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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:39,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:39,689 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:39,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:39,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:39,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:39,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:39,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:39,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:39,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:39,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:39,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:39,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:39,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:39,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:39,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:39,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:39,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:39,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:39,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:39,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:39,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:39,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:39,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:39,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:39,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:39,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:39,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:39,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:39,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:39,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:39,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:39,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:39,748 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:39,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:39,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:39,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:39,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:39,754 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:39,755 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:39,755 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:39,758 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 01:15:39,777 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:39,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:39,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:39,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:39,780 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:39,780 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:39,780 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:39,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:39,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:39,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:39,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:39,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:39,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:39,783 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:39,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:39,783 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:39,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:39,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:39,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:39,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:39,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:39,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:39,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:39,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:39,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:39,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:39,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:39,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:39,786 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 01:15:40,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:40,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:40,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:40,090 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:40,090 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:40,091 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-15 01:15:40,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b16e5c6/97cc08a475924379ac2660bce3f7a6a6/FLAGddb036b0d [2019-10-15 01:15:40,787 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:40,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-15 01:15:40,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b16e5c6/97cc08a475924379ac2660bce3f7a6a6/FLAGddb036b0d [2019-10-15 01:15:40,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b16e5c6/97cc08a475924379ac2660bce3f7a6a6 [2019-10-15 01:15:40,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:40,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:40,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:40,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:41,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:41,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:40" (1/1) ... [2019-10-15 01:15:41,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34519ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:41, skipping insertion in model container [2019-10-15 01:15:41,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:40" (1/1) ... [2019-10-15 01:15:41,013 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:41,084 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:41,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:41,838 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:41,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:42,080 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:42,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42 WrapperNode [2019-10-15 01:15:42,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:42,082 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:42,082 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:42,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:42,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (1/1) ... [2019-10-15 01:15:42,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:42,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:42,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:42,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:42,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (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 01:15:42,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:42,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:42,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:42,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:42,419 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:42,420 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:42,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:15:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:15:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:42,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:42,467 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:42,468 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:42,469 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 01:15:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:44,600 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:44,601 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:44,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:44 BoogieIcfgContainer [2019-10-15 01:15:44,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:44,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:44,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:44,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:44,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:40" (1/3) ... [2019-10-15 01:15:44,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae9fbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:44, skipping insertion in model container [2019-10-15 01:15:44,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:42" (2/3) ... [2019-10-15 01:15:44,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae9fbcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:44, skipping insertion in model container [2019-10-15 01:15:44,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:44" (3/3) ... [2019-10-15 01:15:44,613 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2019-10-15 01:15:44,622 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:44,632 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:44,644 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:44,681 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:44,682 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:44,682 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:44,682 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:44,682 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:44,684 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:44,685 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:44,685 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states. [2019-10-15 01:15:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-15 01:15:44,766 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:44,768 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] [2019-10-15 01:15:44,771 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:44,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:44,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1597170516, now seen corresponding path program 1 times [2019-10-15 01:15:44,787 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:44,788 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546413967] [2019-10-15 01:15:44,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:44,788 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:44,788 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:45,420 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 01:15:45,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546413967] [2019-10-15 01:15:45,422 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:45,422 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:45,423 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222869611] [2019-10-15 01:15:45,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:45,430 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:45,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:45,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:45,447 INFO L87 Difference]: Start difference. First operand 590 states. Second operand 2 states. [2019-10-15 01:15:45,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:45,548 INFO L93 Difference]: Finished difference Result 911 states and 1196 transitions. [2019-10-15 01:15:45,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:45,552 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 164 [2019-10-15 01:15:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:45,586 INFO L225 Difference]: With dead ends: 911 [2019-10-15 01:15:45,586 INFO L226 Difference]: Without dead ends: 567 [2019-10-15 01:15:45,597 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 01:15:45,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-10-15 01:15:45,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 567. [2019-10-15 01:15:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 567 states. [2019-10-15 01:15:45,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 749 transitions. [2019-10-15 01:15:45,717 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 749 transitions. Word has length 164 [2019-10-15 01:15:45,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:45,720 INFO L462 AbstractCegarLoop]: Abstraction has 567 states and 749 transitions. [2019-10-15 01:15:45,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:45,721 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 749 transitions. [2019-10-15 01:15:45,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:15:45,728 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:45,728 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] [2019-10-15 01:15:45,729 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:45,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:45,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1060723953, now seen corresponding path program 1 times [2019-10-15 01:15:45,732 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:45,732 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684922283] [2019-10-15 01:15:45,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,039 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 01:15:46,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684922283] [2019-10-15 01:15:46,040 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,040 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:46,040 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070269661] [2019-10-15 01:15:46,042 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:46,042 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:46,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,043 INFO L87 Difference]: Start difference. First operand 567 states and 749 transitions. Second operand 3 states. [2019-10-15 01:15:46,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,096 INFO L93 Difference]: Finished difference Result 894 states and 1164 transitions. [2019-10-15 01:15:46,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:46,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 01:15:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,106 INFO L225 Difference]: With dead ends: 894 [2019-10-15 01:15:46,106 INFO L226 Difference]: Without dead ends: 570 [2019-10-15 01:15:46,108 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 01:15:46,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2019-10-15 01:15:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 569. [2019-10-15 01:15:46,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 569 states. [2019-10-15 01:15:46,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 751 transitions. [2019-10-15 01:15:46,150 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 751 transitions. Word has length 165 [2019-10-15 01:15:46,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,151 INFO L462 AbstractCegarLoop]: Abstraction has 569 states and 751 transitions. [2019-10-15 01:15:46,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:46,151 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 751 transitions. [2019-10-15 01:15:46,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 01:15:46,155 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,155 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 01:15:46,155 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1599570176, now seen corresponding path program 1 times [2019-10-15 01:15:46,156 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,156 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443661722] [2019-10-15 01:15:46,156 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,157 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,157 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,320 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 01:15:46,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443661722] [2019-10-15 01:15:46,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:46,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197796962] [2019-10-15 01:15:46,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:46,326 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:46,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,327 INFO L87 Difference]: Start difference. First operand 569 states and 751 transitions. Second operand 3 states. [2019-10-15 01:15:46,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,366 INFO L93 Difference]: Finished difference Result 1116 states and 1503 transitions. [2019-10-15 01:15:46,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:46,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 01:15:46,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,371 INFO L225 Difference]: With dead ends: 1116 [2019-10-15 01:15:46,371 INFO L226 Difference]: Without dead ends: 612 [2019-10-15 01:15:46,373 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 01:15:46,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2019-10-15 01:15:46,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 611. [2019-10-15 01:15:46,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-15 01:15:46,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 823 transitions. [2019-10-15 01:15:46,399 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 823 transitions. Word has length 177 [2019-10-15 01:15:46,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,399 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 823 transitions. [2019-10-15 01:15:46,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:46,400 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 823 transitions. [2019-10-15 01:15:46,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-10-15 01:15:46,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,404 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,404 INFO L82 PathProgramCache]: Analyzing trace with hash 161290847, now seen corresponding path program 1 times [2019-10-15 01:15:46,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826186020] [2019-10-15 01:15:46,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,542 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 01:15:46,543 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826186020] [2019-10-15 01:15:46,543 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,543 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:46,543 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856420701] [2019-10-15 01:15:46,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:46,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:46,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:46,546 INFO L87 Difference]: Start difference. First operand 611 states and 823 transitions. Second operand 3 states. [2019-10-15 01:15:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,632 INFO L93 Difference]: Finished difference Result 1239 states and 1714 transitions. [2019-10-15 01:15:46,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:46,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-10-15 01:15:46,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,639 INFO L225 Difference]: With dead ends: 1239 [2019-10-15 01:15:46,639 INFO L226 Difference]: Without dead ends: 693 [2019-10-15 01:15:46,641 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 01:15:46,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2019-10-15 01:15:46,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2019-10-15 01:15:46,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2019-10-15 01:15:46,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 961 transitions. [2019-10-15 01:15:46,675 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 961 transitions. Word has length 178 [2019-10-15 01:15:46,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,676 INFO L462 AbstractCegarLoop]: Abstraction has 692 states and 961 transitions. [2019-10-15 01:15:46,676 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:46,676 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 961 transitions. [2019-10-15 01:15:46,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:15:46,680 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,680 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] [2019-10-15 01:15:46,681 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1626643826, now seen corresponding path program 1 times [2019-10-15 01:15:46,681 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,682 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259248362] [2019-10-15 01:15:46,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,682 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,894 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 01:15:46,894 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259248362] [2019-10-15 01:15:46,895 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,895 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:46,895 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995987773] [2019-10-15 01:15:46,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:46,896 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:46,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:46,897 INFO L87 Difference]: Start difference. First operand 692 states and 961 transitions. Second operand 7 states. [2019-10-15 01:15:50,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:50,229 INFO L93 Difference]: Finished difference Result 1332 states and 1783 transitions. [2019-10-15 01:15:50,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:50,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-15 01:15:50,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:50,236 INFO L225 Difference]: With dead ends: 1332 [2019-10-15 01:15:50,236 INFO L226 Difference]: Without dead ends: 1019 [2019-10-15 01:15:50,238 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:50,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2019-10-15 01:15:50,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1010. [2019-10-15 01:15:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1010 states. [2019-10-15 01:15:50,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1010 states to 1010 states and 1370 transitions. [2019-10-15 01:15:50,283 INFO L78 Accepts]: Start accepts. Automaton has 1010 states and 1370 transitions. Word has length 181 [2019-10-15 01:15:50,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:50,284 INFO L462 AbstractCegarLoop]: Abstraction has 1010 states and 1370 transitions. [2019-10-15 01:15:50,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:50,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1010 states and 1370 transitions. [2019-10-15 01:15:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:15:50,288 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:50,289 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] [2019-10-15 01:15:50,289 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:50,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:50,289 INFO L82 PathProgramCache]: Analyzing trace with hash 475123241, now seen corresponding path program 1 times [2019-10-15 01:15:50,290 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:50,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513255046] [2019-10-15 01:15:50,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:50,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:50,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:50,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:50,633 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 01:15:50,633 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513255046] [2019-10-15 01:15:50,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:50,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:15:50,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935805347] [2019-10-15 01:15:50,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:15:50,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:50,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:15:50,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:50,635 INFO L87 Difference]: Start difference. First operand 1010 states and 1370 transitions. Second operand 18 states. [2019-10-15 01:15:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:51,086 INFO L93 Difference]: Finished difference Result 1719 states and 2293 transitions. [2019-10-15 01:15:51,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:15:51,087 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 182 [2019-10-15 01:15:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:51,093 INFO L225 Difference]: With dead ends: 1719 [2019-10-15 01:15:51,094 INFO L226 Difference]: Without dead ends: 1060 [2019-10-15 01:15:51,096 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:15:51,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2019-10-15 01:15:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1056. [2019-10-15 01:15:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-10-15 01:15:51,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1435 transitions. [2019-10-15 01:15:51,158 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1435 transitions. Word has length 182 [2019-10-15 01:15:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:51,160 INFO L462 AbstractCegarLoop]: Abstraction has 1056 states and 1435 transitions. [2019-10-15 01:15:51,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:15:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1435 transitions. [2019-10-15 01:15:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:15:51,164 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:51,165 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] [2019-10-15 01:15:51,168 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:51,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:51,169 INFO L82 PathProgramCache]: Analyzing trace with hash -264639391, now seen corresponding path program 1 times [2019-10-15 01:15:51,169 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:51,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940011646] [2019-10-15 01:15:51,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:51,170 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:51,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:51,371 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 01:15:51,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940011646] [2019-10-15 01:15:51,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:51,372 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:51,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213076610] [2019-10-15 01:15:51,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:51,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:51,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:51,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:51,375 INFO L87 Difference]: Start difference. First operand 1056 states and 1435 transitions. Second operand 8 states. [2019-10-15 01:15:52,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:52,514 INFO L93 Difference]: Finished difference Result 1925 states and 2576 transitions. [2019-10-15 01:15:52,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:52,515 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-15 01:15:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:52,534 INFO L225 Difference]: With dead ends: 1925 [2019-10-15 01:15:52,534 INFO L226 Difference]: Without dead ends: 1766 [2019-10-15 01:15:52,537 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2019-10-15 01:15:52,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1753. [2019-10-15 01:15:52,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1753 states. [2019-10-15 01:15:52,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1753 states to 1753 states and 2350 transitions. [2019-10-15 01:15:52,648 INFO L78 Accepts]: Start accepts. Automaton has 1753 states and 2350 transitions. Word has length 191 [2019-10-15 01:15:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:52,650 INFO L462 AbstractCegarLoop]: Abstraction has 1753 states and 2350 transitions. [2019-10-15 01:15:52,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:52,651 INFO L276 IsEmpty]: Start isEmpty. Operand 1753 states and 2350 transitions. [2019-10-15 01:15:52,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:52,655 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:52,656 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:52,656 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:52,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:52,656 INFO L82 PathProgramCache]: Analyzing trace with hash 339589513, now seen corresponding path program 1 times [2019-10-15 01:15:52,657 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:52,657 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202111561] [2019-10-15 01:15:52,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:52,657 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:52,657 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:53,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202111561] [2019-10-15 01:15:53,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:53,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-10-15 01:15:53,031 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41952999] [2019-10-15 01:15:53,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-10-15 01:15:53,032 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:53,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-10-15 01:15:53,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2019-10-15 01:15:53,033 INFO L87 Difference]: Start difference. First operand 1753 states and 2350 transitions. Second operand 17 states. [2019-10-15 01:15:53,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:53,803 INFO L93 Difference]: Finished difference Result 2402 states and 3183 transitions. [2019-10-15 01:15:53,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 01:15:53,803 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 192 [2019-10-15 01:15:53,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:53,825 INFO L225 Difference]: With dead ends: 2402 [2019-10-15 01:15:53,825 INFO L226 Difference]: Without dead ends: 1752 [2019-10-15 01:15:53,830 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:15:53,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2019-10-15 01:15:53,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1751. [2019-10-15 01:15:53,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2019-10-15 01:15:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2345 transitions. [2019-10-15 01:15:53,952 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2345 transitions. Word has length 192 [2019-10-15 01:15:53,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:53,953 INFO L462 AbstractCegarLoop]: Abstraction has 1751 states and 2345 transitions. [2019-10-15 01:15:53,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-10-15 01:15:53,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2345 transitions. [2019-10-15 01:15:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:53,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:53,961 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:53,962 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:53,962 INFO L82 PathProgramCache]: Analyzing trace with hash 985079459, now seen corresponding path program 2 times [2019-10-15 01:15:53,963 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:53,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093759571] [2019-10-15 01:15:53,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:54,194 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093759571] [2019-10-15 01:15:54,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183598326] [2019-10-15 01:15:54,196 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:54,678 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:54,679 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:54,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 2070 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:15:54,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:54,979 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:54,979 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:55,484 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:55,485 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:15:55,485 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300287466] [2019-10-15 01:15:55,486 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:55,486 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:55,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:55,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:55,487 INFO L87 Difference]: Start difference. First operand 1751 states and 2345 transitions. Second operand 14 states. [2019-10-15 01:15:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:58,441 INFO L93 Difference]: Finished difference Result 5205 states and 7022 transitions. [2019-10-15 01:15:58,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:58,442 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2019-10-15 01:15:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:58,472 INFO L225 Difference]: With dead ends: 5205 [2019-10-15 01:15:58,472 INFO L226 Difference]: Without dead ends: 5198 [2019-10-15 01:15:58,475 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:15:58,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5198 states. [2019-10-15 01:15:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5198 to 3801. [2019-10-15 01:15:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3801 states. [2019-10-15 01:15:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3801 states to 3801 states and 5205 transitions. [2019-10-15 01:15:58,729 INFO L78 Accepts]: Start accepts. Automaton has 3801 states and 5205 transitions. Word has length 192 [2019-10-15 01:15:58,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:58,730 INFO L462 AbstractCegarLoop]: Abstraction has 3801 states and 5205 transitions. [2019-10-15 01:15:58,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 3801 states and 5205 transitions. [2019-10-15 01:15:58,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-15 01:15:58,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:58,745 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:58,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:58,957 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:58,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1277649621, now seen corresponding path program 1 times [2019-10-15 01:15:58,958 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:58,958 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045656376] [2019-10-15 01:15:58,958 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,959 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:58,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:15:59,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045656376] [2019-10-15 01:15:59,175 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581483135] [2019-10-15 01:15:59,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:59,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 2767 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:59,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:15:59,977 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:00,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:00,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:00,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 01:16:00,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:00,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 9] total 24 [2019-10-15 01:16:00,554 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370541114] [2019-10-15 01:16:00,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:16:00,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:00,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:16:00,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2019-10-15 01:16:00,556 INFO L87 Difference]: Start difference. First operand 3801 states and 5205 transitions. Second operand 9 states. [2019-10-15 01:16:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:02,752 INFO L93 Difference]: Finished difference Result 7576 states and 10384 transitions. [2019-10-15 01:16:02,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:16:02,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2019-10-15 01:16:02,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:02,775 INFO L225 Difference]: With dead ends: 7576 [2019-10-15 01:16:02,775 INFO L226 Difference]: Without dead ends: 3819 [2019-10-15 01:16:02,786 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 372 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=618, Unknown=0, NotChecked=0, Total=702 [2019-10-15 01:16:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2019-10-15 01:16:02,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2019-10-15 01:16:02,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-15 01:16:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5226 transitions. [2019-10-15 01:16:02,952 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5226 transitions. Word has length 194 [2019-10-15 01:16:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:02,953 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5226 transitions. [2019-10-15 01:16:02,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:16:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5226 transitions. [2019-10-15 01:16:02,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:16:02,962 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:02,963 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 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 01:16:03,169 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:03,170 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:03,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:03,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1095064192, now seen corresponding path program 1 times [2019-10-15 01:16:03,171 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:03,171 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240829731] [2019-10-15 01:16:03,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:03,172 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:03,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:03,394 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 01:16:03,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240829731] [2019-10-15 01:16:03,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816332393] [2019-10-15 01:16:03,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:03,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 2768 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:03,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 01:16:04,060 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:04,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:04,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:04,461 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-10-15 01:16:04,461 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:04,462 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11, 7] total 20 [2019-10-15 01:16:04,462 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254152510] [2019-10-15 01:16:04,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:16:04,463 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:04,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:16:04,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:16:04,464 INFO L87 Difference]: Start difference. First operand 3819 states and 5226 transitions. Second operand 7 states. [2019-10-15 01:16:05,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:05,729 INFO L93 Difference]: Finished difference Result 7546 states and 10345 transitions. [2019-10-15 01:16:05,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:05,730 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2019-10-15 01:16:05,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:05,751 INFO L225 Difference]: With dead ends: 7546 [2019-10-15 01:16:05,751 INFO L226 Difference]: Without dead ends: 3819 [2019-10-15 01:16:05,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2019-10-15 01:16:05,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2019-10-15 01:16:05,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2019-10-15 01:16:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-15 01:16:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5212 transitions. [2019-10-15 01:16:05,953 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5212 transitions. Word has length 195 [2019-10-15 01:16:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:05,953 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5212 transitions. [2019-10-15 01:16:05,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:16:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5212 transitions. [2019-10-15 01:16:05,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:16:05,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:05,965 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] [2019-10-15 01:16:06,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:06,183 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:06,184 INFO L82 PathProgramCache]: Analyzing trace with hash 947632913, now seen corresponding path program 1 times [2019-10-15 01:16:06,184 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:06,184 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552125620] [2019-10-15 01:16:06,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,185 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:06,185 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:06,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552125620] [2019-10-15 01:16:06,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915596529] [2019-10-15 01:16:06,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:06,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 2763 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:06,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:07,042 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:07,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:07,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:07,384 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:07,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:16:07,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:16:07,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963071771] [2019-10-15 01:16:07,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:16:07,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:07,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:16:07,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:07,390 INFO L87 Difference]: Start difference. First operand 3819 states and 5212 transitions. Second operand 7 states. [2019-10-15 01:16:08,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:08,789 INFO L93 Difference]: Finished difference Result 7262 states and 9851 transitions. [2019-10-15 01:16:08,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:08,790 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2019-10-15 01:16:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:08,811 INFO L225 Difference]: With dead ends: 7262 [2019-10-15 01:16:08,811 INFO L226 Difference]: Without dead ends: 3831 [2019-10-15 01:16:08,822 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 381 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:16:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3831 states. [2019-10-15 01:16:09,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3831 to 3819. [2019-10-15 01:16:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2019-10-15 01:16:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5210 transitions. [2019-10-15 01:16:09,132 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5210 transitions. Word has length 196 [2019-10-15 01:16:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:09,133 INFO L462 AbstractCegarLoop]: Abstraction has 3819 states and 5210 transitions. [2019-10-15 01:16:09,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:16:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5210 transitions. [2019-10-15 01:16:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:16:09,146 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:09,146 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:16:09,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:09,357 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:09,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:09,358 INFO L82 PathProgramCache]: Analyzing trace with hash -491268191, now seen corresponding path program 1 times [2019-10-15 01:16:09,358 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:09,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021661371] [2019-10-15 01:16:09,358 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,359 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:09,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:09,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021661371] [2019-10-15 01:16:09,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009356130] [2019-10-15 01:16:09,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:10,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 2761 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:10,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:10,212 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:10,212 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:10,512 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:10,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:10,646 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:16:10,748 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:16:10,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [7] total 21 [2019-10-15 01:16:10,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844125724] [2019-10-15 01:16:10,749 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:10,749 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:10,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:10,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:16:10,750 INFO L87 Difference]: Start difference. First operand 3819 states and 5210 transitions. Second operand 16 states. [2019-10-15 01:16:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:12,770 INFO L93 Difference]: Finished difference Result 7574 states and 10347 transitions. [2019-10-15 01:16:12,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:16:12,771 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 197 [2019-10-15 01:16:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:12,791 INFO L225 Difference]: With dead ends: 7574 [2019-10-15 01:16:12,792 INFO L226 Difference]: Without dead ends: 3841 [2019-10-15 01:16:12,802 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:12,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3841 states. [2019-10-15 01:16:12,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3841 to 3839. [2019-10-15 01:16:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3839 states. [2019-10-15 01:16:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3839 states to 3839 states and 5232 transitions. [2019-10-15 01:16:12,960 INFO L78 Accepts]: Start accepts. Automaton has 3839 states and 5232 transitions. Word has length 197 [2019-10-15 01:16:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:12,961 INFO L462 AbstractCegarLoop]: Abstraction has 3839 states and 5232 transitions. [2019-10-15 01:16:12,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:12,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3839 states and 5232 transitions. [2019-10-15 01:16:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:12,971 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:12,971 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:13,186 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:13,187 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:13,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:13,187 INFO L82 PathProgramCache]: Analyzing trace with hash -291918466, now seen corresponding path program 2 times [2019-10-15 01:16:13,187 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:13,187 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660955303] [2019-10-15 01:16:13,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:13,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:13,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660955303] [2019-10-15 01:16:13,313 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283658714] [2019-10-15 01:16:13,313 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true