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_spec7_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:52,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:52,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:52,767 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:52,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:52,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:52,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:52,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:52,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:52,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:52,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:52,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:52,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:52,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:52,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:52,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:52,783 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:52,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:52,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:52,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:52,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:52,796 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:52,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:52,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:52,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:52,803 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:52,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:52,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:52,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:52,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:52,809 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:52,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:52,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:52,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:52,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:52,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:52,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:52,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:52,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:52,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:52,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:52,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:17:52,845 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:52,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:52,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:52,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:52,848 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:52,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:52,849 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:52,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:52,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:52,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:52,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:52,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:52,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:52,851 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:52,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:52,851 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:52,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:52,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:52,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:52,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:52,853 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:52,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:52,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:52,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:52,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:52,854 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:52,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:52,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:52,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:17:53,163 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:53,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:53,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:53,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:53,182 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:53,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-13 21:17:53,263 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4c529c8/56df3bb10e3f4884a09ca04dfe6db21e/FLAG0921c179e [2019-10-13 21:17:53,932 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:53,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product33.cil.c [2019-10-13 21:17:53,972 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4c529c8/56df3bb10e3f4884a09ca04dfe6db21e/FLAG0921c179e [2019-10-13 21:17:54,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d4c529c8/56df3bb10e3f4884a09ca04dfe6db21e [2019-10-13 21:17:54,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:54,093 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:54,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:54,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:54,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:54,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7492c7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:54, skipping insertion in model container [2019-10-13 21:17:54,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:54" (1/1) ... [2019-10-13 21:17:54,113 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:54,202 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:55,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:55,039 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:55,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:55,326 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:55,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55 WrapperNode [2019-10-13 21:17:55,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:55,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:55,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:55,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:55,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... [2019-10-13 21:17:55,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:55,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:55,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:55,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:55,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:55,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:55,680 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:55,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:55,682 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:55,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:55,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:55,687 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:55,688 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:55,689 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:55,690 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:55,691 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:55,692 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:55,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:55,694 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:55,695 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:55,696 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:55,697 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:55,698 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:55,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:55,700 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:55,701 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:55,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:55,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:55,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:55,705 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:55,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:55,707 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:55,708 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:55,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:55,709 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:55,710 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:55,711 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:55,712 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:55,713 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:55,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 21:17:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:55,719 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:55,720 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:55,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:55,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:55,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:55,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:55,732 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:55,734 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:55,735 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:55,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:55,737 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:55,738 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:55,739 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:55,740 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:55,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:55,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:55,743 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:55,746 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 21:17:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:17:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:57,908 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:57,908 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:57,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:57 BoogieIcfgContainer [2019-10-13 21:17:57,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:57,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:57,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:57,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:57,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:54" (1/3) ... [2019-10-13 21:17:57,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758ba23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:57, skipping insertion in model container [2019-10-13 21:17:57,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:55" (2/3) ... [2019-10-13 21:17:57,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6758ba23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:57, skipping insertion in model container [2019-10-13 21:17:57,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:57" (3/3) ... [2019-10-13 21:17:57,923 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product33.cil.c [2019-10-13 21:17:57,938 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:57,949 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:57,961 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:57,994 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:57,994 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:57,994 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:57,995 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:57,995 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:57,995 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:57,995 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:57,995 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:58,041 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states. [2019-10-13 21:17:58,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:17:58,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,069 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,071 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1628617347, now seen corresponding path program 1 times [2019-10-13 21:17:58,084 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,085 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318326664] [2019-10-13 21:17:58,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,085 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:58,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318326664] [2019-10-13 21:17:58,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,746 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:58,747 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502250562] [2019-10-13 21:17:58,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:58,754 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:58,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:58,770 INFO L87 Difference]: Start difference. First operand 586 states. Second operand 2 states. [2019-10-13 21:17:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,859 INFO L93 Difference]: Finished difference Result 903 states and 1187 transitions. [2019-10-13 21:17:58,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:58,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-10-13 21:17:58,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:58,888 INFO L225 Difference]: With dead ends: 903 [2019-10-13 21:17:58,888 INFO L226 Difference]: Without dead ends: 563 [2019-10-13 21:17:58,896 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-10-13 21:17:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 563. [2019-10-13 21:17:58,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2019-10-13 21:17:58,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 743 transitions. [2019-10-13 21:17:58,997 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 743 transitions. Word has length 182 [2019-10-13 21:17:59,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,002 INFO L462 AbstractCegarLoop]: Abstraction has 563 states and 743 transitions. [2019-10-13 21:17:59,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:59,003 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 743 transitions. [2019-10-13 21:17:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 21:17:59,014 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,015 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,015 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,016 INFO L82 PathProgramCache]: Analyzing trace with hash -994536202, now seen corresponding path program 1 times [2019-10-13 21:17:59,016 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,017 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105594423] [2019-10-13 21:17:59,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,018 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,335 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:59,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105594423] [2019-10-13 21:17:59,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,336 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:59,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069466760] [2019-10-13 21:17:59,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:59,346 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:59,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,347 INFO L87 Difference]: Start difference. First operand 563 states and 743 transitions. Second operand 3 states. [2019-10-13 21:17:59,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,455 INFO L93 Difference]: Finished difference Result 886 states and 1152 transitions. [2019-10-13 21:17:59,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:59,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-13 21:17:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,464 INFO L225 Difference]: With dead ends: 886 [2019-10-13 21:17:59,464 INFO L226 Difference]: Without dead ends: 566 [2019-10-13 21:17:59,467 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2019-10-13 21:17:59,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 565. [2019-10-13 21:17:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2019-10-13 21:17:59,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 745 transitions. [2019-10-13 21:17:59,555 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 745 transitions. Word has length 183 [2019-10-13 21:17:59,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,556 INFO L462 AbstractCegarLoop]: Abstraction has 565 states and 745 transitions. [2019-10-13 21:17:59,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 745 transitions. [2019-10-13 21:17:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-13 21:17:59,564 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,565 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,565 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1125503284, now seen corresponding path program 1 times [2019-10-13 21:17:59,566 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,566 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627234545] [2019-10-13 21:17:59,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,566 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,880 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:59,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627234545] [2019-10-13 21:17:59,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:59,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514130717] [2019-10-13 21:17:59,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:59,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:59,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,883 INFO L87 Difference]: Start difference. First operand 565 states and 745 transitions. Second operand 3 states. [2019-10-13 21:17:59,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:59,926 INFO L93 Difference]: Finished difference Result 1108 states and 1491 transitions. [2019-10-13 21:17:59,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:59,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-13 21:17:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:59,933 INFO L225 Difference]: With dead ends: 1108 [2019-10-13 21:17:59,933 INFO L226 Difference]: Without dead ends: 608 [2019-10-13 21:17:59,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:59,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-10-13 21:17:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 607. [2019-10-13 21:17:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-10-13 21:17:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 817 transitions. [2019-10-13 21:17:59,969 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 817 transitions. Word has length 195 [2019-10-13 21:17:59,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:59,970 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 817 transitions. [2019-10-13 21:17:59,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 817 transitions. [2019-10-13 21:17:59,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:17:59,975 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:59,976 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:59,976 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:59,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:59,977 INFO L82 PathProgramCache]: Analyzing trace with hash -287022915, now seen corresponding path program 1 times [2019-10-13 21:17:59,977 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:59,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131490000] [2019-10-13 21:17:59,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,978 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:59,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,194 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:18:00,195 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131490000] [2019-10-13 21:18:00,196 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,196 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:00,196 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489729443] [2019-10-13 21:18:00,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:00,198 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:00,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,199 INFO L87 Difference]: Start difference. First operand 607 states and 817 transitions. Second operand 3 states. [2019-10-13 21:18:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:00,248 INFO L93 Difference]: Finished difference Result 1231 states and 1702 transitions. [2019-10-13 21:18:00,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:00,249 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:18:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:00,255 INFO L225 Difference]: With dead ends: 1231 [2019-10-13 21:18:00,256 INFO L226 Difference]: Without dead ends: 689 [2019-10-13 21:18:00,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2019-10-13 21:18:00,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 688. [2019-10-13 21:18:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 688 states. [2019-10-13 21:18:00,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 955 transitions. [2019-10-13 21:18:00,311 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 955 transitions. Word has length 196 [2019-10-13 21:18:00,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:00,312 INFO L462 AbstractCegarLoop]: Abstraction has 688 states and 955 transitions. [2019-10-13 21:18:00,313 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:00,313 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 955 transitions. [2019-10-13 21:18:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:18:00,397 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:00,398 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:00,398 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:00,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:00,400 INFO L82 PathProgramCache]: Analyzing trace with hash -2143849423, now seen corresponding path program 1 times [2019-10-13 21:18:00,400 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:00,401 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069130337] [2019-10-13 21:18:00,401 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,401 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:00,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:00,864 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:00,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069130337] [2019-10-13 21:18:00,865 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:00,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:18:00,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402954624] [2019-10-13 21:18:00,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:18:00,866 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:00,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:18:00,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:00,867 INFO L87 Difference]: Start difference. First operand 688 states and 955 transitions. Second operand 19 states. [2019-10-13 21:18:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:06,081 INFO L93 Difference]: Finished difference Result 2330 states and 3219 transitions. [2019-10-13 21:18:06,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:18:06,082 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-13 21:18:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:06,095 INFO L225 Difference]: With dead ends: 2330 [2019-10-13 21:18:06,096 INFO L226 Difference]: Without dead ends: 2023 [2019-10-13 21:18:06,099 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:06,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2019-10-13 21:18:06,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 1986. [2019-10-13 21:18:06,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1986 states. [2019-10-13 21:18:06,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 2762 transitions. [2019-10-13 21:18:06,195 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 2762 transitions. Word has length 199 [2019-10-13 21:18:06,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:06,196 INFO L462 AbstractCegarLoop]: Abstraction has 1986 states and 2762 transitions. [2019-10-13 21:18:06,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:06,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 2762 transitions. [2019-10-13 21:18:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:06,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:06,204 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:06,204 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:06,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:06,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1573247763, now seen corresponding path program 1 times [2019-10-13 21:18:06,205 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:06,205 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717054023] [2019-10-13 21:18:06,205 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:06,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:06,505 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717054023] [2019-10-13 21:18:06,505 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:06,505 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:06,505 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525389466] [2019-10-13 21:18:06,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:06,506 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:06,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:06,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:06,507 INFO L87 Difference]: Start difference. First operand 1986 states and 2762 transitions. Second operand 15 states. [2019-10-13 21:18:10,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:10,284 INFO L93 Difference]: Finished difference Result 3367 states and 4617 transitions. [2019-10-13 21:18:10,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:18:10,284 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-13 21:18:10,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:10,312 INFO L225 Difference]: With dead ends: 3367 [2019-10-13 21:18:10,312 INFO L226 Difference]: Without dead ends: 2088 [2019-10-13 21:18:10,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:18:10,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2019-10-13 21:18:10,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2056. [2019-10-13 21:18:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2056 states. [2019-10-13 21:18:10,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 2876 transitions. [2019-10-13 21:18:10,482 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 2876 transitions. Word has length 200 [2019-10-13 21:18:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:10,484 INFO L462 AbstractCegarLoop]: Abstraction has 2056 states and 2876 transitions. [2019-10-13 21:18:10,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:10,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 2876 transitions. [2019-10-13 21:18:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:10,496 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:10,496 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:10,497 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:10,497 INFO L82 PathProgramCache]: Analyzing trace with hash -673245661, now seen corresponding path program 1 times [2019-10-13 21:18:10,498 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:10,498 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895346470] [2019-10-13 21:18:10,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:10,499 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:10,499 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:10,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:10,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895346470] [2019-10-13 21:18:10,852 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:10,852 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:18:10,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122879374] [2019-10-13 21:18:10,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:18:10,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:10,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:18:10,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:18:10,857 INFO L87 Difference]: Start difference. First operand 2056 states and 2876 transitions. Second operand 16 states. [2019-10-13 21:18:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:11,321 INFO L93 Difference]: Finished difference Result 3527 states and 4863 transitions. [2019-10-13 21:18:11,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:18:11,321 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 200 [2019-10-13 21:18:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:11,344 INFO L225 Difference]: With dead ends: 3527 [2019-10-13 21:18:11,344 INFO L226 Difference]: Without dead ends: 2128 [2019-10-13 21:18:11,351 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:18:11,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2019-10-13 21:18:11,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2097. [2019-10-13 21:18:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2097 states. [2019-10-13 21:18:11,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 2923 transitions. [2019-10-13 21:18:11,499 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 2923 transitions. Word has length 200 [2019-10-13 21:18:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:11,500 INFO L462 AbstractCegarLoop]: Abstraction has 2097 states and 2923 transitions. [2019-10-13 21:18:11,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:18:11,500 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 2923 transitions. [2019-10-13 21:18:11,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:11,510 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:11,510 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:11,511 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:11,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:11,511 INFO L82 PathProgramCache]: Analyzing trace with hash 307966101, now seen corresponding path program 1 times [2019-10-13 21:18:11,512 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:11,512 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082293911] [2019-10-13 21:18:11,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:11,512 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:11,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:11,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082293911] [2019-10-13 21:18:11,818 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:11,819 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:11,819 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808051315] [2019-10-13 21:18:11,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:11,820 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:11,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:11,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:11,821 INFO L87 Difference]: Start difference. First operand 2097 states and 2923 transitions. Second operand 5 states. [2019-10-13 21:18:13,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:13,001 INFO L93 Difference]: Finished difference Result 5168 states and 7146 transitions. [2019-10-13 21:18:13,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:13,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-13 21:18:13,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:13,033 INFO L225 Difference]: With dead ends: 5168 [2019-10-13 21:18:13,033 INFO L226 Difference]: Without dead ends: 4480 [2019-10-13 21:18:13,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2019-10-13 21:18:13,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4449. [2019-10-13 21:18:13,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4449 states. [2019-10-13 21:18:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4449 states to 4449 states and 6166 transitions. [2019-10-13 21:18:13,316 INFO L78 Accepts]: Start accepts. Automaton has 4449 states and 6166 transitions. Word has length 200 [2019-10-13 21:18:13,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:13,317 INFO L462 AbstractCegarLoop]: Abstraction has 4449 states and 6166 transitions. [2019-10-13 21:18:13,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4449 states and 6166 transitions. [2019-10-13 21:18:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:18:13,331 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:13,332 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:13,332 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:13,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:13,333 INFO L82 PathProgramCache]: Analyzing trace with hash 328303476, now seen corresponding path program 1 times [2019-10-13 21:18:13,333 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:13,333 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46670964] [2019-10-13 21:18:13,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:13,334 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:13,659 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:13,660 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46670964] [2019-10-13 21:18:13,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:13,660 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:13,661 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249352182] [2019-10-13 21:18:13,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:13,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:13,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:13,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:13,662 INFO L87 Difference]: Start difference. First operand 4449 states and 6166 transitions. Second operand 7 states. [2019-10-13 21:18:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,832 INFO L93 Difference]: Finished difference Result 14458 states and 20304 transitions. [2019-10-13 21:18:15,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:15,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-13 21:18:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,918 INFO L225 Difference]: With dead ends: 14458 [2019-10-13 21:18:15,919 INFO L226 Difference]: Without dead ends: 11205 [2019-10-13 21:18:15,942 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11205 states. [2019-10-13 21:18:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11205 to 11183. [2019-10-13 21:18:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11183 states. [2019-10-13 21:18:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11183 states to 11183 states and 15568 transitions. [2019-10-13 21:18:16,636 INFO L78 Accepts]: Start accepts. Automaton has 11183 states and 15568 transitions. Word has length 200 [2019-10-13 21:18:16,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:16,638 INFO L462 AbstractCegarLoop]: Abstraction has 11183 states and 15568 transitions. [2019-10-13 21:18:16,638 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:16,638 INFO L276 IsEmpty]: Start isEmpty. Operand 11183 states and 15568 transitions. [2019-10-13 21:18:16,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:18:16,651 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:16,651 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:16,652 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:16,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1465027948, now seen corresponding path program 1 times [2019-10-13 21:18:16,652 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:16,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815974429] [2019-10-13 21:18:16,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,653 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,108 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:17,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815974429] [2019-10-13 21:18:17,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:18:17,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832876092] [2019-10-13 21:18:17,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:18:17,110 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:18:17,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:18:17,111 INFO L87 Difference]: Start difference. First operand 11183 states and 15568 transitions. Second operand 26 states. [2019-10-13 21:18:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:18,748 INFO L93 Difference]: Finished difference Result 21470 states and 30022 transitions. [2019-10-13 21:18:18,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-13 21:18:18,748 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 201 [2019-10-13 21:18:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:18,824 INFO L225 Difference]: With dead ends: 21470 [2019-10-13 21:18:18,824 INFO L226 Difference]: Without dead ends: 9480 [2019-10-13 21:18:18,874 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:18:18,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9480 states. [2019-10-13 21:18:19,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9480 to 9257. [2019-10-13 21:18:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9257 states. [2019-10-13 21:18:19,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9257 states to 9257 states and 12784 transitions. [2019-10-13 21:18:19,324 INFO L78 Accepts]: Start accepts. Automaton has 9257 states and 12784 transitions. Word has length 201 [2019-10-13 21:18:19,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:19,325 INFO L462 AbstractCegarLoop]: Abstraction has 9257 states and 12784 transitions. [2019-10-13 21:18:19,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:18:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 9257 states and 12784 transitions. [2019-10-13 21:18:19,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-13 21:18:19,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:19,336 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:19,336 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:19,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1427183847, now seen corresponding path program 1 times [2019-10-13 21:18:19,337 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:19,337 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965342976] [2019-10-13 21:18:19,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:19,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:19,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:19,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965342976] [2019-10-13 21:18:19,533 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:19,533 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:18:19,533 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698405184] [2019-10-13 21:18:19,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:18:19,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:18:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:19,535 INFO L87 Difference]: Start difference. First operand 9257 states and 12784 transitions. Second operand 10 states. [2019-10-13 21:18:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:19,679 INFO L93 Difference]: Finished difference Result 9322 states and 12886 transitions. [2019-10-13 21:18:19,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:19,679 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-13 21:18:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:19,717 INFO L225 Difference]: With dead ends: 9322 [2019-10-13 21:18:19,717 INFO L226 Difference]: Without dead ends: 9247 [2019-10-13 21:18:19,724 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9247 states. [2019-10-13 21:18:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9247 to 9239. [2019-10-13 21:18:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9239 states. [2019-10-13 21:18:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9239 states to 9239 states and 12742 transitions. [2019-10-13 21:18:20,242 INFO L78 Accepts]: Start accepts. Automaton has 9239 states and 12742 transitions. Word has length 205 [2019-10-13 21:18:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:20,242 INFO L462 AbstractCegarLoop]: Abstraction has 9239 states and 12742 transitions. [2019-10-13 21:18:20,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:18:20,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9239 states and 12742 transitions. [2019-10-13 21:18:20,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:20,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:20,255 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:20,255 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:20,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:20,256 INFO L82 PathProgramCache]: Analyzing trace with hash 404763986, now seen corresponding path program 1 times [2019-10-13 21:18:20,256 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:20,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057260065] [2019-10-13 21:18:20,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:20,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057260065] [2019-10-13 21:18:20,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:20,402 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:20,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750679102] [2019-10-13 21:18:20,402 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:20,403 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:20,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:20,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:20,403 INFO L87 Difference]: Start difference. First operand 9239 states and 12742 transitions. Second operand 5 states. [2019-10-13 21:18:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:20,589 INFO L93 Difference]: Finished difference Result 17309 states and 23560 transitions. [2019-10-13 21:18:20,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:20,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-13 21:18:20,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:20,634 INFO L225 Difference]: With dead ends: 17309 [2019-10-13 21:18:20,634 INFO L226 Difference]: Without dead ends: 9428 [2019-10-13 21:18:20,663 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2019-10-13 21:18:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 9343. [2019-10-13 21:18:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9343 states. [2019-10-13 21:18:21,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9343 states to 9343 states and 12876 transitions. [2019-10-13 21:18:21,069 INFO L78 Accepts]: Start accepts. Automaton has 9343 states and 12876 transitions. Word has length 210 [2019-10-13 21:18:21,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:21,070 INFO L462 AbstractCegarLoop]: Abstraction has 9343 states and 12876 transitions. [2019-10-13 21:18:21,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:21,070 INFO L276 IsEmpty]: Start isEmpty. Operand 9343 states and 12876 transitions. [2019-10-13 21:18:21,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-13 21:18:21,081 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:21,081 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:21,082 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:21,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:21,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1565961098, now seen corresponding path program 1 times [2019-10-13 21:18:21,082 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:21,083 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36944496] [2019-10-13 21:18:21,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,083 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,083 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:21,418 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:21,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36944496] [2019-10-13 21:18:21,419 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:21,419 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:18:21,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902103342] [2019-10-13 21:18:21,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:18:21,420 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:21,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:18:21,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:18:21,421 INFO L87 Difference]: Start difference. First operand 9343 states and 12876 transitions. Second operand 11 states. [2019-10-13 21:18:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:21,868 INFO L93 Difference]: Finished difference Result 17350 states and 23529 transitions. [2019-10-13 21:18:21,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:18:21,868 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2019-10-13 21:18:21,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:21,913 INFO L225 Difference]: With dead ends: 17350 [2019-10-13 21:18:21,914 INFO L226 Difference]: Without dead ends: 9353 [2019-10-13 21:18:21,936 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:21,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9353 states. [2019-10-13 21:18:22,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9353 to 9305. [2019-10-13 21:18:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9305 states. [2019-10-13 21:18:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9305 states to 9305 states and 12794 transitions. [2019-10-13 21:18:22,357 INFO L78 Accepts]: Start accepts. Automaton has 9305 states and 12794 transitions. Word has length 210 [2019-10-13 21:18:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:22,358 INFO L462 AbstractCegarLoop]: Abstraction has 9305 states and 12794 transitions. [2019-10-13 21:18:22,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 21:18:22,358 INFO L276 IsEmpty]: Start isEmpty. Operand 9305 states and 12794 transitions. [2019-10-13 21:18:22,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:18:22,373 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:22,373 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:22,373 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:22,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:22,374 INFO L82 PathProgramCache]: Analyzing trace with hash -792187402, now seen corresponding path program 1 times [2019-10-13 21:18:22,374 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:22,374 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371519232] [2019-10-13 21:18:22,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,374 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:22,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:22,533 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:22,533 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371519232] [2019-10-13 21:18:22,534 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:22,534 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:22,534 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683675754] [2019-10-13 21:18:22,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:22,535 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:22,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:22,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:22,536 INFO L87 Difference]: Start difference. First operand 9305 states and 12794 transitions. Second operand 5 states. [2019-10-13 21:18:22,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:22,731 INFO L93 Difference]: Finished difference Result 15002 states and 20191 transitions. [2019-10-13 21:18:22,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:22,731 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2019-10-13 21:18:22,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:22,761 INFO L225 Difference]: With dead ends: 15002 [2019-10-13 21:18:22,761 INFO L226 Difference]: Without dead ends: 7590 [2019-10-13 21:18:22,776 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7590 states. [2019-10-13 21:18:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7590 to 7584. [2019-10-13 21:18:23,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7584 states. [2019-10-13 21:18:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7584 states to 7584 states and 10404 transitions. [2019-10-13 21:18:23,220 INFO L78 Accepts]: Start accepts. Automaton has 7584 states and 10404 transitions. Word has length 212 [2019-10-13 21:18:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:23,221 INFO L462 AbstractCegarLoop]: Abstraction has 7584 states and 10404 transitions. [2019-10-13 21:18:23,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7584 states and 10404 transitions. [2019-10-13 21:18:23,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-13 21:18:23,231 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:23,232 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:23,233 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:23,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1834380725, now seen corresponding path program 1 times [2019-10-13 21:18:23,233 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:23,233 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321805302] [2019-10-13 21:18:23,234 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,234 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:23,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:23,406 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:23,407 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321805302] [2019-10-13 21:18:23,407 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:23,408 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:18:23,408 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176634091] [2019-10-13 21:18:23,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:18:23,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:23,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:18:23,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:18:23,411 INFO L87 Difference]: Start difference. First operand 7584 states and 10404 transitions. Second operand 6 states. [2019-10-13 21:18:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:24,303 INFO L93 Difference]: Finished difference Result 21098 states and 28664 transitions. [2019-10-13 21:18:24,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:18:24,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2019-10-13 21:18:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:24,371 INFO L225 Difference]: With dead ends: 21098 [2019-10-13 21:18:24,371 INFO L226 Difference]: Without dead ends: 15151 [2019-10-13 21:18:24,390 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 [2019-10-13 21:18:24,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15151 states.