitions. [2019-10-13 21:17:20,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-13 21:17:20,238 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 194 [2019-10-13 21:17:20,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:20,265 INFO L225 Difference]: With dead ends: 4882 [2019-10-13 21:17:20,266 INFO L226 Difference]: Without dead ends: 2607 [2019-10-13 21:17:20,278 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-13 21:17:20,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2019-10-13 21:17:20,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 2605. [2019-10-13 21:17:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2019-10-13 21:17:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3628 transitions. [2019-10-13 21:17:20,414 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3628 transitions. Word has length 194 [2019-10-13 21:17:20,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:20,415 INFO L462 AbstractCegarLoop]: Abstraction has 2605 states and 3628 transitions. [2019-10-13 21:17:20,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-13 21:17:20,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3628 transitions. [2019-10-13 21:17:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-13 21:17:20,420 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:20,420 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] [2019-10-13 21:17:20,420 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:20,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:20,421 INFO L82 PathProgramCache]: Analyzing trace with hash -129887982, now seen corresponding path program 1 times [2019-10-13 21:17:20,421 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:20,421 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697877714] [2019-10-13 21:17:20,422 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,422 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:20,422 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:20,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697877714] [2019-10-13 21:17:20,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:20,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:17:20,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006921597] [2019-10-13 21:17:20,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:17:20,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:20,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:17:20,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:17:20,607 INFO L87 Difference]: Start difference. First operand 2605 states and 3628 transitions. Second operand 6 states. [2019-10-13 21:17:21,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:21,511 INFO L93 Difference]: Finished difference Result 7541 states and 10662 transitions. [2019-10-13 21:17:21,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:17:21,511 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2019-10-13 21:17:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:21,554 INFO L225 Difference]: With dead ends: 7541 [2019-10-13 21:17:21,555 INFO L226 Difference]: Without dead ends: 5297 [2019-10-13 21:17:21,573 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 [2019-10-13 21:17:21,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2019-10-13 21:17:21,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 5226. [2019-10-13 21:17:21,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5226 states. [2019-10-13 21:17:21,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5226 states to 5226 states and 7370 transitions. [2019-10-13 21:17:21,846 INFO L78 Accepts]: Start accepts. Automaton has 5226 states and 7370 transitions. Word has length 203 [2019-10-13 21:17:21,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:21,848 INFO L462 AbstractCegarLoop]: Abstraction has 5226 states and 7370 transitions. [2019-10-13 21:17:21,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:17:21,849 INFO L276 IsEmpty]: Start isEmpty. Operand 5226 states and 7370 transitions. [2019-10-13 21:17:21,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:17:21,855 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:21,855 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] [2019-10-13 21:17:21,855 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:21,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:21,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1737216113, now seen corresponding path program 1 times [2019-10-13 21:17:21,856 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:21,856 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561073602] [2019-10-13 21:17:21,856 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,857 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:21,857 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:22,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561073602] [2019-10-13 21:17:22,118 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:22,118 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:17:22,118 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494398817] [2019-10-13 21:17:22,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:17:22,119 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:22,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:17:22,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:17:22,120 INFO L87 Difference]: Start difference. First operand 5226 states and 7370 transitions. Second operand 11 states. [2019-10-13 21:17:22,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:22,702 INFO L93 Difference]: Finished difference Result 9853 states and 13893 transitions. [2019-10-13 21:17:22,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:17:22,703 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2019-10-13 21:17:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:22,747 INFO L225 Difference]: With dead ends: 9853 [2019-10-13 21:17:22,747 INFO L226 Difference]: Without dead ends: 5280 [2019-10-13 21:17:22,772 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5280 states. [2019-10-13 21:17:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5280 to 5262. [2019-10-13 21:17:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5262 states. [2019-10-13 21:17:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 7406 transitions. [2019-10-13 21:17:23,147 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 7406 transitions. Word has length 204 [2019-10-13 21:17:23,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:23,148 INFO L462 AbstractCegarLoop]: Abstraction has 5262 states and 7406 transitions. [2019-10-13 21:17:23,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:17:23,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 7406 transitions. [2019-10-13 21:17:23,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:17:23,154 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:23,155 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] [2019-10-13 21:17:23,155 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:23,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:23,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1970975064, now seen corresponding path program 1 times [2019-10-13 21:17:23,156 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:23,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325057869] [2019-10-13 21:17:23,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:23,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:23,351 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:17:23,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325057869] [2019-10-13 21:17:23,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:23,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:17:23,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003810159] [2019-10-13 21:17:23,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:17:23,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:23,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:17:23,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:17:23,354 INFO L87 Difference]: Start difference. First operand 5262 states and 7406 transitions. Second operand 5 states. [2019-10-13 21:17:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:24,997 INFO L93 Difference]: Finished difference Result 19579 states and 27594 transitions. [2019-10-13 21:17:24,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:17:24,998 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2019-10-13 21:17:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:25,100 INFO L225 Difference]: With dead ends: 19579 [2019-10-13 21:17:25,100 INFO L226 Difference]: Without dead ends: 14972 [2019-10-13 21:17:25,127 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 [2019-10-13 21:17:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14972 states. [2019-10-13 21:17:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14972 to 14860. [2019-10-13 21:17:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14860 states. [2019-10-13 21:17:25,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14860 states to 14860 states and 20886 transitions. [2019-10-13 21:17:25,786 INFO L78 Accepts]: Start accepts. Automaton has 14860 states and 20886 transitions. Word has length 204 [2019-10-13 21:17:25,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:25,787 INFO L462 AbstractCegarLoop]: Abstraction has 14860 states and 20886 transitions. [2019-10-13 21:17:25,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:17:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 14860 states and 20886 transitions. [2019-10-13 21:17:25,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-13 21:17:25,800 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:25,800 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:25,801 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:25,801 INFO L82 PathProgramCache]: Analyzing trace with hash -705130534, now seen corresponding path program 1 times [2019-10-13 21:17:25,801 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:25,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711336871] [2019-10-13 21:17:25,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:25,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:17:25,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711336871] [2019-10-13 21:17:25,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:25,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:25,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066210982] [2019-10-13 21:17:25,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:25,998 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:25,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:25,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:25,999 INFO L87 Difference]: Start difference. First operand 14860 states and 20886 transitions. Second operand 3 states. [2019-10-13 21:17:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:26,546 INFO L93 Difference]: Finished difference Result 29999 states and 42332 transitions. [2019-10-13 21:17:26,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:26,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2019-10-13 21:17:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:26,625 INFO L225 Difference]: With dead ends: 29999 [2019-10-13 21:17:26,626 INFO L226 Difference]: Without dead ends: 15204 [2019-10-13 21:17:26,676 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:26,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15204 states. [2019-10-13 21:17:27,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15204 to 15200. [2019-10-13 21:17:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15200 states. [2019-10-13 21:17:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15200 states to 15200 states and 21507 transitions. [2019-10-13 21:17:27,274 INFO L78 Accepts]: Start accepts. Automaton has 15200 states and 21507 transitions. Word has length 233 [2019-10-13 21:17:27,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:27,274 INFO L462 AbstractCegarLoop]: Abstraction has 15200 states and 21507 transitions. [2019-10-13 21:17:27,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:27,275 INFO L276 IsEmpty]: Start isEmpty. Operand 15200 states and 21507 transitions. [2019-10-13 21:17:27,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 21:17:27,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:27,290 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, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:27,290 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:27,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:27,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1132130108, now seen corresponding path program 1 times [2019-10-13 21:17:27,291 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:27,291 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366534645] [2019-10-13 21:17:27,291 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,292 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:27,292 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:28,261 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366534645] [2019-10-13 21:17:28,262 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:28,262 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:28,262 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077071333] [2019-10-13 21:17:28,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:28,264 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:28,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:28,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:28,265 INFO L87 Difference]: Start difference. First operand 15200 states and 21507 transitions. Second operand 3 states. [2019-10-13 21:17:28,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:28,641 INFO L93 Difference]: Finished difference Result 30979 states and 44131 transitions. [2019-10-13 21:17:28,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:28,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-13 21:17:28,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:28,716 INFO L225 Difference]: With dead ends: 30979 [2019-10-13 21:17:28,716 INFO L226 Difference]: Without dead ends: 15844 [2019-10-13 21:17:28,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:28,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15844 states. [2019-10-13 21:17:29,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15844 to 15840. [2019-10-13 21:17:29,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15840 states. [2019-10-13 21:17:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15840 states to 15840 states and 22677 transitions. [2019-10-13 21:17:29,532 INFO L78 Accepts]: Start accepts. Automaton has 15840 states and 22677 transitions. Word has length 240 [2019-10-13 21:17:29,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:29,533 INFO L462 AbstractCegarLoop]: Abstraction has 15840 states and 22677 transitions. [2019-10-13 21:17:29,533 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:29,533 INFO L276 IsEmpty]: Start isEmpty. Operand 15840 states and 22677 transitions. [2019-10-13 21:17:29,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-13 21:17:29,555 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:29,556 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, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:29,556 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:29,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:29,556 INFO L82 PathProgramCache]: Analyzing trace with hash 722288488, now seen corresponding path program 1 times [2019-10-13 21:17:29,557 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:29,557 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692563954] [2019-10-13 21:17:29,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,557 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:29,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:29,811 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:29,811 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692563954] [2019-10-13 21:17:29,811 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:29,812 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:29,812 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938782098] [2019-10-13 21:17:29,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:29,813 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:29,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:29,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:29,813 INFO L87 Difference]: Start difference. First operand 15840 states and 22677 transitions. Second operand 8 states. [2019-10-13 21:17:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:34,848 INFO L93 Difference]: Finished difference Result 47886 states and 70021 transitions. [2019-10-13 21:17:34,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 21:17:34,849 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-13 21:17:34,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:35,010 INFO L225 Difference]: With dead ends: 47886 [2019-10-13 21:17:35,011 INFO L226 Difference]: Without dead ends: 32111 [2019-10-13 21:17:35,064 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 [2019-10-13 21:17:35,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32111 states. [2019-10-13 21:17:36,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32111 to 18256. [2019-10-13 21:17:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18256 states. [2019-10-13 21:17:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18256 states to 18256 states and 27453 transitions. [2019-10-13 21:17:36,148 INFO L78 Accepts]: Start accepts. Automaton has 18256 states and 27453 transitions. Word has length 241 [2019-10-13 21:17:36,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:36,149 INFO L462 AbstractCegarLoop]: Abstraction has 18256 states and 27453 transitions. [2019-10-13 21:17:36,149 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 21:17:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 18256 states and 27453 transitions. [2019-10-13 21:17:36,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-13 21:17:36,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:36,191 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:36,191 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:36,192 INFO L82 PathProgramCache]: Analyzing trace with hash -229240649, now seen corresponding path program 1 times [2019-10-13 21:17:36,192 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:36,192 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292735373] [2019-10-13 21:17:36,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:36,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:36,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:36,386 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:17:36,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292735373] [2019-10-13 21:17:36,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:36,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 21:17:36,387 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147162884] [2019-10-13 21:17:36,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 21:17:36,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:36,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 21:17:36,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-13 21:17:36,389 INFO L87 Difference]: Start difference. First operand 18256 states and 27453 transitions. Second operand 8 states.