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_spec9_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:18:32,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:18:32,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:18:32,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:18:32,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:18:32,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:18:32,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:18:32,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:18:32,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:18:32,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:18:32,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:18:32,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:18:32,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:18:32,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:18:32,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:18:32,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:18:32,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:18:32,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:18:32,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:18:32,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:18:32,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:18:32,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:18:32,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:18:32,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:18:32,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:18:32,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:18:32,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:18:32,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:18:32,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:18:32,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:18:32,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:18:32,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:18:32,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:18:32,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:18:32,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:18:32,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:18:32,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:18:32,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:18:32,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:18:32,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:18:32,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:18:32,086 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:18:32,100 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:18:32,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:18:32,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:18:32,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:18:32,102 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:18:32,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:18:32,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:18:32,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:18:32,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:18:32,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:18:32,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:18:32,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:18:32,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:18:32,104 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:18:32,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:18:32,104 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:18:32,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:18:32,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:18:32,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:18:32,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:18:32,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:18:32,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:18:32,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:18:32,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:18:32,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:18:32,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:18:32,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:18:32,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:18:32,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:18:32,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:18:32,414 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:18:32,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:18:32,420 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:18:32,421 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:18:32,421 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2019-10-15 01:18:32,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496d4e4d4/bc121d6a210844cebd94b085e6fbea8b/FLAG005582a33 [2019-10-15 01:18:33,231 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:18:33,232 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product35.cil.c [2019-10-15 01:18:33,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496d4e4d4/bc121d6a210844cebd94b085e6fbea8b/FLAG005582a33 [2019-10-15 01:18:33,358 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/496d4e4d4/bc121d6a210844cebd94b085e6fbea8b [2019-10-15 01:18:33,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:18:33,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:18:33,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:18:33,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:18:33,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:18:33,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:18:33" (1/1) ... [2019-10-15 01:18:33,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4772fc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:33, skipping insertion in model container [2019-10-15 01:18:33,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:18:33" (1/1) ... [2019-10-15 01:18:33,396 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:18:33,494 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:18:34,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:18:34,331 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:18:34,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:18:34,575 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:18:34,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34 WrapperNode [2019-10-15 01:18:34,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:18:34,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:18:34,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:18:34,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:18:34,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... [2019-10-15 01:18:34,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:18:34,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:18:34,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:18:34,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:18:34,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:18:34,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:18:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:18:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:18:34,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:18:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:18:34,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:18:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:18:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:18:34,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:18:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:18:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:18:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:18:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:18:34,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:18:34,864 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:18:34,864 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:18:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:18:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:18:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:18:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:18:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:18:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:18:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:18:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:18:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:18:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:18:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:18:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:18:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:18:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:18:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:18:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:18:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 01:18:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:18:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:18:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:18:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:18:34,876 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:18:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:18:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:18:34,879 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:18:34,880 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:18:34,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:18:34,882 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:18:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:18:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:18:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:18:34,883 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:18:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:18:34,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:18:34,884 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:18:34,885 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:18:34,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:18:34,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:18:34,888 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:18:34,889 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:18:34,890 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:18:34,891 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:18:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:18:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:18:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:18:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:18:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-15 01:18:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:18:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:18:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:18:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:18:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:18:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:18:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:18:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:18:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:18:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:18:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:18:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:18:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:18:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:18:37,133 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:18:37,134 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:18:37,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:18:37 BoogieIcfgContainer [2019-10-15 01:18:37,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:18:37,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:18:37,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:18:37,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:18:37,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:18:33" (1/3) ... [2019-10-15 01:18:37,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dc15c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:18:37, skipping insertion in model container [2019-10-15 01:18:37,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:18:34" (2/3) ... [2019-10-15 01:18:37,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dc15c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:18:37, skipping insertion in model container [2019-10-15 01:18:37,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:18:37" (3/3) ... [2019-10-15 01:18:37,147 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product35.cil.c [2019-10-15 01:18:37,165 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:18:37,176 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:18:37,190 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:18:37,231 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:18:37,231 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:18:37,231 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:18:37,231 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:18:37,231 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:18:37,231 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:18:37,232 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:18:37,232 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:18:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states. [2019-10-15 01:18:37,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-10-15 01:18:37,307 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:37,309 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:18:37,312 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:37,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:37,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1796376026, now seen corresponding path program 1 times [2019-10-15 01:18:37,329 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:37,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13891884] [2019-10-15 01:18:37,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:37,330 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:37,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:18:38,098 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13891884] [2019-10-15 01:18:38,099 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:38,099 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:18:38,099 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584839668] [2019-10-15 01:18:38,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:18:38,106 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:38,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:18:38,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:18:38,124 INFO L87 Difference]: Start difference. First operand 687 states. Second operand 2 states. [2019-10-15 01:18:38,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:38,236 INFO L93 Difference]: Finished difference Result 1049 states and 1409 transitions. [2019-10-15 01:18:38,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:18:38,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 167 [2019-10-15 01:18:38,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:38,271 INFO L225 Difference]: With dead ends: 1049 [2019-10-15 01:18:38,272 INFO L226 Difference]: Without dead ends: 658 [2019-10-15 01:18:38,283 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:18:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2019-10-15 01:18:38,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2019-10-15 01:18:38,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 658 states. [2019-10-15 01:18:38,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 890 transitions. [2019-10-15 01:18:38,403 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 890 transitions. Word has length 167 [2019-10-15 01:18:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:38,405 INFO L462 AbstractCegarLoop]: Abstraction has 658 states and 890 transitions. [2019-10-15 01:18:38,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:18:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 890 transitions. [2019-10-15 01:18:38,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-15 01:18:38,410 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:38,410 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:18:38,410 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:38,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:38,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1669127173, now seen corresponding path program 1 times [2019-10-15 01:18:38,411 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:38,411 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031211091] [2019-10-15 01:18:38,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:38,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:38,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:38,735 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:18:38,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031211091] [2019-10-15 01:18:38,735 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:38,736 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:38,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603968557] [2019-10-15 01:18:38,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:38,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:38,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:38,745 INFO L87 Difference]: Start difference. First operand 658 states and 890 transitions. Second operand 3 states. [2019-10-15 01:18:38,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:38,836 INFO L93 Difference]: Finished difference Result 1032 states and 1374 transitions. [2019-10-15 01:18:38,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:38,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2019-10-15 01:18:38,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:38,843 INFO L225 Difference]: With dead ends: 1032 [2019-10-15 01:18:38,844 INFO L226 Difference]: Without dead ends: 661 [2019-10-15 01:18:38,846 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-10-15 01:18:38,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 660. [2019-10-15 01:18:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2019-10-15 01:18:38,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 892 transitions. [2019-10-15 01:18:38,892 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 892 transitions. Word has length 168 [2019-10-15 01:18:38,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:38,893 INFO L462 AbstractCegarLoop]: Abstraction has 660 states and 892 transitions. [2019-10-15 01:18:38,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 892 transitions. [2019-10-15 01:18:38,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:18:38,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:38,898 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:18:38,898 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:38,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:38,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1780408052, now seen corresponding path program 1 times [2019-10-15 01:18:38,899 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:38,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314484057] [2019-10-15 01:18:38,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:38,901 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:38,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:18:39,130 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314484057] [2019-10-15 01:18:39,131 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:39,131 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:39,131 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332019686] [2019-10-15 01:18:39,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:39,132 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:39,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:39,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,133 INFO L87 Difference]: Start difference. First operand 660 states and 892 transitions. Second operand 3 states. [2019-10-15 01:18:39,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:39,172 INFO L93 Difference]: Finished difference Result 1300 states and 1788 transitions. [2019-10-15 01:18:39,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:39,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:18:39,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:39,177 INFO L225 Difference]: With dead ends: 1300 [2019-10-15 01:18:39,178 INFO L226 Difference]: Without dead ends: 705 [2019-10-15 01:18:39,180 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2019-10-15 01:18:39,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 704. [2019-10-15 01:18:39,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2019-10-15 01:18:39,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 967 transitions. [2019-10-15 01:18:39,216 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 967 transitions. Word has length 180 [2019-10-15 01:18:39,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:39,217 INFO L462 AbstractCegarLoop]: Abstraction has 704 states and 967 transitions. [2019-10-15 01:18:39,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:39,217 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 967 transitions. [2019-10-15 01:18:39,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:18:39,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:39,222 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:18:39,222 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:39,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1102871673, now seen corresponding path program 1 times [2019-10-15 01:18:39,223 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:39,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644003008] [2019-10-15 01:18:39,223 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,224 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:18:39,442 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644003008] [2019-10-15 01:18:39,442 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:39,442 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:39,443 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962466263] [2019-10-15 01:18:39,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:39,443 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:39,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:39,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,444 INFO L87 Difference]: Start difference. First operand 704 states and 967 transitions. Second operand 3 states. [2019-10-15 01:18:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:39,478 INFO L93 Difference]: Finished difference Result 1429 states and 2008 transitions. [2019-10-15 01:18:39,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:39,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-15 01:18:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:39,483 INFO L225 Difference]: With dead ends: 1429 [2019-10-15 01:18:39,484 INFO L226 Difference]: Without dead ends: 790 [2019-10-15 01:18:39,486 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2019-10-15 01:18:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 789. [2019-10-15 01:18:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-15 01:18:39,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1111 transitions. [2019-10-15 01:18:39,517 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1111 transitions. Word has length 181 [2019-10-15 01:18:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:39,518 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1111 transitions. [2019-10-15 01:18:39,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1111 transitions. [2019-10-15 01:18:39,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:18:39,523 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:39,523 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:39,523 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:39,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:39,524 INFO L82 PathProgramCache]: Analyzing trace with hash -441168396, now seen corresponding path program 1 times [2019-10-15 01:18:39,524 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:39,524 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892908910] [2019-10-15 01:18:39,524 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,525 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:18:39,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892908910] [2019-10-15 01:18:39,675 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:39,675 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:39,676 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113162478] [2019-10-15 01:18:39,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:39,676 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:39,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:39,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,677 INFO L87 Difference]: Start difference. First operand 789 states and 1111 transitions. Second operand 3 states. [2019-10-15 01:18:39,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:39,718 INFO L93 Difference]: Finished difference Result 1678 states and 2430 transitions. [2019-10-15 01:18:39,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:39,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-15 01:18:39,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:39,728 INFO L225 Difference]: With dead ends: 1678 [2019-10-15 01:18:39,728 INFO L226 Difference]: Without dead ends: 954 [2019-10-15 01:18:39,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:39,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2019-10-15 01:18:39,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 953. [2019-10-15 01:18:39,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 953 states. [2019-10-15 01:18:39,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1387 transitions. [2019-10-15 01:18:39,771 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1387 transitions. Word has length 182 [2019-10-15 01:18:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:39,772 INFO L462 AbstractCegarLoop]: Abstraction has 953 states and 1387 transitions. [2019-10-15 01:18:39,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:39,772 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1387 transitions. [2019-10-15 01:18:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 01:18:39,776 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:39,777 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:39,777 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:39,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:39,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1717289379, now seen corresponding path program 1 times [2019-10-15 01:18:39,778 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:39,778 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610649754] [2019-10-15 01:18:39,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,778 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:39,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:40,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:18:40,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610649754] [2019-10-15 01:18:40,028 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:40,028 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:40,029 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95683628] [2019-10-15 01:18:40,029 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:40,030 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:40,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:40,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:40,030 INFO L87 Difference]: Start difference. First operand 953 states and 1387 transitions. Second operand 3 states. [2019-10-15 01:18:40,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:40,076 INFO L93 Difference]: Finished difference Result 1452 states and 2059 transitions. [2019-10-15 01:18:40,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:40,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-10-15 01:18:40,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:40,083 INFO L225 Difference]: With dead ends: 1452 [2019-10-15 01:18:40,084 INFO L226 Difference]: Without dead ends: 1094 [2019-10-15 01:18:40,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:40,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2019-10-15 01:18:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1093. [2019-10-15 01:18:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2019-10-15 01:18:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1584 transitions. [2019-10-15 01:18:40,130 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1584 transitions. Word has length 184 [2019-10-15 01:18:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:40,130 INFO L462 AbstractCegarLoop]: Abstraction has 1093 states and 1584 transitions. [2019-10-15 01:18:40,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1584 transitions. [2019-10-15 01:18:40,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2019-10-15 01:18:40,139 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:40,139 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:40,140 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:40,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:40,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1766872220, now seen corresponding path program 1 times [2019-10-15 01:18:40,140 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:40,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052113115] [2019-10-15 01:18:40,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:40,141 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:40,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:18:40,476 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052113115] [2019-10-15 01:18:40,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:40,476 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:18:40,476 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894654063] [2019-10-15 01:18:40,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:18:40,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:40,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:18:40,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:18:40,478 INFO L87 Difference]: Start difference. First operand 1093 states and 1584 transitions. Second operand 6 states. [2019-10-15 01:18:41,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:41,248 INFO L93 Difference]: Finished difference Result 2597 states and 3733 transitions. [2019-10-15 01:18:41,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:18:41,248 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 340 [2019-10-15 01:18:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:41,261 INFO L225 Difference]: With dead ends: 2597 [2019-10-15 01:18:41,262 INFO L226 Difference]: Without dead ends: 2137 [2019-10-15 01:18:41,264 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:18:41,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2019-10-15 01:18:41,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2126. [2019-10-15 01:18:41,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2126 states. [2019-10-15 01:18:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2126 states to 2126 states and 3110 transitions. [2019-10-15 01:18:41,373 INFO L78 Accepts]: Start accepts. Automaton has 2126 states and 3110 transitions. Word has length 340 [2019-10-15 01:18:41,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:41,376 INFO L462 AbstractCegarLoop]: Abstraction has 2126 states and 3110 transitions. [2019-10-15 01:18:41,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:18:41,377 INFO L276 IsEmpty]: Start isEmpty. Operand 2126 states and 3110 transitions. [2019-10-15 01:18:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2019-10-15 01:18:41,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:41,402 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:41,402 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:41,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1623250226, now seen corresponding path program 1 times [2019-10-15 01:18:41,403 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:41,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737948672] [2019-10-15 01:18:41,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:41,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:41,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:41,844 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-10-15 01:18:41,845 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737948672] [2019-10-15 01:18:41,845 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:41,845 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:18:41,846 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536727829] [2019-10-15 01:18:41,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:18:41,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:41,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:18:41,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:18:41,848 INFO L87 Difference]: Start difference. First operand 2126 states and 3110 transitions. Second operand 11 states. [2019-10-15 01:18:42,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:42,399 INFO L93 Difference]: Finished difference Result 3043 states and 4319 transitions. [2019-10-15 01:18:42,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 01:18:42,400 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 341 [2019-10-15 01:18:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:42,415 INFO L225 Difference]: With dead ends: 3043 [2019-10-15 01:18:42,415 INFO L226 Difference]: Without dead ends: 2100 [2019-10-15 01:18:42,422 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:18:42,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2019-10-15 01:18:42,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2096. [2019-10-15 01:18:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2096 states. [2019-10-15 01:18:42,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 3059 transitions. [2019-10-15 01:18:42,542 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 3059 transitions. Word has length 341 [2019-10-15 01:18:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:42,544 INFO L462 AbstractCegarLoop]: Abstraction has 2096 states and 3059 transitions. [2019-10-15 01:18:42,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:18:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 3059 transitions. [2019-10-15 01:18:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2019-10-15 01:18:42,558 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:42,559 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:42,559 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:42,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:42,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1406225433, now seen corresponding path program 1 times [2019-10-15 01:18:42,560 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:42,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941091810] [2019-10-15 01:18:42,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,561 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:42,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-15 01:18:42,887 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941091810] [2019-10-15 01:18:42,888 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:42,888 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:42,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163707265] [2019-10-15 01:18:42,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:42,889 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:42,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:42,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:42,890 INFO L87 Difference]: Start difference. First operand 2096 states and 3059 transitions. Second operand 3 states. [2019-10-15 01:18:42,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:42,991 INFO L93 Difference]: Finished difference Result 4761 states and 7127 transitions. [2019-10-15 01:18:42,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:42,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 381 [2019-10-15 01:18:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:43,014 INFO L225 Difference]: With dead ends: 4761 [2019-10-15 01:18:43,015 INFO L226 Difference]: Without dead ends: 2730 [2019-10-15 01:18:43,025 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2019-10-15 01:18:43,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2728. [2019-10-15 01:18:43,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2728 states. [2019-10-15 01:18:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 4123 transitions. [2019-10-15 01:18:43,183 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 4123 transitions. Word has length 381 [2019-10-15 01:18:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:43,184 INFO L462 AbstractCegarLoop]: Abstraction has 2728 states and 4123 transitions. [2019-10-15 01:18:43,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:43,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 4123 transitions. [2019-10-15 01:18:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2019-10-15 01:18:43,204 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:43,205 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:43,205 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:43,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1962098209, now seen corresponding path program 1 times [2019-10-15 01:18:43,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:43,207 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355874947] [2019-10-15 01:18:43,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:43,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:43,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:43,626 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2019-10-15 01:18:43,626 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355874947] [2019-10-15 01:18:43,628 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:43,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:43,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999700471] [2019-10-15 01:18:43,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:43,632 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:43,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:43,632 INFO L87 Difference]: Start difference. First operand 2728 states and 4123 transitions. Second operand 3 states. [2019-10-15 01:18:43,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:43,787 INFO L93 Difference]: Finished difference Result 6609 states and 10239 transitions. [2019-10-15 01:18:43,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:43,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 367 [2019-10-15 01:18:43,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:43,819 INFO L225 Difference]: With dead ends: 6609 [2019-10-15 01:18:43,819 INFO L226 Difference]: Without dead ends: 3946 [2019-10-15 01:18:43,839 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2019-10-15 01:18:44,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3944. [2019-10-15 01:18:44,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3944 states. [2019-10-15 01:18:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 6155 transitions. [2019-10-15 01:18:44,053 INFO L78 Accepts]: Start accepts. Automaton has 3944 states and 6155 transitions. Word has length 367 [2019-10-15 01:18:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:44,053 INFO L462 AbstractCegarLoop]: Abstraction has 3944 states and 6155 transitions. [2019-10-15 01:18:44,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3944 states and 6155 transitions. [2019-10-15 01:18:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2019-10-15 01:18:44,078 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:44,079 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:44,080 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:44,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:44,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1166569383, now seen corresponding path program 1 times [2019-10-15 01:18:44,080 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:44,081 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388388478] [2019-10-15 01:18:44,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,081 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:44,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:44,458 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2019-10-15 01:18:44,459 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388388478] [2019-10-15 01:18:44,459 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:44,459 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:44,460 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778726976] [2019-10-15 01:18:44,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:44,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:44,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:44,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:44,461 INFO L87 Difference]: Start difference. First operand 3944 states and 6155 transitions. Second operand 3 states. [2019-10-15 01:18:44,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:44,693 INFO L93 Difference]: Finished difference Result 10161 states and 16175 transitions. [2019-10-15 01:18:44,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:44,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 383 [2019-10-15 01:18:44,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:44,738 INFO L225 Difference]: With dead ends: 10161 [2019-10-15 01:18:44,738 INFO L226 Difference]: Without dead ends: 6282 [2019-10-15 01:18:44,754 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:44,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2019-10-15 01:18:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 6280. [2019-10-15 01:18:45,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6280 states. [2019-10-15 01:18:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6280 states to 6280 states and 10027 transitions. [2019-10-15 01:18:45,077 INFO L78 Accepts]: Start accepts. Automaton has 6280 states and 10027 transitions. Word has length 383 [2019-10-15 01:18:45,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:45,079 INFO L462 AbstractCegarLoop]: Abstraction has 6280 states and 10027 transitions. [2019-10-15 01:18:45,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 6280 states and 10027 transitions. [2019-10-15 01:18:45,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2019-10-15 01:18:45,115 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:45,117 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:45,117 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:45,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1412159249, now seen corresponding path program 1 times [2019-10-15 01:18:45,118 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:45,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175448449] [2019-10-15 01:18:45,118 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:45,119 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:45,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2019-10-15 01:18:45,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175448449] [2019-10-15 01:18:45,846 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:18:45,846 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:18:45,846 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43300503] [2019-10-15 01:18:45,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:18:45,847 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:45,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:18:45,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:45,848 INFO L87 Difference]: Start difference. First operand 6280 states and 10027 transitions. Second operand 3 states. [2019-10-15 01:18:46,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:46,172 INFO L93 Difference]: Finished difference Result 16977 states and 27471 transitions. [2019-10-15 01:18:46,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:18:46,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 386 [2019-10-15 01:18:46,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:46,248 INFO L225 Difference]: With dead ends: 16977 [2019-10-15 01:18:46,248 INFO L226 Difference]: Without dead ends: 10762 [2019-10-15 01:18:46,276 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:18:46,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10762 states. [2019-10-15 01:18:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10762 to 10760. [2019-10-15 01:18:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10760 states. [2019-10-15 01:18:46,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10760 states to 10760 states and 17387 transitions. [2019-10-15 01:18:46,765 INFO L78 Accepts]: Start accepts. Automaton has 10760 states and 17387 transitions. Word has length 386 [2019-10-15 01:18:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:46,766 INFO L462 AbstractCegarLoop]: Abstraction has 10760 states and 17387 transitions. [2019-10-15 01:18:46,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:18:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 10760 states and 17387 transitions. [2019-10-15 01:18:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2019-10-15 01:18:46,836 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:46,836 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:46,837 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:46,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:46,837 INFO L82 PathProgramCache]: Analyzing trace with hash -2032256724, now seen corresponding path program 1 times [2019-10-15 01:18:46,837 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:46,838 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643099316] [2019-10-15 01:18:46,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:46,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:46,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-15 01:18:47,435 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643099316] [2019-10-15 01:18:47,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444950498] [2019-10-15 01:18:47,436 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 [2019-10-15 01:18:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:48,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 3986 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:18:48,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:18:48,617 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-15 01:18:48,618 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:49,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:18:49,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:49,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-15 01:18:49,970 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:18:49,971 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [22, 9] total 35 [2019-10-15 01:18:49,971 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771516033] [2019-10-15 01:18:49,972 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:18:49,972 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:49,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:18:49,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1100, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:18:49,973 INFO L87 Difference]: Start difference. First operand 10760 states and 17387 transitions. Second operand 9 states. [2019-10-15 01:18:52,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:52,091 INFO L93 Difference]: Finished difference Result 21498 states and 34754 transitions. [2019-10-15 01:18:52,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:18:52,091 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 349 [2019-10-15 01:18:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:52,134 INFO L225 Difference]: With dead ends: 21498 [2019-10-15 01:18:52,135 INFO L226 Difference]: Without dead ends: 10774 [2019-10-15 01:18:52,170 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 727 GetRequests, 687 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=111, Invalid=1295, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:18:52,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10774 states. [2019-10-15 01:18:52,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10774 to 10774. [2019-10-15 01:18:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10774 states. [2019-10-15 01:18:52,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10774 states to 10774 states and 17405 transitions. [2019-10-15 01:18:52,846 INFO L78 Accepts]: Start accepts. Automaton has 10774 states and 17405 transitions. Word has length 349 [2019-10-15 01:18:52,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:52,847 INFO L462 AbstractCegarLoop]: Abstraction has 10774 states and 17405 transitions. [2019-10-15 01:18:52,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:18:52,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10774 states and 17405 transitions. [2019-10-15 01:18:52,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2019-10-15 01:18:52,900 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:52,900 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:53,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:53,111 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:53,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1962759948, now seen corresponding path program 1 times [2019-10-15 01:18:53,112 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:53,112 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29030015] [2019-10-15 01:18:53,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:53,112 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:53,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-15 01:18:53,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29030015] [2019-10-15 01:18:53,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882166314] [2019-10-15 01:18:53,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:54,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 3987 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:18:54,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:18:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-10-15 01:18:54,743 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:18:55,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:55,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:18:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-15 01:18:55,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:18:55,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [22, 7] total 31 [2019-10-15 01:18:55,658 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652614095] [2019-10-15 01:18:55,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:18:55,660 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:18:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:18:55,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2019-10-15 01:18:55,660 INFO L87 Difference]: Start difference. First operand 10774 states and 17405 transitions. Second operand 7 states. [2019-10-15 01:18:57,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:18:57,708 INFO L93 Difference]: Finished difference Result 21501 states and 34887 transitions. [2019-10-15 01:18:57,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:18:57,709 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2019-10-15 01:18:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:18:57,748 INFO L225 Difference]: With dead ends: 21501 [2019-10-15 01:18:57,749 INFO L226 Difference]: Without dead ends: 10778 [2019-10-15 01:18:57,781 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 694 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=966, Unknown=0, NotChecked=0, Total=1056 [2019-10-15 01:18:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10778 states. [2019-10-15 01:18:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10778 to 10778. [2019-10-15 01:18:58,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10778 states. [2019-10-15 01:18:58,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10778 states to 10778 states and 17410 transitions. [2019-10-15 01:18:58,362 INFO L78 Accepts]: Start accepts. Automaton has 10778 states and 17410 transitions. Word has length 350 [2019-10-15 01:18:58,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:18:58,362 INFO L462 AbstractCegarLoop]: Abstraction has 10778 states and 17410 transitions. [2019-10-15 01:18:58,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:18:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10778 states and 17410 transitions. [2019-10-15 01:18:58,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2019-10-15 01:18:58,432 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:18:58,432 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:18:58,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:58,646 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:18:58,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:18:58,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1820389773, now seen corresponding path program 1 times [2019-10-15 01:18:58,648 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:18:58,648 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046656239] [2019-10-15 01:18:58,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:58,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:18:58,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:18:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 27 proven. 11 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-15 01:18:59,122 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046656239] [2019-10-15 01:18:59,123 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279125237] [2019-10-15 01:18:59,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:18:59,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:18:59,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 3988 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:19:00,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:19:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2019-10-15 01:19:00,321 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:19:01,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:19:01,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:19:01,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:19:01,439 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2019-10-15 01:19:01,439 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:19:01,439 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [22] total 36 [2019-10-15 01:19:01,440 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023471046] [2019-10-15 01:19:01,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:19:01,441 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:19:01,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:19:01,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2019-10-15 01:19:01,442 INFO L87 Difference]: Start difference. First operand 10778 states and 17410 transitions. Second operand 16 states.