java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:53,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:53,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:53,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:53,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:53,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:53,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:53,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:53,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:53,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:53,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:53,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:53,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:53,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:53,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:53,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:53,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:53,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:53,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:53,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:53,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:53,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:53,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:53,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:53,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:53,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:53,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:53,686 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:53,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:53,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:53,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:53,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:53,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:53,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:53,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:53,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:53,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:53,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:53,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:53,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:53,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:53,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:53,730 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:53,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:53,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:53,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:53,734 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:53,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:53,735 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:53,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:53,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:53,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:53,736 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:53,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:53,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:53,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:53,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:53,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:53,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:53,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:53,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:53,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:53,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:53,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:53,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:53,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:54,044 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:54,057 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:54,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:54,062 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:54,063 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:54,064 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-15 01:15:54,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b403cc2b6/0fe9869d614b4bd095d8e468977e758d/FLAGa68d3f9e1 [2019-10-15 01:15:54,789 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:54,791 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-15 01:15:54,825 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b403cc2b6/0fe9869d614b4bd095d8e468977e758d/FLAGa68d3f9e1 [2019-10-15 01:15:55,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b403cc2b6/0fe9869d614b4bd095d8e468977e758d [2019-10-15 01:15:55,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:55,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:55,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:55,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:55,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:55,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:55" (1/1) ... [2019-10-15 01:15:55,024 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5611840f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:55, skipping insertion in model container [2019-10-15 01:15:55,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:55" (1/1) ... [2019-10-15 01:15:55,032 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:55,120 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:55,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:55,886 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:56,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:56,099 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:56,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56 WrapperNode [2019-10-15 01:15:56,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:56,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:56,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:56,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:56,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... [2019-10-15 01:15:56,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:56,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:56,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:56,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:56,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:56,400 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:56,402 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:56,403 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:56,404 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:56,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:56,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:56,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:56,409 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:56,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:56,412 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:56,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:56,414 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:56,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:56,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:56,417 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:56,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:56,419 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:56,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:56,425 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:56,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:56,427 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:15:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:15:56,429 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:56,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:56,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:56,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:56,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:56,446 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:56,451 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:56,452 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:56,453 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:56,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:56,455 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:56,456 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:56,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:56,458 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:56,459 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:56,460 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:56,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:15:56,462 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:56,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:58,479 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:58,479 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:58,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:58 BoogieIcfgContainer [2019-10-15 01:15:58,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:58,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:58,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:58,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:58,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:55" (1/3) ... [2019-10-15 01:15:58,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f37875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:58, skipping insertion in model container [2019-10-15 01:15:58,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:56" (2/3) ... [2019-10-15 01:15:58,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f37875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:58, skipping insertion in model container [2019-10-15 01:15:58,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:58" (3/3) ... [2019-10-15 01:15:58,492 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2019-10-15 01:15:58,504 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:58,514 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:58,528 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:58,562 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:58,562 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:58,562 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:58,563 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:58,563 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:58,563 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:58,563 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:58,563 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:58,596 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states. [2019-10-15 01:15:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:15:58,619 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:58,621 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:58,623 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:58,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:58,631 INFO L82 PathProgramCache]: Analyzing trace with hash 505094075, now seen corresponding path program 1 times [2019-10-15 01:15:58,641 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:58,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767770332] [2019-10-15 01:15:58,642 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:59,342 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767770332] [2019-10-15 01:15:59,343 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:59,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:59,344 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971395812] [2019-10-15 01:15:59,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:59,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:59,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:59,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:59,373 INFO L87 Difference]: Start difference. First operand 432 states. Second operand 2 states. [2019-10-15 01:15:59,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:59,493 INFO L93 Difference]: Finished difference Result 573 states and 766 transitions. [2019-10-15 01:15:59,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:59,495 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 176 [2019-10-15 01:15:59,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:59,530 INFO L225 Difference]: With dead ends: 573 [2019-10-15 01:15:59,530 INFO L226 Difference]: Without dead ends: 387 [2019-10-15 01:15:59,540 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-15 01:15:59,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 387. [2019-10-15 01:15:59,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 387 states. [2019-10-15 01:15:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 520 transitions. [2019-10-15 01:15:59,676 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 520 transitions. Word has length 176 [2019-10-15 01:15:59,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:59,680 INFO L462 AbstractCegarLoop]: Abstraction has 387 states and 520 transitions. [2019-10-15 01:15:59,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:59,680 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 520 transitions. [2019-10-15 01:15:59,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:15:59,691 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:59,692 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:59,692 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:59,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:59,693 INFO L82 PathProgramCache]: Analyzing trace with hash -3320050, now seen corresponding path program 1 times [2019-10-15 01:15:59,693 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:59,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955202022] [2019-10-15 01:15:59,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:59,693 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:59,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:59,964 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:59,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955202022] [2019-10-15 01:15:59,965 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:59,965 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:59,965 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545367688] [2019-10-15 01:15:59,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:59,975 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:59,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:59,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:59,976 INFO L87 Difference]: Start difference. First operand 387 states and 520 transitions. Second operand 3 states. [2019-10-15 01:16:00,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:00,049 INFO L93 Difference]: Finished difference Result 556 states and 734 transitions. [2019-10-15 01:16:00,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:00,049 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 01:16:00,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:00,058 INFO L225 Difference]: With dead ends: 556 [2019-10-15 01:16:00,058 INFO L226 Difference]: Without dead ends: 390 [2019-10-15 01:16:00,062 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:00,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2019-10-15 01:16:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 389. [2019-10-15 01:16:00,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-15 01:16:00,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 522 transitions. [2019-10-15 01:16:00,100 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 522 transitions. Word has length 177 [2019-10-15 01:16:00,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:00,102 INFO L462 AbstractCegarLoop]: Abstraction has 389 states and 522 transitions. [2019-10-15 01:16:00,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:00,102 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 522 transitions. [2019-10-15 01:16:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 01:16:00,109 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:00,110 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:00,110 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:00,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:00,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2139517470, now seen corresponding path program 1 times [2019-10-15 01:16:00,111 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:00,111 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442332286] [2019-10-15 01:16:00,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,111 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,112 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:00,387 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:00,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442332286] [2019-10-15 01:16:00,387 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:00,387 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:00,388 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663318383] [2019-10-15 01:16:00,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:00,392 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:00,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:00,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:00,392 INFO L87 Difference]: Start difference. First operand 389 states and 522 transitions. Second operand 3 states. [2019-10-15 01:16:00,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:00,433 INFO L93 Difference]: Finished difference Result 752 states and 1039 transitions. [2019-10-15 01:16:00,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:00,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-15 01:16:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:00,437 INFO L225 Difference]: With dead ends: 752 [2019-10-15 01:16:00,437 INFO L226 Difference]: Without dead ends: 428 [2019-10-15 01:16:00,440 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2019-10-15 01:16:00,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 427. [2019-10-15 01:16:00,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-10-15 01:16:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 588 transitions. [2019-10-15 01:16:00,462 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 588 transitions. Word has length 183 [2019-10-15 01:16:00,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:00,464 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 588 transitions. [2019-10-15 01:16:00,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 588 transitions. [2019-10-15 01:16:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:16:00,471 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:00,471 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:00,471 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:00,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:00,472 INFO L82 PathProgramCache]: Analyzing trace with hash 204479473, now seen corresponding path program 1 times [2019-10-15 01:16:00,472 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:00,472 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969555892] [2019-10-15 01:16:00,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:00,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:00,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969555892] [2019-10-15 01:16:00,888 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:00,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:00,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422855306] [2019-10-15 01:16:00,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:00,891 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:00,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:00,892 INFO L87 Difference]: Start difference. First operand 427 states and 588 transitions. Second operand 11 states. [2019-10-15 01:16:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:04,170 INFO L93 Difference]: Finished difference Result 1577 states and 2140 transitions. [2019-10-15 01:16:04,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:16:04,171 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 184 [2019-10-15 01:16:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:04,184 INFO L225 Difference]: With dead ends: 1577 [2019-10-15 01:16:04,185 INFO L226 Difference]: Without dead ends: 1304 [2019-10-15 01:16:04,189 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-15 01:16:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2019-10-15 01:16:04,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1289. [2019-10-15 01:16:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1289 states. [2019-10-15 01:16:04,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1717 transitions. [2019-10-15 01:16:04,271 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1717 transitions. Word has length 184 [2019-10-15 01:16:04,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:04,272 INFO L462 AbstractCegarLoop]: Abstraction has 1289 states and 1717 transitions. [2019-10-15 01:16:04,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1717 transitions. [2019-10-15 01:16:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-15 01:16:04,278 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:04,278 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:04,279 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash -691241968, now seen corresponding path program 1 times [2019-10-15 01:16:04,280 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:04,280 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246992330] [2019-10-15 01:16:04,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:04,281 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:04,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:04,677 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246992330] [2019-10-15 01:16:04,678 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:04,678 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-15 01:16:04,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624323951] [2019-10-15 01:16:04,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:04,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:04,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:04,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:04,680 INFO L87 Difference]: Start difference. First operand 1289 states and 1717 transitions. Second operand 16 states. [2019-10-15 01:16:05,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:05,033 INFO L93 Difference]: Finished difference Result 2093 states and 2769 transitions. [2019-10-15 01:16:05,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 01:16:05,033 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 185 [2019-10-15 01:16:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:05,041 INFO L225 Difference]: With dead ends: 2093 [2019-10-15 01:16:05,042 INFO L226 Difference]: Without dead ends: 1082 [2019-10-15 01:16:05,045 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:16:05,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2019-10-15 01:16:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1003. [2019-10-15 01:16:05,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2019-10-15 01:16:05,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1331 transitions. [2019-10-15 01:16:05,092 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1331 transitions. Word has length 185 [2019-10-15 01:16:05,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:05,093 INFO L462 AbstractCegarLoop]: Abstraction has 1003 states and 1331 transitions. [2019-10-15 01:16:05,093 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:05,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1331 transitions. [2019-10-15 01:16:05,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:16:05,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:05,098 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:05,098 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:05,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:05,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1574861770, now seen corresponding path program 1 times [2019-10-15 01:16:05,099 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:05,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875798406] [2019-10-15 01:16:05,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:05,099 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:05,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:05,300 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:05,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875798406] [2019-10-15 01:16:05,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:05,301 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:05,301 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534629609] [2019-10-15 01:16:05,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:05,302 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:05,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:05,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:05,303 INFO L87 Difference]: Start difference. First operand 1003 states and 1331 transitions. Second operand 6 states. [2019-10-15 01:16:05,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:05,847 INFO L93 Difference]: Finished difference Result 2698 states and 3565 transitions. [2019-10-15 01:16:05,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:05,848 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2019-10-15 01:16:05,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:05,863 INFO L225 Difference]: With dead ends: 2698 [2019-10-15 01:16:05,863 INFO L226 Difference]: Without dead ends: 1997 [2019-10-15 01:16:05,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:05,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2019-10-15 01:16:05,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1926. [2019-10-15 01:16:05,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2019-10-15 01:16:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2579 transitions. [2019-10-15 01:16:06,004 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2579 transitions. Word has length 194 [2019-10-15 01:16:06,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:06,007 INFO L462 AbstractCegarLoop]: Abstraction has 1926 states and 2579 transitions. [2019-10-15 01:16:06,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2579 transitions. [2019-10-15 01:16:06,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:06,012 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:06,013 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:06,013 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,013 INFO L82 PathProgramCache]: Analyzing trace with hash 813693208, now seen corresponding path program 1 times [2019-10-15 01:16:06,014 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,014 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2163500] [2019-10-15 01:16:06,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,014 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,216 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:06,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2163500] [2019-10-15 01:16:06,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:06,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 01:16:06,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138774466] [2019-10-15 01:16:06,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:06,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:06,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:06,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:06,219 INFO L87 Difference]: Start difference. First operand 1926 states and 2579 transitions. Second operand 9 states. [2019-10-15 01:16:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:06,543 INFO L93 Difference]: Finished difference Result 3351 states and 4390 transitions. [2019-10-15 01:16:06,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:06,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 195 [2019-10-15 01:16:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:06,557 INFO L225 Difference]: With dead ends: 3351 [2019-10-15 01:16:06,558 INFO L226 Difference]: Without dead ends: 1944 [2019-10-15 01:16:06,563 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:16:06,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2019-10-15 01:16:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1914. [2019-10-15 01:16:06,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2019-10-15 01:16:06,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2553 transitions. [2019-10-15 01:16:06,733 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2553 transitions. Word has length 195 [2019-10-15 01:16:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:06,736 INFO L462 AbstractCegarLoop]: Abstraction has 1914 states and 2553 transitions. [2019-10-15 01:16:06,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2553 transitions. [2019-10-15 01:16:06,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:06,744 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:06,744 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:06,744 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1400469327, now seen corresponding path program 1 times [2019-10-15 01:16:06,745 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639550434] [2019-10-15 01:16:06,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,746 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:06,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,958 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:16:06,958 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639550434] [2019-10-15 01:16:06,958 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:06,958 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:06,959 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385181484] [2019-10-15 01:16:06,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:06,960 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:06,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:06,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:06,961 INFO L87 Difference]: Start difference. First operand 1914 states and 2553 transitions. Second operand 5 states. [2019-10-15 01:16:07,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:07,947 INFO L93 Difference]: Finished difference Result 6123 states and 8054 transitions. [2019-10-15 01:16:07,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:07,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2019-10-15 01:16:07,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:07,980 INFO L225 Difference]: With dead ends: 6123 [2019-10-15 01:16:07,980 INFO L226 Difference]: Without dead ends: 4496 [2019-10-15 01:16:07,989 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4496 states. [2019-10-15 01:16:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4496 to 4239. [2019-10-15 01:16:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4239 states. [2019-10-15 01:16:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 5663 transitions. [2019-10-15 01:16:08,287 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 5663 transitions. Word has length 195 [2019-10-15 01:16:08,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:08,288 INFO L462 AbstractCegarLoop]: Abstraction has 4239 states and 5663 transitions. [2019-10-15 01:16:08,288 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:08,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 5663 transitions. [2019-10-15 01:16:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-15 01:16:08,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:08,301 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:08,301 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:08,302 INFO L82 PathProgramCache]: Analyzing trace with hash -754431274, now seen corresponding path program 1 times [2019-10-15 01:16:08,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:08,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278320132] [2019-10-15 01:16:08,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:08,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:08,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:08,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:08,439 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278320132] [2019-10-15 01:16:08,440 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:08,440 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:08,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41931470] [2019-10-15 01:16:08,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:08,442 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:08,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:08,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:08,443 INFO L87 Difference]: Start difference. First operand 4239 states and 5663 transitions. Second operand 3 states. [2019-10-15 01:16:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:08,582 INFO L93 Difference]: Finished difference Result 8725 states and 11838 transitions. [2019-10-15 01:16:08,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:08,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2019-10-15 01:16:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:08,616 INFO L225 Difference]: With dead ends: 8725 [2019-10-15 01:16:08,616 INFO L226 Difference]: Without dead ends: 4551 [2019-10-15 01:16:08,629 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2019-10-15 01:16:08,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4547. [2019-10-15 01:16:08,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4547 states. [2019-10-15 01:16:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4547 states to 4547 states and 6236 transitions. [2019-10-15 01:16:08,851 INFO L78 Accepts]: Start accepts. Automaton has 4547 states and 6236 transitions. Word has length 224 [2019-10-15 01:16:08,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:08,852 INFO L462 AbstractCegarLoop]: Abstraction has 4547 states and 6236 transitions. [2019-10-15 01:16:08,852 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:08,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4547 states and 6236 transitions. [2019-10-15 01:16:08,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:16:08,869 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:08,869 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:08,870 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:08,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:08,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1121099591, now seen corresponding path program 1 times [2019-10-15 01:16:08,871 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:08,871 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440604453] [2019-10-15 01:16:08,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:08,871 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:08,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:09,190 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:09,190 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440604453] [2019-10-15 01:16:09,192 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:09,192 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:09,192 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410421200] [2019-10-15 01:16:09,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:09,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:09,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:09,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:09,196 INFO L87 Difference]: Start difference. First operand 4547 states and 6236 transitions. Second operand 3 states. [2019-10-15 01:16:09,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:09,340 INFO L93 Difference]: Finished difference Result 9609 states and 13493 transitions. [2019-10-15 01:16:09,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:09,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-10-15 01:16:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:09,374 INFO L225 Difference]: With dead ends: 9609 [2019-10-15 01:16:09,374 INFO L226 Difference]: Without dead ends: 5127 [2019-10-15 01:16:09,393 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5127 states. [2019-10-15 01:16:09,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5127 to 5123. [2019-10-15 01:16:09,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5123 states. [2019-10-15 01:16:09,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7310 transitions. [2019-10-15 01:16:09,657 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 7310 transitions. Word has length 225 [2019-10-15 01:16:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:09,658 INFO L462 AbstractCegarLoop]: Abstraction has 5123 states and 7310 transitions. [2019-10-15 01:16:09,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:09,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 7310 transitions. [2019-10-15 01:16:09,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:16:09,678 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:09,679 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:09,679 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:09,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:09,679 INFO L82 PathProgramCache]: Analyzing trace with hash -566142508, now seen corresponding path program 1 times [2019-10-15 01:16:09,680 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:09,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398065685] [2019-10-15 01:16:09,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,680 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,680 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:09,929 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398065685] [2019-10-15 01:16:09,929 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:09,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:09,930 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806718955] [2019-10-15 01:16:09,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:09,931 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:09,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:09,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:09,931 INFO L87 Difference]: Start difference. First operand 5123 states and 7310 transitions. Second operand 8 states. [2019-10-15 01:16:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:13,467 INFO L93 Difference]: Finished difference Result 15735 states and 23920 transitions. [2019-10-15 01:16:13,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:13,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2019-10-15 01:16:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:13,534 INFO L225 Difference]: With dead ends: 15735 [2019-10-15 01:16:13,534 INFO L226 Difference]: Without dead ends: 10677 [2019-10-15 01:16:13,554 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:13,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10677 states. [2019-10-15 01:16:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10677 to 7207. [2019-10-15 01:16:13,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7207 states. [2019-10-15 01:16:13,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7207 states to 7207 states and 11574 transitions. [2019-10-15 01:16:13,980 INFO L78 Accepts]: Start accepts. Automaton has 7207 states and 11574 transitions. Word has length 226 [2019-10-15 01:16:13,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:13,982 INFO L462 AbstractCegarLoop]: Abstraction has 7207 states and 11574 transitions. [2019-10-15 01:16:13,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:13,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7207 states and 11574 transitions. [2019-10-15 01:16:14,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-10-15 01:16:14,016 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:14,016 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:14,016 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:14,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:14,017 INFO L82 PathProgramCache]: Analyzing trace with hash 497412496, now seen corresponding path program 1 times [2019-10-15 01:16:14,017 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:14,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387833268] [2019-10-15 01:16:14,017 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:14,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:14,234 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:14,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387833268] [2019-10-15 01:16:14,235 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:14,235 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:14,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410764682] [2019-10-15 01:16:14,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:14,236 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:14,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:14,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:14,236 INFO L87 Difference]: Start difference. First operand 7207 states and 11574 transitions. Second operand 8 states. [2019-10-15 01:16:17,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:17,832 INFO L93 Difference]: Finished difference Result 22523 states and 38960 transitions. [2019-10-15 01:16:17,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:17,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 233 [2019-10-15 01:16:17,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:17,934 INFO L225 Difference]: With dead ends: 22523 [2019-10-15 01:16:17,935 INFO L226 Difference]: Without dead ends: 15381 [2019-10-15 01:16:17,969 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15381 states. [2019-10-15 01:16:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15381 to 11495. [2019-10-15 01:16:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11495 states. [2019-10-15 01:16:18,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11495 states to 11495 states and 20942 transitions. [2019-10-15 01:16:18,626 INFO L78 Accepts]: Start accepts. Automaton has 11495 states and 20942 transitions. Word has length 233 [2019-10-15 01:16:18,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:18,627 INFO L462 AbstractCegarLoop]: Abstraction has 11495 states and 20942 transitions. [2019-10-15 01:16:18,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 11495 states and 20942 transitions. [2019-10-15 01:16:18,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-15 01:16:18,713 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,713 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,714 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,714 INFO L82 PathProgramCache]: Analyzing trace with hash 455960536, now seen corresponding path program 1 times [2019-10-15 01:16:18,714 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077446695] [2019-10-15 01:16:18,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:16:19,019 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077446695] [2019-10-15 01:16:19,019 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,019 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:19,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466229033] [2019-10-15 01:16:19,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:19,020 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:19,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:19,021 INFO L87 Difference]: Start difference. First operand 11495 states and 20942 transitions. Second operand 8 states. [2019-10-15 01:16:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:23,464 INFO L93 Difference]: Finished difference Result 36371 states and 71516 transitions. [2019-10-15 01:16:23,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 01:16:23,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2019-10-15 01:16:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:23,637 INFO L225 Difference]: With dead ends: 36371 [2019-10-15 01:16:23,637 INFO L226 Difference]: Without dead ends: 24941 [2019-10-15 01:16:23,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:16:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24941 states. [2019-10-15 01:16:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24941 to 20199. [2019-10-15 01:16:25,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20199 states. [2019-10-15 01:16:25,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20199 states to 20199 states and 41218 transitions. [2019-10-15 01:16:25,121 INFO L78 Accepts]: Start accepts. Automaton has 20199 states and 41218 transitions. Word has length 228 [2019-10-15 01:16:25,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:25,121 INFO L462 AbstractCegarLoop]: Abstraction has 20199 states and 41218 transitions. [2019-10-15 01:16:25,121 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:16:25,122 INFO L276 IsEmpty]: Start isEmpty. Operand 20199 states and 41218 transitions. [2019-10-15 01:16:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:16:25,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:25,254 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:25,254 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:25,255 INFO L82 PathProgramCache]: Analyzing trace with hash 571276207, now seen corresponding path program 1 times [2019-10-15 01:16:25,255 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:25,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363255695] [2019-10-15 01:16:25,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,255 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:25,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:25,459 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:25,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363255695] [2019-10-15 01:16:25,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:25,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:25,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521830369] [2019-10-15 01:16:25,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:25,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:25,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:25,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:25,462 INFO L87 Difference]: Start difference. First operand 20199 states and 41218 transitions. Second operand 11 states.