java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:15:34,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:15:34,662 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:15:34,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:15:34,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:15:34,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:15:34,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:15:34,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:15:34,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:15:34,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:15:34,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:15:34,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:15:34,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:15:34,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:15:34,689 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:15:34,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:15:34,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:15:34,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:15:34,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:15:34,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:15:34,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:15:34,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:15:34,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:15:34,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:15:34,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:15:34,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:15:34,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:15:34,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:15:34,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:15:34,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:15:34,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:15:34,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:15:34,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:15:34,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:15:34,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:15:34,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:15:34,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:15:34,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:15:34,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:15:34,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:15:34,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:15:34,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:15:34,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:15:34,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:15:34,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:15:34,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:15:34,737 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:15:34,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:15:34,738 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:15:34,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:15:34,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:15:34,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:15:34,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:15:34,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:15:34,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:15:34,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:15:34,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:15:34,741 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:15:34,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:15:34,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:15:34,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:15:34,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:15:34,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:15:34,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:34,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:15:34,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:15:34,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:15:34,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:15:34,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:15:34,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:15:34,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:15:35,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:15:35,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:15:35,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:15:35,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:15:35,025 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:15:35,026 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-15 01:15:35,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea98e6f4/da06e1483fa54f978c42a606e20a4d10/FLAG678fae3a7 [2019-10-15 01:15:35,715 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:15:35,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-10-15 01:15:35,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea98e6f4/da06e1483fa54f978c42a606e20a4d10/FLAG678fae3a7 [2019-10-15 01:15:35,942 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ea98e6f4/da06e1483fa54f978c42a606e20a4d10 [2019-10-15 01:15:35,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:15:35,951 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:15:35,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:35,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:15:35,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:15:35,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:35" (1/1) ... [2019-10-15 01:15:35,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56400103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:35, skipping insertion in model container [2019-10-15 01:15:35,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:15:35" (1/1) ... [2019-10-15 01:15:35,966 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:15:36,049 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:15:36,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:36,757 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:15:36,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:15:37,043 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:15:37,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37 WrapperNode [2019-10-15 01:15:37,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:15:37,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:15:37,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:15:37,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:15:37,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... [2019-10-15 01:15:37,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:15:37,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:15:37,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:15:37,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:15:37,303 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:15:37,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:15:37,375 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:15:37,376 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:15:37,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:15:37,378 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:15:37,379 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:37,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:15:37,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:15:37,382 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:15:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:15:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:15:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:15:37,386 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:15:37,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:15:37,388 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:15:37,389 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:15:37,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:15:37,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:15:37,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:15:37,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:37,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:15:37,395 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:15:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:15:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:15:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:15:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:15:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:15:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:15:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:15:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:15:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:15:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:15:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:15:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:15:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:15:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:15:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:15:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:15:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:15:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:15:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:15:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:15:37,415 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:15:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:15:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:15:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:15:37,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:15:39,673 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:15:39,674 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:15:39,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:39 BoogieIcfgContainer [2019-10-15 01:15:39,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:15:39,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:15:39,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:15:39,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:15:39,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:15:35" (1/3) ... [2019-10-15 01:15:39,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790cb095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:39, skipping insertion in model container [2019-10-15 01:15:39,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:15:37" (2/3) ... [2019-10-15 01:15:39,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@790cb095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:15:39, skipping insertion in model container [2019-10-15 01:15:39,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:15:39" (3/3) ... [2019-10-15 01:15:39,683 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2019-10-15 01:15:39,693 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:15:39,702 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:15:39,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:15:39,772 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:15:39,772 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:15:39,772 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:15:39,772 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:15:39,776 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:15:39,776 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:15:39,777 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:15:39,777 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:15:39,822 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-10-15 01:15:39,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 01:15:39,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:39,867 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:39,871 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:39,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:39,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1933710850, now seen corresponding path program 1 times [2019-10-15 01:15:39,888 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:39,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131507433] [2019-10-15 01:15:39,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:39,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:39,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:40,734 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:40,735 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131507433] [2019-10-15 01:15:40,736 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:40,736 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:15:40,736 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615545720] [2019-10-15 01:15:40,743 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:15:40,745 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:40,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:15:40,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:40,763 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 2 states. [2019-10-15 01:15:40,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:40,875 INFO L93 Difference]: Finished difference Result 845 states and 1153 transitions. [2019-10-15 01:15:40,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:15:40,876 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-10-15 01:15:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:40,907 INFO L225 Difference]: With dead ends: 845 [2019-10-15 01:15:40,907 INFO L226 Difference]: Without dead ends: 545 [2019-10-15 01:15:40,918 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:15:40,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-10-15 01:15:41,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2019-10-15 01:15:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-15 01:15:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 748 transitions. [2019-10-15 01:15:41,021 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 748 transitions. Word has length 173 [2019-10-15 01:15:41,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:41,024 INFO L462 AbstractCegarLoop]: Abstraction has 545 states and 748 transitions. [2019-10-15 01:15:41,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:15:41,024 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 748 transitions. [2019-10-15 01:15:41,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 01:15:41,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:41,030 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:41,030 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:41,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:41,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1848846547, now seen corresponding path program 1 times [2019-10-15 01:15:41,031 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:41,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612437110] [2019-10-15 01:15:41,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:41,263 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612437110] [2019-10-15 01:15:41,263 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:41,263 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:41,264 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671573566] [2019-10-15 01:15:41,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:41,270 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:41,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:41,271 INFO L87 Difference]: Start difference. First operand 545 states and 748 transitions. Second operand 3 states. [2019-10-15 01:15:41,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:41,330 INFO L93 Difference]: Finished difference Result 828 states and 1118 transitions. [2019-10-15 01:15:41,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:41,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 01:15:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:41,336 INFO L225 Difference]: With dead ends: 828 [2019-10-15 01:15:41,336 INFO L226 Difference]: Without dead ends: 548 [2019-10-15 01:15:41,338 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-15 01:15:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 547. [2019-10-15 01:15:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-10-15 01:15:41,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 750 transitions. [2019-10-15 01:15:41,391 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 750 transitions. Word has length 174 [2019-10-15 01:15:41,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:41,392 INFO L462 AbstractCegarLoop]: Abstraction has 547 states and 750 transitions. [2019-10-15 01:15:41,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 750 transitions. [2019-10-15 01:15:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:15:41,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:41,402 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:41,402 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:41,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1241537791, now seen corresponding path program 1 times [2019-10-15 01:15:41,403 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:41,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358416362] [2019-10-15 01:15:41,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-10-15 01:15:41,604 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358416362] [2019-10-15 01:15:41,605 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:41,605 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:15:41,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006296944] [2019-10-15 01:15:41,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:15:41,610 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:41,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:15:41,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:41,611 INFO L87 Difference]: Start difference. First operand 547 states and 750 transitions. Second operand 3 states. [2019-10-15 01:15:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:41,654 INFO L93 Difference]: Finished difference Result 1070 states and 1498 transitions. [2019-10-15 01:15:41,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:15:41,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:15:41,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:41,659 INFO L225 Difference]: With dead ends: 1070 [2019-10-15 01:15:41,660 INFO L226 Difference]: Without dead ends: 588 [2019-10-15 01:15:41,661 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:15:41,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-10-15 01:15:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2019-10-15 01:15:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-10-15 01:15:41,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 819 transitions. [2019-10-15 01:15:41,685 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 819 transitions. Word has length 180 [2019-10-15 01:15:41,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:41,686 INFO L462 AbstractCegarLoop]: Abstraction has 587 states and 819 transitions. [2019-10-15 01:15:41,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:15:41,686 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 819 transitions. [2019-10-15 01:15:41,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 01:15:41,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:41,690 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:41,690 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:41,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:41,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2124332308, now seen corresponding path program 1 times [2019-10-15 01:15:41,691 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:41,691 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836097843] [2019-10-15 01:15:41,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:41,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:41,966 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836097843] [2019-10-15 01:15:41,967 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:41,968 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:15:41,968 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114554463] [2019-10-15 01:15:41,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:41,969 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:41,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:41,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:15:41,969 INFO L87 Difference]: Start difference. First operand 587 states and 819 transitions. Second operand 7 states. [2019-10-15 01:15:45,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:45,077 INFO L93 Difference]: Finished difference Result 1139 states and 1552 transitions. [2019-10-15 01:15:45,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:15:45,078 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-10-15 01:15:45,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:45,084 INFO L225 Difference]: With dead ends: 1139 [2019-10-15 01:15:45,084 INFO L226 Difference]: Without dead ends: 870 [2019-10-15 01:15:45,085 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:45,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-15 01:15:45,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-10-15 01:15:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-10-15 01:15:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1182 transitions. [2019-10-15 01:15:45,127 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1182 transitions. Word has length 181 [2019-10-15 01:15:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:45,128 INFO L462 AbstractCegarLoop]: Abstraction has 861 states and 1182 transitions. [2019-10-15 01:15:45,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:45,128 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1182 transitions. [2019-10-15 01:15:45,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 01:15:45,132 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:45,132 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:45,133 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:45,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:45,133 INFO L82 PathProgramCache]: Analyzing trace with hash 176199948, now seen corresponding path program 1 times [2019-10-15 01:15:45,133 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:45,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059386549] [2019-10-15 01:15:45,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:45,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:45,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059386549] [2019-10-15 01:15:45,663 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:45,663 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:15:45,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822236782] [2019-10-15 01:15:45,664 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:15:45,664 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:45,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:15:45,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:45,665 INFO L87 Difference]: Start difference. First operand 861 states and 1182 transitions. Second operand 20 states. [2019-10-15 01:15:46,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:46,144 INFO L93 Difference]: Finished difference Result 1520 states and 2076 transitions. [2019-10-15 01:15:46,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:15:46,144 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-10-15 01:15:46,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:46,151 INFO L225 Difference]: With dead ends: 1520 [2019-10-15 01:15:46,152 INFO L226 Difference]: Without dead ends: 971 [2019-10-15 01:15:46,154 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:15:46,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-10-15 01:15:46,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2019-10-15 01:15:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-10-15 01:15:46,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1333 transitions. [2019-10-15 01:15:46,200 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1333 transitions. Word has length 182 [2019-10-15 01:15:46,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:46,201 INFO L462 AbstractCegarLoop]: Abstraction has 969 states and 1333 transitions. [2019-10-15 01:15:46,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:15:46,201 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1333 transitions. [2019-10-15 01:15:46,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:15:46,205 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:46,205 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:46,205 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:46,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:46,206 INFO L82 PathProgramCache]: Analyzing trace with hash -427472189, now seen corresponding path program 1 times [2019-10-15 01:15:46,206 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:46,206 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522676122] [2019-10-15 01:15:46,206 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,207 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:46,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:46,394 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 01:15:46,394 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522676122] [2019-10-15 01:15:46,395 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:46,395 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:15:46,395 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814497460] [2019-10-15 01:15:46,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:15:46,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:46,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:15:46,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:15:46,397 INFO L87 Difference]: Start difference. First operand 969 states and 1333 transitions. Second operand 8 states. [2019-10-15 01:15:47,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:47,309 INFO L93 Difference]: Finished difference Result 2122 states and 2888 transitions. [2019-10-15 01:15:47,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:15:47,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-10-15 01:15:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:47,320 INFO L225 Difference]: With dead ends: 2122 [2019-10-15 01:15:47,320 INFO L226 Difference]: Without dead ends: 1665 [2019-10-15 01:15:47,322 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:15:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-10-15 01:15:47,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2019-10-15 01:15:47,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2019-10-15 01:15:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2251 transitions. [2019-10-15 01:15:47,399 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2251 transitions. Word has length 191 [2019-10-15 01:15:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:47,400 INFO L462 AbstractCegarLoop]: Abstraction has 1646 states and 2251 transitions. [2019-10-15 01:15:47,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:15:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2251 transitions. [2019-10-15 01:15:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:47,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:47,405 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:47,405 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:47,406 INFO L82 PathProgramCache]: Analyzing trace with hash 304313995, now seen corresponding path program 1 times [2019-10-15 01:15:47,406 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:47,406 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133367342] [2019-10-15 01:15:47,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:47,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:47,771 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:47,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133367342] [2019-10-15 01:15:47,772 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:15:47,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:15:47,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917649696] [2019-10-15 01:15:47,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:15:47,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:47,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:15:47,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:15:47,775 INFO L87 Difference]: Start difference. First operand 1646 states and 2251 transitions. Second operand 19 states. [2019-10-15 01:15:48,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:48,904 INFO L93 Difference]: Finished difference Result 2287 states and 3115 transitions. [2019-10-15 01:15:48,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-15 01:15:48,905 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-10-15 01:15:48,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:48,916 INFO L225 Difference]: With dead ends: 2287 [2019-10-15 01:15:48,917 INFO L226 Difference]: Without dead ends: 1645 [2019-10-15 01:15:48,920 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:15:48,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2019-10-15 01:15:48,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1644. [2019-10-15 01:15:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-10-15 01:15:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2246 transitions. [2019-10-15 01:15:48,996 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2246 transitions. Word has length 192 [2019-10-15 01:15:48,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:48,996 INFO L462 AbstractCegarLoop]: Abstraction has 1644 states and 2246 transitions. [2019-10-15 01:15:48,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:15:48,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2246 transitions. [2019-10-15 01:15:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:15:49,001 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:49,001 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:49,002 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:49,002 INFO L82 PathProgramCache]: Analyzing trace with hash 383856407, now seen corresponding path program 2 times [2019-10-15 01:15:49,002 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:49,003 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104141662] [2019-10-15 01:15:49,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,003 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:49,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:49,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104141662] [2019-10-15 01:15:49,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849713920] [2019-10-15 01:15:49,204 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:49,734 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-10-15 01:15:49,735 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:15:49,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-15 01:15:49,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:50,015 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-15 01:15:50,500 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:15:50,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-10-15 01:15:50,501 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74815215] [2019-10-15 01:15:50,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 01:15:50,503 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:50,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 01:15:50,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:50,504 INFO L87 Difference]: Start difference. First operand 1644 states and 2246 transitions. Second operand 14 states. [2019-10-15 01:15:52,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:52,540 INFO L93 Difference]: Finished difference Result 4904 states and 6737 transitions. [2019-10-15 01:15:52,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-15 01:15:52,541 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 192 [2019-10-15 01:15:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:52,572 INFO L225 Difference]: With dead ends: 4904 [2019-10-15 01:15:52,572 INFO L226 Difference]: Without dead ends: 4901 [2019-10-15 01:15:52,576 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 378 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=178, Invalid=1228, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:15:52,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4901 states. [2019-10-15 01:15:52,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4901 to 3532. [2019-10-15 01:15:52,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3532 states. [2019-10-15 01:15:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4906 transitions. [2019-10-15 01:15:52,808 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4906 transitions. Word has length 192 [2019-10-15 01:15:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:52,809 INFO L462 AbstractCegarLoop]: Abstraction has 3532 states and 4906 transitions. [2019-10-15 01:15:52,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 01:15:52,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4906 transitions. [2019-10-15 01:15:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-15 01:15:52,820 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:52,820 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:53,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:53,024 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:53,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:53,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2023623784, now seen corresponding path program 1 times [2019-10-15 01:15:53,026 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:53,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62288060] [2019-10-15 01:15:53,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:53,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:53,299 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:53,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62288060] [2019-10-15 01:15:53,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492199580] [2019-10-15 01:15:53,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:54,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 2795 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:54,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:54,233 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:15:54,233 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:54,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:54,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:54,591 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:54,592 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:54,592 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7, 7] total 16 [2019-10-15 01:15:54,592 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539913989] [2019-10-15 01:15:54,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:54,593 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:54,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:54,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:15:54,594 INFO L87 Difference]: Start difference. First operand 3532 states and 4906 transitions. Second operand 7 states. [2019-10-15 01:15:55,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:55,983 INFO L93 Difference]: Finished difference Result 7037 states and 9783 transitions. [2019-10-15 01:15:55,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:55,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2019-10-15 01:15:55,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:56,002 INFO L225 Difference]: With dead ends: 7037 [2019-10-15 01:15:56,003 INFO L226 Difference]: Without dead ends: 3544 [2019-10-15 01:15:56,017 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 379 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:15:56,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2019-10-15 01:15:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3534. [2019-10-15 01:15:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3534 states. [2019-10-15 01:15:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4909 transitions. [2019-10-15 01:15:56,204 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4909 transitions. Word has length 195 [2019-10-15 01:15:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:56,204 INFO L462 AbstractCegarLoop]: Abstraction has 3534 states and 4909 transitions. [2019-10-15 01:15:56,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4909 transitions. [2019-10-15 01:15:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:15:56,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:56,217 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:56,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:56,425 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:56,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:56,426 INFO L82 PathProgramCache]: Analyzing trace with hash 340956968, now seen corresponding path program 1 times [2019-10-15 01:15:56,426 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:56,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506777011] [2019-10-15 01:15:56,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:56,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:15:56,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506777011] [2019-10-15 01:15:56,637 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538125044] [2019-10-15 01:15:56,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:57,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 2793 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:15:57,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:15:57,425 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:57,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:15:57,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:57,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:15:58,032 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:58,033 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 9] total 20 [2019-10-15 01:15:58,033 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098707510] [2019-10-15 01:15:58,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:15:58,033 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:58,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:15:58,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:15:58,034 INFO L87 Difference]: Start difference. First operand 3534 states and 4909 transitions. Second operand 9 states. [2019-10-15 01:15:59,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:59,359 INFO L93 Difference]: Finished difference Result 7044 states and 9793 transitions. [2019-10-15 01:15:59,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:15:59,360 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2019-10-15 01:15:59,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:59,382 INFO L225 Difference]: With dead ends: 7044 [2019-10-15 01:15:59,382 INFO L226 Difference]: Without dead ends: 3552 [2019-10-15 01:15:59,395 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 376 SyntacticMatches, 4 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:15:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2019-10-15 01:15:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3550. [2019-10-15 01:15:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3550 states. [2019-10-15 01:15:59,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 4925 transitions. [2019-10-15 01:15:59,563 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 4925 transitions. Word has length 196 [2019-10-15 01:15:59,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:59,563 INFO L462 AbstractCegarLoop]: Abstraction has 3550 states and 4925 transitions. [2019-10-15 01:15:59,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:15:59,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 4925 transitions. [2019-10-15 01:15:59,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:15:59,574 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:59,574 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:15:59,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:59,783 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:59,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1355981044, now seen corresponding path program 1 times [2019-10-15 01:15:59,784 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:59,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249344023] [2019-10-15 01:15:59,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:59,785 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:59,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:59,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-15 01:16:00,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249344023] [2019-10-15 01:16:00,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891145118] [2019-10-15 01:16:00,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:00,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 2794 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:16:00,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:00,716 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:00,717 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:00,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:16:01,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:01,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 01:16:01,227 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:16:01,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [7] total 21 [2019-10-15 01:16:01,228 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174238894] [2019-10-15 01:16:01,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 01:16:01,229 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:01,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 01:16:01,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2019-10-15 01:16:01,230 INFO L87 Difference]: Start difference. First operand 3550 states and 4925 transitions. Second operand 16 states. [2019-10-15 01:16:03,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:03,104 INFO L93 Difference]: Finished difference Result 7036 states and 9774 transitions. [2019-10-15 01:16:03,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 01:16:03,104 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 197 [2019-10-15 01:16:03,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:03,121 INFO L225 Difference]: With dead ends: 7036 [2019-10-15 01:16:03,122 INFO L226 Difference]: Without dead ends: 3574 [2019-10-15 01:16:03,133 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 378 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:16:03,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2019-10-15 01:16:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 3572. [2019-10-15 01:16:03,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3572 states. [2019-10-15 01:16:03,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 4950 transitions. [2019-10-15 01:16:03,298 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 4950 transitions. Word has length 197 [2019-10-15 01:16:03,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:03,299 INFO L462 AbstractCegarLoop]: Abstraction has 3572 states and 4950 transitions. [2019-10-15 01:16:03,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 01:16:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 4950 transitions. [2019-10-15 01:16:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:03,307 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:03,307 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:03,514 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:03,515 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:03,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:03,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1911228752, now seen corresponding path program 2 times [2019-10-15 01:16:03,515 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:03,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137387032] [2019-10-15 01:16:03,516 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:03,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:03,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:03,648 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:03,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137387032] [2019-10-15 01:16:03,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001908248] [2019-10-15 01:16:03,649 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:04,253 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 01:16:04,253 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 01:16:04,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:16:04,266 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:16:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-15 01:16:04,358 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:16:04,784 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:04,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:16:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:05,188 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 01:16:05,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [7] total 16 [2019-10-15 01:16:05,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191178380] [2019-10-15 01:16:05,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:05,192 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:05,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:05,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2019-10-15 01:16:05,193 INFO L87 Difference]: Start difference. First operand 3572 states and 4950 transitions. Second operand 11 states. [2019-10-15 01:16:06,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:06,729 INFO L93 Difference]: Finished difference Result 6775 states and 9358 transitions. [2019-10-15 01:16:06,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:16:06,730 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 198 [2019-10-15 01:16:06,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:06,745 INFO L225 Difference]: With dead ends: 6775 [2019-10-15 01:16:06,745 INFO L226 Difference]: Without dead ends: 3327 [2019-10-15 01:16:06,756 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 386 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2019-10-15 01:16:06,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3319. [2019-10-15 01:16:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2019-10-15 01:16:06,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4544 transitions. [2019-10-15 01:16:06,889 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4544 transitions. Word has length 198 [2019-10-15 01:16:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:06,889 INFO L462 AbstractCegarLoop]: Abstraction has 3319 states and 4544 transitions. [2019-10-15 01:16:06,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4544 transitions. [2019-10-15 01:16:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:16:06,898 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:06,899 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:07,107 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:16:07,108 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:07,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:07,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2027081902, now seen corresponding path program 1 times [2019-10-15 01:16:07,108 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:07,109 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150998719] [2019-10-15 01:16:07,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:07,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:07,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:16:07,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150998719] [2019-10-15 01:16:07,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738845214] [2019-10-15 01:16:07,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true