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_spec11_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:13:30,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:13:30,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:13:30,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:13:30,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:13:30,952 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:13:30,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:13:30,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:13:30,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:13:30,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:13:30,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:13:30,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:13:30,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:13:30,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:13:30,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:13:30,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:13:30,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:13:30,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:13:30,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:13:30,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:13:30,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:13:30,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:13:31,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:13:31,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:13:31,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:13:31,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:13:31,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:13:31,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:13:31,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:13:31,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:13:31,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:13:31,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:13:31,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:13:31,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:13:31,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:13:31,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:13:31,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:13:31,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:13:31,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:13:31,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:13:31,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:13:31,023 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:13:31,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:13:31,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:13:31,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:13:31,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:13:31,046 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:13:31,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:13:31,046 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:13:31,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:13:31,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:13:31,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:13:31,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:13:31,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:13:31,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:13:31,049 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:13:31,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:13:31,049 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:13:31,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:13:31,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:13:31,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:13:31,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:13:31,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:13:31,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:31,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:13:31,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:13:31,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:13:31,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:13:31,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:13:31,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:13:31,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:13:31,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:13:31,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:13:31,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:13:31,368 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:13:31,368 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:13:31,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-13 21:13:31,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd80718/564083d2d10145459132acd6b92130b1/FLAG679158229 [2019-10-13 21:13:32,136 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:13:32,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product20.cil.c [2019-10-13 21:13:32,156 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd80718/564083d2d10145459132acd6b92130b1/FLAG679158229 [2019-10-13 21:13:32,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4fd80718/564083d2d10145459132acd6b92130b1 [2019-10-13 21:13:32,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:13:32,397 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:13:32,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:32,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:13:32,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:13:32,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:32" (1/1) ... [2019-10-13 21:13:32,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4772fc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:32, skipping insertion in model container [2019-10-13 21:13:32,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:13:32" (1/1) ... [2019-10-13 21:13:32,412 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:13:32,503 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:13:33,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:33,280 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:13:33,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:13:33,482 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:13:33,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33 WrapperNode [2019-10-13 21:13:33,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:13:33,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:13:33,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:13:33,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:13:33,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... [2019-10-13 21:13:33,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:13:33,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:13:33,662 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:13:33,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:13:33,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:13:33,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:13:33,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:13:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:13:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:13:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:13:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:33,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:13:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:33,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:13:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:13:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:13:33,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:13:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:13:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:13:33,765 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:13:33,768 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:13:33,769 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:13:33,769 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:13:33,769 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:13:33,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:13:33,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:13:33,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:13:33,770 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:13:33,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-13 21:13:33,770 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:13:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:13:33,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:13:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:13:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:13:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:13:33,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:13:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:13:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:13:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:13:33,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:13:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:13:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:13:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:13:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:13:33,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:13:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:13:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:13:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:13:33,775 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:13:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:13:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:13:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:13:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:13:33,776 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:13:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:13:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:13:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:13:33,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:13:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:13:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:13:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:13:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:13:33,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:33,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:33,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:33,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:13:33,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:13:33,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:13:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:13:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:13:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:13:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:33,782 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:13:33,782 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:13:33,782 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:33,782 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:33,783 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:13:33,783 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:13:33,784 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:13:33,784 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:13:33,784 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:13:33,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:13:33,785 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:13:33,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:13:33,785 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:13:33,785 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:13:33,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-13 21:13:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:13:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:13:33,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:13:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:13:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:13:33,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:13:33,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:13:33,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:13:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:13:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:13:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:13:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:13:33,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:13:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:13:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:13:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:13:33,792 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:13:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:13:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:13:33,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:13:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:13:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:13:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:13:33,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:13:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:13:33,795 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:13:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:13:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:13:33,796 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:13:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:13:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:13:33,801 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:13:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:13:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:13:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:13:33,802 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:13:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:13:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:13:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:13:33,803 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:13:33,804 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:13:33,805 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:13:33,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:13:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:13:33,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:13:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:13:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:13:33,811 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:13:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:13:33,818 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:13:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:13:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:13:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:13:33,819 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:13:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:13:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:13:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:13:33,823 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:13:33,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:13:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:13:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:13:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:13:33,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:13:33,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:13:33,828 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:13:33,829 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:13:33,830 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:13:33,831 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-13 21:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:13:33,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:13:33,833 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:13:33,834 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:13:33,835 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:13:33,836 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:13:33,837 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:13:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:13:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:13:33,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:13:36,124 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:13:36,125 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:13:36,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:36 BoogieIcfgContainer [2019-10-13 21:13:36,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:13:36,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:13:36,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:13:36,133 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:13:36,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:13:32" (1/3) ... [2019-10-13 21:13:36,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dc76a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:36, skipping insertion in model container [2019-10-13 21:13:36,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:13:33" (2/3) ... [2019-10-13 21:13:36,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29dc76a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:13:36, skipping insertion in model container [2019-10-13 21:13:36,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:13:36" (3/3) ... [2019-10-13 21:13:36,138 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product20.cil.c [2019-10-13 21:13:36,150 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:13:36,168 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:13:36,179 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:13:36,226 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:13:36,227 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:13:36,227 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:13:36,227 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:13:36,227 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:13:36,227 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:13:36,227 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:13:36,228 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:13:36,273 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states. [2019-10-13 21:13:36,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-13 21:13:36,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:36,319 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:36,323 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:36,332 INFO L82 PathProgramCache]: Analyzing trace with hash 598149460, now seen corresponding path program 1 times [2019-10-13 21:13:36,344 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:36,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572134980] [2019-10-13 21:13:36,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:36,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:36,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:37,084 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572134980] [2019-10-13 21:13:37,085 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:37,085 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:13:37,086 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107628947] [2019-10-13 21:13:37,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:13:37,092 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:37,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:13:37,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:37,109 INFO L87 Difference]: Start difference. First operand 556 states. Second operand 2 states. [2019-10-13 21:13:37,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:37,201 INFO L93 Difference]: Finished difference Result 772 states and 1053 transitions. [2019-10-13 21:13:37,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:13:37,202 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-10-13 21:13:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:37,225 INFO L225 Difference]: With dead ends: 772 [2019-10-13 21:13:37,226 INFO L226 Difference]: Without dead ends: 514 [2019-10-13 21:13:37,233 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:13:37,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2019-10-13 21:13:37,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2019-10-13 21:13:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2019-10-13 21:13:37,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 704 transitions. [2019-10-13 21:13:37,367 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 704 transitions. Word has length 193 [2019-10-13 21:13:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:37,371 INFO L462 AbstractCegarLoop]: Abstraction has 514 states and 704 transitions. [2019-10-13 21:13:37,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:13:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 704 transitions. [2019-10-13 21:13:37,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-13 21:13:37,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:37,383 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:37,383 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:37,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash -736139474, now seen corresponding path program 1 times [2019-10-13 21:13:37,384 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:37,384 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123496934] [2019-10-13 21:13:37,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,384 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,385 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:37,703 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123496934] [2019-10-13 21:13:37,703 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:37,703 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:37,703 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193463627] [2019-10-13 21:13:37,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:37,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:37,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:37,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:37,712 INFO L87 Difference]: Start difference. First operand 514 states and 704 transitions. Second operand 3 states. [2019-10-13 21:13:37,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:37,802 INFO L93 Difference]: Finished difference Result 755 states and 1016 transitions. [2019-10-13 21:13:37,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:37,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2019-10-13 21:13:37,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:37,815 INFO L225 Difference]: With dead ends: 755 [2019-10-13 21:13:37,815 INFO L226 Difference]: Without dead ends: 517 [2019-10-13 21:13:37,819 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:37,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2019-10-13 21:13:37,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 516. [2019-10-13 21:13:37,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2019-10-13 21:13:37,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 706 transitions. [2019-10-13 21:13:37,867 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 706 transitions. Word has length 194 [2019-10-13 21:13:37,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:37,868 INFO L462 AbstractCegarLoop]: Abstraction has 516 states and 706 transitions. [2019-10-13 21:13:37,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 706 transitions. [2019-10-13 21:13:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-13 21:13:37,876 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:37,876 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:37,877 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:37,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1382957214, now seen corresponding path program 1 times [2019-10-13 21:13:37,877 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:37,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858672048] [2019-10-13 21:13:37,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:37,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:38,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858672048] [2019-10-13 21:13:38,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:38,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:38,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504154233] [2019-10-13 21:13:38,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:38,126 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:38,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:38,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,127 INFO L87 Difference]: Start difference. First operand 516 states and 706 transitions. Second operand 3 states. [2019-10-13 21:13:38,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:38,177 INFO L93 Difference]: Finished difference Result 1010 states and 1413 transitions. [2019-10-13 21:13:38,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:38,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2019-10-13 21:13:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:38,183 INFO L225 Difference]: With dead ends: 1010 [2019-10-13 21:13:38,184 INFO L226 Difference]: Without dead ends: 559 [2019-10-13 21:13:38,186 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2019-10-13 21:13:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 558. [2019-10-13 21:13:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2019-10-13 21:13:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 778 transitions. [2019-10-13 21:13:38,209 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 778 transitions. Word has length 204 [2019-10-13 21:13:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:38,210 INFO L462 AbstractCegarLoop]: Abstraction has 558 states and 778 transitions. [2019-10-13 21:13:38,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 778 transitions. [2019-10-13 21:13:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:13:38,215 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:38,215 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:38,215 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:38,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:38,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1870197346, now seen corresponding path program 1 times [2019-10-13 21:13:38,216 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:38,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585763203] [2019-10-13 21:13:38,216 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:38,515 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:38,516 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585763203] [2019-10-13 21:13:38,516 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:38,517 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:38,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069115051] [2019-10-13 21:13:38,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:38,518 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:38,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:38,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,519 INFO L87 Difference]: Start difference. First operand 558 states and 778 transitions. Second operand 3 states. [2019-10-13 21:13:38,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:38,582 INFO L93 Difference]: Finished difference Result 1133 states and 1624 transitions. [2019-10-13 21:13:38,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:38,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-13 21:13:38,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:38,594 INFO L225 Difference]: With dead ends: 1133 [2019-10-13 21:13:38,594 INFO L226 Difference]: Without dead ends: 640 [2019-10-13 21:13:38,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-10-13 21:13:38,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 639. [2019-10-13 21:13:38,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-13 21:13:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 916 transitions. [2019-10-13 21:13:38,643 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 916 transitions. Word has length 205 [2019-10-13 21:13:38,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:38,644 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 916 transitions. [2019-10-13 21:13:38,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 916 transitions. [2019-10-13 21:13:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-13 21:13:38,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:38,654 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:38,654 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:38,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:38,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1813440642, now seen corresponding path program 1 times [2019-10-13 21:13:38,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:38,656 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008609398] [2019-10-13 21:13:38,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:38,858 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:38,859 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008609398] [2019-10-13 21:13:38,859 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:38,859 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:38,859 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341434103] [2019-10-13 21:13:38,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:38,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:38,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:38,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,862 INFO L87 Difference]: Start difference. First operand 639 states and 916 transitions. Second operand 3 states. [2019-10-13 21:13:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:38,904 INFO L93 Difference]: Finished difference Result 1370 states and 2028 transitions. [2019-10-13 21:13:38,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:38,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 206 [2019-10-13 21:13:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:38,911 INFO L225 Difference]: With dead ends: 1370 [2019-10-13 21:13:38,911 INFO L226 Difference]: Without dead ends: 796 [2019-10-13 21:13:38,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:38,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2019-10-13 21:13:38,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 795. [2019-10-13 21:13:38,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2019-10-13 21:13:38,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1180 transitions. [2019-10-13 21:13:38,956 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1180 transitions. Word has length 206 [2019-10-13 21:13:38,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:38,956 INFO L462 AbstractCegarLoop]: Abstraction has 795 states and 1180 transitions. [2019-10-13 21:13:38,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:38,956 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1180 transitions. [2019-10-13 21:13:38,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-13 21:13:38,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:38,962 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:38,962 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:38,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:38,963 INFO L82 PathProgramCache]: Analyzing trace with hash -786715774, now seen corresponding path program 1 times [2019-10-13 21:13:38,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:38,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642642823] [2019-10-13 21:13:38,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,964 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:38,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:39,173 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:39,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642642823] [2019-10-13 21:13:39,175 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:39,175 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:39,175 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553571491] [2019-10-13 21:13:39,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:39,176 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:39,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:39,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:39,177 INFO L87 Difference]: Start difference. First operand 795 states and 1180 transitions. Second operand 3 states. [2019-10-13 21:13:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:39,234 INFO L93 Difference]: Finished difference Result 1826 states and 2800 transitions. [2019-10-13 21:13:39,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:39,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2019-10-13 21:13:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:39,243 INFO L225 Difference]: With dead ends: 1826 [2019-10-13 21:13:39,243 INFO L226 Difference]: Without dead ends: 1096 [2019-10-13 21:13:39,246 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2019-10-13 21:13:39,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1095. [2019-10-13 21:13:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2019-10-13 21:13:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1684 transitions. [2019-10-13 21:13:39,296 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1684 transitions. Word has length 207 [2019-10-13 21:13:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:39,297 INFO L462 AbstractCegarLoop]: Abstraction has 1095 states and 1684 transitions. [2019-10-13 21:13:39,297 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1684 transitions. [2019-10-13 21:13:39,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-13 21:13:39,304 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:39,305 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:39,305 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:39,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:39,305 INFO L82 PathProgramCache]: Analyzing trace with hash -709603746, now seen corresponding path program 1 times [2019-10-13 21:13:39,306 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:39,306 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109035422] [2019-10-13 21:13:39,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,306 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-13 21:13:39,480 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109035422] [2019-10-13 21:13:39,481 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:39,481 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:39,481 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65658035] [2019-10-13 21:13:39,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:39,483 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:39,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:39,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:39,484 INFO L87 Difference]: Start difference. First operand 1095 states and 1684 transitions. Second operand 3 states. [2019-10-13 21:13:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:39,594 INFO L93 Difference]: Finished difference Result 2702 states and 4272 transitions. [2019-10-13 21:13:39,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:39,595 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2019-10-13 21:13:39,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:39,609 INFO L225 Difference]: With dead ends: 2702 [2019-10-13 21:13:39,610 INFO L226 Difference]: Without dead ends: 1672 [2019-10-13 21:13:39,618 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:39,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2019-10-13 21:13:39,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1671. [2019-10-13 21:13:39,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1671 states. [2019-10-13 21:13:39,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2644 transitions. [2019-10-13 21:13:39,849 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2644 transitions. Word has length 208 [2019-10-13 21:13:39,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:39,850 INFO L462 AbstractCegarLoop]: Abstraction has 1671 states and 2644 transitions. [2019-10-13 21:13:39,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:39,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2644 transitions. [2019-10-13 21:13:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:13:39,866 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:39,866 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:39,867 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:39,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:39,867 INFO L82 PathProgramCache]: Analyzing trace with hash 324914454, now seen corresponding path program 1 times [2019-10-13 21:13:39,868 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:39,868 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901828070] [2019-10-13 21:13:39,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,868 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:39,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:40,306 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:40,307 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901828070] [2019-10-13 21:13:40,307 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:40,307 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:13:40,307 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468271520] [2019-10-13 21:13:40,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:13:40,309 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:40,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:13:40,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:13:40,311 INFO L87 Difference]: Start difference. First operand 1671 states and 2644 transitions. Second operand 19 states. [2019-10-13 21:13:45,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:45,026 INFO L93 Difference]: Finished difference Result 4050 states and 6402 transitions. [2019-10-13 21:13:45,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:13:45,027 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 210 [2019-10-13 21:13:45,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:45,063 INFO L225 Difference]: With dead ends: 4050 [2019-10-13 21:13:45,063 INFO L226 Difference]: Without dead ends: 3825 [2019-10-13 21:13:45,068 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:13:45,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2019-10-13 21:13:45,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3788. [2019-10-13 21:13:45,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3788 states. [2019-10-13 21:13:45,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3788 states to 3788 states and 6041 transitions. [2019-10-13 21:13:45,329 INFO L78 Accepts]: Start accepts. Automaton has 3788 states and 6041 transitions. Word has length 210 [2019-10-13 21:13:45,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:45,331 INFO L462 AbstractCegarLoop]: Abstraction has 3788 states and 6041 transitions. [2019-10-13 21:13:45,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:13:45,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3788 states and 6041 transitions. [2019-10-13 21:13:45,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:13:45,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:45,360 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:45,360 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:45,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:45,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1251493429, now seen corresponding path program 1 times [2019-10-13 21:13:45,361 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:45,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018979417] [2019-10-13 21:13:45,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,361 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:45,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:45,723 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-13 21:13:45,723 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018979417] [2019-10-13 21:13:45,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:45,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:13:45,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916844481] [2019-10-13 21:13:45,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:13:45,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:45,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:13:45,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:13:45,726 INFO L87 Difference]: Start difference. First operand 3788 states and 6041 transitions. Second operand 16 states. [2019-10-13 21:13:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:46,212 INFO L93 Difference]: Finished difference Result 4917 states and 7640 transitions. [2019-10-13 21:13:46,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:13:46,212 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 211 [2019-10-13 21:13:46,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:46,240 INFO L225 Difference]: With dead ends: 4917 [2019-10-13 21:13:46,240 INFO L226 Difference]: Without dead ends: 3958 [2019-10-13 21:13:46,246 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:13:46,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2019-10-13 21:13:46,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3958. [2019-10-13 21:13:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3958 states. [2019-10-13 21:13:46,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 6293 transitions. [2019-10-13 21:13:46,449 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 6293 transitions. Word has length 211 [2019-10-13 21:13:46,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:46,450 INFO L462 AbstractCegarLoop]: Abstraction has 3958 states and 6293 transitions. [2019-10-13 21:13:46,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:13:46,450 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 6293 transitions. [2019-10-13 21:13:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:13:46,477 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:46,478 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:46,478 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:46,479 INFO L82 PathProgramCache]: Analyzing trace with hash 39326315, now seen corresponding path program 1 times [2019-10-13 21:13:46,479 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:46,479 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093002571] [2019-10-13 21:13:46,479 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,480 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:46,480 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:46,824 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093002571] [2019-10-13 21:13:46,825 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:46,825 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:13:46,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605516339] [2019-10-13 21:13:46,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:13:46,829 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:46,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:13:46,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:13:46,830 INFO L87 Difference]: Start difference. First operand 3958 states and 6293 transitions. Second operand 15 states. [2019-10-13 21:13:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:50,096 INFO L93 Difference]: Finished difference Result 5127 states and 7943 transitions. [2019-10-13 21:13:50,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:13:50,097 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2019-10-13 21:13:50,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:50,128 INFO L225 Difference]: With dead ends: 5127 [2019-10-13 21:13:50,129 INFO L226 Difference]: Without dead ends: 4058 [2019-10-13 21:13:50,137 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:13:50,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4058 states. [2019-10-13 21:13:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4058 to 4028. [2019-10-13 21:13:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-10-13 21:13:50,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 6404 transitions. [2019-10-13 21:13:50,382 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 6404 transitions. Word has length 211 [2019-10-13 21:13:50,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:50,383 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 6404 transitions. [2019-10-13 21:13:50,383 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:13:50,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 6404 transitions. [2019-10-13 21:13:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:13:50,411 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:50,412 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:50,412 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:50,413 INFO L82 PathProgramCache]: Analyzing trace with hash -671262686, now seen corresponding path program 1 times [2019-10-13 21:13:50,413 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:50,413 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284051838] [2019-10-13 21:13:50,413 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:50,414 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:50,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:50,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:50,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:50,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284051838] [2019-10-13 21:13:50,601 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:50,601 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:13:50,601 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769078724] [2019-10-13 21:13:50,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:13:50,602 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:50,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:13:50,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:13:50,603 INFO L87 Difference]: Start difference. First operand 4028 states and 6404 transitions. Second operand 5 states. [2019-10-13 21:13:51,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:51,713 INFO L93 Difference]: Finished difference Result 7749 states and 12158 transitions. [2019-10-13 21:13:51,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:13:51,713 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2019-10-13 21:13:51,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:51,765 INFO L225 Difference]: With dead ends: 7749 [2019-10-13 21:13:51,765 INFO L226 Difference]: Without dead ends: 7174 [2019-10-13 21:13:51,774 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7174 states. [2019-10-13 21:13:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7174 to 7156. [2019-10-13 21:13:52,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7156 states. [2019-10-13 21:13:52,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7156 states to 7156 states and 11339 transitions. [2019-10-13 21:13:52,264 INFO L78 Accepts]: Start accepts. Automaton has 7156 states and 11339 transitions. Word has length 211 [2019-10-13 21:13:52,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:52,265 INFO L462 AbstractCegarLoop]: Abstraction has 7156 states and 11339 transitions. [2019-10-13 21:13:52,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:13:52,266 INFO L276 IsEmpty]: Start isEmpty. Operand 7156 states and 11339 transitions. [2019-10-13 21:13:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:13:52,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:52,298 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:52,298 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:52,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:52,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1154938013, now seen corresponding path program 1 times [2019-10-13 21:13:52,299 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:52,299 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445874538] [2019-10-13 21:13:52,299 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:52,300 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:52,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:52,521 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445874538] [2019-10-13 21:13:52,521 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:52,521 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:13:52,521 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842212972] [2019-10-13 21:13:52,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:13:52,522 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:52,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:13:52,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:13:52,523 INFO L87 Difference]: Start difference. First operand 7156 states and 11339 transitions. Second operand 7 states. [2019-10-13 21:13:54,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:54,938 INFO L93 Difference]: Finished difference Result 15881 states and 25146 transitions. [2019-10-13 21:13:54,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:13:54,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2019-10-13 21:13:54,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:55,009 INFO L225 Difference]: With dead ends: 15881 [2019-10-13 21:13:55,010 INFO L226 Difference]: Without dead ends: 13026 [2019-10-13 21:13:55,030 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:13:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13026 states. [2019-10-13 21:13:55,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13026 to 13020. [2019-10-13 21:13:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13020 states. [2019-10-13 21:13:55,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13020 states to 13020 states and 20697 transitions. [2019-10-13 21:13:55,635 INFO L78 Accepts]: Start accepts. Automaton has 13020 states and 20697 transitions. Word has length 211 [2019-10-13 21:13:55,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:55,635 INFO L462 AbstractCegarLoop]: Abstraction has 13020 states and 20697 transitions. [2019-10-13 21:13:55,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:13:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand 13020 states and 20697 transitions. [2019-10-13 21:13:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:13:55,672 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:55,673 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:55,673 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:55,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1728661351, now seen corresponding path program 1 times [2019-10-13 21:13:55,674 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:55,674 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329293457] [2019-10-13 21:13:55,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:55,674 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:55,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:56,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329293457] [2019-10-13 21:13:56,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:56,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:13:56,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150933599] [2019-10-13 21:13:56,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:13:56,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:56,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:13:56,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:13:56,239 INFO L87 Difference]: Start difference. First operand 13020 states and 20697 transitions. Second operand 26 states. [2019-10-13 21:13:57,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:57,608 INFO L93 Difference]: Finished difference Result 22920 states and 36507 transitions. [2019-10-13 21:13:57,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-13 21:13:57,608 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 212 [2019-10-13 21:13:57,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:57,681 INFO L225 Difference]: With dead ends: 22920 [2019-10-13 21:13:57,681 INFO L226 Difference]: Without dead ends: 14201 [2019-10-13 21:13:57,733 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:13:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14201 states. [2019-10-13 21:13:58,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14201 to 14180. [2019-10-13 21:13:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14180 states. [2019-10-13 21:13:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14180 states to 14180 states and 22394 transitions. [2019-10-13 21:13:58,428 INFO L78 Accepts]: Start accepts. Automaton has 14180 states and 22394 transitions. Word has length 212 [2019-10-13 21:13:58,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:58,429 INFO L462 AbstractCegarLoop]: Abstraction has 14180 states and 22394 transitions. [2019-10-13 21:13:58,429 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:13:58,429 INFO L276 IsEmpty]: Start isEmpty. Operand 14180 states and 22394 transitions. [2019-10-13 21:13:58,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-13 21:13:58,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:58,483 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:58,484 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -925986545, now seen corresponding path program 1 times [2019-10-13 21:13:58,484 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:58,485 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544403236] [2019-10-13 21:13:58,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:58,485 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:58,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:58,825 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:13:58,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544403236] [2019-10-13 21:13:58,826 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:58,826 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:13:58,826 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333929273] [2019-10-13 21:13:58,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:13:58,827 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:58,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:13:58,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:13:58,828 INFO L87 Difference]: Start difference. First operand 14180 states and 22394 transitions. Second operand 10 states. [2019-10-13 21:13:59,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:59,096 INFO L93 Difference]: Finished difference Result 14303 states and 22546 transitions. [2019-10-13 21:13:59,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:13:59,097 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 216 [2019-10-13 21:13:59,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:59,167 INFO L225 Difference]: With dead ends: 14303 [2019-10-13 21:13:59,167 INFO L226 Difference]: Without dead ends: 14300 [2019-10-13 21:13:59,178 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:13:59,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14300 states. [2019-10-13 21:13:59,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14300 to 14300. [2019-10-13 21:13:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14300 states. [2019-10-13 21:13:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14300 states to 14300 states and 22504 transitions. [2019-10-13 21:13:59,927 INFO L78 Accepts]: Start accepts. Automaton has 14300 states and 22504 transitions. Word has length 216 [2019-10-13 21:13:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:59,928 INFO L462 AbstractCegarLoop]: Abstraction has 14300 states and 22504 transitions. [2019-10-13 21:13:59,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:13:59,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14300 states and 22504 transitions. [2019-10-13 21:13:59,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-13 21:13:59,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:59,969 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:59,969 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:59,970 INFO L82 PathProgramCache]: Analyzing trace with hash -17024576, now seen corresponding path program 1 times [2019-10-13 21:13:59,970 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:59,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093090819] [2019-10-13 21:13:59,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:59,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:59,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:00,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093090819] [2019-10-13 21:14:00,121 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:00,121 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:14:00,121 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540714875] [2019-10-13 21:14:00,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:14:00,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:00,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:14:00,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:00,123 INFO L87 Difference]: Start difference. First operand 14300 states and 22504 transitions. Second operand 5 states. [2019-10-13 21:14:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:00,655 INFO L93 Difference]: Finished difference Result 24362 states and 38491 transitions. [2019-10-13 21:14:00,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:14:00,655 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 221 [2019-10-13 21:14:00,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:00,724 INFO L225 Difference]: With dead ends: 24362 [2019-10-13 21:14:00,724 INFO L226 Difference]: Without dead ends: 14741 [2019-10-13 21:14:00,767 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:14:00,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14741 states. [2019-10-13 21:14:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14741 to 14510. [2019-10-13 21:14:01,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14510 states. [2019-10-13 21:14:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14510 states to 14510 states and 22750 transitions. [2019-10-13 21:14:01,559 INFO L78 Accepts]: Start accepts. Automaton has 14510 states and 22750 transitions. Word has length 221 [2019-10-13 21:14:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:14:01,559 INFO L462 AbstractCegarLoop]: Abstraction has 14510 states and 22750 transitions. [2019-10-13 21:14:01,560 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:14:01,560 INFO L276 IsEmpty]: Start isEmpty. Operand 14510 states and 22750 transitions. [2019-10-13 21:14:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-10-13 21:14:01,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:14:01,584 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:14:01,585 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:14:01,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:14:01,585 INFO L82 PathProgramCache]: Analyzing trace with hash 2066975880, now seen corresponding path program 1 times [2019-10-13 21:14:01,585 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:14:01,586 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114004417] [2019-10-13 21:14:01,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,586 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:14:01,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:14:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:14:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-13 21:14:01,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114004417] [2019-10-13 21:14:01,824 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:14:01,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:14:01,824 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657817673] [2019-10-13 21:14:01,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:14:01,825 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:14:01,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:14:01,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:14:01,826 INFO L87 Difference]: Start difference. First operand 14510 states and 22750 transitions. Second operand 11 states. [2019-10-13 21:14:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:14:02,582 INFO L93 Difference]: Finished difference Result 24407 states and 37619 transitions. [2019-10-13 21:14:02,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:14:02,583 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 221 [2019-10-13 21:14:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:14:02,642 INFO L225 Difference]: With dead ends: 24407 [2019-10-13 21:14:02,642 INFO L226 Difference]: Without dead ends: 14576 [2019-10-13 21:14:02,673 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:14:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states.