/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:47:22,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:47:22,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:47:22,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:47:22,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:47:22,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:47:22,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:47:22,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:47:22,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:47:22,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:47:22,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:47:22,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:47:22,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:47:22,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:47:22,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:47:22,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:47:22,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:47:22,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:47:22,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:47:22,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:47:22,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:47:22,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:47:22,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:47:22,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:47:22,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:47:22,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:47:22,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:47:22,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:47:22,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:47:22,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:47:22,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:47:22,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:47:22,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:47:22,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:47:22,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:47:22,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:47:22,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:47:22,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:47:22,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:47:22,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:47:22,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:47:22,900 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 [2019-11-07 00:47:22,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:47:22,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:47:22,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:47:22,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:47:22,939 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:47:22,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:47:22,939 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:47:22,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:47:22,939 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:47:22,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:47:22,941 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:47:22,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:47:22,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:47:22,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:47:22,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:47:22,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:47:22,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:47:22,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:47:22,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:47:22,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:47:22,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:47:22,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:47:22,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:47:22,943 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 [2019-11-07 00:47:23,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:47:23,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:47:23,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:47:23,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:47:23,242 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:47:23,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-11-07 00:47:23,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8274c0b16/f7c532e7c59b43e2b108119e5d398b7e/FLAG43792a808 [2019-11-07 00:47:23,988 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:47:23,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product33.cil.c [2019-11-07 00:47:24,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8274c0b16/f7c532e7c59b43e2b108119e5d398b7e/FLAG43792a808 [2019-11-07 00:47:24,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8274c0b16/f7c532e7c59b43e2b108119e5d398b7e [2019-11-07 00:47:24,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:47:24,209 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:47:24,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:24,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:47:24,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:47:24,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:24" (1/1) ... [2019-11-07 00:47:24,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a032d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:24, skipping insertion in model container [2019-11-07 00:47:24,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:47:24" (1/1) ... [2019-11-07 00:47:24,224 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:47:24,312 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:47:25,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:25,091 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:47:25,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:47:25,373 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:47:25,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25 WrapperNode [2019-11-07 00:47:25,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:47:25,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:47:25,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:47:25,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:47:25,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (1/1) ... [2019-11-07 00:47:25,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:47:25,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:47:25,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:47:25,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:47:25,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (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 [2019-11-07 00:47:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:47:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:47:25,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:47:25,679 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:47:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:47:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:47:25,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:47:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:47:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:47:25,681 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:47:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:47:25,682 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:47:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:47:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:47:25,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:47:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:47:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:47:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:47:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:47:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:47:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:47:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:47:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-11-07 00:47:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:47:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:47:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:47:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:47:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:47:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:47:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:47:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:47:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:47:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:47:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:47:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:47:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:47:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:47:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:47:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:47:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:47:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:47:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:47:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:47:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:47:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:47:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:47:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:47:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:47:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:47:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:47:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:47:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:47:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:47:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:47:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:47:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:47:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:47:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:47:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:47:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:47:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:47:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:47:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:47:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:47:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:47:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:47:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:47:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:47:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:47:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:47:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:47:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:47:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:47:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:47:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:47:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:47:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:47:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:47:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:47:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:47:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:47:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:47:25,717 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:47:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:47:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:47:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:47:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:47:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:47:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:47:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:47:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:47:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:47:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:47:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:47:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:47:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:47:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:47:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-11-07 00:47:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:47:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:47:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:47:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:47:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:47:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:47:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:47:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:47:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:47:27,887 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:47:27,888 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:47:27,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:27 BoogieIcfgContainer [2019-11-07 00:47:27,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:47:27,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:47:27,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:47:27,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:47:27,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:47:24" (1/3) ... [2019-11-07 00:47:27,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f5aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:27, skipping insertion in model container [2019-11-07 00:47:27,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:47:25" (2/3) ... [2019-11-07 00:47:27,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455f5aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:47:27, skipping insertion in model container [2019-11-07 00:47:27,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:47:27" (3/3) ... [2019-11-07 00:47:27,898 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product33.cil.c [2019-11-07 00:47:27,911 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:47:27,922 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:47:27,934 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:47:27,967 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:47:27,967 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:47:27,967 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:47:27,967 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:47:27,967 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:47:27,968 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:47:27,968 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:47:27,968 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:47:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-11-07 00:47:28,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2019-11-07 00:47:28,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:28,027 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:28,029 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:28,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:28,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1359243450, now seen corresponding path program 1 times [2019-11-07 00:47:28,047 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:28,048 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449366419] [2019-11-07 00:47:28,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:28,874 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449366419] [2019-11-07 00:47:28,875 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:28,876 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:47:28,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067669287] [2019-11-07 00:47:28,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:47:28,886 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:47:28,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:47:28,904 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-11-07 00:47:28,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:28,990 INFO L93 Difference]: Finished difference Result 905 states and 1191 transitions. [2019-11-07 00:47:28,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:47:28,991 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 218 [2019-11-07 00:47:28,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:29,017 INFO L225 Difference]: With dead ends: 905 [2019-11-07 00:47:29,019 INFO L226 Difference]: Without dead ends: 564 [2019-11-07 00:47:29,032 INFO L630 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 [2019-11-07 00:47:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-11-07 00:47:29,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2019-11-07 00:47:29,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2019-11-07 00:47:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 744 transitions. [2019-11-07 00:47:29,141 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 744 transitions. Word has length 218 [2019-11-07 00:47:29,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:29,145 INFO L462 AbstractCegarLoop]: Abstraction has 564 states and 744 transitions. [2019-11-07 00:47:29,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:47:29,145 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 744 transitions. [2019-11-07 00:47:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2019-11-07 00:47:29,154 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:29,159 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:29,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:29,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1875979092, now seen corresponding path program 1 times [2019-11-07 00:47:29,160 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:29,160 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534595915] [2019-11-07 00:47:29,160 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:29,442 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534595915] [2019-11-07 00:47:29,442 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:29,443 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:29,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905762816] [2019-11-07 00:47:29,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:29,459 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:29,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:29,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:29,460 INFO L87 Difference]: Start difference. First operand 564 states and 744 transitions. Second operand 3 states. [2019-11-07 00:47:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:29,532 INFO L93 Difference]: Finished difference Result 888 states and 1154 transitions. [2019-11-07 00:47:29,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:29,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2019-11-07 00:47:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:29,542 INFO L225 Difference]: With dead ends: 888 [2019-11-07 00:47:29,544 INFO L226 Difference]: Without dead ends: 567 [2019-11-07 00:47:29,546 INFO L630 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 [2019-11-07 00:47:29,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2019-11-07 00:47:29,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 566. [2019-11-07 00:47:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-11-07 00:47:29,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 746 transitions. [2019-11-07 00:47:29,611 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 746 transitions. Word has length 219 [2019-11-07 00:47:29,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:29,612 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 746 transitions. [2019-11-07 00:47:29,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:29,613 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 746 transitions. [2019-11-07 00:47:29,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2019-11-07 00:47:29,623 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:29,624 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:29,624 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:29,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:29,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1298446294, now seen corresponding path program 1 times [2019-11-07 00:47:29,625 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:29,625 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549239222] [2019-11-07 00:47:29,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:29,928 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549239222] [2019-11-07 00:47:29,929 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:29,929 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:29,930 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123559176] [2019-11-07 00:47:29,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:29,935 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:29,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:29,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:29,936 INFO L87 Difference]: Start difference. First operand 566 states and 746 transitions. Second operand 3 states. [2019-11-07 00:47:30,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:30,006 INFO L93 Difference]: Finished difference Result 1110 states and 1493 transitions. [2019-11-07 00:47:30,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:30,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2019-11-07 00:47:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:30,019 INFO L225 Difference]: With dead ends: 1110 [2019-11-07 00:47:30,019 INFO L226 Difference]: Without dead ends: 609 [2019-11-07 00:47:30,023 INFO L630 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 [2019-11-07 00:47:30,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2019-11-07 00:47:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 608. [2019-11-07 00:47:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-11-07 00:47:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 818 transitions. [2019-11-07 00:47:30,075 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 818 transitions. Word has length 231 [2019-11-07 00:47:30,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:30,076 INFO L462 AbstractCegarLoop]: Abstraction has 608 states and 818 transitions. [2019-11-07 00:47:30,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:30,076 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 818 transitions. [2019-11-07 00:47:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-11-07 00:47:30,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:30,086 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:30,086 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:30,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:30,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1265412582, now seen corresponding path program 1 times [2019-11-07 00:47:30,090 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:30,090 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125109990] [2019-11-07 00:47:30,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:30,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-11-07 00:47:30,530 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125109990] [2019-11-07 00:47:30,530 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:30,534 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:47:30,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414664066] [2019-11-07 00:47:30,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:47:30,536 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:30,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:47:30,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:47:30,537 INFO L87 Difference]: Start difference. First operand 608 states and 818 transitions. Second operand 3 states. [2019-11-07 00:47:30,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:30,588 INFO L93 Difference]: Finished difference Result 1233 states and 1704 transitions. [2019-11-07 00:47:30,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:47:30,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2019-11-07 00:47:30,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:30,596 INFO L225 Difference]: With dead ends: 1233 [2019-11-07 00:47:30,596 INFO L226 Difference]: Without dead ends: 690 [2019-11-07 00:47:30,599 INFO L630 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 [2019-11-07 00:47:30,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2019-11-07 00:47:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 689. [2019-11-07 00:47:30,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2019-11-07 00:47:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 956 transitions. [2019-11-07 00:47:30,647 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 956 transitions. Word has length 232 [2019-11-07 00:47:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:30,648 INFO L462 AbstractCegarLoop]: Abstraction has 689 states and 956 transitions. [2019-11-07 00:47:30,648 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:47:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 956 transitions. [2019-11-07 00:47:30,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2019-11-07 00:47:30,657 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:30,658 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:30,658 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:30,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:30,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1880948969, now seen corresponding path program 1 times [2019-11-07 00:47:30,659 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:30,660 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563499497] [2019-11-07 00:47:30,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:31,144 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563499497] [2019-11-07 00:47:31,144 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:31,144 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:47:31,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719645852] [2019-11-07 00:47:31,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:47:31,145 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:31,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:47:31,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:47:31,147 INFO L87 Difference]: Start difference. First operand 689 states and 956 transitions. Second operand 19 states. [2019-11-07 00:47:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:36,665 INFO L93 Difference]: Finished difference Result 2335 states and 3224 transitions. [2019-11-07 00:47:36,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-07 00:47:36,665 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 235 [2019-11-07 00:47:36,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:36,679 INFO L225 Difference]: With dead ends: 2335 [2019-11-07 00:47:36,679 INFO L226 Difference]: Without dead ends: 2027 [2019-11-07 00:47:36,682 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-11-07 00:47:36,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2019-11-07 00:47:36,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1990. [2019-11-07 00:47:36,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2019-11-07 00:47:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2766 transitions. [2019-11-07 00:47:36,822 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2766 transitions. Word has length 235 [2019-11-07 00:47:36,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:36,825 INFO L462 AbstractCegarLoop]: Abstraction has 1990 states and 2766 transitions. [2019-11-07 00:47:36,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:47:36,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2766 transitions. [2019-11-07 00:47:36,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:47:36,834 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:36,834 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:36,835 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:36,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:36,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1271254735, now seen corresponding path program 1 times [2019-11-07 00:47:36,835 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:36,836 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945065909] [2019-11-07 00:47:36,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:36,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:37,104 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 00:47:37,104 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945065909] [2019-11-07 00:47:37,105 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:37,105 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:47:37,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772266969] [2019-11-07 00:47:37,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:47:37,106 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:37,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:47:37,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:47:37,107 INFO L87 Difference]: Start difference. First operand 1990 states and 2766 transitions. Second operand 11 states. [2019-11-07 00:47:37,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:37,848 INFO L93 Difference]: Finished difference Result 3347 states and 4565 transitions. [2019-11-07 00:47:37,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:47:37,849 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 236 [2019-11-07 00:47:37,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:37,866 INFO L225 Difference]: With dead ends: 3347 [2019-11-07 00:47:37,867 INFO L226 Difference]: Without dead ends: 2048 [2019-11-07 00:47:37,873 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:47:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2019-11-07 00:47:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 2048. [2019-11-07 00:47:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2048 states. [2019-11-07 00:47:38,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 2859 transitions. [2019-11-07 00:47:38,022 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 2859 transitions. Word has length 236 [2019-11-07 00:47:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:38,023 INFO L462 AbstractCegarLoop]: Abstraction has 2048 states and 2859 transitions. [2019-11-07 00:47:38,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:47:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 2859 transitions. [2019-11-07 00:47:38,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:47:38,036 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:38,037 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:38,037 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:38,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:38,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1218781435, now seen corresponding path program 1 times [2019-11-07 00:47:38,038 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:38,038 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081372054] [2019-11-07 00:47:38,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:38,655 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081372054] [2019-11-07 00:47:38,655 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:38,656 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:47:38,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592870673] [2019-11-07 00:47:38,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:47:38,658 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:38,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:47:38,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:47:38,662 INFO L87 Difference]: Start difference. First operand 2048 states and 2859 transitions. Second operand 15 states. [2019-11-07 00:47:42,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:42,328 INFO L93 Difference]: Finished difference Result 3460 states and 4756 transitions. [2019-11-07 00:47:42,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:47:42,328 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 236 [2019-11-07 00:47:42,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:42,344 INFO L225 Difference]: With dead ends: 3460 [2019-11-07 00:47:42,344 INFO L226 Difference]: Without dead ends: 2164 [2019-11-07 00:47:42,351 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:47:42,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-11-07 00:47:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-11-07 00:47:42,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-11-07 00:47:42,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-11-07 00:47:42,507 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 236 [2019-11-07 00:47:42,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:42,508 INFO L462 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-11-07 00:47:42,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:47:42,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-11-07 00:47:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-11-07 00:47:42,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:42,517 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:42,517 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:42,518 INFO L82 PathProgramCache]: Analyzing trace with hash -769998427, now seen corresponding path program 1 times [2019-11-07 00:47:42,518 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:42,518 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998370539] [2019-11-07 00:47:42,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:42,809 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:42,809 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998370539] [2019-11-07 00:47:42,809 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:42,810 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:47:42,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407233754] [2019-11-07 00:47:42,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:47:42,811 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:42,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:47:42,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:47:42,812 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 15 states. [2019-11-07 00:47:46,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:46,849 INFO L93 Difference]: Finished difference Result 3522 states and 4849 transitions. [2019-11-07 00:47:46,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-11-07 00:47:46,850 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 237 [2019-11-07 00:47:46,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:46,866 INFO L225 Difference]: With dead ends: 3522 [2019-11-07 00:47:46,866 INFO L226 Difference]: Without dead ends: 2164 [2019-11-07 00:47:46,872 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-11-07 00:47:46,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2164 states. [2019-11-07 00:47:46,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2164 to 2122. [2019-11-07 00:47:46,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2122 states. [2019-11-07 00:47:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 2981 transitions. [2019-11-07 00:47:47,006 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 2981 transitions. Word has length 237 [2019-11-07 00:47:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:47,006 INFO L462 AbstractCegarLoop]: Abstraction has 2122 states and 2981 transitions. [2019-11-07 00:47:47,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:47:47,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 2981 transitions. [2019-11-07 00:47:47,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-11-07 00:47:47,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:47,015 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:47,015 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1035730964, now seen corresponding path program 1 times [2019-11-07 00:47:47,016 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:47,016 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483845722] [2019-11-07 00:47:47,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:47,238 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 00:47:47,238 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483845722] [2019-11-07 00:47:47,240 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:47,240 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:47:47,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368395879] [2019-11-07 00:47:47,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:47:47,243 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:47,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:47:47,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:47:47,244 INFO L87 Difference]: Start difference. First operand 2122 states and 2981 transitions. Second operand 5 states. [2019-11-07 00:47:47,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:47,350 INFO L93 Difference]: Finished difference Result 3138 states and 4303 transitions. [2019-11-07 00:47:47,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:47:47,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2019-11-07 00:47:47,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:47,366 INFO L225 Difference]: With dead ends: 3138 [2019-11-07 00:47:47,366 INFO L226 Difference]: Without dead ends: 1736 [2019-11-07 00:47:47,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:47:47,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2019-11-07 00:47:47,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1734. [2019-11-07 00:47:47,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1734 states. [2019-11-07 00:47:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2444 transitions. [2019-11-07 00:47:47,501 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2444 transitions. Word has length 240 [2019-11-07 00:47:47,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:47,502 INFO L462 AbstractCegarLoop]: Abstraction has 1734 states and 2444 transitions. [2019-11-07 00:47:47,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:47:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2444 transitions. [2019-11-07 00:47:47,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:47:47,516 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:47,516 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:47,516 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:47,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:47,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1576503556, now seen corresponding path program 1 times [2019-11-07 00:47:47,517 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:47,517 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710980090] [2019-11-07 00:47:47,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-11-07 00:47:47,844 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710980090] [2019-11-07 00:47:47,845 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:47,845 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-11-07 00:47:47,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318650081] [2019-11-07 00:47:47,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-07 00:47:47,847 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:47,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-07 00:47:47,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-11-07 00:47:47,849 INFO L87 Difference]: Start difference. First operand 1734 states and 2444 transitions. Second operand 16 states. [2019-11-07 00:47:48,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:48,207 INFO L93 Difference]: Finished difference Result 2788 states and 3837 transitions. [2019-11-07 00:47:48,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 00:47:48,207 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 236 [2019-11-07 00:47:48,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:48,219 INFO L225 Difference]: With dead ends: 2788 [2019-11-07 00:47:48,219 INFO L226 Difference]: Without dead ends: 1755 [2019-11-07 00:47:48,226 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:47:48,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2019-11-07 00:47:48,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1742. [2019-11-07 00:47:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2019-11-07 00:47:48,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2446 transitions. [2019-11-07 00:47:48,311 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2446 transitions. Word has length 236 [2019-11-07 00:47:48,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:48,312 INFO L462 AbstractCegarLoop]: Abstraction has 1742 states and 2446 transitions. [2019-11-07 00:47:48,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-07 00:47:48,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2446 transitions. [2019-11-07 00:47:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:47:48,319 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:48,320 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:48,320 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:48,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:48,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1072234906, now seen corresponding path program 1 times [2019-11-07 00:47:48,321 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:48,321 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710066275] [2019-11-07 00:47:48,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 00:47:48,495 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710066275] [2019-11-07 00:47:48,495 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:47:48,495 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:47:48,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84168280] [2019-11-07 00:47:48,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:47:48,496 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:48,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:47:48,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:47:48,497 INFO L87 Difference]: Start difference. First operand 1742 states and 2446 transitions. Second operand 5 states. [2019-11-07 00:47:49,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:49,751 INFO L93 Difference]: Finished difference Result 4469 states and 6181 transitions. [2019-11-07 00:47:49,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:47:49,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2019-11-07 00:47:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:49,779 INFO L225 Difference]: With dead ends: 4469 [2019-11-07 00:47:49,779 INFO L226 Difference]: Without dead ends: 3784 [2019-11-07 00:47:49,785 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:47:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2019-11-07 00:47:49,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 3755. [2019-11-07 00:47:49,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3755 states. [2019-11-07 00:47:49,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 5223 transitions. [2019-11-07 00:47:49,999 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 5223 transitions. Word has length 236 [2019-11-07 00:47:49,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:49,999 INFO L462 AbstractCegarLoop]: Abstraction has 3755 states and 5223 transitions. [2019-11-07 00:47:50,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:47:50,000 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 5223 transitions. [2019-11-07 00:47:50,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-11-07 00:47:50,011 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:50,011 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:50,012 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1057984761, now seen corresponding path program 1 times [2019-11-07 00:47:50,012 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:50,013 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294363618] [2019-11-07 00:47:50,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:50,242 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294363618] [2019-11-07 00:47:50,242 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822395192] [2019-11-07 00:47:50,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-07 00:47:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:50,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 3032 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 00:47:50,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:47:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:51,185 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 00:47:51,585 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 00:47:51,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:51,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-07 00:47:51,885 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:51,885 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-11-07 00:47:51,886 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-11-07 00:47:51,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603123339] [2019-11-07 00:47:51,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 00:47:51,888 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:47:51,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 00:47:51,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-11-07 00:47:51,889 INFO L87 Difference]: Start difference. First operand 3755 states and 5223 transitions. Second operand 9 states. [2019-11-07 00:47:53,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:47:53,376 INFO L93 Difference]: Finished difference Result 7488 states and 10426 transitions. [2019-11-07 00:47:53,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 00:47:53,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 236 [2019-11-07 00:47:53,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:47:53,399 INFO L225 Difference]: With dead ends: 7488 [2019-11-07 00:47:53,399 INFO L226 Difference]: Without dead ends: 3769 [2019-11-07 00:47:53,411 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 465 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-11-07 00:47:53,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2019-11-07 00:47:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3769. [2019-11-07 00:47:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3769 states. [2019-11-07 00:47:53,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 5241 transitions. [2019-11-07 00:47:53,611 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 5241 transitions. Word has length 236 [2019-11-07 00:47:53,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:47:53,612 INFO L462 AbstractCegarLoop]: Abstraction has 3769 states and 5241 transitions. [2019-11-07 00:47:53,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 00:47:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 5241 transitions. [2019-11-07 00:47:53,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-11-07 00:47:53,623 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:47:53,624 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:47:53,842 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 00:47:53,842 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:47:53,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:47:53,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2058967403, now seen corresponding path program 1 times [2019-11-07 00:47:53,844 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:47:53,844 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117229865] [2019-11-07 00:47:53,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:47:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:47:54,176 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117229865] [2019-11-07 00:47:54,176 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903491009] [2019-11-07 00:47:54,177 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 [2019-11-07 00:47:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:47:54,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-07 00:47:54,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 00:47:55,293 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 00:47:55,294 INFO L321 TraceCheckSpWp]: Computing backward predicates...