java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:11:46,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:11:46,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:11:46,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:11:46,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:11:46,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:11:46,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:11:46,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:11:46,050 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:11:46,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:11:46,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:11:46,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:11:46,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:11:46,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:11:46,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:11:46,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:11:46,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:11:46,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:11:46,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:11:46,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:11:46,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:11:46,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:11:46,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:11:46,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:11:46,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:11:46,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:11:46,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:11:46,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:11:46,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:11:46,092 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:11:46,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:11:46,093 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:11:46,094 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:11:46,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:11:46,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:11:46,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:11:46,097 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:11:46,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:11:46,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:11:46,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:11:46,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:11:46,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:11:46,122 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:11:46,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:11:46,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:11:46,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:11:46,124 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:11:46,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:11:46,125 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:11:46,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:11:46,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:11:46,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:11:46,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:11:46,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:11:46,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:11:46,127 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:11:46,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:11:46,128 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:11:46,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:11:46,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:11:46,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:11:46,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:11:46,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:11:46,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:46,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:11:46,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:11:46,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:11:46,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:11:46,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:11:46,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:11:46,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:11:46,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:11:46,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:11:46,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:11:46,420 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:11:46,420 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:11:46,421 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-15 01:11:46,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512b56f67/6ff3b85272454fcfb08504cfd908754f/FLAG6d89555e6 [2019-10-15 01:11:47,089 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:11:47,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-15 01:11:47,119 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512b56f67/6ff3b85272454fcfb08504cfd908754f/FLAG6d89555e6 [2019-10-15 01:11:47,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512b56f67/6ff3b85272454fcfb08504cfd908754f [2019-10-15 01:11:47,335 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:11:47,337 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:11:47,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:47,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:11:47,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:11:47,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:47" (1/1) ... [2019-10-15 01:11:47,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feeb304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:47, skipping insertion in model container [2019-10-15 01:11:47,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:11:47" (1/1) ... [2019-10-15 01:11:47,352 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:11:47,447 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:11:48,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:48,238 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:11:48,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:11:48,541 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:11:48,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48 WrapperNode [2019-10-15 01:11:48,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:11:48,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:11:48,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:11:48,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:11:48,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... [2019-10-15 01:11:48,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:11:48,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:11:48,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:11:48,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:11:48,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:11:48,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:11:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:11:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:48,852 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:11:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:11:48,853 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:11:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:11:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:11:48,854 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:11:48,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:48,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:11:48,855 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:48,856 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:11:48,856 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:11:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:11:48,857 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:11:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:11:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:11:48,859 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:11:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:11:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:11:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:11:48,860 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:11:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:11:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:11:48,861 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:11:48,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:48,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:11:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:11:48,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:11:48,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:11:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:11:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:11:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:11:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:11:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:11:48,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:11:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:11:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:11:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:11:48,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:11:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:11:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:11:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:11:48,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:11:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:11:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:11:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:11:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:11:48,870 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:11:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:11:48,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:11:48,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:11:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:11:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:11:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:11:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:11:48,874 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:11:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:11:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:11:48,875 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:11:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:11:48,876 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:11:48,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:11:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:11:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:11:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:11:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:11:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:11:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:11:48,881 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:11:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:11:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:11:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:11:48,882 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:11:48,883 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:11:48,884 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:11:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:11:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:11:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:11:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:11:48,885 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:11:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:11:48,886 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:11:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:11:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:11:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:11:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:11:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:11:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:11:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:11:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:11:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:11:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:11:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:11:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:11:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:11:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:11:48,900 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:11:48,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:11:48,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:11:48,904 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:11:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:11:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:11:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:11:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:11:48,905 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:11:48,906 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:11:48,907 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:11:48,908 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 01:11:48,909 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:11:48,910 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:11:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:11:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:11:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:11:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:11:48,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:11:50,888 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:11:50,889 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:11:50,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:50 BoogieIcfgContainer [2019-10-15 01:11:50,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:11:50,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:11:50,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:11:50,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:11:50,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:11:47" (1/3) ... [2019-10-15 01:11:50,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7a87c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:50, skipping insertion in model container [2019-10-15 01:11:50,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:11:48" (2/3) ... [2019-10-15 01:11:50,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7a87c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:11:50, skipping insertion in model container [2019-10-15 01:11:50,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:11:50" (3/3) ... [2019-10-15 01:11:50,901 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2019-10-15 01:11:50,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:11:50,922 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:11:50,934 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:11:50,977 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:11:50,978 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:11:50,978 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:11:50,978 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:11:50,978 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:11:50,978 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:11:50,978 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:11:50,978 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:11:51,016 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states. [2019-10-15 01:11:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-15 01:11:51,050 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:51,053 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:51,056 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:51,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:51,064 INFO L82 PathProgramCache]: Analyzing trace with hash -302652635, now seen corresponding path program 1 times [2019-10-15 01:11:51,076 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:51,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712556560] [2019-10-15 01:11:51,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:51,077 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:51,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:51,703 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:51,705 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712556560] [2019-10-15 01:11:51,707 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:51,708 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:11:51,708 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518384831] [2019-10-15 01:11:51,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:11:51,716 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:51,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:11:51,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:51,733 INFO L87 Difference]: Start difference. First operand 473 states. Second operand 2 states. [2019-10-15 01:11:51,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:51,851 INFO L93 Difference]: Finished difference Result 688 states and 906 transitions. [2019-10-15 01:11:51,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:11:51,853 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-15 01:11:51,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:51,895 INFO L225 Difference]: With dead ends: 688 [2019-10-15 01:11:51,895 INFO L226 Difference]: Without dead ends: 450 [2019-10-15 01:11:51,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:11:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-15 01:11:52,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-10-15 01:11:52,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-10-15 01:11:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 596 transitions. [2019-10-15 01:11:52,013 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 596 transitions. Word has length 189 [2019-10-15 01:11:52,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:52,016 INFO L462 AbstractCegarLoop]: Abstraction has 450 states and 596 transitions. [2019-10-15 01:11:52,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:11:52,016 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 596 transitions. [2019-10-15 01:11:52,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:11:52,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:52,022 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:52,022 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:52,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:52,022 INFO L82 PathProgramCache]: Analyzing trace with hash -182666753, now seen corresponding path program 1 times [2019-10-15 01:11:52,023 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:52,023 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615934425] [2019-10-15 01:11:52,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:52,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615934425] [2019-10-15 01:11:52,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:52,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:52,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569396959] [2019-10-15 01:11:52,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:52,243 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:52,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:52,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:52,243 INFO L87 Difference]: Start difference. First operand 450 states and 596 transitions. Second operand 3 states. [2019-10-15 01:11:52,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:52,331 INFO L93 Difference]: Finished difference Result 671 states and 872 transitions. [2019-10-15 01:11:52,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:52,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:11:52,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:52,337 INFO L225 Difference]: With dead ends: 671 [2019-10-15 01:11:52,338 INFO L226 Difference]: Without dead ends: 453 [2019-10-15 01:11:52,342 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:52,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-15 01:11:52,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-10-15 01:11:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-15 01:11:52,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 598 transitions. [2019-10-15 01:11:52,440 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 598 transitions. Word has length 190 [2019-10-15 01:11:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:52,441 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 598 transitions. [2019-10-15 01:11:52,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 598 transitions. [2019-10-15 01:11:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:11:52,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:52,447 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:52,447 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:52,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:52,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2135910709, now seen corresponding path program 1 times [2019-10-15 01:11:52,450 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:52,450 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520996220] [2019-10-15 01:11:52,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,450 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:11:52,657 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520996220] [2019-10-15 01:11:52,657 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:52,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:11:52,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728982251] [2019-10-15 01:11:52,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:11:52,663 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:52,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:11:52,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:52,664 INFO L87 Difference]: Start difference. First operand 452 states and 598 transitions. Second operand 3 states. [2019-10-15 01:11:52,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:52,713 INFO L93 Difference]: Finished difference Result 880 states and 1194 transitions. [2019-10-15 01:11:52,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:11:52,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-15 01:11:52,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:52,721 INFO L225 Difference]: With dead ends: 880 [2019-10-15 01:11:52,721 INFO L226 Difference]: Without dead ends: 493 [2019-10-15 01:11:52,723 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:11:52,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-15 01:11:52,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 492. [2019-10-15 01:11:52,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2019-10-15 01:11:52,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 667 transitions. [2019-10-15 01:11:52,755 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 667 transitions. Word has length 196 [2019-10-15 01:11:52,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:52,757 INFO L462 AbstractCegarLoop]: Abstraction has 492 states and 667 transitions. [2019-10-15 01:11:52,757 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:11:52,757 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 667 transitions. [2019-10-15 01:11:52,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:11:52,767 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:52,767 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:52,767 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:52,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:52,768 INFO L82 PathProgramCache]: Analyzing trace with hash -318353265, now seen corresponding path program 1 times [2019-10-15 01:11:52,768 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:52,768 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901908280] [2019-10-15 01:11:52,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,769 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:52,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:53,416 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:11:53,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901908280] [2019-10-15 01:11:53,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:53,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:11:53,418 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677261180] [2019-10-15 01:11:53,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:11:53,419 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:53,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:11:53,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:11:53,420 INFO L87 Difference]: Start difference. First operand 492 states and 667 transitions. Second operand 19 states. [2019-10-15 01:11:57,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:57,671 INFO L93 Difference]: Finished difference Result 1632 states and 2213 transitions. [2019-10-15 01:11:57,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:11:57,673 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 197 [2019-10-15 01:11:57,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:57,688 INFO L225 Difference]: With dead ends: 1632 [2019-10-15 01:11:57,689 INFO L226 Difference]: Without dead ends: 1427 [2019-10-15 01:11:57,692 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:11:57,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2019-10-15 01:11:57,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1390. [2019-10-15 01:11:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2019-10-15 01:11:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1897 transitions. [2019-10-15 01:11:57,799 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1897 transitions. Word has length 197 [2019-10-15 01:11:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:57,800 INFO L462 AbstractCegarLoop]: Abstraction has 1390 states and 1897 transitions. [2019-10-15 01:11:57,800 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:11:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1897 transitions. [2019-10-15 01:11:57,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:11:57,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:57,806 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:57,807 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:57,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:57,807 INFO L82 PathProgramCache]: Analyzing trace with hash 309681099, now seen corresponding path program 1 times [2019-10-15 01:11:57,807 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:57,808 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115994306] [2019-10-15 01:11:57,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,808 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:57,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:58,082 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:11:58,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115994306] [2019-10-15 01:11:58,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:58,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:11:58,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245375225] [2019-10-15 01:11:58,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:11:58,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:58,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:11:58,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:11:58,085 INFO L87 Difference]: Start difference. First operand 1390 states and 1897 transitions. Second operand 9 states. [2019-10-15 01:11:58,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:58,402 INFO L93 Difference]: Finished difference Result 2315 states and 3109 transitions. [2019-10-15 01:11:58,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:11:58,403 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 198 [2019-10-15 01:11:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:58,416 INFO L225 Difference]: With dead ends: 2315 [2019-10-15 01:11:58,416 INFO L226 Difference]: Without dead ends: 1436 [2019-10-15 01:11:58,420 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:11:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-10-15 01:11:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2019-10-15 01:11:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2019-10-15 01:11:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1970 transitions. [2019-10-15 01:11:58,518 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1970 transitions. Word has length 198 [2019-10-15 01:11:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:11:58,519 INFO L462 AbstractCegarLoop]: Abstraction has 1436 states and 1970 transitions. [2019-10-15 01:11:58,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:11:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1970 transitions. [2019-10-15 01:11:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:11:58,525 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:11:58,525 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:11:58,526 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:11:58,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:11:58,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1834515197, now seen corresponding path program 1 times [2019-10-15 01:11:58,526 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:11:58,527 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241229260] [2019-10-15 01:11:58,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:58,527 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:11:58,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:11:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:11:58,736 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:11:58,737 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241229260] [2019-10-15 01:11:58,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:11:58,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:11:58,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036914386] [2019-10-15 01:11:58,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:11:58,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:11:58,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:11:58,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:11:58,741 INFO L87 Difference]: Start difference. First operand 1436 states and 1970 transitions. Second operand 5 states. [2019-10-15 01:11:59,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:11:59,897 INFO L93 Difference]: Finished difference Result 3494 states and 4736 transitions. [2019-10-15 01:11:59,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:11:59,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2019-10-15 01:11:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:11:59,925 INFO L225 Difference]: With dead ends: 3494 [2019-10-15 01:11:59,926 INFO L226 Difference]: Without dead ends: 3040 [2019-10-15 01:11:59,931 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:11:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2019-10-15 01:12:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 3020. [2019-10-15 01:12:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2019-10-15 01:12:00,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 4117 transitions. [2019-10-15 01:12:00,170 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 4117 transitions. Word has length 198 [2019-10-15 01:12:00,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:00,171 INFO L462 AbstractCegarLoop]: Abstraction has 3020 states and 4117 transitions. [2019-10-15 01:12:00,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:12:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 4117 transitions. [2019-10-15 01:12:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:12:00,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:00,180 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:00,180 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:00,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:00,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1351636900, now seen corresponding path program 1 times [2019-10-15 01:12:00,181 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:00,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156067603] [2019-10-15 01:12:00,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,181 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:00,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:00,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156067603] [2019-10-15 01:12:00,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:00,435 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:00,435 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392088703] [2019-10-15 01:12:00,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:00,439 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:00,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:00,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:00,440 INFO L87 Difference]: Start difference. First operand 3020 states and 4117 transitions. Second operand 6 states. [2019-10-15 01:12:01,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:01,215 INFO L93 Difference]: Finished difference Result 8271 states and 11200 transitions. [2019-10-15 01:12:01,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:01,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2019-10-15 01:12:01,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:01,261 INFO L225 Difference]: With dead ends: 8271 [2019-10-15 01:12:01,261 INFO L226 Difference]: Without dead ends: 6075 [2019-10-15 01:12:01,270 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:01,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2019-10-15 01:12:01,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 6032. [2019-10-15 01:12:01,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6032 states. [2019-10-15 01:12:01,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8228 transitions. [2019-10-15 01:12:01,627 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8228 transitions. Word has length 198 [2019-10-15 01:12:01,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:01,627 INFO L462 AbstractCegarLoop]: Abstraction has 6032 states and 8228 transitions. [2019-10-15 01:12:01,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:01,628 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8228 transitions. [2019-10-15 01:12:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:12:01,643 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:01,643 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:01,643 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:01,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:01,644 INFO L82 PathProgramCache]: Analyzing trace with hash 156692310, now seen corresponding path program 1 times [2019-10-15 01:12:01,644 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:01,644 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164232142] [2019-10-15 01:12:01,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:01,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:01,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164232142] [2019-10-15 01:12:01,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:01,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:01,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091142141] [2019-10-15 01:12:01,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:01,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:01,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:01,923 INFO L87 Difference]: Start difference. First operand 6032 states and 8228 transitions. Second operand 9 states. [2019-10-15 01:12:02,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:02,280 INFO L93 Difference]: Finished difference Result 11011 states and 14871 transitions. [2019-10-15 01:12:02,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:02,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2019-10-15 01:12:02,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:02,326 INFO L225 Difference]: With dead ends: 11011 [2019-10-15 01:12:02,327 INFO L226 Difference]: Without dead ends: 6562 [2019-10-15 01:12:02,343 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2019-10-15 01:12:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6532. [2019-10-15 01:12:02,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6532 states. [2019-10-15 01:12:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 8968 transitions. [2019-10-15 01:12:02,767 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 8968 transitions. Word has length 199 [2019-10-15 01:12:02,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:02,768 INFO L462 AbstractCegarLoop]: Abstraction has 6532 states and 8968 transitions. [2019-10-15 01:12:02,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:02,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 8968 transitions. [2019-10-15 01:12:02,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:12:02,795 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:02,795 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:02,796 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:02,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:02,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1972860762, now seen corresponding path program 1 times [2019-10-15 01:12:02,797 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:02,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001129955] [2019-10-15 01:12:02,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,798 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:02,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:03,094 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:03,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001129955] [2019-10-15 01:12:03,095 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:03,095 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:03,095 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896576732] [2019-10-15 01:12:03,096 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:03,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:03,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:03,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:03,097 INFO L87 Difference]: Start difference. First operand 6532 states and 8968 transitions. Second operand 6 states. [2019-10-15 01:12:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:03,978 INFO L93 Difference]: Finished difference Result 18148 states and 24739 transitions. [2019-10-15 01:12:03,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:03,979 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2019-10-15 01:12:03,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:04,061 INFO L225 Difference]: With dead ends: 18148 [2019-10-15 01:12:04,061 INFO L226 Difference]: Without dead ends: 13199 [2019-10-15 01:12:04,094 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2019-10-15 01:12:04,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13036. [2019-10-15 01:12:04,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13036 states. [2019-10-15 01:12:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13036 states to 13036 states and 17919 transitions. [2019-10-15 01:12:04,862 INFO L78 Accepts]: Start accepts. Automaton has 13036 states and 17919 transitions. Word has length 200 [2019-10-15 01:12:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:04,862 INFO L462 AbstractCegarLoop]: Abstraction has 13036 states and 17919 transitions. [2019-10-15 01:12:04,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13036 states and 17919 transitions. [2019-10-15 01:12:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:12:04,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:04,891 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:04,891 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:04,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1385655780, now seen corresponding path program 1 times [2019-10-15 01:12:04,891 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:04,892 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284263821] [2019-10-15 01:12:04,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:04,892 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:04,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:05,092 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:05,093 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284263821] [2019-10-15 01:12:05,093 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:05,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:12:05,094 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639088038] [2019-10-15 01:12:05,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:12:05,096 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:05,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:12:05,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:05,097 INFO L87 Difference]: Start difference. First operand 13036 states and 17919 transitions. Second operand 9 states. [2019-10-15 01:12:05,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:05,801 INFO L93 Difference]: Finished difference Result 24391 states and 33443 transitions. [2019-10-15 01:12:05,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:12:05,802 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2019-10-15 01:12:05,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:05,879 INFO L225 Difference]: With dead ends: 24391 [2019-10-15 01:12:05,880 INFO L226 Difference]: Without dead ends: 14456 [2019-10-15 01:12:05,918 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:12:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14456 states. [2019-10-15 01:12:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14456 to 14326. [2019-10-15 01:12:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14326 states. [2019-10-15 01:12:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14326 states to 14326 states and 19899 transitions. [2019-10-15 01:12:06,660 INFO L78 Accepts]: Start accepts. Automaton has 14326 states and 19899 transitions. Word has length 201 [2019-10-15 01:12:06,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:06,661 INFO L462 AbstractCegarLoop]: Abstraction has 14326 states and 19899 transitions. [2019-10-15 01:12:06,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:12:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 14326 states and 19899 transitions. [2019-10-15 01:12:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:12:06,694 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:06,694 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:06,695 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:06,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:06,695 INFO L82 PathProgramCache]: Analyzing trace with hash -221138788, now seen corresponding path program 1 times [2019-10-15 01:12:06,695 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:06,696 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384042316] [2019-10-15 01:12:06,696 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,696 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:06,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:06,909 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:12:06,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384042316] [2019-10-15 01:12:06,910 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:06,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:12:06,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088118906] [2019-10-15 01:12:06,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:12:06,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:12:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:12:06,911 INFO L87 Difference]: Start difference. First operand 14326 states and 19899 transitions. Second operand 6 states. [2019-10-15 01:12:08,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:08,034 INFO L93 Difference]: Finished difference Result 39463 states and 54578 transitions. [2019-10-15 01:12:08,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:12:08,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2019-10-15 01:12:08,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:08,163 INFO L225 Difference]: With dead ends: 39463 [2019-10-15 01:12:08,164 INFO L226 Difference]: Without dead ends: 25937 [2019-10-15 01:12:08,231 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:12:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25937 states. [2019-10-15 01:12:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25937 to 25642. [2019-10-15 01:12:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25642 states. [2019-10-15 01:12:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25642 states to 25642 states and 35837 transitions. [2019-10-15 01:12:10,348 INFO L78 Accepts]: Start accepts. Automaton has 25642 states and 35837 transitions. Word has length 202 [2019-10-15 01:12:10,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:10,349 INFO L462 AbstractCegarLoop]: Abstraction has 25642 states and 35837 transitions. [2019-10-15 01:12:10,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:12:10,349 INFO L276 IsEmpty]: Start isEmpty. Operand 25642 states and 35837 transitions. [2019-10-15 01:12:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:10,400 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:10,401 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:10,401 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:10,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:10,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1368778680, now seen corresponding path program 1 times [2019-10-15 01:12:10,402 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:10,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649612350] [2019-10-15 01:12:10,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:10,402 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:10,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:10,692 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:10,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649612350] [2019-10-15 01:12:10,693 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:10,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:10,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414324196] [2019-10-15 01:12:10,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:10,694 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:10,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:10,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:10,694 INFO L87 Difference]: Start difference. First operand 25642 states and 35837 transitions. Second operand 3 states. [2019-10-15 01:12:11,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:11,416 INFO L93 Difference]: Finished difference Result 53186 states and 75254 transitions. [2019-10-15 01:12:11,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:11,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-15 01:12:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:11,543 INFO L225 Difference]: With dead ends: 53186 [2019-10-15 01:12:11,543 INFO L226 Difference]: Without dead ends: 27607 [2019-10-15 01:12:11,604 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:11,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27607 states. [2019-10-15 01:12:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27607 to 27586. [2019-10-15 01:12:13,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27586 states. [2019-10-15 01:12:13,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27586 states to 27586 states and 39419 transitions. [2019-10-15 01:12:13,150 INFO L78 Accepts]: Start accepts. Automaton has 27586 states and 39419 transitions. Word has length 213 [2019-10-15 01:12:13,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:13,150 INFO L462 AbstractCegarLoop]: Abstraction has 27586 states and 39419 transitions. [2019-10-15 01:12:13,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:13,150 INFO L276 IsEmpty]: Start isEmpty. Operand 27586 states and 39419 transitions. [2019-10-15 01:12:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-15 01:12:13,201 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:13,201 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:13,202 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:13,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:13,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1766066792, now seen corresponding path program 1 times [2019-10-15 01:12:13,202 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:13,203 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341912478] [2019-10-15 01:12:13,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,203 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:13,203 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:13,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:13,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341912478] [2019-10-15 01:12:13,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:13,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:13,328 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226998936] [2019-10-15 01:12:13,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:13,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:13,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:13,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:13,330 INFO L87 Difference]: Start difference. First operand 27586 states and 39419 transitions. Second operand 3 states. [2019-10-15 01:12:14,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:14,283 INFO L93 Difference]: Finished difference Result 58778 states and 85616 transitions. [2019-10-15 01:12:14,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:14,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-15 01:12:14,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:14,433 INFO L225 Difference]: With dead ends: 58778 [2019-10-15 01:12:14,433 INFO L226 Difference]: Without dead ends: 31255 [2019-10-15 01:12:14,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:14,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31255 states. [2019-10-15 01:12:16,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31255 to 31234. [2019-10-15 01:12:16,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31234 states. [2019-10-15 01:12:16,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31234 states to 31234 states and 46151 transitions. [2019-10-15 01:12:16,834 INFO L78 Accepts]: Start accepts. Automaton has 31234 states and 46151 transitions. Word has length 212 [2019-10-15 01:12:16,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:16,835 INFO L462 AbstractCegarLoop]: Abstraction has 31234 states and 46151 transitions. [2019-10-15 01:12:16,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:16,835 INFO L276 IsEmpty]: Start isEmpty. Operand 31234 states and 46151 transitions. [2019-10-15 01:12:16,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-15 01:12:16,889 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:16,889 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:16,889 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:16,890 INFO L82 PathProgramCache]: Analyzing trace with hash -569401298, now seen corresponding path program 1 times [2019-10-15 01:12:16,890 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:16,890 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610449251] [2019-10-15 01:12:16,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,890 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:16,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:12:17,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610449251] [2019-10-15 01:12:17,015 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:17,015 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:17,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392911171] [2019-10-15 01:12:17,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:17,016 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:17,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:17,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:17,017 INFO L87 Difference]: Start difference. First operand 31234 states and 46151 transitions. Second operand 3 states.